NA Digest Monday, July 1, 1996 Volume 96 : Issue 25

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

Submissions for NA Digest:

Mail to

Information about NA-NET:

Mail to

URL for the World Wide Web: -------------------------------------------------------

From: NA Digest <>
Date: Mon Jul 1 13:30:58 EDT 1996
Subject: NA Digest Calendar

The Netlib Conferences Database is on the Web at:

NA Digest Calendar
Date Topic Place NA Digest #

July 1- 2 MPI Users Group Notre Dame, IN 52
July 1- 3 Celebration of Women in Math Berkeley, Ca 18
July 1- 4 Finite Element Methods Jyvaskyla, Finland 44
July 1- 5 Grid Adaptation Edinburgh, Scotland 13
July 2 Wavelets Tokyo, Japan 19
July 7-11 ASME Fluids Engineering Division San Diego, CA 95:35
July 8-12 Prague Mathematical Conference Prague, Czech Rep. 95:03
July 8-12 Quality of Numerical Software Oxford, England 19
July 8-19 Numerical Analysis Summer School Leicester, England 41
July 9-12 Monte Carlo Methods Salzburg, Austria 45
July 10-13 Computer-Aided Molecular Design Ithaca, NY 17
July 11-17 Numerical Linear Algebria Split, Croatia 51
July 15-19 Computational Mechanics Miskolc, Hungary 48
July 15-17 Finite Volumes Rouen, France 08
July 17-20 Applications of Computer Algebra Hagenberg, Austria 11
July 21-26 Computational and Applied Mathematics Leuven, Belgium 51
July 22-27 Summer Seminar on Plates and Shells Quebec, Canada 10
July 22-26 SIAM Annual Meeting Kansas City, MO 06
July 22-27 Canadian Mathematical Society Quebec, Canada 44
July 22-26 Summer Seminar Plates and Shells Quebec, Canada 20
July 24-26 Symbolic and Algebraic Computation Zurich, Switzerland 15
July 25 Numerical Dynamics and Elasticity Lawrence, KS 25
July 27-30 Conference Honoring Mike Powell Cambridge, England 45
July 29-.. Theoretical and Numerical Fluid Dynamics Vancouver, Canada 22

Aug. 1- 3 Structured Matrices Santa Barbara, CA 22
Aug. 5- 7 Computational Fluid Dynamics Hampton, VA 17
Aug. 5-13 Industrial Mathematics Modeling Raleigh, NC 13
Aug. 7- 8 Brazil Interval Workshop Recife, Brazil 18
Aug. 14-17 International Linear Algebra Society Chemnitz, Germany 15
Aug. 18-21 Applied Parallel Computing Lyngby, Denmark 24
Aug. 19-21 High Performance Computing Ithaca, NY 21
Aug. 19-21 Parallel Irregular Problems Santa Barbara, CA 44
Aug. 21-24 Total Least Squares Leuven, Belgium 25
Aug. 23 Computational Finance Conference Palo Alto, CA 02
Aug. 25-31 Congress Theor. & Appl. Mechanics Kyoto, Japan 94:46
Aug. 26-30 Lectures in Computational Fluid Dynamics Montreal, Canada 25
Aug. 27-29 Parallel Numerical Algorithms Lyon, France 04
Aug. 27-29 Programming Environment and Tools Lyon, France 06

Sep. 1- 5 Numerical Solution of ODEs Halle, Germany 13
Sep. 2- 5 Nonlinear Programming Beijing, China 04
Sep. 4- 6 Multidisciplinary Analysis Bellevue, WA 05
Sep. 4- 6 Operations Research Braunschweig, Germany 10
Sep. 8-11 Computing in Europe on IBM Platforms Krakow, Poland 14
Sep. 9-13 "Diskrete Optimierung" Hamburg, Germany 18
Sep. 9-13 Computational Methods Applied Sciences Paris, France 15
Sep. 9-14 Inverse and Ill-Posed Problems Moscow, Russia 01
Sep. 9-27 Numerical Simulation of PDEs Trieste, Italy 04
Sep. 15-17 Control System Design Dearborn, MI 43
Sep. 16-18 Multivalued Eikonal Solvers Rocquencourt, France 06
Sep. 16-18 Modern Software Tools Oslo, Norway 24
Sep. 16-21 Computational Modelling Dubna, Russia 07
Sep. 17-20 Italian Operational Research Society Perguia, Italy 05
Sep. 18-20 Virtual Systems and Multimedia Gifu, Japan 14
Sep. 19-29 High Performance Optimization Techniques Delft, Netherlands 22
Sep. 23 Computational Mathematics Glasgow, Scotland 18
Sep. 23-27 Inverse Problems in Wave Propagation Aix les Bains, France 03
Sep. 24-26 Boundary Element Method Braga, Portugal 03
Sep. 24-27 Modeling Issues for Environment Albuquerque, NM 07
Sep. 25-27 Vector and Parallel Processing Porto, Portugal 51
Sep. 25-27 Dutch Numerical Mathematics Zeist, Netherlands 19
Sep. 25-28 Mathematical Tools in Metrology Berlin, Germany 25
Sep. 26-28 Computer Mathematics Athens, Greece 09
Sep. 29... IBM Parallel Programming Ithaca, NY 25
Sep. 30... Interval Methods Wuerzburg, Germany 13

Oct. 1- 4 European Multigrid Conference Stuttgart, Germany 20
Oct. 9-11 Workshop on Scientific Computing Braunschweig, Germany 24
Oct. 9-11 SIAM Conference on Sparse Matrices Coeur d'Alene, ID 16
Oct. 10-11 International Meshing Roundtable Pittsburgh, PA 15
Oct. 20-23 High Performance Computing Tempe, AZ 01
Oct. 21-22 Computational Science and Engineering Purdue, IN 24

Nov. 6- 8 Innovative Time Integrators Amsterdam, Netherlands 40

Dec. 17-19 Mathematics in Signal Processing Warwick, England 48


Jan. 5- 7 Discrete Algorithms New Orleans, LA 15
Jan. 5-12 Computational Mathematics Rio de Janeiro, Brazil 08
Jan. 5-12 Numerical Linear Algebra Rio de Janeiro, Brazil 13
Jan. 24-26 Multi-Scale Problems Kiel, Germany 21
Jan. 27-31 Maths-in-Industy Study Group Melbourne, Australia 11
Mar. 10-12 Scientific Computing Hong Kong 25
Mar. 16-21 Approximation and Optimization Caracas, Venezuela 21
Mar. 12-14 Algorithms and Complexity Rome, Italy 24
Mar. 21-22 AMS Session on Approximation Theory Memphis, TN 11
Apr. 1- 3 Monte Carlo Methods Brussels, Belgium 16
Apr. 6-11 Multigrid Copper Mountain, CO 19
May 26-30 Computational Heat Transfer Cesme, Turkey 05
June 16-18 Mathematical Issues in Geosciences Albuquerque, NM 18
June 24-27 Dundee NA Conference Dundee, Scotland 13
July 14-18 Theoretical and Computational Acoustics New York, NY 14
Aug. 24-29 IMACS World Congress Berlin, Germany 07
Sep. 15-19 Scientific Computing & Diff. Eqns. Grado, Italy 49
Sep. 29-.. ENUMATH-97 Heidelberg, Germany 50


From: Laura Helfrich <>
Date: Mon, 24 Jun 96 11:53:36 EST
Subject: Request for Math-Related URLs

SIAM is currently reorganizing and expanding our "World of Mathematics and
Computing" web pages. Our goal is to provide a comprehensive list of
mathematics-related Web servers, FAQs, bibliographies, software repositories,
newsgroups, etc. To that end, we are requesting URLs from those in the
mathematics and computing community.

The World of Mathematics and Computing page, still very much under construction,
is available at . (It is not currently available
from SIAM's home page.) The optimization link is the best developed of those
subjects currently linked and can be used as an example of the type of
information we are hoping to provide for our users.

Please note that we will not be relying only on the information provided via
this request. We will continue to build this area using the various search
engines available on the Web.

If you have a URL that you would like to submit, please send it to Please include several key words to assist us in properly
categorizing the site. You are not limited to the key words listed on the
World of Mathematics and Computing main page. We expect to add other topics
as this site grows.

Laura B. Helfrich
On-Line Services Manager


From: Ron Boisvert <>
Date: Sat, 29 Jun 96 09:27:28 EDT
Subject: HotGAMS: A Java Enabled Browser for NIST's Math Software Guide


A Java(tm) powered frontend to the
NIST Guide to Available Mathematical Software

HotGAMS, a Java powered client of the NIST Guide to Available
Mathematical Software (GAMS) server, is now available for public use
on the Internet on an experimental basis.

The Guide to Available Mathematical Software is an on-line
cross-index of mathematical and statistical software in use at the
National Institute of Standards and Technology (NIST). Nearly 10,000
problem-solving modules from some 100 software packages are indexed,
including a large subset of the netlib collection. The primary
indexing mechanism is a tree-structured taxonomy of mathematical and
statistical problems. The system is also a virtual repository,
providing redistribution of abstracts, documentation, and source of
much of the software that it catalogs.

HotGAMS allows interactive exploration of the problem taxonomy,
various search operations, and enhanced filtering or `refinement' of
search results compared to its predecessors. A current research
interest is in how to reduce a large number of apparently appropriate
software modules to a few truly relevant ones. HotGAMS begins to
address this need and will serve as a testbed for future

For more information, contact Bruce R. Miller (


From: David Griffiths <>
Date: Fri, 28 Jun 96 18:19:57 BST
Subject: A. R. Mitchell Birthday Book

A R Mitchell: 75th Birthday Celebration Volume

Ron Mitchell celebrated his 75th birthday on the 22 June 1996 and, to
mark the occasion, we have brought out a celebration volume containing
24 invited papers on Numerical Analysis.

In addition to giving biographical details (by D. F. Griffiths,
J. D. Lambert, G. A. Watson, G. Fairweather and R. E. Barnhill) there
are technical contributions from:

M. Aves, P. J. Davies & D. J. Higham
J. C. Butcher
M. Calvo, A. Iserles & A. Zanna
I. Christie, G. H. Ganser & J. W. Wilder
J. Douglas, Jr. & Daoqi Yang
E. S. Fraga & J. Ll. Morris
G. H. Golub, D. J. Silvester & A. J. Wathen
B. M. Herbst, G. J. Le Roux & M. J. Ablowitz
D. P. Laurie & A. Craig
M. A. Lopez-Marcos, J. M. Sanz-Serna & R. D. Skeel
V. S. Manoranjan
K. W. Morton
T. B. Nokonechny, P. Keast & P. H. Muir
M. R. Osborne
M. R. Osborne & G. A. Watson
G. M. Phillips
T. F. Russell & R. V. Trujillo
S. W. Schoombie & E. Mare
D. M. Sloan & R. Wallace
I. C. Smith, R. Wait & C. Addison
G. Strang
Y. Tourigny


Title: Numerical Analysis,
A R Mitchell 75th Birthday Volume
Editors: D. F. Griffiths and G. A. Watson,
ISBN: 981-02-2719-1
Publishers: World Scientific Publishing Co Ltd
Address: Singapore
Pub. date: June 1996

People fro Europe may purchase the book directly from the publishers:
World Scientific Publishing Co Ltd
57 Sheldon Street
London WC2H 9HE

Tel: 44-171-836 0888
Fax: 44-171-836 2020

The Preface and complete list of contents may be viewed at the web page:


From: Loyce Adams <>
Date: Mon, 24 Jun 1996 14:29:59 -0700
Subject: New Book, Linear and Nonlinear Conjugate Gradient-Related Methods

We have recently published a book with SIAM,
entitled `Linear and Nonlinear Conjugate Gradient-Related Methods'
(May,1996). It contains contributions by leading experts who gave
the main invited talks at an AMS-IMS-SIAM Research Conference
held last summer at the University of Washington, Seattle.
The book comprises approximately 164 pages, and is a
softcover volume. Those of you who are interested in this field,
and in particular the interplay between the two facets of CG-related
research, may find this book very useful.

Please feel free to contact SIAM ( for further

Loyce Adams (
Larry Nazareth (


From: P. Wesseling <>
Date: Tue, 25 Jun 1996 10:31:43 +0200 (METDST)
Subject: New Book, High Performance Computing in Fluid Dynamics


Proceedings of the Summerschool on High Performance Computing in Fluid
Dynamics, Delft University of Technology, June 24-28, 1996
Editor: P. Wesseling
Kluwer Academic Publishers, Dordrecht, 1996. 278 pages. ISBN 0-7923-4063-9

Orders may be placed at a price of USD 90 including postage and handling with:
Ms M. Oppenoorth, J.M.Burgers Center, email:,
Fax: +3115 278 2979

This book comtains the course notes of the Summerschool on High Performance
Computing in Fluid Dynamics, held at the Delft University of Technology,
June 24-28, 1996, under the auspices of ERCOFTAC (European Resarch Community
on Flow, Turbulence and Combustion) and the J.M. Burgers Center (Graduate
School for Fluid Dynamics, The Netherlands).

The book is addressed to graduate students and researchers in industry engaged
in scientific computing, who have little or no experience with high
performance computing, but who want to learn more, and/or want to port their
code to parallel platforms. Applications in computational fluid dynamics are

The lectures presented deal to a large extent with algorithmic, programming
and implementation issues, as well as experiences gained so far on parallel
platforms. Attention is also given to mathematical aspects, notably domain
decomposition and scalable algorithms. Computer science basics are not
emphasized. Topics considered are: basic concepts of parallel computers,
parallelization strategies, programming aspects, parallel algorithms,
applications in computational fluid dynamics, the present hardware situation
and developments to be expected. There are ample references to the current
literature, so that the work is a good starting point for those who want to
enter the field of high performance computing, especially if applications
in fluid dynamics are envisaged.


1. Introduction to Parallel Computers: Architecture and Algorithms
D.R. Emerson
2. Programming Aspects and Algorithms for Vector- and Parallel Computers
C. Lacor
3. Porting Industrial codes in High Performance Computers
P.R. Amestoy and M.J. Dayd\'e
4. Parallel Linear Systems Solvers: Sparse Iterative Methods
H.A. van der Vorst
5. Load Balancing for Computational Fluid Dynamics
M. Streng
6. High Performance Computing of Turbulent Flows
F.-S. Lien
7. Data-Parallel Solution of the Incompressible Navier-Stokes Equations
R.W.C.P. Verstappen and A.E.P. Veldman
8. High Performance Computing: Trends and Expectations
P.H. Michielse


From: Jeanne Butler <>
Date: Tue, 25 Jun 1996 08:36:10 -0400
Subject: Workshop on Parallel Programming on the IBM RS/6000 SP

Workshop on Parallel Programming on the IBM RS/6000 SP

Sunday September 29 - Friday October 4, 1996

Cornell Theory Center
Cornell University
Ithaca, NY

The Cornell Theory Center (CTC), a nationally funded high-performance
computing and communications center, is offering a one-week workshop, including
lectures and laboratory sessions, on parallel programming for the IBM SP. CTC's
IBM SP, which consists of 512 RISC processors connected by a high-performance
switch, is the largest of its kind in the world. The SP programming model is
distributed memory.

This workshop will offer sessions on the following topics:

- CTC Essentials:
What programmers need to know about CTC's IBM SP system
configuration and administration.

- Using CTC's IBM SP Effectively:
How to design and code programs that make the best use of the
IBM SP's features.

- The Message Passing Interface (MPI) Standard Library:
How to write parallel programs using this message passing

- Parallelization Case Study using MPI and
High Performance Fortran (HPF):
A step-by-step presentation of converting a serial program to
a parallel program, and tuning its performance.

All topics will be presented using a mix of lectures and programming
exercises, giving participants hands-on experience with parallel

A full description of the topics, as well as the preliminary agenda
and registration form, is available online at:


From: Hartmut Moeck <hmoeck@ChbRB.Berlin.PTB.De>
Date: Wed, 26 Jun 1996 16:13:50 EDT
Subject: Advanced Mathematical Tools in Metrology

Second Annoucement
Advanced Mathematical Tools in Metrology III
September 25-28, 1996 , BERLIN

About the conference series

The aims of the conference are to present and
promote current applications of mathematical
modelling and analysis, numerical algorithms,
statistics and software to metrology. Emphasis will
be placed on the benefits which research workers
and practicians can derive from mathematical tools
with a view to problems they are facing in the field
of metrology.

Chairman / Local Organisation
D. Richter , PTB , Berlin , Germany


European Union (Human Capital & Mobility Prog.)
Visual Numerics (D), JF Lehmanns Fachbuchh. (D)
PTB (D) , Helmholtz Fonds e.V. (D)

General information

The conference will be held at the ,Magnus-Haus"
in the city centre of Berlin, Am Kupfergraben 7.

Information & Conference Secretariat

H. Moeck
PTB , Abbestrasse 2-12, D - 10587 Berlin
Telephone / Fax : +49 (0)30 3481 483 / 406
e-mail :

Programme : Overviews , Tutorials , Talks ,
Poster Exhibition & Discussion , Panel Discussion

K. Kunisch (Berlin , Germany)
Parameter estimation as illposed inverse problems:
Theory and numerical methods
P. Maass (Potsdam , Germany)
Wavelet methods in signal processing
P. Ciarlini (Rome , Italy)
Bootstrap technique
A. Clement et al. (Surenes, France)
The technologically and topologically related surface
model: 13 constraints for dimensioning, tolerancing
and inspection
D. Richter et al. (Berlin, Germany)
Software problems in calibration service: A case study
M.G. Cox et al. (Teddington, UK)
Reference data sets for testing software used in
W. Bich (Turin, Italy)
The ISO Guide on Uncertainty Measurement:
A bridge between statistics and metrology
S. Ellison (Teddington, UK)
Uncertainty in chemical measurement
J. Honerkamp (Freiburg, Germany)
Mathematical methods for data analysis in medical
L. Trahms (Berlin, Germany)
Gaining information from biomedical measurements
J. Sprekels (Berlin, Germany)
Identification of distributed parameters: An overview
W. Stahel (Zurich, Switzerland)
Robust alternativs to least squares
K. Liu (Gaithersburg, USA)
High-dimensional empirical linear prediction


From: Grant Guevremont <>
Date: Thu, 27 Jun 1996 14:51:46 -0400
Subject: Lecture Series in Computational Fluid Dynamics

AUGUST 26-30, 1996


For the first time, the von Karman Institute's Lecture Series in
Computational Fluid Dynamics, held annually in March at the von Karman
Institute (Belgium), will also be offered in North America. The Lecture
Series will be hosted by the Computational Fluid Dynamics Laboratory of
Concordia University, Montreal (Canada), August 26-30, 1996.

The aim of this one week course is to provide in-depth presentations of
well-established methods and of recent advances in the field of
numerical flow simulation. The program is at a specialist level and
covers :

- central and upwind finite volume algorithms on structured and
unstructured grids,
- ENO schemes and higher order recovery techniques,
- preconditioning and multigrid acceleration,
- domain decomposition and parallel computing aspects,
- adaptive elliptic grid generation for structured grids, including
multiblock aspects,
- anisotropic mesh adaptation methods on structured and unstructured
grids, including hexahedral topologies,
- Cartesian grid algorithms based on oct-tree refining,
- a posteriori error estimators.


Full fee : $ 1200 CAD or $ 900 USD

Reduced fee for full-time students : $ 600 CAD or $ 450 USD
In the latter case, a certification of student status must be provided.

Deadline for registration : August 1, 1996


For more detailed information, including registration information and
forms, a detailed timetable, and hotel reservations, please see the
Netlib Conference Database ;

or send an e-mail to


From: Sabine Van Huffel <>
Date: Fri, 28 Jun 1996 09:52:10 +0200
Subject: Workshop on Total Least Squares

LAST ANNOUNCEMENT of the 2nd International Workshop on

August 21--24, 1996
Leuven, Belgium

This interdisciplinary workshop is a continuation of a previous workshop
on ``Total Least Squares: Concepts, Algorithms, Applications'' which was
held in Leuven, Belgium, August 1991, and aims to bring together numerical
analysts, statisticians, engineers, economists, chemists, etc. in order to
discuss recent advances in Total Least Squares (TLS) techniques and
errors-in-variables modeling.

The workshop is partly sponsored by the Belgian National Fund for
Scientific Research (NFWO), and the European Association for Signal
Processing (EURASIP)

The different sessions are :

- Errors-in-Variables Modeling: Basic Concepts and Relationships
- Errors-in-Variables Models and Statistical Estimators (Part 1 and 2)
- TLS Algorithms
- Other Algorithms for Errors-in-Variables Modeling
- Orthogonal Curve fitting
- Total Least Norm Problems
- Structured Total Least Squares Problems
- Errors-in-Variables Estimation in Signal Processing
- Poster Presentations (with 10 min. oral introduction)
- Errors-in-Variables Estimation in System Identification
- Errors-in-Variables Modeling and Prediction

The complete advance program (and electronic registration form) are
available at You can also
obtain the program and registration form (in latex, postscript or ascii
format) via ftp at
You can register via WWW, e-mail or snail mail.

Conference committee: Sabine Van Huffel (chairperson), Bart De Moor,
Wayne Fuller, Leon Gleser, Gene Golub, Bjorn Ottersten,
Rik Pintelon, Pete Stewart and Paul Van Dooren.

Workshop secretariat: Ida Tassens <>
Dept. of Electrical Engineering, ESAT/SISTA,
Katholieke Universiteit Leuven,
Kardinaal Mercierlaan 94, B-3001 Leuven-Heverlee, Belgium
tel : 32/16/32.17.09 fax : 32/16/32.19.86

IMPORTANT NOTE: if you are interested in attending this, you are kindly
requested to register as soon as possible.


From: Benedict Leimkuhler <>
Date: Fri, 28 Jun 1996 16:34:49 -0500 (CDT)
Subject: Circus on Numerical Dynamics and Elasticity.


A Small Circus on Numerical Dynamics and Elasticity

Lawrence, Kansas
July 25, 1996

A small one-ring circus on numerical dynamics and elasticity will be held
on the campus of the University of Kansas at Lawrence, July 25, 1996.

The topics of the circus will include the numerical solution of
elasticity models for molecular applications, as well as algorithms for
computational elastodynamics, such as symplectic/reversible time-stepping
schemes for elastodynamics and related problems in classical mechanics.
Several participants will present video clips showing the visualizations
of the computed dynamics of solid models.

The circus, which is not formally a part of the SIAM meeting, will consist
of a small number of talks held sequentially. Transportation between the
Kansas City Crown Center (site of the SIAM meeting) and Lawrence, as well
as a lunch will be provided by the sponsors (Kansas Center for Advanced
Scientific Computing/KU Dept. of Mathematics). Participants will leave
KC after the morning minisymposia (at 10:45am) and return transporation
will be arranged in the evening after dinner. Seating at a Lawrence
brewery/restaurant is being coordinated for circus participants.

The size of this meeting will be kept strictly limited to preserve the
informal atmosphere. There will be no parallel sessions.

The preliminary list of speakers includes:

Mike Holst (Caltech/Ariz. State U.),
Mathematical and Computational Problems Arising
in Models of Biological Molecules and Membranes

Isaac Klapper (UCLA)
Biological Applications of Curve Dynamics

Krzysztof Kuczera (KU)
Computing Elasticity Constants of Alpha Helices

Dan Kroll (Minn. Supercomputer Institute/U Minn.).
The Structure and Elastic Behavior of Tethered Networks

Oscar Gonzalez (U. Maryland),
Energy and Momentum Conserving Algorithms for
General Models in Nonlinear Elasticity

Eric Barth (New York U.),
Efficient Symplectic-Reversible Simulation of
Rigid and Elastic Systems

Jeff Wendlandt (U.C. Berkeley)
Mechanical Integrators Derived from a Discrete Variational Principle

Kathleen Rogers (U. Maryland)
Computation and Visualization of the Elastic Rod Model of DNA

A related minisymposium will be held at the SIAM meeting (this minisymposium
was added late and does not appear in the preliminary program).
(MS54, Numerical Methods in Nonlinear Elasticity: Dynamics
and Applications, 3:15-5:15PM Monday, web page:

Persons wishing to attend the circus (or to give a talk) should contact
the organizer at the address given below as soon as possible.

Ben Leimkuhler (


From: Raymond Chan <>
Date: Mon, 1 Jul 1996 11:55:26 +0800 (EAT)
Subject: Workshop on Scientific Computing in Hong Kong

Workshop on Scientific Computing 97
Hong Kong
March 10-12, 1997
First Announcement and Call for Paper

This three-day workshop is the sequel to the series of workshops on
Scientific Computing that were held in Hong Kong in the past few years.
It aims to promote research interest in scientific computation for
local mathematicians and engineers and to foster contacts and exchanges
with experts from other parts of the world. This year the workshop will
feature a special session on modern methods in scientific computing
relevant to digital signal and image processing.

Numerical linear algebra, Signal and image processing, Optimization,
Least square, CAGD, Control, and Statistical computing.

Gene Golub (Stanford University, USA)

Richard Bartels (University of Waterloo, Canada)
Ake Bjorck (Linkoping University, Sweden)
Daniel Boley (University of Minnesota, USA)
Richard Brent (Australian National University, Australia)
Da-yong Cai (Tsinghua University, China)
Tony Chan (UCLA, USA)
Walter Gander (ETH Zuerich, Switerzland)
Frank Luk (Rensselaer Polytechnic Institute, USA)
Roy Pike (London University, UK)
Robert Plemmons (Wake Forest University, USA)
Michael Saunders (Stanford University, USA)
Werner Stuetzle (University of Washington, USA)
Ji-gunng Sun (Umea University, Sweden)
Paul Vandooren (U. Catholique de Louvain, Belgium)
Curtis Vogel (Montana State University, USA)

Lester Liu, City University of Hong Kong
Shiu-hong Lui, Hong Kong University of Science & Technology
Tsi-min Shih, Hong Kong Polytechnic University
Tao Tang, Chinese University of Hong Kong
Chong Sze Tong, Hong Kong Baptist University
Wei-min Xue (Chairman), Hong Kong Baptist University
Siu-pang Yun, University of Hong Kong

Raymond Chan (Chinese University of Hong Kong)
Frank Luk (Rensselaer Polytechnic Institute, USA)
Robert Plemmons (Wake Forest University, USA)

Abstracts of contributed papers should be sent by Oct. 15, 1996 to:
Dr. Wei-min Xue
Dept. of Mathematics
Hong Kong Baptist University
224 Waterloo Rd, Kowloon Tong, Hong Kong

Registration form can be obtained from Dr. W.M. Xue (address above)
or via internet at



From: Daniel Marcus <>
Date: Mon, 24 Jun 1996 10:53:36 -0700
Subject: Positions at Lawrence Berkeley National Laboratory

Center for Computational Sciences and Engineering (CCSE)
Lawrence Berkeley National Laboratory
Berkeley, California

The Center for Computational Sciences and Engineering has a
number of positions available for post-doctoral researchers or
visiting scientists. These are full-time, one-year-term appointments
with the possibility of renewal.

The mission of CCSE is to develop and apply advanced computational
methodologies to solve large-scale scientific and engineering
problems. The methodology used by CCSE centers around the
development and use of adaptive high-resolution finite-difference
methods for fluid dynamics and composite grid or embedded
boundary representations of engineering geometries. Application
areas include atmospheric flows, low speed reacting flows, and
compressible flows. The successful candidate will participate in
an on-going research effort in one of the above areas.

There are also positions available for developing software
infrastructure to support our numerical methodology. These include
an opening for someone experienced in numerical linear algebra,
particularly iterative solvers, to extend existing adaptive grid
multigrid libraries, and someone to implement parallel versions
of our methodology for the Cray T3E at NERSC.

All positions require significant programming and technical
interaction with other members of CCSE. The successful applicant
must be able to work with and extend existing software and
develop reliable and readable code. Throughout the project, the
appointee should be able to investigate issues of algorithmic
design as well as validate the resulting software by comparison
with available data. She or he will also be expected to prepare
results for publication in scientific journals and for presentations
tions at national meetings.

Requirements for these positions are:

* working knowledge of C++ and FORTRAN,

* Ph.D. within the last four years in applied mathematics,
engineering, computer science, or related field (for post-doc
positions only)

Familiarity with modeling low Mach number flows a plus. Experience
in parallel computing a plus.

If interested, please contact John Bell at

Center for Computational Sciences and Engineering (CCSE)
Lawrence Berkeley National Laboratory
Berkeley, California

The Center for Computational Sciences and Engineering has a
number of positions available for scientific programmers. These
are full-time, career appointments.

The mission of CCSE is to develop and apply advanced computational
methodologies to solve large-scale scientific and engineering
problems. The methodology used by CCSE centers around the
development and use of adaptive high-resolution finite-difference
methods for fluid dynamics and composite grid or embedded boundary
representations of engineering geometries.

We are seeking candidates to participate in the following projects:

* development of an interface between CAD/CAM descriptions of
engineering geometries and CCSE's fluid dynamic simulation

* development of interfaces between CCSE's fluid dynamics codes
and complex physics packages such as chemical databases for reaction
rates and thermodynamic properties for modeling reacting

* development of data structures and C++ class libraries to
support the implementation of CCSE's adaptive methodology

* development of a parallel processing software layer for C++
libraries that supports adaptive computations in fluid dynamics.

The successful applicant in each case will be part of a team engaged
in implementing and releasing high-performance fluid dynamic simulators
and visualization software. These positions require programming
and technical interaction with other members of CCSE and vendors.

Requirements for these positions are:

* Experience with object-oriented programming and C++

* B.A., B.S., or M.S. in computer science, mathematics or
engineering, or equivalent experience.

Background in scientific programming and algorithm implementation
would be a plus. Experience on Cray supercomputers and high-
performance DEC alpha workstations is a plus.

If interested, please contact John Bell at


From: Alan Craig <>
Date: Mon, 24 Jun 96 16:18:38 BST
Subject: Postdoctoral Position at University of Durham, England

A postdoctoral research position is available for a three-year, EPSRC
funded, collaborative project in the Department of Mathematical
Sciences, University of Durham, England, entitled:

"Bayes Linear Forecasting and Decision-Making for Large-Scale Physical
Systems in the Petroleum Industry"

The objectives of this three-year research project, funded by the UK's
Engineering and Physical Sciences Research Council, are (i) to develop
a Bayes linear approach to forecasting and decision making using
complex, high dimensional models for physical phenomena such as
hydrocarbon reservoirs; (ii) to devise useful prior descriptions for
the input and output uncertainties in such models, synthesising
graphical elicitation tools for expert beliefs, theoretical analysis
and the study of simplified forms for the models; and (iii) to combine
(i) and (ii) to derive improved methods for asset management for
hydrocarbon reservoirs and for decision problems such as leak
detection for pipeline networks, and test these methods in a series of
case studies. The project is in collaboration with Scientific
Software-Intercomp (UK) Ltd, a leading software developer for the oil

This project follows on from a recent EPSRC funded project held by the
investigators which concerned strategies for matching hydrocarbon
reservoir simulator output to actual reservoir production history.

The project involves a combination of statistical, numerical and
computational skills and an ability to develop innovative solutions to
challenging practical problems. Desirable qualities include experience
of Bayesian methodology, modelling of complex stochastic systems and
fluent computing skills. The appointee will be expected to
collaborate closely with the investigators in all areas.

The position is for three years from 1st October 1996, or later by
negotiation, and initial salary will be up to 15986 UK pounds on the
RA(1A) scale. We welcome informal enquiries, which should be addressed
either to Professor Michael Goldstein (e-mail:, tel.: +44-191-374-2365) or to Dr Allan
Seheult (e-mail:, tel.:
+44-191-374-2371). Application forms and further particulars are
available from the Director of Personnel, Old Shire Hall, Durham DH1
3HP, England (e-mail:, fax:
+44-191-374-7253). Please quote reference A582. The closing date for
applications is 19th July 1996.

For more information about the statistics group, the Department of
Mathematical Sciences and about Durham, see the WWW page (URL, which also has
information about the project and a paper outlining a case study for
this problem.


From: D. Sloan <>
Date: Wed, 26 Jun 1996 12:16:41 +0100
Subject: Position at University of Strathclyde


Applications are invited for a four year, fixed-term post as lecturer in
Mathematics to strengthen research and teaching in applied mathematics/numerical
analysis. Preference may be given to candidates with experience in computational
fluid dynamics.

Salary in range: 15,154-26,430 pounds

For application form and further particulars (Ref 27/96) contact the Personnel
Office, University of Strathclyde, Glasgow, G1 1XQ.

Tel: 0141 552 4400 ext 4476

Applications closing date: 9 August 1996


From: SIAM <>
Date: Fri, 28 Jun 96 12:53:56 EST
Subject: Contents, SIAM Scientific Computing

SIAM Journal on Scientific Computing
SEPTEMBER 1996, Volume 17, Number 5

Hybrid Multifluid Algorithms
Smadar Karni

A Parallel Implementation of the P-Version of the Finite Element Method
Yimin Zhu and I. Norman Katz

Multigrid Methods for Symmetric Positive Definite Block Toeplitz Matrices with
Nonnegative Generating Functions
Giuseppe Fiorentino and Stefano Serra

Defect Correction for Convection-Dominated Flow
Wilhelm Heinrichs

A Model Numerical Scheme for the Propagation of Phase Transitions in Solids
Bernardo Cockburn and Huiing Gau

A Two-Dimensional Composite Grid Numerical Model Based on the Reduced System for
Y. F. Xie, G. L. Browning, and G. Chesshire

A Sparse Approximate Inverse Preconditioner for the Conjugate Gradient Method
Michele Benzi, Carl D. Meyer, and Miroslav Tuma

Accuracy of the Discrete Fourier Transform and the Fast Fourier Transform
James C. Schatzman

Computing the Extremal Positive Definite Solutions of a Matrix Equation
Xingzhi Zhan

A Schwarz Alternating Procedure for Singular Perturbation Problems
Marc Garbey

An Investigation of Interior-Point Algorithms for the Linear Transportation
L. Portugal, F. Bastos, J. Judice, J. Paixao, and T. Terlaky

Computation of the Noncentral Gamma Distribution
L. Knusel and B. Bablok

Locating and Computing All the Simple Roots and Extrema of a Function
Dimitris J. Kavvadias and Michael N. Vrahatis

On Weak Residual Error Estimation
Jinn-Liang Liu

Preconditioning Complicated Finite Elements by Simple Finite Elements
Susanne C. Brenner


End of NA Digest