NA Digest Wednesday, April 8, 1998 Volume 98 : Issue 13

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

Submissions for NA Digest:

Mail to na.digest@na-net.ornl.gov.

Information about NA-NET:

Mail to na.help@na-net.ornl.gov.

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

From: Barak Galanti <galanti@dvir.weizmann.ac.il>
Date: Mon, 30 Mar 98 11:34:58 IST
Subject: Eigenvalues of Block Toeplitz Matrices

I am interested in finding the eigenvalues and eigenvectors
of hermitian 5 diagonal block Toeplitz matrix in the following form:


H 0 H+1 H+2 0 .....
H-1 H 0 H+1 H+2
H-2 H-1 H 0 H+1
0 H-2 H-1 H 0
.
.
.

Here Hxx is a block of typical size of 252x252, and the whole matrix
is 21x21 blocks.

I would be very grateful for any help.

Barak Galanti
Department of Chemical Physics,
The Weizmann Institute of Science


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

From: Sithi Vinayakam Muniandy <muniandy@maths.ox.ac.uk>
Date: Tue, 7 Apr 1998 00:13:33 +0100 (BST)
Subject: Pseudo-spectral Code for Navier-Stokes

Dear All,
I'am a graduate student working on wavelet-Galerkin scheme for
incompressible 2D Navier-Stokes equations in streamfunction-vorticity
formulation. I am looking for a pseudo-spectral code for this problem to
compare the results of my model. Any suggestion/source code would be
kindly appreciated. Thanks very much.

Best regards,
Sithi


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

From: Deborah Poulson <poulson@siam.org>
Date: Thu, 02 Apr 98 14:28:55 -0500
Subject: SIAM Classics in Applied Mathematics Series

SIAM Classics in Applied Mathematics Series

Are you frustrated that one of your favorite texts is out of print?
SIAM is looking for suggestions of books to publish in their Classics
in Applied Mathematics series. Send me the title, publisher, and
author(s) of books you'd like to see back on the shelf.


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

From: Deborah Poulson <poulson@siam.org>
Date: Tue, 31 Mar 98 11:17:13 -0500
Subject: Peter John's Book on Statistical Design

SIAM is looking for a copy of Peter John's "Statistical Design and
Analysis of Experiments" for publication in our Classics series. If
you have an extra copy of the book you can part with (we won't be able
to return it), please contact me at the e-mail address above. We will
be happy to give you a few copies of the new edition in exchange.


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

From: Allison Bogardo <bogardo@siam.org>
Date: Mon, 30 Mar 98 13:08:30 -0500
Subject: Andrew Teel Wins SIAM Prize

The first SIAM Activity Group on Control and Systems Theory Prize
will be awarded to Andrew R. Teel, Department of Electrical and
Computer Engineering, University of California, Santa Barbara.

The prize is given to Teel for his fundamental contributions to
the theory of nonlinear control.

The prize will be awarded at the Fourth SIAM Conference on
Control and Its Applications, May 7-9, in Jacksonville, Florida.


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

From: Allison Bogardo <bogardo@siam.org>
Date: Mon, 30 Mar 98 13:09:02 -0500
Subject: Jacques-Louis Lions Wins SIAM Prize

SIAM will present the 1998 W.T. and Idalia Reid Prize to
Jacques-Louis Lions of College de France for his seminal
contributions to the areas of partial differential equations,
distributed parameter control and variational theory.

The award will be presented on Thursday, July 16, at the SIAM
Annual Meeting in Toronto.


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

From: Fred Fritsch <fritsch@kristen.llnl.gov>
Date: Thu, 2 Apr 1998 10:12:42 -0800
Subject: New Area Code for LLNL, SNLL

In case you aren't aware of it, the Tri-Valley part of the San Francisco
East Bay changed from the 510 area code to 925 effective March 14, 1998.
This change affects such communities as Concord, Livermore, Martinez,
Pleasanton, and Walnut Creek.

In particular, you must now use 925 to reach the Lawrence Livermore and
Sandia National Laboratories in Livermore. The new area code becomes
MANDATORY on September 12, 1998, so change your address books NOW.

Fred Fritsch, LLNL


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

From: Beidi Hamma <hamma@ilog.fr>
Date: Fri, 03 Apr 1998 11:52:50 +0200
Subject: Change of Address for Beidi Hamma

Hi,

I have moved from CERFACS to ILOG S.A.
My new address is:

Beidi Hamma
Senior Consultant in Resources Optimization,
ILOG S.A.
9, rue de Verdun
B.P. 85
F - 94253 Gentilly Cedex
FRANCE
T=E9l. : + 33 1 49 08 36 91- Fax : + 33 1 49 08 35 10
Email : hamma@ilog.fr - URL : http://www.ilog.fr

cheers
Beidi S. HAMMA
|

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

From: Hans Mittelmann <beck@plato.la.asu.edu>
Date: Fri, 3 Apr 1998 10:21:53 -0700
Subject: LP/QP Solver Binaries

Unix-binaries for the LP/QP-solver BPMPD (author: Cs. Meszaros) can
be downloaded from:

ftp://plato.la.asu.edu/pub/other_software/bpmpd_binaries/

Comparisons of this code with other solvers are available at:

http://plato.la.asu.edu/bench.html

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

From: S. S. Sritharan <ravi@pams.ncsu.edu>
Date: Fri, 3 Apr 1998 10:56:45 -0500 (EST)
Subject: New Book on Optimal Control of Viscous Flows

NEW BOOK on the theory & numerical methods in FLOW CONTROL:

OPTIMAL CONTROL OF VISCOUS FLOWS
Editor: S. S. SRITHARAN

AUTHORS:
S. S. SRITHARAN, V. BARBU, M. GUNZBURGER, L. S. HOU & T. SVOBODNY
A. V. FURSIKOV, E. CASAS, R. TEMAM, Y. R. OU, S. S. RAVINDRAN

Society of Industrial and Applied Mathematics(SIAM)
Publications, Philadelphia
Softbound, ISBN 0-89871-406-0
February 1998, 200 pages

To order: toll-free 1-800-447-SIAM in USA
1-215-382-9000 outside USA
1-215-386-7999 FAX
Email: service@siam.org
Net: http://www.siam.org


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

From: Larry Nazareth <nazareth@amath.washington.edu>
Date: Mon, 6 Apr 1998 07:19:42 -0700
Subject: New Book on Optimization and Decision Support

NEW BOOK ANNOUNCEMENT

"The D_LP Optimization Model and Decision Support System"
by J.L. Nazareth; softcover; 194pgs; ISBN: 0-9657375-0-0;
published by Computational Decision Support Systems (CDSS);
US$ 19.00 plus postage and handling.

This book develops a new approach to computational optimization and
decision support for resource planning problems that arise, typically,
within the natural resource sciences and the disciplines of operations
research and operational engineering. It is based on a synthesis of
techniques of dynamic programming and linear programming---hence the
acronym D_LP---at both the modeling and the algorithmic levels. A basic
decision support system called the D_LP nucleus, which embodies this
new approach in a practical way, is described in detail. This nucleus
provides a foundation and staging ground for the hierarchical development
of D_LP models and solution techniques in a wide variety of application
areas. The D_LP approach has far-ranging implications and can be extended
in a variety of ways, as discussed, in particular, in Chapters 5, 6 and 10.

Main chapter headings and page numbers:

Part I: The D_LP Nucleus
Chapter 1: Two Simple Motivating Examples...3
Chapter 2: The D_LP Model...23
Chapter 3: D_LP Input Format Language...39
Chapter 4: D_LP Output Format...54
Part II: Usage
Chapter 5: Philosophy...65
Chapter 6: Modeling Issues and Applications...83
Part III: Techniques
Chapter 7: The D_LP Mathematical Model...133
Chapter 8: The D_LP Algorithm...143
Chapter 9: Implementation of the D_LP Nucleus...153
Chapter 10: Refinements and Extensions...169
Bibliography...175
About the Author...181

The above book is an inexpensive preprint of a monograph ``D_LP and
Extensions'', which will be published towards the end of this year under
an established banner.

FOR AN E-COPY OF THE COMPLETE PREFACE, TABLE OF CONTENTS AND AN ORDER FORM:
please send a brief request, e.g. `send more info' (on the subject line or
in the message body) to the e-address: cdss@halcyon.com


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

From: Robert van de Geijn <rvdg@cs.utexas.edu>
Date: Sat, 4 Apr 1998 07:44:56 -0600
Subject: PLAPACK Correction

In recent NA Digest submissions, we reported performance numbers for
PLAPACK vs. ScaLAPACK on our Cray T3E-600. In compiling numbers for
ScaLAPACK, we measured performance of the ScaLAPACK library that is
part of the Cray scientific library. We were not aware that the Cray
scientific library is compiled with "streams" turned off. The default
for our system is to have streams turned on for both compilation and
execution, and thus PLAPACK was compiled and executed with streams
turned on.

Corrected performance numbers (for the LU factorization based
solvers) are given below. Performance numbers for the Cholesky
factorization must be adjusted similarly.

Cray T3E-600 (300 MHz) 16 nodes

PLAPACK ScaLAPACK ScaLAPACK (Empirical)
size streams on Guide streams off streams on

2000 66 101 91 110
5000 174 168 169 215
7500 228 201 202 259
10000 268 209 225 285

Version information:

PLAPACK Release 1.1
ScaLAPACK as part of Cray Scientific Library
Standard C compiler Cray Standard C Version
Cray Assembler CAM Version 2.3.0.0
f90 Cray CF90
CrayLibs Version 3.0.0.0
CrayTools Version 3.0.0.0
Compiler Options -O3

Naturally, both packages are continuously being improved and the
performance numbers reported above will be out of date by the next
releases. For up-to-date performance information for PLAPACK see
http://www.cs.utexas.edu/users/plapack

Robert A. van de Geijn


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

From: Andrea Gomes Campos <campos@ifsc.sc.usp.br>
Date: Mon, 30 Mar 1998 08:51:28 -0300
Subject: Computer Graphics, Image Processing and Vision

SECOND Call for Papers - SIBGRAPI'98

You are invited to submit contributions and participate
in SIBGRAPI'98, the 1998 International Symposium on
Computer Graphics, Image Processing and Vision. The 11th
edition of the SIBGRAPI, the most prestigious Brazilian
series of meetings in related areas, now in its first
international version, SIBGRAPI'98 will take place at
IMPA (Institute of Pure and Applied Mathematics), in
Rio de Janeiro, Brazil, in October 1998. The Proceedings
of SIBGRAPI'98 are expected to be published by the IEEE
Computer Society.
Two basic categories of paper submissions are being
considered: full papers (8 pages) and short papers
(4 pages).
While full papers should report original and reasonably
mature work, short papers may describe ongoing work,
applications, and undergraduate research.
More informations about the Symposium and the instructions
to authors are available from SIBGRAPI'98 homepage, to be
found at:
http://www.ifqsc.sc.usp.br/visao/sib98/sib98.htm

IMPORTANT DATES:

24th Apr. 1998 - Full and Short Papers submitted to
Program Committee by every author;
10th May 1998 - Panel proposals sent to Program Committee;
5th June 1998 - Assessment results sent to authors;
10th June 1998 - Eventual comments by authors sent to
the Program Committee by every author;
26th June 1998 - Final results regarding the acceptance
of submissions;
6th July 1998 - Final version of papers and communications
sent to Program Committee.
20-23rd Oct. 1998 - SIBGRAPI'98


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

From: C. Roos <c.roos@twi.tudelft.nl>
Date: Thu, 02 Apr 1998 09:54:53 +0200
Subject: International Conference on Optimization

Third International Symposium on
High Performance Optimization Techniques (HPOPT'98)
Wednesday, June 17 to Friday, June 20, 1998
World Trade Center, Rotterdam - The Netherlands
including a one-day tutorial on
semidefinite optimization

Aim of the symposium
HPOPT'98 takes place in the context of the Dutch research project
`High Performance Methods for Mathematical Optimization'.
In the project we focus on duality, algorithms, complexity, sensitivity and
numerical aspects and we strive to touch each of these aspects in the workshop.

The goal of the symposium is twofold.
The first day (Wednesday) of the workshop consists of 5 tutorials on
semidefinite optimization (SDO). This day is meant for researchers and/or
Ph.D students with a background in applied mathematics, operations research,
or quantitative economics.
During the remaining two days, the goal is to bring together researchers
to exchange ideas and research plans and to discuss future developments in the
field. On the second and third day there are 13 invited speakers; there is
still room for contributed papers. Submisssions are possible till April 15.

Course lecturers
F. Alizadeh (Rutgers University, New Brunswick, New Jersey, USA)
E. de Klerk (Delft University of Technology, NL)
F. Rendl (University of Graz, Graz, Austria)
L. Vandenberghe (Univ. of California, Los Angeles, USA)
S. Zhang (Erasmus University, Rotterdam, NL)

Main speakers
E.D. Andersen (Odense University, Odense, Denmark, visiting TU Delft)
C. Helmberg (Konrad Zuse Zentrum fuer Informationstechnik, Berlin, Germany)
J. Mitchell (Rensselaer Polytechnic Institute, Troy, USA, visiting TU Delft)
A. Nemirovskii (Technion, Haifa, visiting TU Delft)
M. Overton (Courant Institue, New York University, USA)
M. Ramana (University of Florida, Gainesville, USA)
M. Saunders (Stanford University, Stanford, USA)
M.J. Todd (Cornell University, Ithaca, NY, USA)
J.-Ph. Vial (University of Geneve, Switserland)
Y. Ye (University of Iowa, Iowa City, USA)
J. Zowe (University of Erlangen/Nurnberg, Germany)

Program Committee
Kees Roos and Tamas Terlaky, TU Delft
Jan Karel Lenstra, TU Eindhoven
Jan Brinkhuis, Erasmus University
Henk van der Vorst, University of Utrecht

For more information, registration and submission of contributed papers
see the web page http://ssor.twi.tudelft.nl/~hpopt/


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

From: Gil Strang <gs@math.mit.edu>
Date: Fri, 3 Apr 1998 13:01:36 -0500 (EST)
Subject: Workshop Course on Wavelets and Filter Banks

WORKSHOP COURSE ON WAVELETS AND FILTER BANKS

taught by Gilbert Strang (MIT) and Truong Nguyen (Boston University)

Wednesday-Thursday-Friday **May 20-21-22, 1998**

at Wellesley College ( a beautiful campus outside Boston )

TEXT: Participants will receive the new textbook (revised edition in 1997)

WAVELETS AND FILTER BANKS by Strang and Nguyen
Wellesley-Cambridge Press, Box 812060, Wellesley MA 02181

This text is already in class use in many EE and mathematics departments.
It was chosen to accompany MATLAB's Wavelet Toolbox, which will be the
simulation software at the Wavelet Workshop. It can be ordered by email.

We also have a new IMAGE CODER by Truong Nguyen (1997)
This will be used at the Workshop and will be provided to participants.
These four key areas will be developed in detail:

1. Analysis of Filter Banks and Wavelets
2. Design Methods
**3. Applications (from Lecturers and Participants)
4. Hands-on Experience with Software (including image coding)

The goal of the Workshop is to be as useful as possible to all
participants. ** Please request information by an email message
with subject Workshop to the organizer

Gilbert Strang: gs@math.mit.edu

We will reply about the program and tuition cost and housing.
The tuition includes the textbook and software. It will be the same as
in 1995, 1996, and 1997 (San Jose, Tampa, San Diego, and Fairfax Workshops).
It is reduced by 50% for graduate students. We are very glad to
answer all questions by email. Our Web sites are

http://saigon.ece.wisc.edu/~waveweb/QMF.html http://www-math.mit.edu/~gs

Gilbert Strang Room 2-240 MIT Cambridge MA 02139

617 253 4383 fax 617 253 4358 gs@math.mit.edu


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

From: Tibor Csendes <scan98@inf.u-szeged.hu>
Date: Sat, 4 Apr 98 11:53 MET
Subject: Symposium on Validated Numerics

Second Announcement and Call for Papers
SCAN-98
IMACS/GAMM International Symposium on
Scientific Computing, Computer Arithmetic, and Validated Numerics
September 22 - 25, 1998
Budapest, Hungary

The full version of the Second Announcement and Call for Papers
together with a sample LaTeX file for the extended abtract and the
preliminary registration form can be found in the web site given below.

Please send an extended abstract of 1-2 pages till April 30, 1998,
preferably using the enclosed LaTeX sample file by e-mail to
scan98@inf.u-szeged.hu. All received abstracts will be confirmed
by an e-mail. If you have any questions, please consult the web site
of the conference or contact the organizers.

Communication:

http://www.inf.u-szeged.hu/~scan98
e-mail: scan98@inf.u-szeged.hu (preferable)
fax: +36 62 312 292
phone: +36 62 454 305
snail mail: SCAN98 c/o Tibor Csendes, H-6701 Szeged, Pf. 652, Hungary


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

From: Jerome Kreuser <jkreuser@worldbank.org>
Date: Sun, 05 Apr 1998 22:20:37 +0000 (GMT)
Subject: Mathematical Programming Modeling Workshop

RAMLAB/GAMS Modeling Workshop
Mathematical Programming Modeling
in Finance and Projects
Using the General Algebraic Modeling System
with a Special Emphasis on Stochastic Programming Modeling

Sponsored by the George Washington University
Research and Applications on Modeling Laboratory, RAMLAB,
Department of Operations Research, and the SEAS Computing Facility.
May 11-14, 1998 in Washington, D.C.

For details see:
http://www.seas.gwu.edu/seas/projects/ramlab

Or email to:

ramlab@seas.gwu.edu

This four-day workshop covers the material in a 1-2 semester graduate course
in applied modeling in finance and projects plus current research in asset
and liability modeling using dynamic stochastic programming. This research
was undertaken at the World Bank for asset and liability modeling for
central banks and ministries of finance in developing countries.

Much of the workshop is patterned after the course taught regularly in the
Operations Research Department at George Washington University. The workshop
covers theory, algorithms, applications, problems, the modeling process,
and modeling tools. GAMS is learned by studying applications in a modeling
laboratory setting, RAMLAB, intermingling exercises with lectures.

REGISTER TODAY at the above URL.


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

From: Tianruo Yang <tiaya@ida.liu.se>
Date: Mon, 6 Apr 1998 10:55:21 +0200
Subject: Conference in Bulgaria on Numerical Methods and Applications

IV INTERNATIONAL CONFERENCE ON NUMERICAL METHODS AND APPLICATIONS
Organized by the Bulgarian Academy of Sciences in cooperation with SIAM

Mini-symposium: Parallel and Distributed Numerical Computing with Applications

CALL FOR PAPERS

The above mini-symposium is organized during the 4th International
Conference on Numerical Methods and Applications (NMA-98)
which will be held in Sofia from 19 to 23 August, 1998.

Parallel and distributed scientific and engineering computing
has become a key technology which will play an important part in
determining, or at least shaping, future Research and development
activities in many academic and industrial branches.
This symposium is to bring together computer scientists,
numerical analysts and researchers and to provide means for
presenting both results and experience of research and particularly
informal communication of research in progress, as well as to
encourage discussion and interchange of the ideas in the area of
parallel and distributed computing for numerical and optimization
problems.

Among the main topics (are not limited) are:
1. development of advanced parallel and distributed numerical methods,
2. parallel and distributed computing techniques and codes,
3. applications to numerical fluid mechanics and material sciences,
4. applications to signal and image processing, dynamic systems,
semiconductor technology, and electronic circuits and systems
design etc.

Authors should send three copies of an extended abstract to the
min-symposium organizers. Abstracts can also be sent as plain text
files via electronic mail. Contributions will be reviewed for
relevance and technical contents on basis of the extended abstract.
The selected papers will be organized as a special issue of Journal of
Parallel and Distributed Computing Practice.

Further information about the conference proceedings and
registration fee can be found by responding to the e-mail address:
nma98@math.acad.bg, or check either of our WWW-pages:
http://www.math.acad.bg/~nma98/
http://orca.st.usm.edu/marcin/mp/cfp/sofia.html
or contact the conference organizer:
NMA'98, c/o Dr. Oleg Iliev
Institute of Mathematics and Informatics
Bulgarian Academy of Sciences
Acad. G. Bonchev Str., Bl.8, 1113 Sofia, BULGARIA
Fax-No. (++359 2) 971 36 49

Deadline Schedule:
Extended Abstract Due: 30th of March, 1998
Notification of Acceptance: 30th of April, 1998

Mini-symposium organizers:
Tianruo Yang
Department of Computer and Information Science
Link=F6ping University, 581 83 Link=F6ping, Sweden
tiaya@ida.liu.se

Hai-xiang Lin
Department of Technical Mathematics and Computer Science
Delft University of Technology
P.O. Box 356, 2600 AJ Delft, The Netherlands
h.x.lin@twi.tudelft.nl


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

From: Trini Flores <flores@siam.org>
Date: Tue, 07 Apr 98 10:27:04 -0500
Subject: SIAM Workshop on Computer-Aided Design

SIAM Workshop on Mathematical Foundations for Features in
Computer-Aided Design, Engineering and Manufacturing
October 22-23, 1998
Somerset Inn
Troy, Michigan

Deadline for submission of minisymposium proposals and one-page
contributed abstracts is APRIL 15, 1998.

For more information about the workshop and to obtain instructions on
how to submit abstracts, electronically, visit:
http://www.siam.org/meetings/cd98/cd98home.htm


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

From: Holly Hirst <hph@math.appstate.edu>
Date: Tue, 7 Apr 1998 16:18:18 -0400
Subject: UFE Workshop Announcement

UFE Workshop: Shodor Computational Science Institute

Applications are being accepted for the Shodor Computational Science
Institute (SCSI), a series of workshops designed to introduce the
use of modeling in the undergraduate mathematics, science, and
computer science curriculum. The SCSI Project is designed
enable teams of faculty at small-to-medium sized institutions to work
together to use technology, modeling and the tools of computational
science in their classrooms.

Two workshops will be held during June 1998 (and repeated during the
summer of 1999) in the Leroy Walker Complex on the campus of North
Carolina Central University, located in Durham, North Carolina.
Participants may choose to enroll in either workshop or both, in either
the same or successive summers.

The first workshop is designed to introduce faculty to modeling and
the basics of computational science. Participants will learn how to
locate resources, how to assess the value of those resources, and how
to adapt those resources to their classes. Faculty will have the
opportunity to learn about moving existing materials and simulations
to the web.

This more advanced workshop is designed to enable faculty to develop
and refine their own materials and interdisciplanary projects. Attendees
should be graduates of the introductory workshop, a previous modeling
workshop, or demonstrate sufficient experience with modeling
and simulation environments. Emphasis will be placed on development or significant adaptation of materials to be used in the classroom.

All local room and board expenses will be covered. Faculty participants
will receive a stipend of $500 per workshop. In addition, each team will
receive a software allowance of $750.

For more information and to apply, see: http://www.shodor.org/scsi


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

From: Tom Fairgrieve <tfairgri@scs.Ryerson.CA>
Date: Tue, 7 Apr 1998 17:23:08 -0400
Subject: Southern Ontario Numerical Analysis Day

The Sixteenth Annual Southern Ontario Numerical Analysis Day
Friday, 8 May 1998
Ryerson Polytechnic University

The Sixteenth Annual Southern Ontario Numerical Analysis Day will be
held on Friday, 8 May 1998, at Ryerson Polytechnic University in
downtown Toronto. We expect that the meeting will begin at about
10:00 a.m. and end at about 5:00 p.m. The schedule for the meeting is
in preparation.

The distinguished speaker for the day is Professor Luca Dieci from the
School of Mathematics, Georgia Institute of Technology. His talk is
titled "Orthonormal integrators with applications". In addition,
Luca will be giving a NA seminar at the University of Toronto earlier
in the week. The seminar title is "On smooth factorization of matrices
with applications".

There is no registration fee for the meeting, but we request that
participants register by 1 May 1998 so that we will know how many people
to expect. To register for the meeting, send email to

Tom Fairgrieve
<tfairgri@scs.ryerson.ca>

Information on NA Day will appear at the URL
http://www.scs.ryerson.ca/tfairgri/naday98
when available.


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

From: Prabir Daripa <Prabir.Daripa@math.tamu.edu>
Date: Mon, 30 Mar 1998 21:28:15 -0600 (CST)
Subject: Postdoctoral Position at Texas A&M University

Postdoctoral position in computation area at Texas A&M University

Applications are invited for a postdoctoral position with Dr. Prabir
Daripa in the department of mathematics at Texas A&M University.
The work will involve development and application of fast algorithms
to solving problems in fluid mechanics, wave propagation and grid
generation.
These algorithms will be implemented on serial as well as parallel
machines.
The applicant must have understanding of integral equation methods
for solving partial differential equations and computational fluid
dynamics.
Strong proficiency in programming using fortran and C in a Unix
environment is a must.

The position is open immediately and is for two years with one course
teaching load or just for one year with full time research.
Appointment may be extended further depending upon performance during first
year.
A recent Ph.D. in applied mathematics or computational science or
engineering is required.
Curriculum vitae and names of three references should be sent either by
e-mail at daripa@math.tamu.edu or by surface mail at the following address.

Prabir Daripa
Department of Mathematics
Texas A&M University
College Station
Texas 77843-3368

Phone (409) 845-1204
Fax (409) 862-4190

Texas A&M University is an Equal Opportunity Employer.


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

From: Thibauld Jongen <Thibauld.Jongen@unilever.com>
Date: 31 Mar 1998 16:47:52 +0100
Subject: Postdoctoral Position at Unilever Research

POSTDOCTORAL RESEARCH POSITION IN THE MODELING OF COMPLEX ADAPTATIVE
SYSTEMS

The Process Principles Unit of Unilever Research, Vlaardingen, The
Netherlands, is looking for a postdoctoral fellow to conduct research
on the modeling of complex adaptive system applied to micro-structure
formation, such as crystal network formation, aggregation, etc. One
characteristic of these processes is that the relevant phenomena occur
on several scales. For example, to model crystallization, it is
necessary to account for molecular behavior at the microscopic level,
the formation and growth of crystal aggregates at the mesoscopic level,
and the overall flow rheology and heat transfer at the macroscopic
level.

An emerging technique in Complexity Science, which is able to take
into account the coupling between the phenomena on different scales,
is the agent based modeling. With this technique, the behavior of many
individual agents (such as molecules) interacting with each other and
with a dynamically changing environment is modeled. The micro-
structure formation process emerges in a highly nonlinear manner from
the behavior of the individual agents, and this collective behavior is
integrated to a different scale of resolution.

The aim of the position is to combine the latest developments in agent
based modeling with state-of-the-art numerical simulation techniques
in order to perform pioneering work in micro-structure formation and,
in a broader context, to assess the potential of these promising
techniques. This is an excellent opportunity to perform world class
research on a subject of major importance for the future. As part of
the project, collaboration with the Santa Fe Institute, USA, one of
the leading institutions in Complexity Science, is envisioned.

Unilever Research, Vlaardingen, is one of the three research
laboratories of Unilever in Europe. Some thousand researchers work in
projects on the innovation of products and processes for the benefit
of Unilever companies. With 300.000 employees in 90 countries all over
the world, Unilever is one of the major Foods & Home and Personal Care
Products companies in the world.

Candidates are expected to hold a Ph.D. in engineering or physics.
Experience in some of the following areas is highly desirable:
mathematical modeling, computational techniques, fluid mechanics, heat
and mass transfer, thermodynamics, and object oriented programming
(C++, Objective C). The successful applicant will be able to work
independently, at the highest technical level, with a broader view on
science, and technology in general.

The term for the postdoctoral position is two years, starting as soon
as possible.

For more information about the position, contact: Dr. Thibauld Jongen
(thibauld.jongen@unilever.com), phone: (+31) 10-460.52.10

To apply:
Via e-mail: send a letter to danielle.hameleers@unilever.com. Please
attach your CV and a list of publications, preferably in Word format.
Via conventional mail: send your CV and a list of publications to:
Dr. Danielle Hameleers
Unilever Research Laboratory
P.O. Box 114
3130 AC Vlaardingen
The Netherlands


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From: Dave Bond <dbond@STMARYS.CA>
Date: Tue, 07 Apr 1998 13:22:01 -0300
Subject: Faculty Positions at Saint Mary's University

SAINT MARY'S UNIVERSITY
Mathematics & Computing Science

The Department of Mathematics and Computing Science at Saint Mary's
University invites applications for two tenure-track positions in
Computing Science at the rank of Assistant Professor to begin September
1, 1998 (subject to final budgetary approval). For one of the
positions, exceptional candidates at the Associate level may also be
considered. The successful candidates will have a PhD in Computer
Sciences or a closely related discipline, a demonstrated potential for
and a strong commitment to research, as well as an ability to teach a
variety of courses in Computing Science at the undergraduate level.

The Senate of Saint Mary's University has recently approved a new
undergraduate major in Computing Science for introduction in September, 1998.

Applications, including a curriculum vitae, a summary of teaching
experience, and the names and addresses of at least three (3) referees
should be sent directly to:

Department of Mathematics and Computing Science
Attention: Chairperson of Search Committee
Saint Mary's, University
Halifax, Nova Scotia B3H 3C3 or by fax: (902) 420-5141
email: mathcs.search@stmarys.ca

Applications will be reviewed as soon as possible after being received,
and applications will continue to be received until both positions are
filled.

This advertisement is directed to Canadian citizens and permanent residents.
Saint Mary's University is committed to the principles of Employment Equity.
Visit our website http://www.stmarys.ca.


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

From: E. B. Saff <esaff@tarski.math.usf.edu>
Date: Wed, 1 Apr 1998 17:40:21 -0600 (CST)
Subject: Contents, Constructive Approximation

CONSTRUCTIVE APPROXIMATION
CONTENTS
Volume 14 Number 3 1998

G.A. Dzyubenko, J. Gilewicz, and I.A. Shevchuk
Piecewise Monotone Pointwise Approximation, pp. 311-348

K. Daoudi, J. Levy Vehel, and Y. Meyer
Construction of Continuous Functions with Prescribed Local
Regularity , pp. 349-385

P.M. Soardi
Holder Regularity of Compactly Supported p-Wavelets: p=3,4,5,
pp. 387-399

D. Khavison, F. Perez-Gonzalez, and H.S. Shapiro
Approximation in L^1 -Norm by Elements of a Uniform Algebra,
pp. 401-410

C. de Boor, R.A. DeVore, and A. Ron
Approximation Orders of FSI Spaces in L_2 (R^d), pp. 411-427

M.J. Johnson
A Bound of the Approximation Order of Surface Splines, pp. 429-438

Yang Chen and M.E.H. Ismail
Some Indeterminate Moment Problems and Freud-Like Weights,
pp. 439-458

M. Felten
Direct and Inverse Estimates for Bernstein Polynomials,
pp. 459-468


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End of NA Digest

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