### Today's Editor:

- Cleve Moler
- The MathWorks, Inc.
- moler@mathworks.com

- Delaunay Triangulation Solver Sought
- A Linear Algebra Problem?
- Experience with Mac-based Computer Labs
- Change of Address for Michele Benzi
- New Address for Georg Heinig
- Change of Address for Karel in 't Hout
- Two One day courses -- Matlab, Mathematica
- Help With Bio-Medical Computing Sought
- Korteweg-de Vries Software Available
- Transformations of Linear Second Order ODEs.
- New Book on Convex Analysis and Minimization Algorithms
- Templates for the Solution of Linear Systems
- Multiconference on Computer Simulation
- SIAM Conference on Applied Linear Algebra
- Research Fellowship at Sandia
- Position at SUNY Stony Brook
- Householder Fellowship at Oak Ridge
- Postdoctoral Position at North Carolina State
- Contents: SIAM Numerical Analysis

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

From: F. M. G. Deza <dezaf@ksepl.nl>

Date: 22 Oct 1993 11:56:49 +0100

**Subject: Delaunay Triangulation Solver Sought**

I am hoping to find a solver for the Delaunay triangulation of a set of

distinct arbitrarily distributed points in a plane. Any language okay,

FORTRAN preferred.

Would be grateful for any suggestions people might have.

dezaf@ksepl.nl

Fancois Deza

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

From: Bill Gear <cwg@research.nj.nec.com>

Date: Fri, 22 Oct 93 08:46:47 EDT

**Subject: A Linear Algebra Problem?**

Here is an example of a general classs of problems: this one is stated

in two dimensions:

Given a set of points P(i) in the plane which it is believed lie on a

collection of lines (number of lines unknown, but obviously

significantly less than half the number of points). Of course, there

are some errors in the given coordinate values of the points.

Problem: determine the lines. [The problem is not well specified,

and, at this stage, the specification could be partially dependent on

available algorithms. For example, one could ask for the minimum

number of lines subject to an error bound in a suitable norm. That

smells combinatorial.]

Bill Gear

President

NEC Research Inst. Inc.

4 Independence Way

Princeton, NJ 08540

Inet: cwg@research.nj.nec.com

UUCP: princeton!nec!cwg

PHONE: (609) 951-2500

FAX : (609) 951-2480

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

From: Jim Daniel <daniel@fireant.ma.utexas.edu>

Date: Fri, 22 Oct 93 10:45:13 -0500

**Subject: Experience with Mac-based Computer Labs**

Our Departmental computer gurus are attacking the University decision to

create more Mac labs for students (software might include Mathematica,

Systat, MATLAB, etc.) on the grounds that "it is well known that Mac labs

all over the country fail" because students intentionally or

unintentionally mess them up---with viruses, by changing Configuration

files, modifying defaults, etc (all the stuff that you can do on

user-friendly systems). It has been my uninformed impression that Mac labs

were generally quite successful. Can anybody provide any information on

this based on their own institution's experience? Is it necessary to have

Unix labs in order to be successful, however unfriendly they might be?

Jim Daniel

Actuarial Studies

Mathematics Department

University of Texas

Austin, TX 78712

daniel@math.utexas.edu

512/471-7168

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

From: Michele Benzi <benzi@latour.math.ncsu.edu>

Date: Fri, 22 Oct 93 18:16:43 EDT

**Subject: Change of Address for Michele Benzi**

I am moving from N.C. State University to take up a position

at the University of Bologna. Beginning November 1, 1993 my

address will be the following:

Michele Benzi

Dipartimento di Matematica

Universita' di Bologna

P.zza di P.ta San Donato, 5

40127 Bologna

Italy

E_mail address: benzi@dm.unibo.it

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

From: Georg Heinig <GEORG@math-1.sci.kuniv.edu.kw>

Date: 25 Oct 93 14:31:21 GMT3

**Subject: New Address for Georg Heinig**

My new address is:

Georg Heinig, Dept.of Mathematics

KUWAIT UNIVERSITY

P.O.Box 5969, Safat 13060, KUWAIT.

New e-mail:

georg@math-1.sci.kuniv.edu.kw

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

From: K. in 't Hout <hout@cwi.nl>

Date: Tue, 26 Oct 1993 14:32:59 +0100

**Subject: Change of Address for Karel in 't Hout**

My stay at the University of Auckland has ended and now I

am working at the CWI in Amsterdam. My current address is:

K. in 't Hout

Department of Numerical Mathematics

CWI

P.O. Box 94079

1090 GB Amsterdam

THE NETHERLANDS

Telephone: +31 20 5924102

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

From: E. Smith <SMITHE@RMCS.CRANFIELD.AC.UK>

Date: Thu, 28 Oct 93 09:25 +0100 (BST)

**Subject: Two One day courses -- Matlab, Mathematica**

There are still some places available on the following courses:

16 November 1993 MATLAB: a titorial introduction

17 November 1993 Mathematica: a tutorial introduction

For further details contact

Mrs. E. Smith

Applied Mathematics and Operational Research Group,

School of Defence Management,

Royal Military College of Science,

Shrivenham, Swindon, Wilts. SN6 8LA.

Tel: (0793) 785317

Fax: (0793) 782179

Email: smithe@uk.ac.cran.rmcs

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

From: Alan Miller <agmiller@ee.cuhk.hk>

Date: Thu, 28 Oct 93 09:37:07 -0700

**Subject: Help With Bio-Medical Computing Sought**

We are a small Bio-Medical Engineering Group here in the Department of

Electronics Engineering, Chinese University of Hong Kong.

We have one memeber of staff, soon to be two, one postdoc, four PhD

candidates and one Masters Candidate.

Since we are such a small group, and because people do not actually

know what we do (they still think we design wheelchairs or something),

we are lowest in the faculties priorities for computing resources,

software purchases and general support. One of our models of the

current and voltage distributions inside the thorax for an injected

current takes over a week to run on our DEC workstaiton!

We are engaged in somewhat unique work, well of the beaten track and

as such the normal available software code is not up to spec.

Recently the faculty got delivered a DEC MPP12000 super-computer and it

is now up an running, further to this, Sun may be donating a SPARC1000

to the lab,providing that we can show that we really need it, otherwise

we get a SPARC10 and the Dean's own department get to keep the sun

sparc1000, incidently its the Dean's decision who gets the SPARC1000.

At this present time we need to find suitable software for both the

MPP12000 and SPARC10/1000 to show that we can actually exploit their

capabilities. Therefore does anyone know or have suitable software

that could be ftp/ip and installed here?

I personally have to model the acoustical shock wave response of the

Human Thorax and model the resonance to detect disorder, this system is

non-linear, even chaotic at time, inhomogenous, and time VARIANT, as

well as different for different people, there are also no papers, no

books and no software, so I do not have time to sit and spend 2 years

writting everything I need.

We are especially interested in the following

1. General Bio-Medical Engineering Software.

2. Monte Carlo Modelling

3. CHAOS Dyanamics****************

4. Non-Linear system modelling*****

5. Acoustical propagation (inside human thorax!)

6. N-Degree of freedom resonance modelling software

7. Electrical Bio-Impedance.

8. EEG,ECG Anaysis software.

9. Mathematics Libraries/tools etc***

10. WAVELET ANALYSIS **********

11. Digital Signal Processing.

If someone has "inverse problem" software that could map EEG signals

onto a plane to show the electrical activity of the brain then we would

be very interested indeed.

Any help, advice or general comments would be most welcome.

Thanks,

Alan Miller

Bio-Medical Lab

Chinese University of Hong Kong.

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

From: William E. Schiesser <wes1@Lehigh.EDU>

Date: Thu, 28 Oct 1993 11:58:32 EDT

**Subject: Korteweg-de Vries Software Available**

A complete Fortran code for the method of lines (MOL) integration of the

Korteweg-de Vries PDE (KdVE) is available (on a DOS-formatted diskette).

This code demonstrates the solitons of the KdVE, and gives a comparion of

the MOL solution with the analytical solution for the one-soliton case. A

two-soliton case is also included which demonstrates the merging and emerging

of solitons. A paper pertaining to the KdVE analytical solution and the MOL

approximation is included with the code. Requests should be sent to:

W. E. Schiesser

Iacocca Hall, D307

Lehigh University

111 Research Drive

Bethlehem, PA 18015 USA

(215) 758-4264 (office)

(215) 758-5057 (fax)

wes1@lehigh.edu (Internet)

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

From: Xuanmin Wang <MEG1839@v2.qub.ac.uk>

Date: Mon, 25 Oct 93 12:30 GMT

**Subject: Transformations of Linear Second Order ODEs.**

I am writing this message to ask for help.

One of my research areas is about the 'direct' numerical methods for

initial value problems of second order ordinary differential equations in

which the first derivative is present. It is the first derivative that

presents difficulties to the construction of such method. One of the problems

for these 'direct' algorithms is if the coupled ODEs can be written into the

form of uncoupled ones which have the same solution as the original problem.

The IVPs of second order ODEs can be written as

[M]x"+[C]x'+[K]x=f(t) (1)

known: x(0) and x'(0)

where [M], [C] and [K] are n by n symmetric matrices and x, x' and x" are

vectors.

The technique assuming that the damping matrix [C] is proportional

to [M] and [K], i.e. [C]=a[M]+b[K], is commonly used in engineering

applications. Thus, a orthogonal transformation can be used to uncouple the

equations.

The simplified form of (1) is:

x"=-[C]x'-[K]x +f(t) (2)

known: x(0) and x'(0)

My question is: assuming that the [C] in (2) is an arbitrary symmetric

matrix, if we can find out the equivalent uncoupled equations with the

following procedure:

(a) To write the second order ODEs into the form of first order ones

(x") (-C -K) (x') (f)

( )= ( ) ( )+( ) (3)

(x') ( I 0) (x ) (0)

or y'=[B]y+F (4)

(b) The eigenvalues of the matrix [B] can be obtained with a similarity

transformation " [S]^(-1)[B][S] ", where " [S]^(-1) " denotes the inverse

matrix of [S]. Equation (4) is transformed to

z'=[S]^(-1)[B][S]z+[S]^(-1)F (5)

The initial values of z(0) and z'(0) can be obtained by

z(0)=[S]^(-1)y(0)

z'(0)=[S]^(-1)y'(0)

The eigenvalues of the matrix [B] are complex in general. The imaginary

part of a pair of conjugate complex eigenvalues is the frequency with damping

while the real part of the eigenvalues is the damping term. Obviously,

problem (5) and (2) have the same solution.

(c) The questions are:

(i): IF the problem (5) can be rewritten to the form of uncoupled second

order ODEs (6) by using these eigenvalues.

w"+[D]w'+[Q]w=g(t) (6)

known: w(0), w'(0)

where both [D] and [Q] are diagonal matrices? If (2) can not be rewritten to

(6), what conditions are required?

(ii): Provided that the original problem (2) can be rewritten as (6), if

solving the original problem (2) with a numerical method is equivalent to

solving the uncoupled problem (6)?

Thank you very much for your time in advance. I sincerely hope I can

obtain reply from those who had seen this idea.

MEG1839@V2.QUB.AC.UK

Xuanmin Wang

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

From: Jean-Baptiste Hiriart-Urruty <jbhu@cict.fr>

Date: Mon, 25 Oct 1993 14:14:35 +0100 (MET)

**Subject: New Book on Convex Analysis and Minimization Algorithms**

New book:

Authors: J-B.HIRIART-URRUTY,Universite Paul Sabatier Toulouse

and C.LEMARECHAL, I.N.R.I.A. Rocquencourt, France.

2 volumes: Vol.1 FUNDAMENTALS, 440p.

Vol.2 ADVANCED THEORY AND BUNDLE METHODS, 346p.

Editors: Springer-Verlag,Publication : October 1993.

Title : CONVEX ANALYSIS AND MINIMIZATION ALGORITHMS

Convex analysis can be considered as a refinement of standard calculus, with

equalities and approximations replaced by inequalities.As such, it can easily

be integrated into a graduate study curriculum.Minimization algorithms, more

specifically those adapted to non-differentiable functions, provide an

immediate application of convex analysis to various fields related to

optimization and operation research.These two topics, making up the title of

the book, reflect the two origins of authors, who belong respectively to the

academic world and that of applications. The approach of their book is very

comprehensive without being encyclopaedic : the emphasis is on introducing

readers in a gradual and digestible manner to the concepts of convex analysis,

their interlinking and their implications, with algorithms ideas worked in.

Theory is interspersed with applications and vice versa; illustrative numerical

results are given, and over 170 pictures illustrate and support geometric

intuition . Throughout the book, ample comments help the reader further to

master the concepts and methods, and to understand the motivations, the

difficulties, and the relative significance of results.

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

From: Jack Dongarra <dongarra@cs.utk.edu>

Date: Mon, 25 Oct 93 14:06:07 -0400

**Subject: Templates for the Solution of Linear Systems**

We have just completed a book on iterative methods.

The book is primarily aimed at computational scientists who are

not specialists in computational linear algebra and would like to

incorporate state-of-the-art computational methods for solving

large sparse non-symmetric systems of linear equations.

The title of the book is ``Templates for the Solution of Linear

Systems: Building Blocks for Iterative Methods'', is authored by

Richard Barrett, Mike Berry, Tony Chan, Jim Demmel, June Donato,

Jack Dongarra, Victor Eijkhout, Roldan Pozo, Chuck Romine and

Henk van der Vorst, is being published by SIAM, and will be available

in bound form in mid-November. SIAM has set the price for the

Templates book at List Price $18.00 / SIAM Member Price $14.40.

We are putting the royalties from the book into a SIAM fund

to help support students attend SIAM meetings.

The book contains:

o) Mathematical descriptions of the flow of the iterations.

o) Algorithms described in Fortran-77 and MATLAB.

o) Discussion of convergence and stopping criteria.

o) Suggestions for extending each method to more specific matrix types

(for example, banded systems).

o) Suggestions for tuning (for example, which preconditioners

are applicable and which are not).

o) Performance: when to use a method and why.

SIAM is trying an experiment with this book and has allowed the

postscript file containing the book to be distributed over the

internet. It is available from netlib.

To retrieve the postscript file you can use one of the following methods:

1) anonymous ftp to netlib2.cs.utk.edu

cd linalg

get templates.ps

quit

2) from any machine on the Internet type:

rcp anon@netlib2.cs.utk.edu:linalg/templates.ps templates.ps

3) send email to netlib@ornl.gov and in the message type:

send templates.ps from linalg

4) use Xnetlib and click "library", click "linalg", click

"linalg/templates.ps", click "download", click "Get Files Now".

(Xnetlib is an X-window interface to the netlib software

based on a client-server model. The software can

be found in netlib, ``send index from xnetlib'').

The algorithm descriptions in Fortran and MATLAB can be found in netlib

under the directory linalg.

Jack Dongarra

University of Tennessee at Knoxville

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

From: F. Cellier <CELLIER@cadmus.ece.arizona.edu>

Date: Thu, 21 Oct 1993 15:37:28 -0700 (MST)

**Subject: Multiconference on Computer Simulation**

ANNOUNCEMENT AND CALL FOR PAPERS

1994 INTERNATIONAL CONFERENCE ON QUALITATIVE INFORMATION,

FUZZY TECHNIQUES, AND NEURAL NETWORKS IN SIMULATION

June 1-3 1994, Barcelona, Spain

Part of the 1994 SCS European Multiconference on Computer Simulation

The 1994 International Conference on Qualitative Information, Fuzzy

Techniques, and Neural Networks in Simulation brings together research paper

presentations, panel sessions, tutorials, workshops, seminars, industrial

applications, and software demonstrations that make use of qualitative

information of some sort or other in models of dynamic systems for the purpose

of simulation.

Research papers are welcome in the following categories of presentation

sessions.

. Tutorials . Time-dependent Expert Systems

. Panel Discussions . Qualitative Data Bases

. Software and Tools for Simulation

. Theory . Associative Memory

. Common Sense Reasoning for Simulation

about Dynamical Processes . Fuzzy Information Models

. Inductive Reasoning . Fuzzification and Defuzzification

about Dynamical Processes . Treatment of Uncertainty

. Knowledge-based Reasoning in Dynamical Systems

about Dynamical Processes . Treatment of Incomplete Knowledge

. Naive Physics about Dynamical Systems

. Neural Networks . Assumptions and Belief Systems

for Dynamical Processes . Models of Human Reasoning Processes

. Fault Monitoring and Diagnosis

In recent years, more and more papers were published that combine several

of the known qualitative knowledge representation techniques in a combined

algorithm. For example, a number of papers were recently published on fuzzy

neural networks. We therefore believe that it makes sense to bring the experts

on and advocates of the various techniques together in one conference.

DEADLINES:

. November 30, 1993 Extended Abstracts or full paper drafts due.

. February 14, 1994 Notification of acceptance/rejection to authors.

. March 14, 1994 Camera Ready Copies due.

Please, send four copies of extended abstracts (from four to six pages

in typing excluding figures and tables) or drafts of full papers (a maximum of

twelve pages in typing) to:

Prof. Dr. Antoni Guasch

General Program Chairperson of ESM'94

Dept. ESAII, ETSEIB

Universitat Politecnica de Catalunya

Diagonal 647, 2 planta

08028 BARCELONA

Spain

Phone: +34(3)401-6544

FAX: +34(3)401-6600

EMail: Guasch@ESAII.UPC.ES

Please, add a cover letter stating your name, affiliation, mailing address,

telephone number, FAX number, and EMail address. Indicate clearly that your

paper is being submitted to ICQFN'94. Each manuscript will be reviewed by

at least two members of the International Program Committee of ICQFN'94.

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

From: John R. Gilbert <gilbert@parc.xerox.com>

Date: Mon, 25 Oct 1993 10:18:40 PDT

**Subject: SIAM Conference on Applied Linear Algebra**

FIFTH SIAM CONFERENCE ON APPLIED LINEAR ALGEBRA

Sponsored by the SIAM Activity Group on Linear Algebra

June 15-18, 1994

Snowbird Ski and Summer Resort

Snowbird, Utah

DATES TO REMEMBER

December 1, 1993: Deadline for submission of minisymposium proposal

December 13, 1993: Deadline for submission of reply card

March 7, 1994: Deadline for camera-ready papers for conference proceedings

March 21, 1994: Deadline for advance registration for contributed participants

June 15-18, 1994: SIAM Conference on Applied Linear Algebra

CALL FOR PAPERS

To get a complete copy of the call for papers for this conference,

either use anonymous ftp to machine ae.siam.org (IP number 192.108.225.1)

and retrieve file "pub/la-net/call94.text", or send e-mail with the body

"send call94.text from la-net" to netlib@research.att.com. Hard copy of

the call is being mailed to SIAM members, as usual.

This meeting will experiment with a new format for contributed papers,

in response to concerns about conflicts between parallel sessions.

The new format is described in the complete call for papers.

PLENARY SPEAKERS AND TOPICS

* Eigenvalue Computation

James Demmel, University of California, Berkeley

* Geometry and Eigenvalues

Persi Diaconis, Harvard University

* Matrix Theory

Israel Gohberg, Tel Aviv University, Israel

* Iterative Methods for Large Sparse Systems

Anne Greenbaum, Courant Institute, New York University

* Nonnegative Matrices: Can the Next Century Top This One?

Charles R. Johnson, College of William and Mary

* Parallel Matrix Computations

Robert S. Schreiber, RIACS-NASA Ames Research Center

* Linear Algebraic Duality for Discrete Optimization

Leslie E. Trotter, Cornell University

INVITED MINISYMPOSIA

* Numerical Methods for Structured Matrices

Angelika Bunse-Gerstner, University of Bremen, Germany

* Linear Algebra in Optimization

Thomas F. Coleman, Cornell University

* Direct Methods for Large Sparse Systems

Iain Duff, Rutherford Appleton Laboratories, U.K., and CERFACS, France

* Iterative Methods for Large Sparse Systems

Roland Freund, AT&T Bell Laboratories

* The Algebraic Riccati Equation and Applications

Peter Lancaster, University of Calgary, Canada

* Graph Theory and Linear Algebra

Alex Pothen, University of Waterloo, Canada

* Teaching of Linear Algebra

Gilbert Strang, Massachusetts Institute of Technology

CONTRIBUTED MINISYMPOSIA

Six minisymposia will be selected from contributed proposals to

complete the set of conference themes. Minisymposia will be two-hour

sessions, intended to provide a high-level survey of current research

in an important area of applied linear algebra. This conference will

have significantly fewer minisymposia than previous Applied Linear

Algebra meetings; most of the topics that would otherwise be minisymposia

will instead be discussed in the common-interest sessions (see below).

The complete call for papers contains instructions for proposing a

minisymposium.

CONTRIBUTED PAPERS

As an experiment, this meeting has been organized so that the

presentation of contributed papers will be a dialogue rather than

a monologue. Each paper may be presented in three forms: in a

proceedings volume, as a poster display, and as part of a 2-hour

"common interest" discussion session. We expect most of the

contributed papers to be presented in all three forms, though this

is not required. The complete call for papers contains details.

REGISTRATION

The conference program and registration information will be available

in early March 1994. To ensure receiving your copy, complete the reply

card attached to the complete call for papers and return it to SIAM by

either email or hard mail.

**Prospective participants must complete and return this card by

December 13, 1993.**

Hard copy of the call for papers and reply card is (as usual) being

mailed to SIAM members.

ORGANIZING COMMITTEE

Beresford N. Parlett (Chair), University of California, Berkeley

Harm Bart, Erasmus University, Rotterdam

Richard A. Brualdi, University of Wisconsin

John R. Gilbert, Xerox Palo Alto Research Center

Sven Hammarling, Numerical Algorithms Group

John G. Lewis, Boeing Computer Services

Paul Van Dooren, University of Illinois

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

From: Robert W. Leland <rwlelan@cs.sandia.gov>

Date: Fri, 22 Oct 93 14:58:19 MDT

**Subject: Research Fellowship at Sandia**

Applied Mathematical Sciences

Research Fellowship

Sandia National Laboratories,

Albuquerque, New Mexico

The Computational Sciences, Computer Sciences and Mathematics Center

at Sandia National Laboratories invites outstanding candidates to

apply for the 1994 Applied Mathematical Sciences (AMS) Research

Fellowship. The Fellowship is supported by the Officer of Scientific

Computing of the U.S. Department of Energy. AMS Fellowships at

Sandia provide an exceptional opportunity for innovative research

in scientific computing on advanced architectures. They are intended

to promote the transfer of technology from the laboratory research

environment to industry and academia through the advanced training

of new computational scientists. Candidates must be U.S. citizens,

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

strong interest in advanced computing research.

The Center maintains strong programs in a variety of areas, including

analytical and computational mathematics, discrete mathematics and

algorithms, computational physics and engineering, advanced

computational approaches for parallel computers, graphics, and

architectures and languages. Preference will be given to candidates

applying in the fields of numerical analysis, computational science

and parallel algorithm development. Candidates with knowledge of

an application area (e.g., semiconductor device modeling, CFD,

climate modeling) are especially encouraged to apply.

Sandia provides a unique parallel computing environment, including

a 1,872-processor Intel Paragon, a 1024-processor nCUBE 2, a

64-processor Intel IPSC, and two Cray supercomputers.

The fellowship appointment is for a period of one year and may be

renewed 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: Robert H. Banks, Division

7531-121, Sandia National Laboratories, P.O. Box 5800, Albuquerque,

NM 87185. The closing date for applications is January 31, 1994,

although applications will be considered until the fellowship is

awarded. The position will commence during 1994.

For further information contact Richard C. Allen, Jr., at (505)

845-7825 or by e-mail, rcallen@cs.sandia.gov.

Equal Opportunity Employer M/F/V/H U.S. Citizenship is Required

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

From: Brent Lindquist <lindquis@ams.sunysb.edu>

Date: Mon, 25 Oct 93 14:04:59 EDT

**Subject: Position at SUNY Stony Brook**

STATE UNIVERSITY of NEW YORK at STONY BROOK

Department of Applied Mathematics and Statistics

The department invites applications for one or more possible positions

at the assistant or associate professor level. The department is seeking

candidates with interests in the areas of computational applied

mathematics, industrial statistics, or industrial engineering/operations

research. Requirements include an earned doctorate in a relevant field,

and demonstrated potential for research excellence and leadership.

Research interests that overlap those of existing departmental areas

will be preferred.

The department also expects to have postdoctoral positions in computational

applied mathematics available for the 1994-95 academic year. Qualified

candidates should have computational experience in one or more areas of:

fluid dynamics, parallel computing, hyperbolic conservation laws, flows

in elastic and plastic media, and flows in porous media.

Applicants should send vita, descriptions of research interests, and

three recommendation letters to: James Glimm, Chair, Department of

Applied Mathematics and Statistics, SUNY at Stony Brook, Stony Brook,

NY 11794-3600.

SUNY at Stony Brook is an equal opportunity/affirmative action

employer and educator.

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

From: Jack Dongarra <dongarra@cs.utk.edu>

Date: Sun, 31 Oct 93 10:57:19 -0500

Oubject: Scalable High Performance Computing Conference

THE 1994 SCALABLE HIGH PERFORMANCE COMPUTING CONFERENCE

SHPCC94

DEADLINE FOR EXTENDED ABSTRACTS OF PAPERS: November 5, 1993

KNOXVILLE, TENNESSEE, U.S.A., MAY 23 - 25, 1994

SPONSORED BY: IEEE Computer Society

The 1994 Scalable High Performance Computing Conference (SHPCC94) is

a continuation of the highly successful Hypercube Concurrent Computers

and Applications (HCCA), and Distributed Memory Concurrent Computing (DMCC)

conference series. SHPCC takes place biennially, alternating with the

SIAM Conference on Parallel Processing for Scientific Computing.

INVITED SPEAKERS:

Guy Blelloch, CMU Phil Colella, UC Berkeley

David Culler, UC Berkeley Monica Lam, Stanford Univ

Marc Snir, IBM

SHPCC94 will provide a forum in which researchers in the field of high

performance computing from government, academia, and industry can

presents results and exchange ideas and information. SHPCC94 will cover

a broad range of topics relevant to the field of high performance

computing. These topics will include, but are not limited to, the following;

Architectures Fault Tolerance Neural Networks

Artificial Intelligence Image Processing Non-numerical Algorithms

C++ Large-scale Applications Operating Systems

Compilers Load Balancing Programming Environments

Concurrent Languages Linear Algebra Scalable Libraries

THE SHPCC94 program will include invited talks, contributed talks, posters, and

tutorials. SHPCC94 will take place at the Holiday Inn Convention Center in

Knoxville, Tennessee.

Instructions for Submitting Papers

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

Papers presented at the conference will be published in the Proceedings.

1. Submit 3 copies of an extended abstract of approximately 4 pages. Abstracts

should include a succinct statement of the problems that are considered

in the paper, the main results achieved, an explanation of the significance

of the work, and a comparison with past research. To ensure a high academic

standard, the abstracts of all contributed papers will be refereed.

DEADLINE FOR EXTENDED ABSTRACTS OF PAPERS: November 5, 1993

Authors will be notified of acceptance by January 14, 1994

DEADLINE FOR FINAL CAMERA-READY COPY OF COMPLETE PAPER: February 14, 1994

The final complete paper should not exceed 10 pages.

2. Each copy of the extended abstract should have a separate title page

indicating that the paper is being submitted to SHPCC94. The title page

should also give the title of the paper and the names and addresses of

the authors. The presenting author, and the author to whom notification

of acceptance should both be sent, should be clearly indicated on the title

page, together with their phone, fax, and email.

3. Extended abstracts should be sent to the Program Chair, David Walker.

For further information contact David Walker at walker@msr.epm.ornl.gov

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

From: Richard Sincovec <sincovec@sirius.EPM.ORNL.GOV>

Date: Thu, 28 Oct 93 08:54:29 -0400

**Subject: Householder Fellowship at Oak Ridge**

HOUSEHOLDER FELLOWSHIP IN SCIENTIFIC COMPUTING

OAK RIDGE NATIONAL LABORATORY

The Mathematical Sciences Section of Oak Ridge National Laboratory

invites outstanding candidates to apply for the 1994 Alston

S. Householder Fellowship in Scientific Computing.

Alston S. Householder was the organizer and founding Director of the

Mathematics Division (precursor of the current Mathematical Sciences

Section) at Oak Ridge National Laboratory (ORNL). In recognition of

the seminal research contributions of Dr. Householder to the fields of

numerical analysis and scientific computing, a distinguished

postdoctoral fellowship program has been established at ORNL and named

in his honor. The Householder Fellowship is supported by the Office

of Scientific Computing of the U.S. Department of Energy.

The purposes of the Householder Fellowship are to promote innovative

research in scientific computing on advanced computer architectures

and to facilitate technology transfer from the laboratory research

environment to industry and academia through advanced training of new

computational scientists. The Householder Fellowship is a one year

appointment that is renewable for a second year. Benefits of the

Fellowship include a competitive salary, fringe benefits, travel

opportunities, access to state-of-the-art computational facilities

(including both parallel architectures and high-performance personal

workstations), and collaborative research opportunities in a very

active research program in advanced scientific computing. Competition

for the appointment is open to U.S. citizens and permanent residents.

Applicants should have completed a doctoral degree in computer

science, mathematics, or statistics within three years prior to the

appointment and have a strong background and research interest in

large-scale scientific computing.

ORNL's Mathematical Sciences Section has research programs in

computational techniques and tools for solving grand challenge

problems, heterogeneous distributed computing, algorithms and software

for advanced computer architectures, performance evaluation of

parallel computers and programs, mathematical modeling of

environmental problems and their solution on parallel computers and

computational statistics and biostatistics. The Householder Fellow is

expected to participate in existing projects consistent with the

research interests of the selected Fellow.

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

three letters of recommendation to Kyle Johnson, PhD Employment, Oak

Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6216,

marked ATTN: Householder Fellowship. The deadline for applying is

January 14, 1994. Finalists will be invited to visit ORNL in February

1994, and the selection committee's decision on the winning candidate

will be announced in March 1994. The fellowship will commence in

1994.

For further information, contact Richard F. Sincovec by phone at

615-574-3125 or by electronic mail at sincovecrf@ornl.gov.

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

From: Kazufumi Ito <kito@crsc1.math.ncsu.edu>

Date: Fri, 29 Oct 1993 13:19:15 -0400

**Subject: Postdoctoral Position at North Carolina State**

The Department of Mathematics and the Center for Research in Scientific

Computation at North Carolina State University expect to make several

post-doctoral appointments for the following positions (the availability of

positions is contingent upon fundings), starting July 1, 1994.

1. Two year Visiting Assistant Professorships in the department.

The department is interested in applicants who work in research areas

of ordinary differential equation, algebra, symbolic computation and analysis.

2. The appointments in the Center will be in the area of applied mathematics

and scientific computation. The research interests of the Center include

mathematical modeling, analysis and control of partial differential equations,

numerical optimization, computational fluids and flow control and

high-performance computation and biomathematics. The successful applicants

will be involved in research programs between the Center and other research

groups at NCSU which offer a unique opportunity for post-doctoral research on

mathematical projects arising in industrial/governmental laboratories.

Applicants should send a vita and brief description of research interests and

have three letters of recommendation sent to Professor K. Ito, Department

of Mathematics, Box 8205, North Carolina State University, Raleigh, NC

27695-8205. Applications will be considered at any time after January 15,

1994, as funding becomes available.

North Carolina State University is an equal opportunity and affirmative action

employer. In its commitment to diversity and equity, North Carolina State

University seeks applications from women, minorities, and the disabled.

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

From: SIAM <tate@siam.org>

Date: Mon, 25 Oct 93 11:43:29 EST

**Subject: Contents: SIAM Numerical Analysis**

Table of Contents

SIAM J. Numer. Anal.

Vol. 31, No. 1, February 1994

The Convergence Rate of Godunov Type Schemes

Haim Nessyahu, Eitan Tadmor, and Tamir Tassa

On Godunov-Type Schemes for Lagrangian Gas Dynamics

C.D. Munz

On the Accuracy of Fractional Step Methods for Conservation Laws in Two

Dimensions

Zhen-Huan Teng

Radiation Boundary Conditions for Dispersive Waves

Robert L. Higdon

On Certain Hybrid Iterative Methods for Solving Boundary Value Problems

Vladimir Kozlov, Vladimir Maz'ya, Leonid Rozin

Numerical Analysis of a Nonconvex Variational Problem Related to

Solid-Solid Phase Transitions

Pierre-Alain Gremaud

Approximated Convex Envelope of a Function

Bernard Brighi and Michel Chipot

A Posteriori Error Estimation with Finite Element Semi- and Fully

Discrete Methods for Nonlinear Parabolic Equations in One Space

Dimension

Peter K. Moore

Semidiscretization in Time of Nonlinear Parabolic Equations with

Blowup of the Solution

Marie-Noelle Le Roux

A Tetrahedral Mixed Finite Element Method for the Stationary

Semiconductor Continuity Equations

J.J.H. Miller and S. Wang

SOR-Secant Methods

Jose Mario Martinez

Krylov Subspace Methods for Solving Large Lyapunov Equations

Imad M. Jaimoukha and Ebrahim M. Kasenally

Efficient Numerical Validation of Solutions of Nonlinear Systems

G. Alefeld, A. Gienger, and F. Potra

Unitary Integrators and Applications to Continuous Orthonormalization Techniques

Luca Dieci, Robert D. Russell, and Erik S. Van Vleck

A Multiscale Algorithm for Image Segmentation by Variational Method

G. Koepfler, C. Lopez, and J.M. Morel

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

End of NA Digest

**************************

-------