NA Digest Sunday, July 30, 1995 Volume 95 : Issue 30

Today's Editor:
Cleve Moler
The MathWorks, Inc.

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From: NA Digest <>
Date: Sun July 30 22:05:31 EDT 1995
Subject: NA Digest Calendar

NA Digest Calendar
Date Topic Place NA Digest #

Aug. 7-16 Industrial Mathematics Modeling Raleigh, NC 12
Aug. 16-19 International Linear Algebra Society Atlanta, GA 07
Aug. 19-22 Operations Research Beijing, China 05
Aug. 21-23 Workshop on Conservation Laws Trondheim, Norway 44
Aug. 21 PARA95, ScaLAPACK & PVM NAG Lyngby, Denmark 23
Aug. 21-24 Applied Parallel Computing Lyngby, Denmark 15
Aug. 23-27 Biology, Ecology and Medicine Sofia, Bulgaria 09
Aug. 24-29 Differential Equations Rousse, Bulgaria 06
Aug. 27-31 Circuit Theory and Design Istanbul, Turkey 42
Aug. 28-30 European Simulation Meeting Gyor, Hungary 07
Aug. 28... Computational and Applied Mathematics Curitiba, Brazil 03
Aug. 29... Parallel Statistics and Economics Trier-Mainz, Germany 41
Aug. 31... Matrix Computations and QCD Workshop Lexington, KY 27

Sep. 5-10 Neural Networks and Neurocontrol Quintana Roo, Mexico 21
Sep. 5-14 Computing Techniques in Physics Skalsky dvur, Czech. 08
Sep. 12-15 Parallel Computing in Russia St.-Petersburg, Russia 45
Sep. 17-21 Acoustics of Submerged Structures Boston, MA 94:22
Sep. 18-22 European Conference on Numerical Math. Paris, France 18
Sep. 18-22 High Energy Physics Rio de Janeiro, Brazil 23
Sep. 20 Scottish Computational Maths Edinburgh, Scotland 20
Sep. 23 Pacific NorthWest Numerical Analysis Bellingham, WA 15
Sep. 25-28 Computer Methods and Water Resources Beirut, Lebanon 21
Sep. 26-29 Scientific Computing, Validated Numerics Wuppertal, Germany 16
Sep. 26... Cerfacs Linear Algebra Year Toulouse, France 15
Sep. 26-29 CERFACS Direct Methods Workshop Toulouse, France 30
Sep. 27-30 Mathematical Tools in Metrology Oxford, UK 51

Oct. 9-15 Cubature Formulae Krasnoyarsk, Russia 08
Oct. 10-12 Multigrid Tutorial Rehovot, Israel 27
Oct. 13-14 Differential Equations Raleight, NC 29
Oct. 13-14 Matrix Analysis Kalamazoo, MI 20
Oct. 15-19 Parallel Algorithms Wuhan, China 08
Oct. 16-17 Meshing Roundtable Albuquerque, NM 19
Oct. 16-18 1995 MATLAB Conference Cambridge, MA 12
Oct. 20-22 South-Central Student Conference Houston, TX 20
Oct. 23-26 SIAM Annual Meeting Charlotte, NC 05

Nov. 1- 4 Complementarity Problems Baltimore, MD 05
Nov. 6- 9 Geometric Design Nashville, TN 04
Nov. 12-17 Semiconductor Device Modeling San Francisco, CA 20
Nov. 15-17 Simulation of Devices and Technologies Kruger, South Africa 01
Nov. 19-22 Pure and Applied Mathematics Isa Town, Bahrain 38

Dec. 8 Runge-Kutta Centenial Amsterdam, Netherlands 27
Dec. 10-14 Global Optimization Szeged, Hungary 26
Dec. 14-16 Dynamical Systems/Numerical Analysis Atlanta, GA 49
Dec. 14-20 Winter School on Iterative Methods Hong Kong 09
Dec. 16-19 Geophysical Inverse Problems Yosemite, CA 19

Jan. 19-21 Boundary Elements Kiel, Germany 20
Jan. 28-30 Discrete Algorithms Atlanta, GA 25
Feb. 12-14 Network Optimization Problems Gainesville, FL 47
Feb. 12-15 Computational Differentiation Santa Fe, NM 29
Mar. 4- 6 Numerical Combustion New Orleans, LA 30
Apr. 1- 4 State of the Art in Numerical Analysis York, England 06
Apr. 9-11 Real Numbers and Computers Marseille, France 26
May 19-23 Computational Fluid Dynamics Freiburg, Germany 30
May 20-22 SIAM Conference on Optimization Victoria, BC, Canada 26
May 21-24 Graphics Interface Conference Toronto, Canada 18
June 3- 8 Domain Decomposition Bergen, Norway 28
June 10-15 Honor Lax and Nirenberg Venice, Italy 29
June 13-15 Algebraic Multilevel Iteration Methods Nijmegen, Netherlands 11
June 17-20 SIAM Conference on Discrete Mathematics Baltimore, MD 29
June 17-20 Integral Methods in Science and Engin. Oulu, Finland 24
June 17-21 Householder XIII Symposium Pontresina,Switzerland 44
June 20-21 Mitrinovic Memorial Conference Belgrade, Serbia 26
June 24-28 Networks and Systems Saint Louis, MO 27
July 8-12 Prague Mathematical Conference Prague, Czech Rep. 03
July 8-12 Quality of Numerical Software Oxford, England 19
July 15-19 Computational Mechanics Miskolc, Hungary 21
July 22-27 Summer Seminar on Plates and Shells Quebec City, Canada 26
July 27-30 Conference Honoring Mike Powell Cambridge, England 48
Aug. 25-31 Congress Theor. & Appl. Mechanics Kyoto, Japan 46
Sep. 2- 5 Nonlinear Programming Beijing, China 18
Sep. 9-13 "ECCOMAS 96" Paris, France 23
Sep. 9-14 Ill-Posed Problems Moscow, Russia 23
Nov. 6- 8 Innovative Time Integrators Amsterdam, Netherlands 19


From: Jim Epperson <>
Date: Thu, 27 Jul 1995 13:03:28 -0500 (CDT)
Subject: SVD for a Special Matrix

Given a matrix A, form the new matrix G as

G = [g1*A g2*A g3*A . . . gm*A]

In other words, G consists of block-wise copies of A, multiplied by
scalars. Is there an easy way to form the SVD of G from the SVD of A?

Jim Epperson


From: Trini Flores <>
Date: Fri, 28 Jul 95 09:47:24 EST
Subject: Conference on Numerical Combustion

Sixth International Conference on NUMERICAL COMBUSTION

March 4-6, 1996
Le Meridien New Orleans Hotel
New Orleans, Louisiana

Conducted by SIAM with the cooperation of Institut National de
Recherche en Informatique et en Automatique (INRIA)


Advances in computational algorithms and hardware continue to
have a revolutionary impact on the combustion sciences, and
permit the examination of scientific and engineering problems of
increasing complexity. The Sixth International Conference on
Numerical Combustion will focus on the integration of theory,
modeling, and numerical implementation in the study of basic
combustion physics and technological applications. The distinct
questions and challenges found in combustion and phase transition
arise from the multiplicity of length and time scales defined by
the chemical, geometric, and flow ingredients. Physically
descriptive, efficient and accurate numerical modeling
of complex phenomena is the subject of the conference.

This conference is designed to bring together computational
scientists, research and design engineers, and mathematical and
physical scientists who are interested in the interdisciplinary
area of numerical combustion.

The conference will highlight the mutual interaction of
designers, experimentalists, computational experts, and
mathematicians in the development of new ideas and methods in the
study of combustion.


The themes of the conference include, but not limited to:

o Turbulence o Kinetics o Detonation o Flames
o Pollution o Microgravity o Applications of parallel
processing o Materials synthesis
o Droplets and sprays o Ignition o Heterogeneous combustion
o Energetic materials (propellants)
o Simulation of internal engine and furnace combustion


The Transport of Combustion Products from Fires
Howard Baum
National Institute of Standards and Technology

State-of-the-Art in IC Engine Combustion Modeling
Sherif El-Tahry
General Motors Research Laboratories

Numerical Simulation of Premixed Flame Propagation in Closed Tube
Kunio Kuwahara
The Institute of Space and Astronautical Science, Japan

Coupling of Chemical Kinetics with Flow and Molecular Transport
Ulrich Maas
Konrad-Zuse-Zentrum fur Informationstechnik Berlin, Germany

Direct Simulations and Modeling of Flame/Wall Interactions
Thierry Poinsot

The Dynamics of Multi-Dimensional Detonation
D. Scott Stewart
University of Illinois, Urbana


A minisymposium is a two-hour session consisting of four 25-
minute presentations with an additional five minutes for
discussion. The presentations should be on a topic selected to
augment the presentations of the plenary speakers or develop a
conference theme. Following is a partial list of minisymposia
and organizers planned for this conference.

Adaptive Mesh Refinement and Applications to Industrial Furnace
John Bell, Lawrence Livermore National Laboratory

Numerical Combustion in the Reciprocating Engine Industry -- The
Need and the Problems
William L. Brown, Caterpillar Corporation and University of
Illinois, Urbana

Parallel Computation of Combustion Problems: New Algorithm and
Marc Garbey, Universite Claude Bernard Lyon I, France

Numerical Techniques for Premixed (Turbulent) Combustion
Rupert Klein, Lehrgebiet fur Mechanik, RWTH, Germany

Computational Modeling of Energetic Materials
Mitchell Smooke, Yale University

Rocket Flows/Instabilities
Ben Zinn, Georgia Institute of Technology


John Buckmaster (Co-Chair)
University of Illinois, Urbana

Mitchell Smooke (Co-Chair)
Yale University

D. Scott Stewart (Co-Chair)
University of Illinois, Urbana

Roland Borghi
Universite de Rouen, France

Sebastian Candel
Laboratoire d' Energetique Grande Voie des Vignes
Ecole Centrale Paris, France

Robert Kee
Sandia National Laboratories, Livermore

Bernard Larrouturou
INRIA, Sophia-Antipolis, France

Elaine Oran
U.S. Naval Research Laboratory

Norbert Peters
RWTH Aachen, Germany

Bernd Rogg
Ruhr-Universitat, Germany

Tadao Takeno
University of Nagoya, Japan

Jurgen Warnatz
Universitat Stuttgart, Germany

Charles Westbrook
Lawrence Livermore National Laboratory

Forman A. Williams
University of California, San Diego


SIAM and the organizing committee are conducting this conference
with the partial support of the US Department of Energy, US
Office of Naval Research, and US Air Force.


The organizing committee invites and encourages proposals for
minisymposia and submissions of contributed abstracts for either
a lecture or poster presentation. To obtain a minisymposium
proposal form, and either a plain TeX or LaTeX macro for
formatting your abstracts, contact NOW!


August 31, 1995 - Deadline for submission of minisymposium

September 25, 1995 - Deadline for submission of contributed


Additional information regarding the conference can be accessed
in electronic format via SIAM's Gopher server: or
through the World Wide Web:


From: Grant Guevremont <grantg@CERCA.UMontreal.CA>
Date: Fri, 28 Jul 1995 12:33:16 -0400
Subject: Conference on Applied Computational Fluid Dynamics

World User Association in Applied Computational Fluid Dynamics

Basel World CFD User Days 1996
Third World Conference in Applied Computational Fluid Dynamics

Date : Sunday to Thursday, May 19 to 23, 1996

Place : Convention Center <<Konzerthaus Freiburg>>, Freiburg i. Br., Germany

Chairmanship of the Conference:
Europe: Prof. Michel Bercovier, Hebrew University of Jerusalem,
Jerusalem, Israel
America: Prof. Wagdi Habashi, Concordia University & CERCA, Montreal, Canada
Asia: Prof. Mutsuto Kawahara, Chuo University , Tokyo, Japan

This conference is
- the major bi-annual event in Applied CFD
- the marketplace for CFD
- the stage for most available CFD packages
- the turntable for access to the industry
- the forum for developments in CFD software engineering

The key issues are
- automatic meshing
- CAD-CAE integration
- distributed computing in industrial applications
- multi-disciplinary applications, fluid-solid interaction, acoustics, etc...
- multiphase flow (mixing and/or reacting)
- integration of CFD in industrial processes and design
- CFD as part of the concurrent engineering process

The conference covers CFD practice in aerospace industry, automotive industry,
railway transportation design, chemical industry, plastics industry,
process technology, metallurgical industry, tribology, HVAC,
environmental protection, electronics components cooling,
food and beverage industry, glass manufacturing, and medical technology.

Target audience
All engaged in CFD such as CFD engineers and users,
software and hardware developers, scientists in the domain of applied CFD,
specialists in material processing, research and development executives,
representatives of the regulatory authorities in CFD,
all those working in adjacent fields of applied engineering

Call for Papers and Workshops
Deadline for submission to Organizer's Office : December 15, 1995.

Call for Videos
Videotape (VHS) must be submitted to Organizer's Office by March 15, 1996.

Forms for enrolment as an exhibitor will be sent on request by the
Organizer's Office.

Student Fellowships
Undergraduate, post-graduate and post-Doctoral students from universities and
similar institutes may apply for a Fellowship. Deadline : December 31, 1995.

Organizers and mailing address :
Please note that ALL mail regarding the conference should be sent to :

Loffler & Associates GmbH,
Basel World CFD User Days 1996
P.O. Box CH-4021
Basel, Switzerland,
Tel./Fax +41 61 692 54 80

Detailed information can be obtained through the World-Wide-Web at;


From: Iain Duff <>
Date: Sat, 29 Jul 95 17:42:32 BST
Subject: Direct Methods Workshop at CERFACS

CERFACS International Linear Algebra Year .... Direct Methods Workshop

As announced in an earlier message to the NA-digest [Volume 95, Issue 15],
CERFACS in Toulouse (France) is organizing the International Linear Algebra
Year (ILAY) from September 1, 1995 to September 1, 1996.

Please find below detailed information about the workshop on Direct Methods,
that will be held this September. It is the first of four workshops that
will be held during the Year.

Note that we have extended the pre-registration deadline for this workshop
by two weeks until AUGUST 15.


DATE: September 26-29, 1995


[There may be some minor changes to the order of the talks and the titles
for each day are for guidance only].

Tuesday September 26 : Tutorial / industrially oriented day

* I. Duff (CERFACS and RAL, United Kingdom),
Techniques and software in the solution of sparse equations by direct
* A. George (Waterloo, Canada),
A retrospective look at the design of SPARSPAK and some considerations for
a future release
* E. Ng (ORNL, USA),
Direct solution of general sparse linear systems: algorithms, codes, and
* J. Reid (RAL, United Kingdom),
The use of Fortran 90 in linear algebra codes
* J. Dongarra (UT and ORNL, USA),
ScaLAPACK: a dense, linear algebra library for message-passing computers
* P. Bjorstad (Bergen, Norway)
Title to be announced

Wednesday September 27 : Parallel methods day

* R. Bisseling (Utrecht, the Netherlands),
Sparse Cholesky factorisation within the bulk synchronous parallel framework
* A. Gupta (Minneapolis, USA),
Parallel sparse factorization and triangular solution
* E. Rothberg (SGI, USA),
Alternatives to minimum degree ordering
* S. Kratzer (SRC, USA),
Data-parallel sparse matrix factorization
* P. Amestoy (ENSEEIHT, France),
Multifrontal parallel LU and QR factorizations
* Speaker/title to be announced

Thursday September 28 : Graph theory day

* F. Alvarado (Wisconsin, USA),
Experiments on assorted sparse prototyping and development environments
* J. Gilbert (Xerox, USA),
A supernodal approach to sparse partial pivoting
* A. Pothen (Old Dominion, USA),
New algorithms for partitioning and ordering

* Afternoon free for informal discussions

Friday September 29 : Sparse matrix factorizations

* J. Barlow (Pennsylvania, USA),
Computation of orthogonal factors of sparse matrices
* J. Liu (York University, Canada),
On multisectors in sparse matrix reorderings
* D. Pierce (Boeing, USA),
Insights and new advances for rank-revealing factorizations
* Z. Zlatev (Riso, Denmark),
Solving sparse linear least squares problems on some supercomputers by
using a sequence of large dense blocks
* T. Davis (Florida, USA),
Approximate degrees in sparsity-preserving orderings for symmetric and
unsymmetric matrices

The workshop will be held at the UNESCO Centre in Toulouse.

Because of support, we are able to keep the cost to 1500 FFR (for registration,
documentation, lunches, tea and coffee) for the four-day workshop, with a
reduction to 1000 FFR for full-time students, and a fee of 3000 FFR for
non-academics. Reduced price accommodation is available at UNESCO and a
limited amount of very cheap accommodation is available at the meteo
residences near the CERFACS building.

Up-to-date information on this workshop (including the abstracts of the talks,
registration forms, etc.) can be found through the WWW page:

Up-to-date information on the other ILAY workshops and the visitor programme
can be obtained through the ILAY home page:

Please contact if you wish to receive additional information.

Iain Duff


From: AT&T <>
Date: Mon, 24 Jul 95 10:24:21 EDT
Subject: Positions at TransQuest Information Solutions

The Decision Support Systems (DSS) organization of TransQuest Information
Solutions, an AT&T and Delta Air Lines joint venture, is interested in
outstanding candidates who are considering consulting and software
development careers in Operations Research and Computer Science.

The qualified candidates will be responsible for the analysis of operational
problems and the development of large-scale decision support systems for
the transportation industry with immediate focus on the airline industry.
Requirements include an advanced degree in Operations Research, Computer
Science, or related field, strong software development capabilities
(e.g. UNIX, Windows development environment, C++ programming, etc.),
previous relevant work experience, good interpersonal skills, and a high
aptitude for problem solving. Academic specialization and/or work
experience in combinatorial/network flow problems, forecasting, routing
and scheduling are desirable.

The selected candidates will work in Atlanta with a possibility of short
term training at AT&T Bell Laboratories in Holmdel, NJ. TransQuest
Information Solutions offers a competitive salary and a comprehensive
benefits packages plus exciting career growth. For consideration,
please send a resume with cover letter to:

Attn: Ms. Susan Sligh
Dept. 800
TransQuest Information Solutions
1001 International Boulevard
Atlanta, GA 30354-1801
e-mail: attmail!transqst!TRANSQUEST!A3!TNail
Fax: (404)714-1964


From: Robert McLachlan <>
Date: Wed, 26 Jul 1995 13:30:08 +1200
Subject: Position at Massey University, New Zealand

Faculty of Information and Mathematical Sciences
Department of Mathematics

Consequent upon the resignation of the foundation Professor of Applied
Mathematics, Graeme Wake, applications are invited for the Chair of Applied
Mathematics within the Department of Mathematics. The other professors in
the department are Professor Wolfgang Vogel (Pure Mathematics) and
Professor Michael Hendy (Personal Chair in Mathematical Biology).

Applicants should possess a strong, internationally recognised research
record in any area of applied mathematics (including mathematical physics
and operations research), good teaching skills, and have good
administrative potential. Links with industry are encouraged. A proven
record in obtaining external funding is required. The appointee will be
expected to provide strong leadership across the whole area of applied
mathematics and be prepared to serve a term as Head of Department.

It is hoped that the appointee will take up the position by July 1996.

Enquiries of an academic nature can be made to the Head of Department
(telephone +64-6-350-5081, facsimile +64-6-350-5611) or to the Acting Dean
of the Faculty of Information and Mathematical Sciences, Professor Jeffrey
Hunter (telephone +64-6-350-5082, facsimile +64-6-350-5611).

The WWW page of the faculty is located at; we
regret that we cannot accept applications by email.

The university reserves the right to make enquiries of any person regarding
any candidate's suitability for appointment. It also reserves the right not
to make an appointment or to appoint by invitation.

An information package including Conditions of Appointment may be obtained
by telephoning +64-6-350-5984.

Applications, including a full curriculum vitae and the names, addresses,
and facsimile numbers of three referees should be sent to Academic
Vacancies, Human Resources Section, Massey University, Private Bag 11-211,
Palmerston North, New Zealand, before the closing date 30 September 1995.

Robert McLachlan
Mathematics Department +64-6-350-4171 w
Massey University +64-6-357-0132 h
Private Bag 11222 +64-6-350-5611 f
Palmerston North
New Zealand


From: Peter Renaud <>
Date: Fri, 28 Jul 1995 14:20:25 +0000 (NZS)
Subject: Position at University of Canterbury, New Zealand

University of Canterbury, Christchurch, New Zealand
Department of Mathematics and Statistics
Chair of Applied Mathematics

The University invites applications for a Chair in Applied Mathematics.
The successful candidate will possess a strong continuing record of
internationally recognized research in any branch of Applied
Mathematics. A proven record of academic leadership demonstrated by
encouraging excellence in research, teaching and postgraduate
supervision will be required.

Current research areas include computational mathematics, dynamical
systems, fluid dynamics, biomathematics and relativity. The department
has strong traditional links with the School of Engineering and the
successful candidate would normally be expected to foster and encourage
these ties.

Applications close on 30 November 1995.

Preliminary enquiries of an academic nature, regarding this position,
may be made to Dr P F Renaud, Head, Department of Mathematics and
Statistics: Telephone (03) 3642696 or Fax (03) 3642587.
Further particulars and Conditions of Appointment may be obtained from
the undersigned. Applications, quoting Position No. MT65, must be
addressed to: Mr A W Hayward, Registrar, University of Canterbury,
Private Bag 4800, Christchurch, New Zealand.

The University has a policy of equality of opportunity in employment.

Please contact me on email


Peter Renaud
Head of Department


End of NA Digest