NA Digest Monday, March 9, 1998 Volume 98 : Issue 09

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: Paul Saylor <>
Date: Fri, 6 Mar 1998 14:41:26 -0600 (CST)
Subject: Golub Establishes Award at Urbana

Barbara Morris and Gene Golub were guests of the University of Illinois
Urbana-Champaign on Monday and Tuesday of this week. Gene gave a talk on
Tuesday afternoon, March 3, on ``Scientific Computation and Cyclic
Reduction.'' That evening, he presented awards at a banquet to the first
recipients of the Hohn-Nash awards. Gene established the award in 1997 to
honor Professors Franz Hohn and John Purcell Nash, members of the faculty
when Gene was a student in Urbana.

Steve Lee and Paul Saylor


From: Lonny Thompson <>
Date: Fri, 6 Mar 1998 11:05:00 -0500
Subject: Mathieu and Spheroidal Wave Functions

I am looking for Fortran routines
to generate Mathieu and Prolate Spheriodal Wave Functions
which arise when solving the wave/helmholtz equation in
elliptical and spheroidal coordinates respectively.

The separation of the scalar Helmholtz equation in
elliptical/spheroidal coordinates
results in mathieu/spheroidal wave functions.

I would be very grateful to get information about
any existing FORTRAN routines for evaluating the Mathieu "radial" & "angle"
functions and prolate spheroidal "radial" & "angle" functions.


From: Annie Cuyt <>
Date: Mon, 9 Mar 1998 14:55:09 +0100 (MET)
Subject: Polynomials with Random Coefficients

Can anyone help with the following problem in the area of random matrices?

We have r_i uniformly distributed in [-1,1] and compute from it the values
d_i = r_i-2r_{i-1}+r_{i-2} which are then `bell-shaped' distributed:

\phi(d) = x^2/32 + x/4 + 1/2 -4 <= x <= -2
-x^2/32 + 1/4 -2 <= x <= 2
x^2/32 - x/4 + 1/2 2 <= x <= 4

We want to study the monic polynomial

| 1 ... z^{n-1}|
| d_{2n-1} ... d_n |
D_{n-1}(z) = | ... | / (coefficient of z^{n-1})
| ... |
| d_{n+1} ... d_2 |

Numerical evidence suggests that the coefficients in the above polynomial
follow a Gaussian-like distribution with mean value 1, in other words that
statistically the polynomials D_{n-1}(z) and 1+...+z^{n-1} are `close'.
Is anything more specific known? We also expect the variance to get smaller
as n becomes larger.

Thanks a lot in advance.

Annie CUYT
Dept Mathematics & Computer Science
University of Antwerp (UIA)
Universiteitsplein 1
B-2610 Wilrijk-Antwerp (Belgium)


From: Ladislav Jirsa <>
Date: Mon, 9 Mar 1998 15:54:29 +0100 (MET)
Subject: Approximation of Polynomial-exponential Expression

Dear colleagues!

I have a function
p(B,Z|b,z,n,m) \propto B^b e^{-nB} (B+Z)^z e^{-m(B+Z)}.

I would like to
1) integrate it over $B$ and use it as univariate function of $Z$,
2) multiply it by $Z^k$, where $k=0,1,2$ and integrate over $B$ and $Z$.

I am searching for suitable approximation that would lead to 'easy'
evaluation (without polynomes of degree $z$ and high factorials; powers
of $z$ and exponentials are acceptable) in both the cases 1) and 2). The
considered magnitudes are:
-- $m$, $n$ are constant integer numbers of magnitude 10 -- 100,
-- $b$ is constant integer of order $10^2$,
-- a) $z$ is constant integer of the same order as $b$ or
b) $z$ is constant integer of order $10^4$ and higher
-- in case 1) the value of variable $Z$ can be arbitrary non-negative.

There can be also several approximations and each of them would cover some
particular case mentioned above. I will be grateful for any tip or advice.

What is it?
It is Bayesian solution of radioactive source intensity $Z$ estimate on a
radiation background $B$. The function mentioned above is non-normalized
probability density function of $B$ and $Z$.
-- $b$ is total count of particles coming from the background during $n$
seconds; for each second the counts are Poisson distributed with
mean value $B$,
-- $z$ is total count of particles coming from both the source and the
background during $m$ seconds; for each second the counts are
Poisson distributed with mean value $B+Z$.
The aim is to find first two moments of $p(Z|...)$ and/or desired
credibility interval of $Z$ occurence.

Best regards

Ladislav Jirsa
Institute of Information Theory and Automation (UTIA AV CR)
Academy of Sciences of Czech Republic
Pod vodarenskou vezi 4
182 08 Praha 8
Czech Republic
tel. +420 -2 66 05 23 02


From: Richard Brent <>
Date: Mon, 9 Mar 1998 14:08:34 +1100 (EST)
Subject: Change of Address for Richard Brent

I am moving to Oxford about March 24.
My new address will be:

Prof Richard P. Brent
Oxford University Computing Laboratory
Wolfson Building, Parks Road
Oxford, OX1 3QD

Phone +44-1865-283504
FAX +44-1865-273839


From: Jos Maubach <>
Date: Thu, 05 Mar 1998 12:26:29 +0100
Subject: Change of Address for Jos Maubach

As of February 1998, I have accepted a position at the Technical
University of Eindhoven at Eindhoven, in The Netherlands. My
new professional address and related data are:

Dr. Joseph M. Maubach
Technical University of Eindhoven
Faculty of Mathematics and Computer Science
Department of Scientific Computing
HG 8.32 -- Den Dolech 2
Postbus 513
NL-5600 MB Eindhoven
The Netherlands

Telephone: +31-40-247-4358 (office)
Tel.: +31-40-247-2753 (secr. Annemeta Overstegen)
Fax: +31-40-244-2489


From: Patrick Rieme <>
Date: Mon, 9 Mar 1998 14:30:10 +0100
Subject: New Book, Introduction a L'Analyse Numerique

We are a Swiss academic publisher located at the Swiss Federal School of
Technology (Lausanne). We have just published

professor and lecturer assistant at the Swiss Federal School of Technology

This book is in french and we suppose it could be of interest for all the
french-speaking Na-Net readers.

Additional information is available at:

Patrick Rieme
Head of Promotion


From: Robert van de Geijn <>
Date: Thu, 5 Mar 1998 13:33:40 -0600
Subject: Parallel Linear Algebra Package General Solver Available

Parallel Linear Algebra Package General Solver Available

During the last two years the PLAPACK project at UT-Austin has
developed an MPI based Parallel Linear Algebra Package (PLAPACK)
designed to provide a user friendly infrastructure for building
parallel dense linear algebra libraries. Now that this infrastructure
has stabilized, we have started developing libraries. The first
solver available, PLA_Gesv, solves general linear systems.

PLAPACK provides a high level abstraction for coding dense linear
algebra algorithms. It is often believed that such a high level
abstraction comes at the price of lower performance. We are happy to
report that while this is temporarily true for smaller problem sizes
(where the fact that we have not yet optimized the infrastructure is
still noticeable), the higher level of abstraction allows for more
sophisticated algorithms to be implemented, which attain higher
performance for larger problem sizes.

The following performance comparison between PLAPACK and the
equivalent ScaLAPACK routine on a 16 node Cray T3E-600
(300 Mhz) demonstrates this:

Performance of dense linear solve
(in MFLOPS/sec/processor)

2000 66 101
5000 174 168
7500 228 201
10000 268 209

The ScaLAPACK performance numbers were derived from those reported in
the ScaLAPACK Users' Guide. We conducted our own experiments on the
T3E used to collect the PLAPACK numbers and found the ScaLAPACK
numbers to be representative.

More information:

The PLAPACK Users' Guide is available from The MIT Press:
Robert van de Geijn,
"Using PLAPACK: Parallel Linear Algebra Package",
The MIT Press, 1997

Greg Morrow and Robert van de Geijn
for the PLAPACK team


From: Allison Bogardo <>
Date: Wed, 04 Mar 98 08:58:18 -0500
Subject: SIAM Student Paper Prize


SIAM Student Paper Prizes

The annual SIAM Student Paper Prizes will be awarded during the
1998 SIAM Annual Meeting, July 13-17, at the University of

If you are a student or know of a student who would like to take
part in the competition, here are the details:

The authors of the three best papers in applied and computational
mathematics written by students and submitted to SIAM will
present their papers at the meeting and will receive a $750 cash
prize as well as gratis registration for the meeting. The
winners will be awarded calligraphed certificates at a special
prize ceremony at the meeting. Papers must be singly authored
and not previously published or submitted for publication to be
eligible for consideration. To qualify, authors must be students
in good standing who have not received their PhDs at the time of

In submitting their work for publication, authors are asked to
consider SIAM journals. However, student paper prize winners are
not guaranteed publication in any SIAM journal; all papers
submitted to SIAM journals are subject to the same refereeing
process and standards.

Submissions must be received in the SIAM office on or before
March 15, 1998.

Submissions, which must be in English, can be sent by regular
mail or fax. Each submission must include (1) an extended
abstract NOT LONGER THAN 5 PAGES (including bibliography); (2)
the complete paper, which will be used solely for clarification
of any questions; (3) a statement by the student's faculty
advisor that the paper has been prepared by the author indicated
and that the author is a student in good standing; (4) a letter
by the student's faculty advisor describing and evaluating the
paper's contribution; and (5) a short biography of the student.

Submissions will be judged on originality, significance, and
quality of exposition.

The winners will be notified by June 1, 1998.

Please direct your submission and any questions you may have to
A. Bogardo at SIAM, 3600 University City Science Center,
Philadelphia, PA 19104-2688;telephone (215) 382-9800; e-mail to; fax to (215) 386-7999.


From: Barbara Bertram <>
Date: Wed, 4 Mar 1998 09:41:50 -0500 (EST)
Subject: Conference on Integral Methods in Science and Engineering

AUGUST 10 - 13, 1998
Funded by NSF DMS.

Invited Speakers: Gregory Beylkin, Uni. of Colorado; Archie G. Gibson,
Uni. of New Mexico; Glenn R. Ierley, Scripps Institute; Sangtae Kim,
Uni. of Wisconsin; M. Zuhair Nashed, Uni. of Delaware; Jean Claude
Nedelec, Ecole Polytechnique; Brian D. Sleeman, Uni. of Leeds.

Topics: Analytic and numerical Methods; Hybrid approaches; Ordinary &
Partial differential equations; Population dynamics; Boundary element
methods; Image and signal processing; Wavelets & multi-resolution
analysis; Rheology; Quantum mechanical physics; Integral equations;
Finite element methods; Vortex methods; Computational fluid dynamics;
and Inverse problems.

NSF DMS has provided registration/travel grants
for graduate students and junior researchers.

Registration Deadline: May 31, 1998: US$150
Abstract Deadline: April 30, 1998.

Further information is available at
Conference proceedings are published in
Pitman Research Notes in Mathematics.

Barbara Bertram, IMSE98, Math,
Michigan Technological University., 1400 Townsend Dr.,
Houghton, MI 49931-1295, USA
Tel: 906-487-2211, Fax: 906-487-3133, E-Mail:


From: Christopher Freitas <>
Date: Wed, 4 Mar 98 11:00:03 CST
Subject: ASME Forum on Parallel Computing Methods

Final CALL FOR PAPERS - Forum on Parallel Computing Methods

The American Society of Mechanical Engineers (ASME) is holding its 1998
International Mechanical Engineering Congress & Exposition (IMECE) on
November 15-20, 1998 in Anaheim, California. As part of this Congress,
the Fluids Engineering Division is organizing a Forum on Parallel Computing
Methods. Papers are solicited on all aspects of parallel computing
methodology, including new and innovative methods. Papers on parallel
strategies for shared and distributed memory architectures, heterogeneous
clusters of workstations, and Pile-of-PCs are sought. Of particular
interest are papers discussing applications of parallel algorithms and
the effective use of parallel computing methods in industrial applications.

Paper abstracts are due to the organizer by March 13, 1998 and may be
submitted digitally or by hardcopy format. Notification of abstract
acceptance is by April 3, 1998, and the final paper is due to the
organizer by June 29, 1998. Please submit your abstract to or for
further information contact:

Dr. Christopher J. Freitas
Principal Engineer - Computational Mechanics
Southwest Research Institute
6220 Culebra Road
San Antonio, Tx 78238-5166
Voice: 210-522-2137, Fax: 210-522-3042


From: Weiwei Sun <>
Date: Fri, 6 Mar 1998 11:10:50 +0800
Subject: Workshop in Hong Kong on Finite Element Methods

-- Theory, algorithm and applications

Liu Bie Ju Centre for Mathematical Sciences
City University of Hong Kong, Hong Kong

July 21 --24 1998

Organized by

Benqi Guo (Manitoba, Canada,
Weiwei Sun (CityU, HK,,

Objective :

The goal of this workshop is to survey the remarkable progresses
of the finite element methods in the past half century and
and the current challenging issues on the aspects of analysis,
algorithms, applications and implementations. The workshop is
also aimed at both mathematicians and engineers to participate in
discussing the mathematical and industrial perspective of the
finite element method in the twenty-first century.


Open to mathematicians and engineers working on the finite element
methods and their applications. Those wishing to attend and contribute
a talk should contact the organizers. Graduate students with interest
in numerical analysis and scientific computation are also encouraged
to participate. There is no registration fee for the workshop.
Please contact Dr. Sun for accommodation booking.

Invited Lectures:

Qiang Du (HKUST, Hong Kong) : Numerical Methods for the Ginzburg-Landau
Richard Falk (Rutgers, USA) : Finite Element Approximation of the
Reissner-Mindlin Plate Model
Lin Qun (Academia Sinica, China): High Accuracy Methods for Finite Elements
John Osborn (Maryland, USA): Eigenvalue problems;
Mary Wheeler (Austin, USA): Locally Conservative Algorithms for Modeling
Fluid Flow: Theory, Implementation,
and Application
Richard Falk (Rutgers, USA): Mixed Formulation for the plate and Shell

Topics of the workshop :

The p and h-p finie element method;
Discontinuous Galerkin method;
Eigenvalue problems;
Mixed formulation;
Computational mechanics
Parallel and iterative solvers;
Multigrid and domain decomposition method;
Computational geosciences;
Partition of unity finite element method;
Integral equation and boundary element method;
A-posteriori error estimation and adaptivity.

For further information, please visit the homepages:


From: Issam Moghrabi <>
Date: Fri, 6 Mar 1998 14:55:25 -0200
Subject: Arab Scientific Conference

Arab Scientific Conference
For Statistics, Informatics, Planning and Development (SIPD98), UNESCO
Palace, Beirut, Lebanon 14-16 April 1998

Under the Patronage of the President
of the Lebanese Republic
Mr. Elias Hrawi

Invited Speaker
Algerian Ex-President: Ahmad Ben Bella

Conference Topics: Science, Liberty and Planning for an Arab Role in Modern
Civilization formation.What have we stored from the 20th century and how are
we preparing for the 21st ? There will be excellent opportunities in Beirut
for exchanging ideas, for learning about recent achievements, and for making
new contacts with experts from many countries in all the subjects of the
conference. The number of accepted papers will be restricted if necessary so
that at least 10-20 minutes will be available for every talk and so that
there will be ample time for informal discussions and social activities. The
scheduling of talks and social events will be planned in a way that should
encourage participants to stay in Cambridge until the end of the conference.
Organiser: MAA-DATA, in collaboration with local, regional and international
Universities and Organisations.
Language of the Conference: Arabic and other languages with instantaneous
Participation Fee: 200$/person. Speakers are exempted from the registration fee.
Accommodation will be arranged for participants in local hotels at special
rates and will not be included in the fees.
Deadline for paper submission: You are invited to offer a paper for
presentation at the conference. If you wish to do so, please send your name,
address, the title of the paper and a summary of one or two pages by e-mail.
Full papers for inclusion in the proceedings are due by 18th of March, 1998.
All academic papers will be refereed and will be published in a special
issue of Al-Aloum (The Scientifior) Journal.
Scientific Committee: Edmond Neim, George Tohme, Hashem Haidar, M'hd
Majzoub, M'hd Ali AbdulRahim, Samir Makdissi, Riad Nassar, Nabil Haidar,
Ibrahim Salti, Saad Andari, Anis Abi Farah, Nasser Saidi, Youssef Salam,
Ossama Mogharbel, Kamil Kapana, Ahmad Houshman, Abdo Baaklini, Ali Nassar,
Rene Passe, Mohsen Jaber, Kassem Ben Saleh
Local Organising Committee: Mustapha Sleiman, Adnan Hamze, Dani Dueiri,
Issam Moghrabi, Issam A. Kader, Fawzi Atwi, Ayoub Chhemi, Eline Haddad,
Organizations involved: Central Bank of Lebanon, MaaData, Higher Council of
Education, Lebanese Council for Scientific Research, Team International,
Lebanese American University, Beirut Arab University, American University of
Beirut, Lebanese University, Islamic University, Kaslik University, St.
Joseph University, The Industrials Association, The Federation of the
American-Arab Associations Organisation, UNESCO, ESCWA, Lebanese Association
for the Advancement of Sciences (LAAS)
For more Information:


From: Joe Koebbe <>
Date: Sun, 8 Mar 1998 13:34:20 -0700 (MST)
Subject: Workshop on Industrial Mathematics

A Workshop on Industrial Mathematics
Utah State University
June 12-13, 1998

The Department of Mathematics and Statistics at Utah State University is
hosting a workshop on industrial mathematics. The workshop will include
lectures by eight speakers from industry and academia. In addition, a panel
discussion will be held on the second day on educational programs in industrial

Information about this program can be obtained at the following address:

Included at this site is an on line registration form for the workshop. There
is no registration fee. However, there will be a fee for those wanting to
participate in lunches and dinners at the workshop.

The preliminary list of speakers for the workshop is the following:

Ellis Cumberbatch, Professor, Core Graduate School Faculty, Claremont
Graduate University, Claremont CA.
I. Lee Davis, Thiokol Corporation, Ogden Utah
Greg Forest, Professor of Mathematics, and Associate Chair of Applied
Mathematics, University of North Carolina, Chapel Hill, NC.
Kirk E. Jordan, Senior Program Manager Scientific and Technical, University
Relations, IBM T.J. Watson Research Center, IBM Corporation.
Stephen P. Keeler, The Boeing Company.
David S. Ross, Applied Mathematics and Statistics Group, Kodak Research Labs.
Fadil Santosa, School of Mathematics, Minnesota Center for Industrial
Mathematics, University of Minnesota, Minneapolis, Minnesota.

Utah State University is located in Logan Utah, about 85 mile north of Salt
Lake City, Utah.

For further information about the workshop, feel free to contact the following
poeple at USU.

Joe Koebbe:
Xiaofeng Ren:
Emily Stone:


From: Stefan Funken <>
Date: Mon, 09 Mar 1998 08:47:41 +0100
Subject: GAMM Workshop on Iterative Processes

GAMM-WORKSHOP on Iterative Processes for Solving Equations
Mathematisches Seminar,
Christian-Albrechts-University of Kiel, Germany,
July 3rd to 5th, 1998

C. Carstensen (Kiel)
P. Kosmol (Kiel)
M.S. Petkovic (Nis, Yugoslavia)

The aim of this Symposium is to bring together mathematicians
working in all fields of iterative processes with the aim of
approximating the zeros of singles or systems of equations.
The nature and origin of the equations is understood in a
broad sense ranging from classical topics as the simultaneous
computing of all the zeros of an algebraic polynomial to the
sparse non-linear systems as they, for instance, arise in a
finite element discretization of non-linear partial
differential equations or optimization problems. Linear
iterative solvers for high-dimensional systems belong to the
scope of the symposium on its own or with emphasise as part
of a non-linear problem. The subtile problem of finding
initial conditions for a local solution is of interest as
well as computable sufficient conditions for convergence or
general local higher order methods.

Topics of interest include, but are not restricted to, the following:

o Optimization
o Control theory
o Calculus of variation
o Plasticity
o Partial differential equations
o Contact
o Microstructures

Everybody interested in the topics of the symposium is warmly
invited to attend. Please let us know about your intention to
participate by April 15, 1998. A second announcement with
further information, in particular, concerning hotel
accommodation, will be distributed in April 1998.

Call for papers: Participants wanting to give a talk (20 min)
should submit an abstract before April 15, 1998.
Notification of acceptance will be given on April 30, 1998.

List of invited speakers includes:
O. Axelsson (Nijmegen), M. Dryja (Warsaw), B. Fischer (Luebeck),
W. Hackbusch (Kiel), A. Hoffmann (Ilmenau), R. Kornhuber
(Stuttgart), M.S. Petkovic (Nis), P. Plechac (Oxford),
M. Reinders (Hannover), T. Roubicek (Prague), T. Sakurai (Japan),
H. Schwetlick (Dresden)

All correspondence in connection with the workshop, including
registration and submission of abstracts, is to be made via
e-mail on address:

Visit the homepage on
where more information on hotel reservation and a
registration form is found.


From: Edmund Christiansen <>
Date: Mon, 9 Mar 1998 12:30:15 +0100 (MET)
Subject: Danish Symposium on PDE

Danish Symposium on
Partial Differential Equations;
Analysis and Applications
May 28 - 29, 1998
Odense University, Denmark

The symposium is concentrated around the invited speakers:

Gilbert Strang, MIT
Roger Temam , Paris-Sud, pt. Indiana
Robert V. Kohn, Courant Institute
Michael Vogelius, Rutgers University
Robert P. Lipton, Worcester Polytechnic Inst.

There is no registration fee.
All further information, also concerning program and accomodation,
can be found on our web site:

You may also contact

Edmund Christiansen


From: Dheeraj Bhardwaj <>
Date: Mon, 9 Mar 1998 18:14:28 +0530 (IST)
Subject: Conference in India on Operations Research

Announcement and Call for Papers
ORSI(Operation Research Society of India) CONVENTION
AGRA (INDIA) , DEC. 19 - 21, 1998

The Theme

The conference focuses on O.R. and its applications in
Industry/ Managemnet with emphasis on real life problems.

Conference Topics

* Mathematical Programming
* Stochastic Processes
* Inventory Control
* Queueing Theory
* Network and Information Technology
* System Analysis and Design
* Game Theory
* Operational Management
* Analysis and Allied Topics

Call for Papers

Please send extended abstracts not exceeding 1000 words, by
August 31, 1998 to

Professor G.C. Sharma
Institute of Basic Science,
Khandari, Agra - 282002 (India).

Conference Venue

Institute of Basic Science, Khandri, Agra - 28200 (India)


Last date for receipt of Abstarcts : August 31, 1998
Last date for receipt of full paper : October 31, 1998
Last date for receipt of Registration fee : November 31, 1998
Conference in AGRA (INDIA) : December 19 - 21, 1998


Or e-mail to : Dr. Dheeraj Bhardwaj


From: Abraham Punnen <punnen@UnbSJ.CA>
Date: Tue, 3 Mar 1998 18:26:58 -0400 (AST)
Subject: Faculty Position at University of New Brunswick

Applications are invited for a two-year renewable term position in
Mathematics at the rank of Assistant Professor beginning July 1, 1998.
Candidates should have a Ph.D degree in Mathematics, together with
strong potential in teaching and research. Preference will be given
to those whose research is in any area of Applied Mathematics.
Responsibilities include teaching and research. Salary is
commensurate with qualification and experience. The availability of
the position is subject to budgetary approval. Applications, including
a curriculum vitae and the names of three referees, should be received
no later than March 31, 1998 by

Dr. C K Tompkins
Dean of Science, Applied Science & Engineering,
University of New Brunswick
P O Box 5050
Saint John
New Brunswick E2L 4L5

In accordance with Canadian immigration requirements, this
advertisement is directed to Canadian citizens and permanent
residents. The university of New Brunswick is committed to the
principle of employment equity.


From: Heinz Engl <>
Date: Thu, 05 Mar 1998 17:26:12 MET
Subject: Research Position at Johannes Kepler Universitaet, Linz

Position in Linz

We will soon have an industry-funded 3-year position (renewable after
each year) at the Johannes Kepler Universitaet Linz for a project
with a large car company involving collision problems with tolerances;
this is art of a long term cooperation, where we will be dealing with
inverse problems of the type "How do certain tolerances in a CAD-construction
have to be chosen in order to guarantee that the final part meets certain
criteria (under all admissible tolerance situations) like, in a given
motion, hitting or not hitting another part (again with tolerances)."
I am looking for a mathematician with high computer-literacy, experience
in object oriented programming, good geometric intuition and knowledge
of optimization methods. Diploma or equivalent and EU citizenship
required. Possibility of using the work to be done for a doctoral thesis.
Salary around 380.000 Austrian Schilling before tax.

Enquiries: Prof.Heinz Engl,

Prof.Dr.Heinz W. Engl E-Mail:
Institut fuer Industriemathematik
Johannes-Kepler-Universitaet Phone:+43-(0)732-2468...,ext.9219 or 693,
Altenbergerstrasse 69 secretary: ext.9220; as Dean: ext.3220
A-4040 Linz Fax:ext. 855, in Dean's affairs:ext.3225
Oesterreich / Austria home phone: +43-(0)732-245518
World Wide Web:


From: Eamonn Cahill <>
Date: Fri, 06 Mar 1998 18:06:05 +0000
Subject: Research Position at Trinity College, Dublin

University of Dublin, Trinity College

The Hitachi Lectureship in High Performance Computing

Applications are invited for this Research Lectureship which is funded
from an endowment made to Trinity College by Hitachi Limited. The
appointment will be tenable for a period of three years from the
earliest convenient starting date.

Applications will be welcome from candidates who have research interests
in any area of the applications of parallel computing including
economics, data mining, finance, engineering or science. The
appointment will afford, where appropriate, the opportunity to work with
specialists in the Hitachi Dublin Laboratory. Teaching duties will be
limited to the provision of specialised courses in parallel computing
and its applications.

The person appointed will work with the Director of High Performance
Computing in Trinity College, Dublin which, with Queen's University
Belfast, forms the Centre for Supercomputing in Ireland. The successful
candidate will be expected to contribute to the College's projects
within the EU's High Performance Computing Technology Transfer Network.

Commencing salary will be within the range 22,000/23,000 Irish Pounds
per annum.

Intending candidates should submit a full curriculum vitae, to include
the names of three referees, to:

Establishment Officer
Staff Office
Trinity College
Dublin 2
Telephone: +353-1-608-1678
Fax: +353-1-677-2169

The closing date for receipt of completed applications will be Friday,
27th of March, 1998.

Further information on High Performance Computing at Trinity College,
Dublin is available from Dr. James Sexton, email:

Trinity College is an equal opportunities employer.

Ref. 424/97


From: Peter Nightingale <>
Date: Thu, 5 Mar 1998 09:30:18 -0500
Subject: Postdoctoral Position at University of Rhode Island

Dear Colleague:

We have a postdoctoral position available for work on Monte Carlo
computation of eigenvalues in problems in statistical mechanics
(critical phenomena) and quantum mechanics (van der Waals clusters).
Please see for more
details and references.

I would appreciate it if you would bring this to the attention of
suitable candidates. I shall be at the APS March meeting and would
like to meet there with anyone who is intested.

Your sincerely,

Peter Nightingale ( Telephone (401) 874-5882
Department of Physics, East Hall Fax (401) 874-2380
University of Rhode Island Kingston, RI 02881


From: Michael Miksis <>
Date: Fri, 6 Mar 1998 12:32:25 -0600
Subject: Postdoctoral Position at Northwestern University


We are looking to fill a post-doctoral position in computational
fluid dynamics here at Northwestern University. The successful
applicant should have a background in CFD. Currently our group consists
of both theoreticians and experimentalists working together on problems in
interfacial fluid dynamics.

Please send applications to either:
Professor Michael J. Miksis,
Engineering Sciences and Applied Mathematics
Professor S. George Bankoff,
Department of Chemical Engineering

2145 Sheridan Road
Northwestern University
Evanston, IL 60208


From: Baltzer Science <>
Date: Tue, 3 Mar 1998 16:27:23 +0100
Subject: Contents, Numerical Algorithms

Numerical Algorithms 16 (1997) 1
Special issue: Second Symposium on New Techniques for the Treatment of
Sparse Matrices for Industrial Problems

Preface: Second Symposium on New Techniques for the Treatment of Sparse
Matrices for Industrial Problems

Guillaume Alleon, Michele Benzi and Luc Giraud
Sparse approximate inverse preconditioning for dense linear systems arising
in computational electromagnetics 1-15

B. Dumitrescu, M. Doreille, J.-L. Roch and D. Trystram
Two-dimensional block partitionings for the parallel sparse Cholesky
factorization 17-38

J.P. Gregoire, C. Rose and B. Thomas
Direct and iterative solvers for finite-element problems 39-53

Vincent Heuveline, Bernard Philippe and Miloud Sadkane
Parallel computation of spectral portrait of large matrices by Davidson type
methods 55-75

Gerard Meurant
The computation of bounds for the norm of the error in the conjugate
gradient algorithm 77-87


From: Baltzer Science <>
Date: Tue, 3 Mar 1998 16:48:41 +0100
Subject: Contents, Numerical Algorithms

Numerical Algorithms 16 (1997) 2

M. Mitrouli and C. Koukouvinos
On the computation of the Smith normal form of compound matrices 95-105

W.H. Enright and Min Hu
Improving performance when solving high-order and mixed-order boundary value
problems in ODEs 107-116

Relja Vulanovic
Fourth order algorithms for a semilinear singular perturbation problem

Qiming He, Lishan Kang and D.J. Evans
Convergence and stability of the finite difference scheme for nonlinear
parabolic systems with time delay 129-153

Tim Gutzmer and Armin Iske
Detection of discontinuities in scattered data approximation 155-170

Yves Lucet
Faster than the Fast Legendre Transform, the Linear-time Legendre Transform

Luc Rebillard
Rational approximation in the complex plane using a \tau-method and computer
algebra 187-208

J.C. Butcher, P. Chartier and Z. Jackiewicz
Nordsieck representation of DIMSIMs 209-230


From: Michiel Kolman <>
Date: Wed, 04 Mar 1998 13:16:33 +0100
Subject: Contents, Computer Physics Communications

ISSN : 0010-4655
Vol./Iss. : 108 / 2-3

Stochastic methods for zero energy quantum scattering
Koch , Justus H.
pp.: 115-146

Applications of semi-implicit Fourier-spectral method to
phase field equations
Chen , L.Q.
pp.: 147-158

A numerical method for solving the one-dimensional
Vlasov--Poisson equation in phase space
Utsumi , Takayuki
pp.: 159-179

A method to integrate an atom in a molecule without explicit
representation of the interatomic surface
Popelier , P.L.A.
pp.: 180-190

Time-dependent wavepacket calculations on polyatomic
reactive scattering
Kalyanaraman , C.
pp.: 191-199

A massively parallel molecular dynamics algorithm for the
MasPar supercomputer
Pickering , S.
pp.: 200-210

Ewald potentials evaluated through look-up tables
Danese , G.
pp.: 211-217

Angle decomposition of matrices
Verwoerd , W.S.
pp.: 218-239

POMULT: A program for computing periodic orbits in
Hamiltonian systems based on multiple shooting algorithms
Farantos , Stavros C.
pp.: 240-258

Global fit of ab initio potential energy surfacesI.
Triatomic systems
Aguado , Alfredo
pp.: 259-266

A code to evaluate prolate and oblate spheroidal harmonics
Gil , A.
pp.: 267-278

Two-photon physics with GALUGA 2.0
Schuler , Gerhard A.
pp.: 279-303


From: Deidre Wunderlich <>
Date: Wed, 04 Mar 98 14:55:54 -0500
Subject: Contents, SIAM Journal on Matrix Analysis and Applications

SIAM Journal on Matrix Analysis and Applications
Volume 19, Number 2, APRIL 1998

Stable and Efficient Algorithms for Structured Systems of Linear Equations
Ming Gu

H-Selfadjoint and H-Unitary Matrix Pencils
Ilya Krupnik and Peter Lancaster

Applications of the Dulmage-Mendelsohn Decomposition and Network Flow to
Graph Bisection Improvement
Cleve Ashcraft and Joseph W. H. Liu

Sign Controllability: Sign Patterns that Require Complete Controllability
Michael J. Tsatsomeros

More on Concavity of a Matrix Function
Jurgen Gross

On the Relationship Between Graphs and Totally Positive Matrices
J. M. Pena

The QR Decomposition and the Singular Value Decomposition in the
Symmetrized Max-Plus Algebra
Bart De Schutter and Bart De Moor

On the Block Independence in Reflexive Inner Inverse and M-P Inverse of
Block Matrix
Yiju Wang

On the Sandwich Semigroups of Group Boolean Matrices
Cen Jianmiao

Perturbation Analysis for the Cholesky Downdating Problem
Xiao-Wen Chang and Christopher C. Paige

Single-Input Eigenvalue Assignment Algorithms: A Close Look
Mark Arnold and Biswa Nath Datta

A Cubically Convergent Parallelizable Method for the Hermitian Eigenvalue
Hongyuan Zha and Zhenyue Zhang

Simultaneous Contractibility
Tsuyoshi Ando and Mau-hsiang Shih

Determinant Maximization with Linear Matrix Inequality Constraints
Lieven Vandenberghe, Stephen Boyd, and Shao-Po Wu

Overcoming Instability in Computing the Fundamental Matrix for a Markov
Daniel P. Heyman and Dianne P. O'Leary

Quadratic Residual Bounds for the Hermitian Eigenvalue Problem
Roy Mathias

The Relation Between the QR and LR Algorithms
Hongguo Xu

Complementation in Stochastic Matrices and the GTH Algorithm
E. Seneta

Condition Numbers of Random Triangular Matrices
D. Viswanath and L. N. Trefethen


From: Hans Schneider <>
Date: Wed, 4 Mar 1998 17:53:13 -0600 (CST)
Subject: Contents, Linear Algebra and Its Applications

Linear Algebra and Its Applications
Volume issue: 274/01-03
Year: 1998
Anticipated Publication Date: 18-MAR-98

pp. 1-16
Inequalities For The Q-Permanent II
AK Lal

pp. 17-26
The number of regular semisimple classes of special linear and unitary groups
P Fleischmann

pp. 27-36
An inequality for the Spectral Radius of an interval matrix

pp. 37-59
Similarity classes for nilpotent operators over dedekind domains
GD Appleby

pp. 61-76
On an estimate of the eigenvalues for an infinite-dimensional matrix and its
application to the problem of the completeness of an eigenvector system of a
completely continuous operator
V Strauss

pp. 77-83
Sur l'image et la noyau d'une derivation generalisie
A Seddick

pp. 85-124
Generalized inversion of block Toeplitz matrices
VM Adukov

pp. 125-160
Classification of hereditary matrices
Agler, JW Helton

pp. 161-191
Generalized Algebraic Structures for the Representation of Discrete Systems

pp. 193-210
The inertia of certain Hermitian block matrices
CM Da Fonseca

pp. 211-237
Parallelizable approximate solvers for recursions arising in preconditioning
Y Shapira

pp. 239-257
On a class of multi-parameter perturbations of positive-definite operators with
fixed bounds of spectrum
SM Malamud

pp. 259-300
Canonical form of symplectic matrix pencils
A Ferrante

pp. 301-315
Multiplicity of solutions of second order linear differential equations on
JA Lubary

pp. 317-365
The discrete algebraic Riccati equation and linear matrix inequality
AA Stoorvogel

pp. 367-388
Recursive properties of Toeplitz and Hurwitz matrices

pp. 389-410
On geometric properties of the numerical range
MT Chien

pp. 411-426
On a problem of Lewin
J Shen


From: Oleg Burdakov <>
Date: Sat, 7 Mar 1998 13:39:46 -0300 (EST)
Subject: Contents, Optimization Methods and Software

Table of Contents
Optimization Methods and Software (OMS)
Volume 8, Numbers 3-4 (March, 1998)

C.G. Broyden
A simple algebraic proof of Farkas's lemma and related theorems

L. Luksan and J. Vlcek
Computational experience with globally convergent descent methods for
large sparse systems of nonlinear equations

H. Goldberg and F. Troeltzsch
On a Lagrange-Newton method for a nonlinear boundary control problem

L. N. Vicente
On interior-point Newton algorithms for discretized optimal control
problems with state constraints


From: Petr Prikryl <PRIKRYL@MATH.CAS.CZ>
Date: Mon, 9 Mar 1998 15:41:23 -0100
Subject: Contents, Applications of Mathematics

Vol. 43, No. 2 (1998)

A note on bounds for non-linear multivalued homogenized operators
Nils Svanstedt

Locally most powerful rank tests for testing randomness and symmetry
Nguyen Van Ho

Bayesian estimation of the intraclass correlation coefficients
in the mixed linear model
Teresa H. Jelenkowska

Kinetical systems - local analysis
Ladislav Adamec

Characterization of the multivariate Gauss-Markoff model
with singular covariance matrix and missing values
Wiktor Oktaba

Solution of the Robin problem for the Laplace equation
Dagmar Medkov\'a

Notes and Notices:

Seventy-fifth anniversary of birthday Prof. Karel Rektorys
Emil Vit\'asek


End of NA Digest