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

- Schwarz-Christoffel Toolbox for Matlab
- Looking for SMAC Navier Stokes Codes
- Matrix Spectrum Problem
- Prolate Spheroidal Functions
- MATLAB Primer, 4th Edition
- Parallel Processing PC Boards?
- New Report Series from ANU
- Date Change for Copper Mountain Multigrid Conference
- Numerical Methods Conference in Bulgaria
- IMACS Symposium on Iterative Methods
- Course on Parallel CFD in Stuttgart
- EURO-PVM Call for Papers
- Post Doc at Surrey, UK
- Visitors and Post Docs, Univ. of Queensland
- Contents, SIAM Scientific Computing
- Contents, Control, Signals and Systems
- Contents, Linear Algebra and its Applications
- Contents, Journal of Approximation Theory

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

From: Toby Driscoll <driscoll@cam.cornell.edu>

Date: Mon, 18 Jul 1994 06:01:34 -0400

**Subject: Schwarz-Christoffel Toolbox for Matlab**

Update of the Schwarz-Christoffel Toolbox for Matlab

I've recently completed some significant additions to the

Schwarz-Christoffel Toolbox for Matlab.

The Schwarz-Christoffel Toolbox for Matlab 4 is a collection of

M-files for the interactive computation and visualization of

Schwarz-Christoffel conformal maps. The Schwarz-Christoffel

transformation is a formula for a conformal map from the upper

half-plane to the interior of a polygon, which may have slits

or vertices at infinity. The transformation can also be modified to

produce maps from the unit disk, an infinite strip, or a rectangle,

or from the disk to the exterior of the target polygon.

Major features of the toolbox include:

Graphical input of polygons

Solution of the parameter problem for half-plane, disk, strip,

rectangle, and exterior maps

Computation of forward and inverse maps

Adaptive plotting of images of orthogonal grids for

visualization

Command-line and graphical user interfaces

Online and Postscript documentation

The toolbox requires Matlab 4.1 or later, except under MS-Windows,

where version 4.0 is sufficient. Little Matlab expertise is required.

Version 1.2 has several improvements over version 1.0, most notably

the ability to work with maps from a strip or a rectangle. This

capability is useful when dealing with elongated polygons. There are

also improvements in speed and in the graphical interface, including

the drawing routine.

The Schwarz-Christoffel Toolbox can be obtained by anonymous ftp to

ftp.cs.cornell.edu, in the directory pub/driscoll/SC-Toolbox, or at

the MathWorks ftp site, ftp.mathworks.com, in the directory

pub/contrib/misc/sct-12. Version 1.2 of the toolbox is available in

the shar file sct-12.sh, and the Postscript documentation is in the

file sct-guide.ps.

Toby Driscoll

Center for Applied Mathematics

Cornell University

Ithaca, NY 14853

Phone: (607) 255-8272

email: driscoll@na-net.ornl.gov

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

From: Barak Galanti <aermwbg@ae560.technion.ac.il>

Date: Tue, 19 Jul 1994 01:47:49 +0200

**Subject: Looking for SMAC Navier Stokes Codes**

Dear NA-Netters,

I am looking for codes implementing the SMAC (Simplified

Marker-and-Cell) for incompressible Navier Stokes equation in any

geometry and boundary conditions. Source codes in Fortran or

C are mostly convenient, but any other pointer or reference is also

appreciated.

Thanks in advance,

Barak Galanti

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

From: Stuart Doole <Stuart.Doole@bristol.ac.uk>

Date: Wed, 20 Jul 1994 20:07:27 +0000 (BST)

**Subject: Matrix Spectrum Problem**

Eigenvalues/ Matrix Spectrum problem

My colleague and I have been looking at a wave propagation problem

and currently are faced with the following type of matrix:

[ ]

[ 0 I ]

[ ]

[ -C -B ]

[ ]

where

I is the identity matrix

C is a diagonal matrix with positive entries

B is a symmetric matrix

How much can be said about the spectrum/eigenvalues of the above

matrix if no other information is known. (The general form of

the entries of C and B are known but the stated properties

seem to be the only apparent ones).

General enquiries amongst friends have

either drawn a blank or the response

that nothing definite can be said.

Alternatively, one might ask about the system

A'' + B*A' + C*A =0

where A is a vector and wonder about the stability theory.

Any useful references or ideas would be warmly appreciated.

Stuart Doole

Dept of Engineering Maths

Bristol University

U.K.

email: stuart.doole@bristol.ac.uk

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

From: Ira Hammerman <ira@is.elta.co.il>

Date: Thu, 21 Jul 94 11:13:34 +0300

**Subject: Prolate Spheroidal Functions**

Is there code available for dealing with Prolate Spheroidal Functions?

Thank you,

Ira Hammerman <ira@is.elta.co.il>

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

From: Kermit Sigmon <sigmon@math.ufl.edu>

Date: Thu, 21 Jul 94 10:14:46 EDT

**Subject: MATLAB Primer, 4th Edition**

The Fourth Edition of the MATLAB Primer will be available

in mid-August 1994 from CRC Press.

Features of the new edition include:

New compact, reader-friendly, bound format.

Features of Version 4.2 of MATLAB blended into the text.

Substantial new section on the Symbolic Math Toolbox.

Extensive general revision and reformatting.

A fine-grained Table of Contents and detailed Index.

Same character and purpose of of the earlier editions:

(To help students and others begin to use MATLAB)

Ordering Information:

Mail Orders (both national and international):

CRC Press, Inc.

2000 Corporate Blvd., N.W.

Boca Raton, FL 33431

USA

Telephone Orders:

Continential USA, except Florida: 1-800-272-7737

Florida and outside Continential USA: 1-407-994-0555

The expected price is $12.95.

The MATLAB Primer is no longer available as TeX source.

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

From: Roger Haggard <RLH0750@tntech.edu>

Date: Fri, 22 Jul 1994 14:41:45 -0500 (CDT)

**Subject: Parallel Processing PC Boards?**

I am looking for some kind of parallel processing board that will

plug into a standard IBM-compatible Personal Computer to

provide a significant speedup of some computation-intensive code.

I seem to remember some ads for I860 or I960 or transputer boards

somewhere, but now I cannot find them. Any pointers would

be very helpful.

Thanks,

Dr. Roger L. Haggard, Assistant Professor

EE Department, Box 5004 FAX: (615)372-6172

Tennessee Tech University Email: RLH0750@TNTECH.EDU

Cookeville, TN 38505 Phone: (615)372-3453

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

From: Markus Hegland <marcus@thrain.anu.edu.au>

Date: Thu, 21 Jul 1994 15:38:43 +1000

**Subject: New Report Series from ANU**

New report series at ANU in scientific computing

The "Area 4 Working Note Series" have resulted from a collaboration bewteen

the Australian National University (ANU) and Fujitsu Ltd. Japan.

The software developed in this collaboration is incorporated in the

Fujitsu mathematical library or SSLII/VPP on the VPP500 series.

Authors of the Area 4 Working Notes include Richard P. Brent, Andrew J.

Cleary, Markus Hegland, Zbigniew Leyk and Mike Osborne. They cover various

topics from numerical linear algebra, FFTs and random number generation.

The Area 4 Working Note Series can be accessed with Mosaic using URL

file://thrain.anu.edu.au:/pub/Area4_Working_Notes/working_notes.html

Further information can be obtained from

Markus Hegland

Program in Advanced Computation

CMA, School of Mathematical Sciences Phone: + 61 (0)6 249 4405

and CSL, Res. Sch. Inf. Sci. Eng. Phone: + 61 (0)6 249 3011

Australian National University Fax: + 61 (0)6 249 5549

CANBERRA ACT 0200 Email: Markus.Hegland@anu.edu.au

Australia

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

From: Steve McCormick <stevem@newton.Colorado.EDU>

Date: Wed, 20 Jul 94 20:26:26 -0600

**Subject: Date Change for Copper Mountain Multigrid Conference**

CHANGE OF DATES FOR COPPER MOUNTAIN CONFERENCE ON MULTIGRID METHODS

Due to incorrect estimates by Copper Mountain Resorts of their low

season schedule, we have found it advisable to move the conference

back one week. We apologize if this has caused any inconvenience.

However, we will also take this opportunity to change the cost of

student registration: it is now gratis. Please encourage students

to attend and/or submit a paper to the student competition!

CALL FOR PAPERS

COPPER MOUNTAIN CONFERENCE

ON

MULTIGRID METHODS

Copper Mountain, Colorado

April 2 - April 7, 1995

ORGANIZING INSTITUTIONS

The University of Colorado

Front Range Scientific Computations, Inc.

The Society for Industrial and Applied Mathematics

SPONSORS

Department of Energy

National Aeronautics and Space Administration

CONFERENCE CHAIRMEN

Tom Manteuffel and Steve McCormick,

University of Colorado

PROGRAM COMMITTEE

Joel Dendy, Los Alamos National Laboratory

Van Henson, Naval Postgraduate School

Jan Mandel, University of Colorado at Denver

Duane Melson, NASA Langley

Seymour Parter, University of Wisconsin

Joseph Pasciak, Brookhaven National Laboratory

John Ruge, University of Colorado at Denver

Klaus Stueben, Gesellschaft f. Math. u. Datenverarbeitung

Pieter Wesseling, Delft University

Olof Widlund, Courant Institute

WORKSHOP CHAIRMAN

Paul Frederickson, RIACS

CIRCUS CHAIRMAN

Craig Douglas, IBM/CERFACS/Yale

SPECIAL FEATURES

Circus: forum for late-breaking results

Workshops: informal discussions on topics of interest

Student Paper Competition: travel support and special session

Proceedings: NASA Conference Publication

Special Journal Publication of Proceedings: to be arranged

CONFERENCE DEADLINES

Student Papers Dec. 1, 1994

Abstracts Jan. 1, 1995

Lodging Reservations Feb. 28, 1995

Early Registration Feb. 28, 1995

Papers for Proceedings Apr. 2, 1995 (at conference)

CIRCUS AND WORKSHOPS

Anyone who wants to give a talk and will not be in the regular

session may do so at one of the Circus sessions. Each session will

begin by asking who wishes to speak and setting the Circus schedule

accordingly. To provide a more informal atmosphere for discussion,

there will also be time set aside for Workshops on specific topics

of interest. The schedule for the Circus and Workshops will be

determined each day according to demand.

STUDENT PAPER COMPETITION

Travel and lodging assistance will be awarded to students judged to

have the best research papers. Papers with original research due

mainly to the student must be received before December 1, 1994. They

must be singly authored and no more than 10 pages in length. Sending

only an abstract is unacceptable. A panel of judges will determine

the best papers. Authors of the three best papers will be given a

travel stipend, free lodging, and registration, and will be expected

to present their papers in a special session at the conference.

Several other students who participate in the competition may be

awarded free lodging and registration, depending on availability of

funds.

FORMAT

There will be morning and late afternoon lectures of approximately

25 minutes each. Evenings will be reserved for the Circus and

Workshops. Afternoons will be open for more informal workshops and

discussions.

HOW TO CONTRIBUTE TO THE REGULAR SESSION

Potential contributors should submit an abstract of no more than

200 words by hard copy regular mail or, preferrably, by postscript

or ASCII email to:

CCMM95

University of Colorado

Program in Applied Math

CB 526

Boulder CO 80309-0526

ccmm@boulder.colorado.edu

If you submit your abstract by email, please do NOT send a TeX or

LaTeX file. It will be returned if you do. Instead, please send

either a ps file or an ASCII file.

Authors will be notified of the status of their abstract by the end

of January. Those notified of acceptance may then submit their paper

to the proceedings by bringing hard copy to the conference. Authors

who wish to make their paper generally available will be encouraged

to submit a ps file to mgnet.

DEADLINE FOR SUBMISSION OF ABSTRACTS IS JANUARY 1, 1995

FURTHER INFORMATION OR QUESTIONS REGARDING

LOGISTICS, REGISTRATION, ETC.

MAY BE DIRECTED TO:

ccmm@boulder.colorado.edu

YOU MAY ALSO CONTACT:

Steve McCormick

University of Colorado

Program in Applied Math

CB 526

Boulder CO 80309-0526

(303)492-0662

THE SCHEDULE OF TALKS MAY BE OBTAINED IN

FEBRUARY BY ACCESSING:

ccmminfo@boulder.colorado.edu

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

From: Ivan Dimov <ivdimov@BGCICT.BITNET>

Date: Fri, 22 Jul 1994 09:22:03 +0200

**Subject: Numerical Methods Conference in Bulgaria**

P R O G R A M M E

of the 3rd International Conference on

NUMERICAL METHODS AND APPLICATIONS

Sofia, 21-26 August, 1994

(Key and Invited lectures)

MONDAY, AUGUST 22

9:00 - 9:15 Opening of the Conference

9:15 - 10:00 Z. Zlatev, I. Dimov, K. Georgiev, Optimizing large air

pollution models on high speed computers.

10:30 - 11:15 V. Thomee On the numerical solution of an evolution equation

with memory.

11:15 - 12:00 H. Chen, R. Ewing, R. Lazarov, Superconvergence of the mixed

finite element approximations to parabolic equations.

12:00 - 12:35 I. Dimov, A. Karaivanova, Overconvergent Monte Carlo

methods for density-function modelling using B-splines.

MONDAY, AUGUST 22

14:00 - 14:45L. Xanthis, The method of arbitrary lines: recent advances

in computational mathematics and mechanics.

14:45 - 15:20 Chr. Christov, A. Ridha, Splitting scheme for iterative

solution of biharmonic equation. Application to 2D

15:20 - 15:55 T. Rusten, A numerical method for solution of partial

differential equations modelling of the solidification of a binary alloy.

16:20 - 17:05 T.F. Chan, B. Smith, J. Zou, Multigrid and domain

decomposition methods for unstructured meshes.

17:05 - 17:40 I. Lirkov, S. Margenov, On circulant preconditioning of

elliptic problems in L-shaped domains.

17:40 - 18:15 B. Philippe, M. Sadkane, Arnoldi s procedure and angles

between Krylov subspaces.

TUESDAY, AUGUST 23

9:00 - 9:35 Bl. Sendov, Parallel approximation with self-similar

functions.

9:35 - 10:10S. Dimova, M. Kaschiev, M. Koleva, D. Vasileva, Numerical

analysis of blow-up nonradial solutions of a nonlinear heat-transfer

equation.

10:30 - 11:15 J. Bramble, A least squares approach based on a discrete

minus one inner product for first order systems.

11:15 - 12:00 O. Axelsson, M. Neytcheva, The Short Length AMLI Method-II.

Rate of convergence.

12:20 - 12:40 J.Claver, Fine and medium parallel algorithms for the

Lyapunov's equations on a shared memory multiprocessor.

TUESDAY, AUGUST 23

14:00 - 14:45 R. Ewing, Yu. Kuznetsov, R. Lazarov, S. Maliassov,

Preconditioning of nonconforming finite element approximations of second

order elliptic problems.

14:45 - 15:20 P. Vassilevski, O. Axelsson, A two-level stabilizing

framework for interface domain decomposition preconditioners.

15:20 - 15:55 T. Mathew, A splitting method for parabolic problems using

domain decomposition.

16:20 - 16:55 G. Bourdin, J. Greenberg, A. Le Roux, A numerical scheme for

a quadratic porous media equation.

16:55 - 17:30 J. Wang, T. Mathew, Mixed finite element method over

quadrilaterals.

17:30 - 18:05 P. Vabishchevich, Parallel domain decomposition algorithms

for time-dependent problems of mathematical physics.

WEDNESDAY, AUGUST 24

9:00 - 9:35 G. Gibson, C. Glasbey, D. Elston, Monte Carlo evaluation of

multivariate normal integrals and sensitivity to variate ordering.

9:35 - 10:10 C. Jacoboni, M. Nedjalkov, Monte Carlo modelling of quantum

electron transport in semiconductor structures. Simulations and

Scientific Computing

10:30 - 11:05 G. De Pietro, On the implementation of numerical methods on

parallel computers.

11:05 - 11:40 M. Kartalev, M. Kaschiev, D. Koitchev, Numerical Modeling

of stationary two-dimensional magnetosphere.

11:40 - 12:15 M. Chacha, St. Radev, R. Occeli, L. Tadrist, Liquid jet

disintegration analysis: direct numerical simulation.

12:15 - 12:50 A. Liolios, A bounding numerical approach to seismic

interaction between adjacent buildings.

THURSDAY, AUGUST 25

9:00 - 9:45 O. Spaniol, Ch. Engel, Parallel processing of communication

protocols.

9:45 - 10:30 D.J. Evans, Parallel solution of linear systems by implicit

matrix elimination.

10:50 - 11:25 W. Schade, V. Jossifov, I. Koepp, A parallelized placement

algorithm for printed circuit board design.

11:25 - 12:00 H. Kuchen, H. Stolze, A data parallel functional language

for distributed memory machines.

12:00 - 12:35 G. Megson, V. Aleksandrov, I. Dimov, A fixed sized regular

array for matrix inversion by Monte Carlo method.

FRIDAY, AUGUST 26

9:00 - 9:45 G. Milovanovic, Summation of slowly convergent series via

quadratures.

9:45 - 10:20 J.-F. Carpraux, S. Godunov, S. Kuznetsov, Stability of the

Krylov basis and subspaces.

10:20 -10:55 A.A. Samarskij, Stability of difference schemes.

11:15 - 12:00 M. Vajtersic, Two classes of efficient hypercube orderings

for SVD.

12:00 - 12:35R. Beauwens, L. Dujacquier, S. Hitimana, M.monga-Made,

MILUfactorizations for 2-processor orderings.

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

From: Svetozar D. Margenov <margenov@math.ucla.edu>

Date: Tue, 19 Jul 94 17:47:16 PDT

**Subject: IMACS Symposium on Iterative Methods**

Second IMACS International Symposium on

Iterative Methods in Linear Algebra

June 18-21, 1995, Blagoevgrad, Bulgaria

Organized by: The International Association for Mathematics and

Computers in Simulation and Bulgarian Academy of Sciences(BAS)

International Program Committee:

OWE AXELSSON(KUN,Nijmegen,The Netherlands),

RANDOLPH BANK(UCSD, La Jolla, USA),

ROBERT BEAUWENS(ULB, Brussels, Belgium),

TONY CHAN(UCLA, Los Angeles, USA),

FRANCOISE CHATELIN(IBM, Paris, France),

IVAN T. DIMOV(CICT at BAS, Sofia, Bulgaria),

STEFKA DIMOVA(Sofia University, Bulgaria),

JACK DONGARRA(University of Tennessee,USA),

IAIN DUFF(Rutherford Appleton Lab., Oxon, UK),

RICHARD E. EWING (TA & MU, College Station, USA),

ROLAND FREUND(AT&T Bell Lab., Murray Hill, USA),

KRASSIMIR GEORGIEV(CICT at BAS, Sofia, Bulgaria),

APOSTOLOS HADJIDIMOS (Purdue University, USA),

SVEN HAMMARLING(NAG, Oxford, UK),

PIET HEMKER (CWI, Amsterdam, The Netherlands),

OLEG ILIEV (IM at BAS, Sofia, Bulgaria),

MICHAIL KASCHIEV(IM at BAS, Sofia, Bulgaria),

DAVID KINCAID (CNA, University of Texas at Austin, USA),

YOUSEF SAAD (University of Minnesota, Minneapolis, USA),

HARRY YSERENTANT (Univ. of Tuebingen, Germany),

HENK VAN DER VORST (RUU, Utrecht, The Netherlands),

JUNPING WANG(University of Wyoming, Laramie,USA),

RAGNAR WINTHER(University of Oslo, Norway),

DAVID H. WOOD(University of Delaware, USA)

Topics:

MATRIX ANALYSIS(convergence acceleration,preconditioning

techniques, methods for nonsymmetric, indefinite, singular

and overdetermined systems, sparse eigenproblems);

APPLICATIONS to PDEs(multigrid methods, domain decomposition

methods, spectral methods), systems theory, least square

problems, parallel matrix computation;

SOFTWARE DEVELOPMENT(sparse linear systems, sparse eigenproblems,

application oriented software; on sequential machines; on parallel

machines).

CALENDAR

Deadline for submission of abstracts (one page stating clearly

the originality and importance of the results): October 1994

Notification of acceptance of the papers on the basis of

the submitted abstracts mailed by: January 1995

Deadline for submission of full papers: March 1995

Notification of acceptance of full papers mailed by: April 1995

Special Sessions

"The influence of high-nonnormality on the reliability of iterative

methods in Computational Linear Algebra", by Francoise Chatin-Chatelin,

University of Paris IX and Valerie Fraysee, CERFACS

"Krilov-subspace methods for nonsymmetric and indefinite linear

systems", by Roland Freund, AT & T Bell Lab., Murray Hill, USA

"Iterative Monte Carlo methods", by Ivan T. Dimov, CICT at BAS, Bulgaria

Robust Preconditioners" or "Industrial Problems", by Yousef Saad,

University of Minnesota, Minneapolis, USA

Local Organizing Committee: SVETOZAR MARGENOV and PANAYOT VASSILEVSKI

Conference address: E-mail: imacs95@bgearn.bitnet

Panayot S. Vassilevski or panayot@bgearn.bitnet

Second IMACS Int.Symp. on

Iterative Methods in Linear Algebra

CICT at Bulgarian Academy of Sciences

"Acad. G.Bontchev" street, block 25A

1113 Sofia, Bulgaria

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

From: Roy Williams <roy@delilah.ccsf.caltech.edu>

Date: Wed, 20 Jul 1994 09:19:53 -0700 (PDT)

**Subject: Course on Parallel CFD in Stuttgart**

European Research Community On Flow Turbulence And Combustion announces:

ERCOFTAC Course On Parallel Computational Fluid Dynamics

Stuttgart, Germany

October 17 - 20, 1994

COURSE OBJECTIVES

The course is addressed to CFD specialists from research and industry who

want to port their code to a parallel computer. There will be two lecturers

per day, which talk each for 3 hours. The lectures deal to a large extent

with implementation and programming questions as well as with experiences

gained so far from parallel machines. There is less emphasis on mathematical

features or computer science basics.

COURSE OUTLINE

Introduction to Parallel Computers

Dr. Dave Emerson, Daresbury Laboratory

Message Passing: PVM and MPI

Dr. Hans-Georg Paap, Genias

Introduction to High Performance Fortran and Fortran 90

Dr. Dieter Eppel, GKSS Research Center

A General Parallelization Strategy for Multi Domain CFD Codes using C

Prof. Jochem Hauser, CLE

Domain decomposition for unstructured grids

Dr. Roy D. Williams, Caltech

Example of porting an unstructured code to a Parallel Computer

Dr. Ramesh Agarwal, McDonnell Douglas

Example of Porting a flow solver using structured grids to a Parallel Computer

Prof. Siegfried Wagner, University of Stuttgart

Practical experiences with Massively Parallel Computing

Prof. Egon Krause, RWTH-Aachen

ORGANIZING COMMITTEE

Dr. D. Emerson, Daresbury Laboratory, UK

Prof. J. Hauser, Center of Logistics and Expert Systems, Germany

Prof. E.H. Hirschel, DASA, Munchen, Germany

Prof. E. Krause, RWTH-Aachen, Germany

Prof. S. Wagner, University of Stuttgart, Germany

Dr. J.B. Vos, ERCOFTAC Coordination Center, Lausanne, Switzerland

SPONSORS

The course is sponsored by:

European Space Agency (ESA)

European Research Community on Flow, Turbulence and Combustion (ERCOFTAC)

Institut fur Aero- und Gasdynamik, Universitat Stuttgart

Rechenzentrum Universitat Stuttgart

COURSE MATERIAL

A complete set of lecture notes will be handed out at the course.

REGISTRATION FEES

University: 750.-DM

Industry: 1000.-DM

A limited amount of ERCOFTAC scholarships are available for Ph.D Students

or researchers from East European countries. Please contact the local

organizer for more details.

The registration fee covers lunches, coffee breaks, lecture notes and a

course dinner.

FOR MORE INFORMATION

Prof. S. Wagner

Institut fur Aero- und Gasdynamik

University of Stuttgart

Pfaffenwaldring 21

D-70550 Stuttgart

Germany

Tel.: +49 711 685 34 01

FAX: +49 711 685 34 38

or

Dr. Jan B. Vos

ERCOFTAC Coordination Cneter

IMHEF - DGM - EPFL

CH-1015 Lausanne

Switzerland

Tel.: +41 21 693 53 05

FAX: +41 21 693 53 07

E-mail: vos@dgm.epfl.ch

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

From: Jack Dongarra <dongarra@unidhp1.uni-c.dk>

Date: Thu, 21 Jul 1994 09:23:30 +0200

**Subject: EURO-PVM Call for Papers**

First

European PVM Users' Group Meeting

Rome, Italy

October 9-11 1994, Universita' di Roma, Rome

- CALL FOR PAPERS - CALL FOR PAPERS - CALL FOR PAPERS - CALL FOR PAPERS -

Sponsored by

IBM European Center for Scientific and Engineering Computing

Ecole Normale Superieure de Lyon CASPUR-Universita' di Roma

The first European PVM Users Group Meeting will be held October 9 to

11, 1994, at the Conference Room of the University of Rome, Via Salaria

113, Rome, Italy.

The meeting will provide an opportunity for European users of PVM to

meet each other, share ideas and experiences, and meet some of the

members of the PVM Team.

The conference will include:

* Invited talks by:

Wolfgang Gentzsch (Genias, Germany),

Vaidy Sunderam (Emory University),

Bernard Tourancheau (LIP, France),

... TBD ...

... TBD ...

* Contributed papers from the PVM user community.

* Technical presentations by the developers of PVM.

(Including a feedback session on future directions and features)

* Vendor presentations on supported PVM products.

* Social activities.

* Tutorial Session (Sunday 9th) by:

Adam Beguelin (CMU, USA),

Robert Manchek (UT, USA).

There will be Conference Registration/Reception at the conference

location. The registration desk opens, for the tutorial session, at

9:00 AM on Sunday and at 9:00 AM on Monday for the conference.

The Future Directions session ends at 17:00 PM Tuesday.

COMMITTEES

Program Chair: Michel Cosnard (LIP, ENS Lyon)

cosnard@lip.ens-lyon.fr (+33) 7272 8080 (fax)

Renzo Di Antonio (IBM ECSEC)

dantonio@romesc.vnet.ibm.com (+39) 6.5966.5548 (fax)

Jack Dongarra (University of Tennessee and

Oak Ridge National Lab.)

dongarra@cs.utk.edu (615) 974-8296 (fax)

Giovanni Aloisio (Universita' di Lecce)

gax@astrba.ba.cnr.it gax@ibade.ba.infn.it

Organization Chair: Giorgio Richelli (IBM ECSEC)

giorgio@vnet.ibm.com

Frederic Desprez (LIP ENS Lyon)

DESPREZ@cs.utk.edu

Romano Bizzarri (CASPUR-Universita' di Roma)

bizzarri@caspur.it

Program Committee: Fabrizio Baiardi (Universita di Pisa),

Giovanni Aloisio (Universita' di Lecce),

Adam Beguelin (Carnegie Mellon University),

Serge Chaumette (LABRI, Bordeaux),

Marc Garbey (LAN1-Lyon),

Al Geist (Oak Ridge Nat. Lab.),

Marc Gengler (LITH, EPF Lausanne),

Thomas Ludwig (Technische Universitaet, Muenchen),

Robert Manchek (University of Tennessee),

Pierre Manneback (Universit\'e Polytechnique de Mons),

Vaidy Sunderam (Emory University),

Piero Sguazzero (IBM ECSEC),

Pavel Tvrdik (Faculty of Elec. Eng., CTU),

Stephane Ubeda (Universite de Saint-Etienne).

Organization Comm.:

Giulia Caliari (IBM ECSEC)

Salvatore Filippone (IBM ECSEC)

Stefano Patarnello (IBM ECSEC)

Giorgio Richelli (IBM ECSEC)

Nico Sanna (CASPUR-Universita' di Roma)

Call For Papers

We invite everyone with PVM ideas or experiences to submit abstracts

of papers and posters for possible presentation at the Users' Group meeting.

List of topics includes (but is not limited to):

The PVM system:

Tools

Libraries

Extensions and Improvements

Vendors Implementations

Programming Environments

....

Algorithms:

Numerical Kernels

Scheduling and Load Balancing

Benchmarking and Pseudo-Applications

....

Real-world Parallel Applications:

CFD

Image Processing

Structural Analysis

Chemistry

Aerodynamics

....

Authors are requested to submit a 4-pages extended abstract before

September 15, 1994. Abstracts will be reviewed and authors notified of

their acceptance by October 1.

Any special equipment required for the talk should also be indicated

in the abstract.

Abstracts should be submitted in postscript form

by e-mail to europvm@lip.ens-lyon.fr.

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

From: Philip Aston <P.Aston@mcs.surrey.ac.uk>

Date: Thu, 21 Jul 1994 17:09:32 +0100 (BST)

**Subject: Post Doc at Surrey, UK**

Postdoctoral Research Fellow

Department of Mathematical

and Computing Sciences

University of Surrey, UK

A postdoctoral research fellow is required to work on the project

`Numerical Investigation of Turbulence in the Complex Ginzburg-Landau

Equation', which is funded by the EPSRC for a period of 3 years and will be

supervised by Dr P. Aston and Dr M. Bartuccelli in the Department of

Mathematical and Computing Sciences, together with Dr P. Voke in the

Department of Mechanical Engineering.

The project involves the development of numerical methods suitable for the

accurate simulation of both hard and soft turbulence in the CGL equation.

The norms of the solutions will then be compared with analytical upper

bounds. The relationship between the hard turbulent solutions of the CGL

equation and the finite time singularities of the Nonlinear Schrodinger

equation in the inviscid limit will also be considered.

Applicants should have, or expect to obtain, a PhD and should have

experience in either numerical analysis or nonlinear dynamical systems

as well as being a competent programmer. Knowledge of Fortan and Unix would

be an advantage. The appointment will on the 1A scale with starting salary

in the range 13941 - 15566 pounds per annum. The anticipated starting date

for the project is October 1994.

Applications in the form of a curriculum vitae (two copies), including the

name and address of two academic referees should be sent to the Personnel

Office (SAB), University of Surrey, Guildford, Surrey GU2 5XH, UK by Friday

2 September quoting reference number 280. Further details can be obtained

from the Personnel Office at the above address or by telephone on 0483-259360.

Informal enquiries may be made to Dr P. Aston (P.Aston@mcs.surrey.ac.uk)

or Dr M. Bartuccelli (M.Bartuccelli@mcs.surrey.ac.uk).

The University is committed to an Equal Opportunities Policy.

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

From: John Holt <jnh@maths.uq.oz.au>

Date: Wed, 20 Jul 94 15:17:02 EST

**Subject: Visitors and Post Docs, Univ. of Queensland**

Visitors and/or Post Docs

The Centre for Industrial and Applied Mathematics and Parallel Computing

Department of Mathematics

The University of Queensland

Queensland, Australia

CIAMP staff members currently have Australian Research Council funding for

a project entitled "Discrete optimisation algorithms for practical sequencing

and scheduling problems arising in the transportation industry."

The particular work being undertaken concerns algorithms for stochastic

vehicle routing problems and the use of parallel computers for a range of

methods appropriate for the combinatorial optimisation problems which arise in

the scheduling of vehicles and crew. Application areas considered so far

include airline crew scheduling, bus and crew scheduling, locomotive

scheduling and delivery vehicle scheduling.

The Centre is interested in hearing from suitably qualified people who may be

interested in visiting this year or next for periods of at least 3 months to

work on the project or who may be interested in applying for a post doctoral

position for 12 months. Experience with one or more of set partitioning,

Lagrangean relaxation or parallel algorithms for discrete optimisation

problems would be an advantage.

In the case of visitors, some support could be offered for people on leave from

their own universities who wish to work on the project.

For further information, contact:

Dr John Holt

CIAMP

Department of Mathematics

The University of Queensland

Qld, 4072

AUSTRALIA

email: jnh@axiom.maths.uq.oz.au

Telephone: +61 7 365 3265

+61 7 365 2673

Fax: +61 7 365 1477

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

From: SIAM <tschoban@siam.org>

Date: Tue, 19 Jul 94 13:45:42 EST

**Subject: Contents, SIAM Scientific Computing**

Contents

SIAM Journal on Scientific Computing

Volume 15, Number 6, November 1994

Quasi-Random Sequences and Their Discrepancies

William J. Morokoff and Russel E. Caflisch

A Gradient Random Walk Method for Two-Dimensional Reaction-

Diffusion Equations

Arthur Sherman and Michael Mascagni

Computing Gaussian Likelihoods and Their Derivatives for General

Linear Mixed Models

Russ Wolfinger, Randy Tobias, and John Sall

Thin Plate Splines with Discontinuities and Fast Algorithms for

Their Computation

David Lee and Jyh-Jen Horng Shiau

On the Parallel Implementation of Jacobi and Kogbetliantz

Algorithms

Jurgen Gotze

Efficient Variants of the Vertex Space Domain Decomposition

Algorithm

Tony F. Chan, Tarek P. Mathew, and Jian-Ping Shao

Solution of the Systems Associated with Invariant Tori

Approximation II: Multigrid Methods

Luca Dieci and Georg Bader

Performance of Several Optimization Methods on Robot Trajectory

Planning Problems

Joseph G. Ecker, Michael Kupferschmid, and Samuel P. Marin

An Efficient Block-Oriented Approach to Parallel Sparse Cholesky

Factorization

Edward Rothberg and Anoop Gupta

A Two-Phase Algorithm for the Chebyshev Solution of Complex Linear

Equations

Dirk P. Laurie and Lucas M. Venter

Preconditioning for Domain Decomposition through Function

Approximation

Mo Mu and John R. Rice

Using Krylov Methods in the Solution of Large-Scale Differential-

Algebraic Systems

Peter N. Brown, Alan C. Hindmarsh, and Linda R. Petzold

Efficient Spectral-Galerkin Method I. Direct Solvers of Second- and Fourth-Order

Equations Using Legendre Polynomials

Jie Shen

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

From: Eduardo Sontag <sontag@control.rutgers.edu>

Date: Tue, 19 Jul 94 19:57:47 BST

**Subject: Contents, Control, Signals and Systems**

MATH OF CONTROL, SIGNALS, AND SYSTEMS

TABLE OF CONTENTS, Vol. 7, No. 4

Tryphon Georgiou,

Differential stability and robust control of nonlinear systems,

pp. 289-306.

Corrado Deconcini and Fabio Fagnani,

Symmetries of differential behaviors and finite group actions on

free modules over a polynomial ring, pp. 307-321.

Daniel E. Miller and Edward J. Davison,

On asymptotic model matching, pp. 322-340.

A. Pastor and V. Hernandez,

Differential periodic Riccati equations: Existence and uniqueness

of nonnegative definite solutions, pp. 341-362.

Yu-Fan Zheng and Li Cao,

On general construction of reduced inverse for controlled systems,

pp. 363-379.

Author Index for Vol 6, p. 380

Subject Index for Vol 6, p. 381

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

From: Richard Brualdi <brualdi@math.wisc.edu>

Date: Wed, 20 Jul 1994 13:03:17 -0500 (CDT)

**Subject: Contents, Linear Algebra and its Applications**

LINEAR ALGEBRA AND ITS APPLICATIONS

Contents Volumes 208/209

Preface 1

Man-Duen Choi and Peter Rosenthal (Toronto, Ontario, Canada)

A Survey of Chandler Davis 3

Fuad Kittaneh (Amman, Jordan)

On Some Operator Inequalities 19

Man-Duen Choi (Toronto, Ontario, Canada), Mary Beth Ruskai

(Lowell, Massachusetts), and Eugene Seneta (Sydney, Australia)

Equivalence of Certain Entropy Contraction Coefficients 29

Kenneth R. Davidson and Marc S. Ordower

(Waterloo, Ontario, Canada)

Some Exact Distance Constants 37

V. Olevskii and M. Solomyak (Rehovot, Israel)

An Estimate for Schur Multipliers in Sp-Classes 57

T. Ando (Sapporo, Japan) and F. Hiai (Mito, Ibaraki, Japan)

Inequality Between Powers of Positive Semidefinite Matrices 65

Gerd M. Krause (Bielefeld, Germany)

Bounds for the Variation of Matrix Eigenvalues

and Polynomial Roots 73

Ludwig Elsner (Bielefeld, Germany)

Perturbation Theorems for the Joint Spectrum of

Commuting Matrices: A Conservative Approach 83

Michael Stewart (Urbana, Illinois) and

George Cybenko (Hanover, New Hampshire)

Perfect-Reconstruction Filtering With Unitary

Operators and Projections 97

Stephen Pierce (San Diego, California) and

Leiba Rodman (Williamsburg, Virginia)

Lipschitz Properties of Some Actions of Matrix Groups 135

C. Laurie (Tuscaloosa, Alabama), B. Mathes (Waterville, Maine),

and H. Radjavi (Halifax, Nova Scotia, Canada)

Sums of Idempotents 175

D. Przeworska-Rolewicz (Warszawa, Poland)

Remarks on Commutators With Operators Having Either

Finite Nullity or Finite Deficiency 199

Avraham Feintuch (Beersheva, Israel)

Gap Metric Robustness for Linear Time-Varying Systems 209

Takayuki Furuta (Tokyo, Japan)

A Note on the Arithmetic-Geometric Mean Inequality

for Every Unitarily Invariant Matrix Norm 223

Don Hadwin (Durham, New Hampshire)

An Algebraic Version of the Multiplication Property

of the Fredholm Index 229

Alexander Markus (Beer-Sheva, Israel) and

Vladimir Matsaev (Ramat-Aviv, Israel)

The Failure of Factorization of Positive Matrix Functions

on Noncircular Contours 231

Sujit Kumar Mitra (New Delhi, India)

Separation Theorems 239

Jin-Hsien Wang (Kaohsiung, Taiwan, Republic of China) and

Pei Yuan Wu (Hsinchu, Taiwan, Republic of China)

Difference and Similarity Models of Two Idempotent Operators 257

T. Ando (Sapporo, Japan) and Richard A. Brualdi

(Madison, Wisconsin)

Sign-Central Matrices 283

G. W. Stewart (College Park, Maryland)

Perturbation Theory for Rectangular Matrix Pencils 297

C. C. Paige (Montreal, Quebec, Canada) and

M. Wei (Shanghai, China)

History and Generality of the CS Decomposition 303

Mihaly Bakonyi (Atlanta, Georgia) and

Charles R. Johnson (Williamsburg, Virginia)

Invertible Completions of Partial Operator Matrices:

The Nonsymmetric Case 327

R. McEachin (Fort Wayne, Indiana)

Analyzing Specific Cases of an Operator Inequality 343

Rajendra Bhatia (New Delhi, India)

First and Second Order Perturbation Bounds for the

Operator Absolute Value 367

Ilya Spitkovsky (Williamsburg, Virginia)

Once More on Algebras Generated by Two Projections 377

Khakim D. Ikramov and Vadim N. Chugunov (Moscow, Russia)

On the Teng Inverse Eigenvalue Problem 397

Seppo Hassi and Kenneth Nordstrom (Helsinki, Finland)

On Projections in a Space With an Indefinite Metric 401

M. Omladic (Ljubljana, Slovenia), M. Radjabalipour

(Kerman, Iran), and H. Radjavi (Halifax, Nova Scotia, Canada)

On Semigroups of Matrices With Traces in a Subfield 419

W. O. Amrein (Geneva, Switzerland) and

Kalyan B. Sinha (New Delhi, India)

On Pairs of Projections in a Hilbert Space 425

Karl Gustafson (Boulder, Colorado)

Antieigenvalues 437

S. Friedland (Chicago, Illinois) and M. Katz (Haifa, Israel)

On the Maximal Spectral Radius of Even Tournament

Matrices and the Spectrum of Almost Skew-Symmetric

Compact Operators 455

Ren-Cang Li (Berkeley, California)

On Eigenvalue Variations of Rayleigh Quotient Matrix

Pencils of a Definite Pencil 471

Daniel Alpay (Beer-Sheva, Israel), Joseph A. Ball (Blacksburg,

Virginia), Israel Gohberg (Tel-Aviv, Ramat-Aviv,

Israel), and Leiba Rodman (Williamsburg, Virginia)

The Two-Sided Residue Interpolation in the Stieltjes Class

for Matrix Functions 485

J. A. Dias Da Silva (Lisboa, Portugal), Daniel Hershkowitz

(Haifa, Israel), and Hans Schneider (Madison, Wisconsin)

Sum Decompositions of Symmetric Matrices 523

P. A. Fuhrmann (Beer-Sheva, Israel)

On Skew Primeness of Inner Functions 539

Author Index 553

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

From: Marilyn Radcliff <radcliff@math.ohio-state.edu>

Date: Fri, 22 Jul 1994 08:31:43 -0400 (EDT)

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

Table of Contents

Journal of Approximation Theory, Volume 78, Number 2, August 1994

Roland Durier. The Fermat-Weber Problem and Inner Product Spaces, 161-173.

T. N. T. Goodman. Interpolatory Hermite Spline Wavelets, 174-189.

Thomas Bagby and Norman Levenberg. Bernstein Theorems for Elliptic

Equations, 190-212.

Xin Li and E. B. Saff. Local Convergence of Lagrange Interpolation

Associated with Equidistant Nodes, 213-225.

D.-W. Buyn and S. Saitoh. Approximation by the Solutions of the Heat

Equation, 226-238.

Mao-Dong Ye and Ding-Xuan Zhou. A Class of Operators by Means of

Three-Diagonal Matrices, 239-259.

Christian Berg. Markov's Theorem Revisited, 260-275.

Radwan Al-Jarrah and Sayel Ali. Interpolation of Entire Functions Associated

with Some Freud Weights, II, 276-285.

Robert B. Gardner and N. K. Govil. On the location of the Zeros of a

Polynomial, 286-292.

Note

Hidefumi Kawasaki. A Second-Order Property of Spline Functions with One

Free Knot, 293.

Marilyn Radcliff radcliff@math.ohio-state.edu

Department of Mathematics radcliff@ohstpy.bitnet

The Ohio State University 1-(614)-292-3317 (office)

231 West Eighteenth Avenue 1-(614)-292-4975 (department)

Columbus, Ohio 43210-1174, U.S.A. 1-(614)-292-1479 (FAX)

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

End of NA Digest

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