- Today's Editor:
- Cleve Moler
- The MathWorks, Inc.
- moler@mathworks.com

- Ake Bjorck Honored
- Happy Birthday Vyacheslav Lebedev
- Looking for BICG Code
- Change of Address for Gassan Abdoulaev
- Triangles' Areas and Tetrahedrons' Volumes
- Numerical Software Released
- Conference on Complex Systems
- Workshop on Accurate Solution of Eigenvalue Problems
- Conference on Distributed Systems
- Rhine Workshop on Computer Algebra
- Conference on Monte Carlo and Quasi-Monte Carlo Methods
- Workshop on Multiscale Computational Methods in Chemistry
- Conference and Workshop on Inverse Problems
- SPEEDUP Workshop
- John von Neumann Fellowship at Sandia Laboratories
- Faculty Positions at UCLA
- Faculty Position at the University of Muenster, Germany
- Visiting Faculty Position at Arizona State University
- Research Positions at the MINGLE Project
- Postdoctoral Position at University of Utah
- Postdoctoral Position at University of Waterloo
- Student Position at University of Bremen
- Contents, Optimization Methods and Software
- Contents, Journal of Approximation Theory

**URL for the World Wide Web:**
http://www.netlib.org/na-net/na_home.html

-------------------------------------------------------

From: Lars Elden <laeld@mai.liu.se>

Date: Fri, 28 Jan 2000 08:34:34 +0100 (MET)

**Subject: Ake Bjorck Honored**

In December 1999 Ake Bjorck turned 65. On Jan 21, 2000 the mathematics

department at Linkoping University organized a conference to honor Ake

and celebrate his contributions and leadership in numerical

analysis. The theme of the conference was "Thirty years of numerical

linear algebra in Sweden", and the speakers were L. Elde'n,

T. Elfving, G. Dahlquist, O. Axelsson, B. Kagstrom, A. Ruhe, J-g. Sun,

and P-A Wedin.

65 is the retirement age in Sweden. I know that Ake will not stop

working, but instead he will continue to devote his time to what he

loves: research in numerical linear algebra and editorial work for BIT

and other journals.

For a photo of Ake at the conference dinner see

http://www.math.liu.se/Num/bjorckconf/foto/pages/50_IMG_jpg.htm

The conference program and more photos can be found via

http://www.math.liu.se/Num/bjorckconf/

(the program is in English and the link to the photos is just below).

CONGRATULATIONS AKE!

Lars Elde'n

------------------------------

From: Andrew Knyazev <andrew.knyazev@cudenver.edu>

Date: Sun, 23 Jan 2000 14:34:09 -0700

**Subject: Happy Birthday Vyacheslav Lebedev**

Vyacheslav I. Lebedev celebrates his 70th birthday on Jan. 27, 2000.

V.I. Lebedev is an author of other a hundred papers and several books

on different subjects, e.g., on: quadratures, parallel algorithms,

difference schemes for solving stiff systems of ODEs and PDEs,

Chebyshev iterative methods, composition methods, Poincare-Steklov

operators, and Schwartz algorithms, numerical methods in the theory

of neutron transport, and finite-difference methods and discrete

gradient and divergence operators.

V.I. Lebedev continues to work at the

Inst. of Numerical Mathematics

Gubkina street, 8, Moscow, Russia, 117951

7-(095)-938-1821 (fax), nucrect@inm.ras.ru (email)

On behalf of a group of his former Ph.D. students,

it is a pleasure to wish him all the best.

Happy Birthday Vyacheslav Ivanovich!

------------------------------

From: Hugo Scolnik <scolnik@fd.com.ar>

Date: Mon, 24 Jan 2000 14:46:09 -0300

**Subject: Looking for BICG Code**

I am looking for a self-contained Fortran code implementing BICG (that is, a

code which does not require from the end-user to supply a preconditioner, etc).

Any help will be welcomed !

Thanks

Hugo Scolnik

Department of Computer Science

University of Buenos Aires

------------------------------

From: Gassan Abdoulaev <abdoulaev@recon2.hscbklyn.edu>

Date: Mon, 24 Jan 2000 15:08:38 -0800

**Subject: Change of Address for Gassan Abdoulaev**

Dear collegues,

I have take a position in the State University of New York,

the laboratory of optical tomography.

My new address is:

Gassan Abdoulaev phone: (718)270 4561

SUNY-Downstate Medical Center fax: (718)270 3313

Dept. of Pathology, Box 25 email: gabdoulaev@netmail.hscbklyn.edu

450 Clarkson Ave. abdoulaev@recon2.hscbklyn.edu

Brooklyn, NY 11203, USA WWW(old): http://www.crs4.it/~gassan/

------------------------------

From: W. Kahan <wkahan@CS.Berkeley.EDU>

Date: Mon, 24 Jan 2000 20:03:59 -0800 (PST)

**Subject: Triangles' Areas and Tetrahedrons' Volumes**

In NA Digest V.00 #01 (2 Jan. 2000), Joel Malard <JM.Malard@pnl.gov>

asks for a more "robust" formula than his to compute the area A(x,y,z)

of a triangle given its edge-lengths x, y, z . Factor his formula to

obtain a formula attributed by early Arab scholars to Archimedes

(287-212 BC) but associated still with Heron of Alexandria (around

100 AD): A(x,y,z) := Sqrt( (x+y+z)(x-y+z)(y-z+x)(z-x+y) )/4 . For a

well-formed triangle all three "Facial Differences" like x-y+z must

be positive. Just this formula for A(x,y,z) is numerically robust in

all floating-point arithmetics nowadays, except Cray's X-MP to J90

series and other machines' software-simulated doubled-double precision,

provided each facial difference like x-y+z is computed from an

expression like (max{x,z} - y) + min{x,z} . For more details see my

"Miscalculating Area and Angles of a Needle-Like Triangle" posted on

cs.berkeley.edu/~wkahan/Triangle.pdf . Note that the formula A(x,y,z)

is inappropriate if the triangle's edge-lengths must first be computed

from its vertices' coordinates; in such a case formulas involving dot-

and cross-products work better provided extra precision is carried,

but this is a story for another day. Some details appear in pp. 48-55

and 58-63 of Joe Darcy's and my "How Java's Floating-Point Hurts

Everyone Everywhere" posted on cs.berkeley.edu/~wkahan/JAVAhurt.pdf .

Also Malard "would like to compute the volume of a tetrahedron from

the areas of its facets". But by themselves the four facets' areas do

not determine the volume except to impose bounds upon it. Neither does

much help come from classical formulas like one attributed 1500 years

ago to Liu Hui in China: The volume of a tetrahedron is one third

the product of the distance between any two opposite edges (perhaps

extended) and the area of a triangle two of whose edges are parallel

translated copies of those opposite edges. Analogous to Malard's

A(x,y,z) = Sqrt( (2xy)^2 + (2yz)^2 + (2zx)^2 - (x^2 + y^2 + z^2)^2 )/4

= Sqrt( 2(xy)^2 + 2(yz)^2 + 2(zx)^2 - x^4 - y^4 - z^4 )/4

are non-robust formulas for the volume of a tetrahedron in terms solely

of the squares of its six edge-lengths:

VOL = Sqrt( u^2 U^2 ( v^2 + V^2 + w^2 + W^2 - u^2 - U^2 ) +

+ v^2 V^2 ( w^2 + W^2 + u^2 + U^2 - v^2 - V^2 ) +

+ w^2 W^2 ( u^2 + U^2 + v^2 + V^2 - u^2 - U^2 ) -

- U^2 V^2 W^2 - U^2 v^2 w^2 - u^2 V^2 w^2 - u^2 v^2 W^2 )/12 .

Here u, v, w are the lengths of the three edges adjacent to a vertex,

and the respective opposite edges have lengths U, V and W . All

twelve of the facial differences u-V+w, U-V+W, ... (of which at most

six are linearly independent) must be positive; though necessary this

condition is insufficient to ensure the tetrahedron's solidity, so no

formula for its volume in terms of sums and products of edge-lengths

and facial differences _ without other subtractions _ can exist.

Since the squared volume is quadratic in each squared length separately

it can be factored in ways that attenuate but do not eliminate losses

due to numerical cancellation. Here is an example: Compute in turn

p := (w-u)(w+u) + (W-U)(W+U) = (w-U)(w+U) + (W-u)(W+u) ; (choose one)

q := (2vV - p)(2vV + p) ;

a := 4A(u,v,W) ; d := 4A(U,v,w) ; (use the robust formula for 4A )

r := ( q - (a-d)^2 )( (a+d)^2 - q ) ;

VOL := Sqrt(r)/(48v) if both factors of q and of r are positive;

otherwise the tetrahedron is degenerate or unreal.

There is a formula for the tetrahedron's volume that involves all four

facet's areas: First form the product of all eight expressions

A(U,V,W) +/- A(U,v,w) +/- A(u,V,w) +/- A(u,v,W)

and then divide it by a polynomial of degree ten homogeneous in u, v,

w, U, V, W and unchanged by the 24 permutations of the tetrahedron's

four vertices; the quotient is the volume's square. The explicit

expression I have for that polynomial is not a good way to compute it.

Still the volume of a nearly flattened tetrahedron remains difficult to

compute as accurately as is deserved without the use of extra precision

so far as I know. The problem may be difficult because the formula for

VOL does not factor into sufficiently simple factors.

Prof. W. Kahan <wkahan@cs.berkeley.edu>

Math. Dept., and E.E. & Comp. Sci. Dept. #1776

University of California

Berkeley CA 94720-1776

------------------------------

From: E. F. Toro <e.f.toro@numeritek.com>

Date: Wed, 26 Jan 2000 21:50:21 +0000

**Subject: Numerical Software Released**

NUMERICA,

A Library of Source Codes for

Teaching, Research and Applications

NUMERICA is a new library of source computer programs for solving

numerically partial differential equations and other mathematical

problems.

All the NUMERICA sub-libraries are written and maintained by

specialists of world reputation in their fields and are based

on authoritative textbooks and other substantial publications.

NUMERICA is intended primarily for Research Students, Research

Supervisors, Academics and Research Scientists in Academe, Industry

Research Laboratories and Consultancy Organisations.

Benefits offered by NUMERICA include:

(a) Quick and cost-effective start of projects

(b) Sound documentation and support

(c) Complete control over development of projects

(d) Continuity, improvement and expansion of software

Sub-Libraries of NUMERICA

HYPER-LIN. A set of 20 source programs for solving model hyperbolic

conservations laws using a wide variety of modern shock-capturing

methods. Suitable for teaching and learning. Available now.

HYPER-EUL. A set of 20 source programs for solving the non-linear

time-dependent Euler equations in one, two and three-dimensional

Cartesian and non-Cartesian domains using modern high-resolution

shock-capturing methods of the Godunov and centred type.

Available now.

HYPER-WAT. A set of 20 source programs for solving the non-linear

time-dependent shallow water equations in one and two dimensional

domains, using a wide variety of modern shock-capturing methods of

the Godunov and centred type. Due in June 2000.

GRID-GEN. A set of source programs for the generation of structured and

unstructured meshes for two and three-dimensional domains. More details

soon to be released. In preparation.

Future Extensions of NUMERICA

NUMERICA will be maintained, regularly upgraded and extended to include

new sub-libraries written by other world experts, thus embracing a wider

range of problems, methods and potential applications.

NUMERICA is published and distributed by Numeritek Limited, UK.

Website http://www.numeritek.com. Email: numerica@numeritek.com

Distributed in Japan by SofTek Systems Inc.

------------------------------

From: Lynette Mitchell <mitchelll@crop.cri.nz>

Date: Fri, 14 Jan 2000 10:05:00 +1300

**Subject: Conference on Complex Systems**

COMPLEX SYSTEMS 2000

The Fifth International Conference on Complex Systems

Conference Announcement and Call for Papers

Date: 19-22 November 2000, 3-4 days

Place: Otago University, Dunedin, New Zealand

Theme: Applied Complexity - From Neural Nets to Agricultural Soils, and

all that lies in between.

For registration, paper submission and detailed information, please visit:

http://www.crop.cri.nz/complex2000=20

Important deadlines: Paper submissions by 31 May 2000

Aim: Much of complexity work to date has dealt with abstract modeling, wh=

ile people who most deal with real complex systems (ecology to economics)=

are virtually unaware of progress. The conference will bring together th=

e abstract with the realistic and show advances in complex system theory =

and modeling which have been applied to real world situations or hope to =

be heading that way.

Background: "Applied Complexity" is the fifth of a series of conferences =

on Complex Systems in Australasia and the first in New Zealand. The first=

conference (From Biology to Computation) was held at the Australian Nati=

onal University, Canberra, in 1992. Subsequent conferences were held at t=

he University of Central Queensland, Rockhampton, 1994 (Mechanisms of Ada=

ptation); at Charles Sturt University, Albury, 1996 (From Local Interacti=

ons to Global Phenomena); and at University of New South Wales, Sydney, 1=

998 (Complexity Between the Ecos - From Ecology to Economics). "Applied C=

omplexity" expands the international tradition of these conferences and e=

xpects a wide participation from around the world.

Audience, disciplinary interests: Complex systems cross boundaries betwee=

n disciplines, thus we expect to elicit interest in disciplines ranging a=

cross mathematics, computing, physics, chemistry, climatology, biology, p=

sychology, neural sciences, information sciences, social sciences, anthro=

pology, ethnobiology, economics, modeling, conservation, and management t=

o cite only a few at a broad level. However, to maintain a clear focus, p=

aper presented must deal explicitly with issues within those fields that =

suggest the extraction of broad rules which may be applicable across comp=

lex systems of a different nature.

This conference is for you if:

You work in real-life complex systems (e.g. agriculture, economy, psychol=

ogy, conservation, social studies, history) and wonder whether there coul=

d be more holistic approaches to scientifically comprehend them.

You have heard of chaos theory, complexity, catastrophe theory, artificia=

l life, artificial intelligence, self-organization, etc. and believe they=

are applicable to your problem but don't know the right people to establ=

ish a working relationship

You work with computer simulations of complex systems (e.g. genetic algor=

ithms, information science, fitness landscapes, ecological and agricultur=

al modeling, etc.) but wonder how this will ever be connected to real-lif=

e complex systems

Complex Systems 2000 brings these strands together in a meeting which enc=

ourages the initiation of important collaborative research, as well as up=

dating the most research advances in the field.

We look forward to seeing you in Dunedin!

Lynette Mitchell

Crop & Food Research

Ph: 64 3 489 0673

Fax: 64 3 489 0674

------------------------------

From: Andreas Wiegner <Andreas.Wiegner@FernUni-Hagen.de>

Date: Mon, 24 Jan 2000 14:13:02 +0100

**Subject: Workshop on Accurate Solution of Eigenvalue Problems**

III INTERNATIONAL WORKSHOP ON ACCURATE SOLUTION OF EIGENVALUE PROBLEMS

In cooperation with the Society for Industrial and Applied

Mathematics (SIAM) and the SIAM Activity Group on Linear Algebra

July 3-6, 2000

FernUniversit=E4t Hagen

Arcadeon Conference Center, Hagen, Germany

SECOND ANNOUNCEMENT AND CALL FOR PAPERS

Organizing Committee:

- Jesse Barlow, The Pennsylvania State University

- Ivan Slapnicar, University of Split

- Kresimir Veselic (manager), Fernuniversit=E4t Hagen

The purpose of this workshop is to bring together experts on accuracy

issues in the numerical solution of eigenvalue problems for four days

of research presentations and discussions. This is the third such

workshop. The first, titled "International Workshop on Accurate

Eigensolving and Applications", was held in Split, Croatia on July 11-

17, 1996, the second, "International Workshop on Accurate Solution of

Eigenvalue Problems, was held at the Pennsylvania State University on

July 20-23, 1998. There will be no parallel sessions; research

presentations will be 30 minutes to one hour each, with sufficient

time for discussions. Specially titled discussion/working groups and

a poster session will also be organized. Current informations are

found under

http://www.fernuni-hagen.de/MATHPHYS/veselic/2announcement.html

Tentative invited speakers:

Beresford Parlett, University of California at Berkeley;

James Demmel, University of California at Berkeley;

Ilse Ipsen, North Carolina State University;

Zlatko Drmac, University of Zagreb;

Axel Ruhe, Chalmers Institute of Technology, G=F6teborg;

Chris Beattie, Virginia Tech Blacksburg;

Nick Higham, University of Manchester;

S. K. Godunov, University of Novosibirsk;

Andrew Knyazev, University of Colorado at Denver;

Ming Gu, University of California, Los Angeles;

Hongyuan Zha, The Pennsylvania State University.

In addition to research contributions we will have a limited

number of tutorial talks.

We ask all tentative participants to SEND AN APPLICATION to the

managing organizer per e-mail or ordinary mail (the addresses are

below). The application should contain

- Name, affiliation

- Address (mailing, phone, email, ...)

- Title and abstract of their possible presentation - if any.

With invited speakers the application will merely be interpreted as

their FINAL AGREEMENT TO PARTICIPATE AND TALK. Other contributions

will be subject to an internal refereeing process. The qualification

will be judged by (i) its research ranking, (ii) its fitting in the

field of the Workshop. Note that we also welcome NON_SPEAKING

PARTICIPANTS as we are planning special time for discussion groups.

Should the quantity of highly qualified contributions be larger than

the disposable schedule, we will organize a POSTER SESSION to cover

the demands.

The DEADLINE for applications is the 30th of April 2000.

For further information contact the managing organizer

Prof. Kresimir Veselic

Fernuniversit=E4t Hagen

LG Mathematische Physik

P.O. Box 940

D-58084 Hagen

Germany

phone ++2331-9872721

email:iwasep3@Fernuni-Hagen.de

------------------------------

From: Marcin Paprzycki <marcin@orca.st.usm.edu>

Date: Mon, 24 Jan 2000 21:34:46 -0600 (CST)

**Subject: Conference on Distributed Systems**

SECOND ANNOUNCEMENT AND CALL FOR PAPERS

An International Conference on

DISTRIBUTED SYSTEMS:

OPTIMIZATION AND ECONOMIC ENVIRONMENTAL APPLICATIONS

Ekaterinburg, Russia

30 May - 2 June, 2000

ORGANIZED BY:

Ural Branch of Russian Academy of Sciences

Institute of Mathematics and Mechanics (Ekaterinburg)

Ural State Technical University (Ekaterinburg)

Steklov Mathematical Institute (Moscow)

SPONSORED BY: IFIP, IIASA, Finance Group "Severnaya Kazna"

CO-SPONSORED BY: WSES

SCOPE:

- Dynamics and control of systems with distributed parameters.

- Theory and methods of mathematical programming.

- Inverse problems for distributed and high-dimensional systems.

- Distributed systems in economic and financial areas.

- Distributed systems in geophysics and environment.

- Parallel computations and optimization.

INTERNATIONAL PROGRAM COMMITTEE:

G.I.Marchuk, Russia (Chair) J. Korbickz, Poland

I. Lasiecka, USA (Co-Chair) A.B. Kurzhanskii, Russia

H. Akca, Turkey N. Mastorakis, Greece

V. Barbu, Romania B. Mordukhovich, USA

F.L. Chernousko, Russia L. Pandolfi, Italy

I.I. Eremin, Russia M. Paprzycki, USA

Yu.M. Ermoliev, Ukraine S. Saitoh, Japan

K.-H. Hoffmann, Germany F. Troltzsch, Germany

F. Kappel, Austria V.V. Vasin, Russia

NATIONAL ORGANIZING COMMITTEE:

I.I. Eremin (Chair) V.I. Maksimov (Co-Chair)

V.N. Frolov O.I. Nikonov

N.L. Grigorenko M.S. Nikolskii

G.F. Kornilova V.D. Skarin

A.V. Kryazhimskii (Co-Chair) B.V. Digas (Secretariat)

MORE DETAILED INFORMATION:

DSO'2000 Organizing Committee

Institute of Mathematics and Mechanics

Ural Branch, Russian Academy of Sciences

S.Kovalevskoi Str., 16

620219 Ekaterinburg

Russia

Phone: +7 3432 493229

E-mail: digas@imm.uran.ru

Fax: +7 3432 742581

http://orca.st.usm.edu/marcin/mp/cfp/DSOEEA/cfp.html

------------------------------

From: Thom Mulders <mulders@inf.ethz.ch>

Date: Tue, 25 Jan 2000 11:19:44 +0100

**Subject: Rhine Workshop on Computer Algebra**

RWCA'00

Seventh Rhine Workshop on Computer Algebra

March 22 - March 24, 2000

Bregenz, Austria

Purposes

This is the seventh edition of a workshop initiated in Strasbourg in 1988

and held every second year. To avoid competition with well-established

conferences in the field, the workshop is kept as informal as possible.

Its two main purposes are to offer an opportunity to young researchers

and newcomers to present their work and to be a regional forum for

researchers in the field. Despite this latter goal, the workshop is

open worldwide to attendance.

Speakers in Preliminary Program

-------------------

Andre Weilert

E. Herrmann, A. Petho, H.G. Zimmer

Frederic Chyzak, Peter Paule, Otmar Scherzer,

Armin Schoisswohl, Burkhard Zimmermann

A.G. Grozin

E.S. Cheb-Terrab, T. Kolokolnikov

Delphine Boucher

S.A. Abramov

Claude-Pierre Jeannerod

Akmal A. Vakhidov

Stefan Klein, Andres Kecskemethy

Thomas Decker, Werner Krandick

Hans J. Stetter

Peter Draexler

W.A. de Graaf

Thom Mulders, Arne Storjohann

Arne Storjohann, Gilles Villard

Joern Mueller-Quade, Rainer Steinwandt

Juergen Gerhard

Patrik Haegglund

Isolde Mazzucco

Arthur Chtcherba, Deepak Kapur

H. Michael Moeller

All details about accommodation and registration can be found

on the WWW at http://www.inf.ethz.ch/rwca00/.

For more information, please contact the workshop chair.

Organization

Workshop Chair: Program Committee Chair:

Thom Mulders Gaston Gonnet

Inst. of Scientific Computing Inst. of Scientific Computing

ETH-Zentrum ETH-Zentrum

CH-8092 Zurich CH-8092 Zurich

Tel: +41-1-6327473 Tel: +41-1-6327470

Fax: +41-1-6321374 Fax: +41-1-6321374

mulders@inf.ethz.ch gonnet@inf.ethz.ch

------------------------------

From: Fred Hickernell <fred@taylor.math.hkbu.edu.hk>

Date: Wed, 26 Jan 2000 09:33:29 +0800

**Subject: Conference on Monte Carlo and Quasi-Monte Carlo Methods**

FOURTH INTERNATIONAL CONFERENCE ON

MONTE CARLO AND QUASI-MONTE CARLO METHODS IN SCIENTIFIC COMPUTING

Hong Kong Baptist University

November 27 - December 1, 2000

PURPOSE AND THEMES

Monte Carlo methods and their deterministic variant, quasi-Monte Carlo

methods, are used to solve a variety of complex problems. Research in

Monte Carlo and quasi-Monte Carlo methods spans across many disciplines and

focuses on a number of topics, including, but not limited to, the

following:

generation of random numbers

low discrepancy sequences

space-filling experimental designs

integration

integral equations

approximation

simulation

optimization

variance reduction

computational complexity

implementation in parallel architectures

Markov chain Monte Carlo

statistical inference

financial risk management

valuation of financial derivatives

statistical physics

particle transport

design of computer experiments

image rendering

This conference provides a joint forum for specialists in the theory and

application of Monte Carlo and quasi-Monte Carlo methods to present their

results and exchange views. MCQMC 2000 is the fourth in a series of

international meetings. The previous conferences were held in Las Vegas

(1994), Salzburg (1996), and Claremont, California (1998).

PLENARY SPEAKERS

S=F8ren Asmussen, Lund University

Marco Avellaneda, New York University

Kai-Tai Fang, Hong Kong Baptist University

Peter W. Glynn, Stanford University

Christian L=E9cot, Universit=E9 de Savoie

Xiao-Li Meng, University of Chicago

Harald Niederreiter, Austrian Academy of Sciences

Erich Novak, University Erlangen-N=FCrnberg

Ian H. Sloan, University of New South Wales

Shu Tezuka, IBM Tokyo

Jian-Sheng Wang, National University of Singapore

IMPORTANT DEADLINES

Submission of proposals for special sessions April 30, 2000

Submission of abstracts for contributed presentations August 31, 2000

Early registration September 30, 2000

Submission of manuscripts for proceedings March 31, 2001

CONTACT INFORMATION

For more information, please see our web page or mail, fax or email the

organizers:

MCQMC 2000

c/o Statistics Research and Consultancy Centre,

Hong Kong Baptist University

Kowloon Tong, Hong Kong, China.

Tel: (852) 2339-7015

Fax: (852) 2336-1505

Email: mcqmc2000@www.mcqmc.org

URL: http://www.mcqmc.org/MCQMC2000.html

------------------------------

From: Carol Weintraub <carol@wisdom.weizmann.ac.il>

Date: Wed, 26 Jan 2000 09:57:02 +0200 (IST)

**Subject: Workshop on Multiscale Computational Methods in Chemistry**

Eilat Workshops on

MULTISCALE COMPUTATIONAL METHODS IN CHEMISTRY

April 5-11, 2000

* Interdisciplinary forum of computational mathematicians, physicists

and chemists, to study basic computational obstacles in chemistry

and advanced multiscale approaches for treating them.

* Review lectures for non-specialists and extended tutorials.

* Two adjacent workshops and social activity in between:

(1) Expert Workshop on Multiscale Computation in Chemistry

and Biology: April 5-7 (possibly sponsored by NATO).

(2) Excursion in the Eilat area: April 8.

(3) Research Workshop of the Israeli Science Foundation on

Multiscale Computational Methods in Chemistry: April 9-11.

* Scientific background, general information, current participant

list and registration forms, see:

http://www.wisdom.weizmann.ac.il/~achi/conf00/index.html

Scientific Committee:

- Jerry Bernholc, No. Carolina State University, USA

- Kurt Binder, Univ. Mainz, Germany

- Achi Brandt, Weizmann Institute of Science, Israel

- David Ceperley, Univ. of Illinois, USA

- Tamar Schlick, New York University, USA

- Klaus Schulten, Univ. of Illinois, USA

- Moshe Shapiro, Weizmann Institute of Science, Israel

------------------------------

From: Heinz W. Engl <engl@indmath.uni-linz.ac.at>

Date: Wed, 26 Jan 2000 17:50:24 +0100

**Subject: Conference and Workshop on Inverse Problems**

SFB Conference on Inverse Problems

in conjunction with

TMR Workshop on Inverse Problems.

(26th June - 1st July, 2000) These two distinct events have been

organised together to provide an excellent overview of the field of

Inverse Problems. The TMR workshop will take place in the first 2

days (26th- 27th June) , and will provide introductory lectures in

this field, thus The TMR workshop (26th- 27th June, 2000) The TMR

workshop will provide introductory courses on the following topics:

* Fundamental Inverse problem Theory & applications. * Ill-posed

problems. * Regularisation Methods. * Optimal control. * Shape

optimisation.

The workshop is part of the T(raining) and M(obility) of

R(esearchers) EU-project on Differential Equations in Industry and

Commerce. The SFB conference (28th June - 1st July, 2000). The SFB

conference will consist of advanced talks from internationally

renowned speakers. These provide a natural continuation to the

introductory courses given in the TMR Workshop. There will also be

contributed talks in research carried out in applicati

The conference is part of the special research initiative

(SpezialForschungsBereich) F013: Numerical and symbolic scientific

computation of the University of Linz. Location. The combined event

will take place in the St. Wolfgang Federal Institute for Adult

Education (BIFEB-Bundesinstitut fur Erwachsenenbildung).

The combined registration form for the TMR-SFB events can be found

on the web at:

imagewww.indmath.uni-linz.ac.at/sfb2000

For more information on the TMR workshop: Andrea Schatz Email:

schatz@indmath.uni-linz.ac.at

Organising committee for SFB F013 Heinz Engl

(engl@indmath.uni-linz.ac.at) Otmar Scherzer

(scherzer@indmath.uni-linz.ac.at), Luca Rondi

(rondi@indmath.uni-linz.ac.at) Thorsten Hohage

(hohage@indmath.uni-linz.ac.at).

Address: Industrial Mathematics Institute, University of Linz,

Altenbergerstrasse, 69, A-4040 Linz, Austria.

------------------------------

From: Karsten Decker <decker@isone.cscs.ch>

Date: Wed, 26 Jan 2000 18:49:31 +0100

**Subject: SPEEDUP Workshop**

SECOND ANNOUNCEMENT

27th SPEEDUP Workshop

Scientific Data Management and Understanding in Computational Science

Hotel Cadro Panoramica

Cadro-Lugano

Switzerland

March 16 - 17, 2000

Summary

Integrated solutions to computational science problems often require not

only large processing power, but in general also efficient methods and

techniques to store, manage, retrieve, analyze and discover the

knowledge contained in the often huge amounts of data generated in

experiments and computer-based modeling and simulation processes.

This workshop will demonstrate established approaches with examples of

scientific and industrial relevance, but also raise the question whether

these approaches will be sufficient in the future to cope with the

quickly growing complexity of data. Will there be completely new

methods emerging? What can we learn from the experiences gained with

very large data-bases in business computing?

The 27th SPEEDUP Workshop is intended to bring together members of

academic institutions, private enterprises and government who are

interested to obtain an overview of the state-of-the-art in scientific

data processing and to learn about new methods in management of, and

knowledge discovery in, very large amounts of scientific data generated in

computational science modeling and simulation processes.

Topics

Topics will include, but will not be limited to the discussion of trends in

Data management and repository organization

Data retrieval techniques

Statistical data analysis

Scientific visualization

Agent technologies for intelligent post-processing

Data warehouses

Data mining

Confirmed speakers

The list of confirmed speakers includes

Ron Appel, Swiss Institute for Bioinformatics, Switzerland

Peter Baumann, Active Knowledge GmbH Munich, Germany

Rita Casadio, Biocomputing Group - CIRB, University of Bologna, Italy

Mihai Datcu, German Aerospace Center DLR, Germany

Mikael Jern, Linkoping University, Sweden

Victor Jongeneel, Swiss Institute for Bioinformatics, Switzerland

Epaminondas Kapetanios, ETH Zurich, Switzerland

Ulrich Lang, RUS, University of Stuttgart, Germany

John Maddocks, EPF Lausanne, Switzerland

Silvio Merazzi, SMR SA, Switzerland

General information and registration

The latest information on the program can be found at URL

http://www.speedup.ch/Workshops/Workshop27Ann.html

On-line registration is available at URL

http://pobox.cscs.ch:8080/Workshops/Workshop27Reg.html

Since the number of participants is limited, we urge you to register

promptly to ensure that a space is reserved in your name. In any case,

please register until March 10, 2000 at the latest.

Further information on the SPEEDUP Society can be obtained from URL

http://www.speedup.ch/

Program committee

Franco Accordino

Karsten M. Decker

Jean M. Favre

Swiss Center for Scientific Computing (CSCS)

CH-6928 Manno

Tel: +41 (91) 610 8267

Fax: +41 (91) 610 8209

Email: speedup@cscs.ch

------------------------------

From: Rich Lehoucq <rblehou@sandia.gov>

Date: Tue, 25 Jan 2000 16:57:25 -0700

**Subject: John von Neumann Fellowship at Sandia Laboratories**

John von Neumann Research Fellowship in Computational Science

Sandia National Laboratories

The Computational Sciences, Computer Sciences and Mathematics

Center at Sandia National Laboratories invites outstanding

candidates to apply for the 2000 John von Neumann Research

Fellowship in Computational Science. The Fellowship is supported

by the Mathematical, Information, and Computational Sciences Division

at the U.S. Department of Energy. Von Neumann Fellowships at Sandia

provide an exceptional opportunity for innovative research in

scientific computing on advanced architectures. Candidates must

have recently earned a Ph.D. degree or the equivalent and have

a strong interest in advanced computing research.

Sandia maintains strong research programs in a variety of areas,

including analytical and computational mathematics, discrete

mathematics and algorithms, computational physics and engineering,

and advanced systems software and tools. Sandia has a unique parallel

computing environment which includes the 4500-node Intel Teraflops

machine, a 192-node SGI Origin 2000, a 168-node DEC 8400 cluster,

a 800 node DEC workstation cluster.

Applicants from a broad range of disciplines will be considered.

Preference will be given to those in the fields of numerical

methods, computational science, linear and nonlinear solvers,

optimization, parallel algorithm development and the predictability

of complex phenomena.

The Fellowship appointment is for a period of one year with a likely

renewal for a second year. It includes a highly competitive salary,

moving expenses and a generous professional travel allowance.

Applicants should send a resume, a statement of research goals, and

three letters of recommendation to: David Womble, Dept. 9222, Sandia

National Laboratories, Albuquerque, NM 87185-1110. All applications

received before March 10, 2000, will get full consideration, and

the position will remain open until filled.

For further information contact David Womble at 505-845-7471 or by

e-mail at dewombl@cs.sandia.gov.

Sandia National Labs is a U.S. Department of Energy multiprogram

laboratory, operated by Sandia Corporation, a wholly owned subsidiary

Lockheed Martin Corporation, with locations in Albuquerque, NM and

Livermore, CA.

Equal Opportunity Employer. Drug-free workplace. U.S. Citizenship is

normally required.

------------------------------

From: Ali Sayed <sayed@icsl.ucla.edu>

Date: Thu, 27 Jan 2000 10:02:04 -0800

**Subject: Faculty Positions at UCLA**

Faculty Positions in Signal Processing

Electrical Engineering

University of California

Los Angeles

The Electrical Engineering Department invites applications

from highly qualified persons for tenure-track faculty

positions in the School of Engineering and Applied Science

at the Assistant Professor level.

The department is particularly interested in candidates with

experience in Speech, Image and Biomedical Signal Processing.

Candidates with a Ph.D. in Electrical Engineeringand an

excellent research and teaching record are encouraged to apply.

Applications including a curriculum vitae, names of at least

3 referees, teaching and research statements (no longer than 1

page each), and three selected reprints should be sent, by

March 1st 2000 to:

Professor Tatsuo Itoh

Electrical Engineering Department

School of Engineering and Applied Science

66-147A Engr IV

University of California, Los Angeles

Los Angeles, CA 90095

FACULTY POSITION IN SYSTEMS AND CONTROL

UCLA ELECTRICAL ENGINEERING DEPARTMENT.

The Electrical Engineering Department invites applications for

a faculty position in the area of systems and control. Applicants

at all levels will be considered. Candidates should have a PhD

and an outstanding research and teaching record in this area.

The department is particularly interested in persons whose research

involves interaction between systems and control and

other areas of Electrical Engineering.

Applications including a curriculum vitae, names of at least

3 referees, a 2-page statement of research and teaching interests,

and 3 selected reprints should be sent, by March 15th, 2000 to:

Professor Tatsuo Itoh

Electrical Engineering Department

School of Engineering and Applied Science

66-147A Engr IV

University of California, Los Angeles

Los Angeles, CA 90095

Applications will be processed as they are received.

UCLA is an Equal Opportunity/Affirmative Action Employer.

------------------------------

From: Frank Wuebbeling <wuebbel@math.uni-muenster.de>

Date: Mon, 24 Jan 2000 15:34:08 +0100 (MET)

**Subject: Faculty Position at the University of Muenster, Germany**

The Faculty of Mathematics and Computer Science of the

University of Muenster, Germany

invites applications for a professorship (C4) in

"Applied Mathematics, in particular Numerical Mathematics" (succession

Prof. Colin W. Cryer).

Applicants are expected to teach graduate and undergraduate level courses

and do research in the full range of Numerical Mathematics.

Deadline for applications is March 31, 2000. Information is

available via

http://www.uni-muenster.de/Dezernat2/Stellen/st_0290.htm

Frank Wuebbeling

Institut fuer Numerische und Instrumentelle Mathematik der Universit=E4t =

M=FCnster

FON (+49) 251 - 83 33795, FAX (+49) 251 - 83 32714

Einsteinstr. 62, D-48149 Muenster, Germany

------------------------------

From: Rosie Renaut <renaut@asu.edu>

Date: Tue, 25 Jan 2000 09:59:12 -0700

**Subject: Visiting Faculty Position at Arizona State University**

The Department of Mathematics at Arizona State University invites

applications for visiting positions at the Assistant Professor

level commencing Fall 2000. For complete information about application

requirements and process see

http://math.la.asu.edu/~math/position/vs2.html

Application deadline is April 15, 2000, and weekly until the positions

are filled. AA/EOE.

------------------------------

From: Ewald Quak <Ewald.Quak@math.sintef.no>

Date: Tue, 25 Jan 2000 11:01:47 +0100

**Subject: Research Positions at the MINGLE Project**

Job advertisement

Several temporary positions, both doctoral and post-doctoral,

are now available within a new EU research training network

called MINGLE (Multiresolution in Geometric Modelling).

These positions will normally be between 6 months and two

years in duration and will provide an excellent opportunity

to gain research experience abroad.

The main objective of the project is to train young European

researchers, both in mathematics and computer science, in

various aspects of multiresolution in geometric modelling.

Relevant research topics include: hierarchical decomposition

of triangulations, generation of smooth surfaces from irregular

triangle meshes, thinning, decimation, compression of meshes,

remeshing, wavelets, application of multiresolution

representations to computer graphics, and data structures

and algorithms for storage and manipulation.

MINGLE will run from 2000 to 2003 and involves research teams

from the following nine partners:

SINTEF Applied Mathematics, Norway

Contact: Michael Floater <mif@math.sintef.no>

Tel Aviv University, Israel

Contact: Nira Dyn <niradyn@math.tau.ac.il>

Munich University of Technology, Germany

Contact: Armin Iske <iske@mathematik.tu-muenchen.de>

Technion, Israel

Contact: Craig Gotsman <gotsman@virtue3d.com>

Max Planck Institute, Saarbrucken, Germany

Contact: Hans-Peter Seidel <hpseidel@mpi-sb.mpg.de>

Joseph Fourier University, Grenoble, France

Contact: George-Pierre Bonneau <Georges-Pierre.Bonneau@imag.fr>

University of Cambridge, UK

Contact: Neil Dodgson <nad@cl.cam.ac.uk>

University of Genova, Italy

Contact: Leila De Floriani <deflo@disi.unige.it>

Systems in Motion AS, Norway

Contact: Paal-Robert Engnaes <preng@sim.no>

Further details are available on the webpage

http://www.oslo.sintef.no/mingle/

(especially concerning the eligibility rules). If you consider

making an application, please contact the partner or partners

you are interested in. Women are especially encouraged to apply.

For general enquiries about MINGLE, please contact the

coordinating partner via Michael Floater (mif@math.sintef.no) or

Ewald Quak (ewq@math.sintef.no).

------------------------------

From: Rob MacLeod <macleod@cvrti.utah.edu>

Date: Wed, 26 Jan 2000 21:30:41 -0700 (MST)

**Subject: Postdoctoral Position at University of Utah**

Postdoctoral Position at University of Utah

The Scientific Computing and Imaging Institute at the University of Utah

has an immediate opening for a post-doctoral fellow in the field of

geometric modeling and mesh generation. The successful candidate will work

within the newly founded NIH/NCRR Center for Bioelectric Field

Modeling, Simulation, and Visualization on projects with researchers in

computer science, bioengineering, cardiology, and neurosurgery. The

overall goal of the project is to create an integrated, flexible software

environment for all aspects of bioelectric field problems using

computational steering and visual dataflow architecture. The successful

candidate will carry out research in areas such as parametric surface

representations, efficient multiresolution descriptions of surface and

volume meshes, and robust methods for mesh creation, adaptation, and

manipulation.

The successful candidate should have a Ph.D. in a related field such as

computer science, mathematics, or physics. Applicants should have previous

programming experience in C/C++, be well versed in numerical methods and

high performance computing, and have advanced knowledge in geometric

modeling, mesh generation, and surface and volume representation

techniques. Previous experience with medical applications and medical

imaging are valuable assets.

For more information on the project, see http://www.sci.utah.edu/ncrr. The

position is open immediately and has secure and competitive funding for up

to three years. Send applications or inquiries to the address

Raelynn Potts

50 S Central Campus Drive

Room 3485

Salt Lake City UT 84112

801/585-5983

rpotts@cs.utah.edu

------------------------------

From: Peter Forsyth <paforsyt@elora.math.uwaterloo.ca>

Date: Thu, 27 Jan 2000 10:11:18 -0500 (EST)

**Subject: Postdoctoral Position at University of Waterloo**

The Computational Finance project at the University of Waterloo is funded

by the Natural Sciences and Engineering Research Council of Canada, the

Royal Bank of Canada, and Bell Canada University Labs. Project members

include faculty from Computer Science (Forsyth and Labahn), the Centre for

Advanced Studies in Finance (Boyle and Vetzal), and Statistics and

Actuarial Science (Tan).

The Computational Finance project invites applications for a post-doctoral

fellow. A primary responsibility of this position will be to carry out

research in the area of development and testing of algorithms utilizing

low discrepancy sequences in finance. A secondary responsibility is to

participate in the application of numerical PDE methods in option pricing.

This position is for one year initially, and renewable for a second year

if mutually agreeable.

The applicant should have a Ph.D. in a relevant discipline (e.g. Computer

Science, Statistics, Mathematics, or Physics) and have a strong interest

in computational techniques. Previous experience in developing numerical

applications in such languages as C++ would be an asset.

Further information about the research interests of members of the

Computational Finance Group can be found at

http://www.scicom.uwaterloo.ca/~paforsyt/compfin.html

Applications should include a curriculum vitae and the names, telephone

numbers, and e-mail addresses of three references. The application should

be directed to Amy Aldous, Centre for Advanced Studies in Finance,

University of Waterloo, Waterloo, Ontario, Canada N2L 3G1. The position

is expected to commence as soon as possible. Applications will be

considered as soon as they are received.

The University of Waterloo encourages applications from all qualified

individuals, including women, members of visible minorities, native

peoples, and persons with disabilities.

These appointments are subject to the availability of funds.

------------------------------

From: Norbert Heuer <heuer@iwd.uni-bremen.de>

Date: Tue, 25 Jan 2000 15:43:54 +0100 (MET)

**Subject: Student Position at University of Bremen**

Student Position in Applied Mathematics

The Institute for Scientific Computing at the University of Bremen is

offering a research position in Applied Mathematics.

Opportunity is given to attain a doctoral degree in Mathematics.

Aim of this project, funded by the German Research Foundation (DFG),

is the development of adaptive strategies for the solution of boundary

integral equations. We are seeking candidates with a strong background

in numerical analysis, preferably in finite element methods.

A master or diploma in Applied Mathematics or a related field is required.

The position can be filled immediately and is open for two years.

It is intended to apply for an extension of the grant for two more years.

The salary is regulated by the German BAT contract: 1/2 BAT IIa.

It depends on age and family status (a 25 year old unmarried person

receives about DEM 32,000 gross payment per annum).

Interested applicants should contact

Norbert Heuer

email: heuer@iwd.uni-bremen.de (preferred)

or

IWD

Universitaet Bremen

Postfach 33 04 40

28334 Bremen

Germany

------------------------------

From: Oleg Burdakov <olbur@mai.liu.se>

Date: Sun, 23 Jan 2000 18:37:27 +0100 (MET)

**Subject: Contents, Optimization Methods and Software**

Table of Contents

Optimization Methods and Software (OMS)

Volume 13, Number 1 (February, 2000)

P.S. Bradley and O.L. Mangasarian

Massive data discrimination via linear support vector machines

1-10

N. Krejic and J.M. Martinez

A globally convergent inexact-Newton method for solving reducible

nonlinear systems of equations

11-34

I. Charpentier and M. Chemires

Efficient adjoint derivatives: application to the atmospheric

model MESO-NH

35-63

W. Klein and A. Walther

Application of techniques of computational differentiation

to a cooling system

65-78

Forthcoming papers and complete table of contents for the journal OMS:

http://www.mai.liu.se/~olbur/OMS.contents

Instructions for authors, subscription information, free sample copies:

http://www.gbhap.com/Optimization_Methods_Software/

Latex style files:

http://www.mai.liu.se/~olbur/STYLES/

------------------------------

From: Thomas Hogan <hogan@math.ohio-state.edu>

Date: Mon, 24 Jan 2000 17:17:51 -0500 (EST)

**Subject: Contents, Journal of Approximation Theory**

Table of Contents: J. Approx. Theory, Volume 101, Number 2, December 1999

Leonid Golinskii

The Christoffel function for orthogonal polynomials on a circular arc

165--174

G. Godefroy and V. Indumathi

Proximinality in subspaces of $c_0$

175--181

F. Schipp and W. R. Wade

Zak transforms on binary fields

182--195

Thomas Bloom and Jerzy Szczepaski

On the zeros of polynomials of best approximation

196--211

Natalia Humphreys and Ranko Bojanic

Rate of convergence for the absolutely $(C,\alpha)$ summable Fourier

series of functions of bounded variation

212--220

Wolfgang Gehlen

On a conjecture concerning strong unicity constants

221--239

A. Kamaly, A. M. Stokolos, and W. Trebels

On the rate of almost everywhere convergence of certain classical

integral means, II

240--264

Dieter Gaier

The Faber operator and its boundedness

265--277

Manfred Reimer

Well conditioned spherical polynomial systems

278--288

L. Dalla and V. Drakopoulos

On the parameter identification problem in the plane and the polar

fractal interpolation functions

289--302

Alexei Zhedanov

Biorthogonal rational functions and the generalized eigenvalue problem

303--329

T. Kasuga and R. Sakai

Uniform or mean convergence of Hermite-Fej\'er interpolation of

higher order for Freud weights

330--358

Stefan Jansche

Weak type inequalities for best simultaneous approximation in

Banach spaces

359--403

Author index for Volume 101

404

------------------------------

End of NA Digest

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