NA Digest Monday, September 29, 1997 Volume 97 : Issue 39:

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: Stephen Vavasis <vavasis@CS.Cornell.EDU>
Date: Wed, 24 Sep 1997 11:27:45 -0400
Subject: Householder Quip

I am interested in tracking down a quip attributed to Householder: he
would be afraid to fly in an airplane designed with floating point
arithmetic. Does anyone know when and where he said this, and what
exactly he said? I asked Nick Higham, who pointed out the following
paper to me, which contains a paraphrase of the quip:

P. R. Turner, "Will the 'real' real arithmetic please stand up?",
Notices of the AMS, 38 (1991) 298-304.

I checked with the Peter Turner, but he does not know the quip's origin
either. If I get additional solid information, I will post a follow-up.

Steve Vavasis (


From: Gerd Kunert <gerd.kunert@Mathematik.TU-Chemnitz.DE>
Date: Fri, 26 Sep 97 13:35:00 MES
Subject: Question on PDE with Robin Boundary Conditions

I am investigating a-posteriori error estimators for the Finite
Element Problem and the Poisson equation. In addition to Dirichlet
and Neumann boundary conditions, I am also interested in boundary
conditions of the third type (Robin BC.)

d u/ d n = alpha*(g3 - u)

Such a boundary condition is mentioned only in few papers, and
an analysis is even more rare. My own investigations led to
formulae and error bounds which are much less convenient than
for Neumann BC.

Thus I would like to know whether Robin BCs constitute a severe
problem, or if results only have not been published.

Gerd Kunert


From: G. Scott Lett <>
Date: Sun, 21 Sep 1997 09:14:32 -0600 (MDT)
Subject: Change of Address for Scott Lett

Dear Colleagues,
I am now working as the numerical analysis lead at Research Systems
in Boulder, Colorado.

My new address is:

G. Scott Lett
Research Systems, Inc.
2995 Wilderness Place
Boulder, CO 80301

phone: (303) 413-3928


From: Knud Andersen <>
Date: Sun, 21 Sep 1997 19:48:28 +0200
Subject: Change of Address for Knud D. Andersen

To whom it may concern:

After 1.5 year post doc. at CORE,UCL, Belgium I am changing
coordinate (permanent from 3 October) back to

Knud D. Andersen
Dash Associates
Quinton Lodge
Binswood Avenue
Leamington Spa
CV32 5TH

Phone :(+44)-1926-315862
Fax :(+44)-1926-315854


From: Daniela Calvetti <>
Date: Mon, 22 Sep 1997 14:27:53 -0400
Subject: Change of Address for Daniela Calvetti

As of August 18, 1997, I have joined the Department of Mathematics at
Case Western Reserve University. My new address is:

Daniela Calvetti
Department of Mathematics
Case Western Reserve University
Cleveland, OH 44106

fax: 216 368 5163
phone: 216 368 2884


From: Eduardo Sontag <>
Date: Tue, 23 Sep 1997 16:37:56 -0400
Subject: Area Code and Addresses for Rutgers University

Contributed by: Eduardo Sontag (


Rutgers University (New Brunswick) has been assigned the new telephone area
code "732", which replaces the old code, "908". The new code is already
effective, and the old one will not be recognized within a month or so.
(A large part of Central New Jersey has been assigned the code 732 as well.)

In addition, the Post Office asked those departments that are physically
located in Piscataway (science, engineering, math, etc) to use accurate
addresses instead of the vague "New Brunswick" address. You should ask
your correspondents for their precise coordinates. For the MATHEMATICS
department at Rutgers, they are:

Department of Mathematics
Hill Center
110 Frelinghuysen Rd
Rutgers, The State University of New Jersey
Piscataway, NJ 08854-8019, USA

(This form should be used, also, when mailing via FedExp/UPS/DHL, etc.)


From: Bodo Parady <Bodo.Parady@Eng.Sun.COM>
Date: Sun, 21 Sep 1997 18:04:43 -0700
Subject: SPEC Awards Program

The SPEC CPU98 benchmark awards program continues for three more months.
To date more than 25 submissions have been made with a large
number of them being considered. The award program is open ended,
with awards going to any of number candidates, depending on quality.
The submittor must supply source and have the right to submit the
source to SPEC.

It is open to application programs in a wide variety of fields.
Applications employing sparse matrix or gather/scatter matrix
operations and the eigenvalue problem are three areas where the number
of submissions is still somewhat meager.

The focus of the awards program is toward end user applications.
For example a circuit simulator is preferred over a program that
just does matrix inversions. Larger (in terms of lines of code
and memory utilization) applications are preferred over smaller

Submissions can be made by going to:

If there are further questions on this program, please feel free to
contact me via email


Bodo Parady
SPEC Technical representative
Sun Microsystems


From: Ute McCrory <>
Date: Fri, 26 Sep 1997 13:43:34 +0200
Subject: New Book, Galerkin Finite Element Methods for Parabolic Problems

New Book Information

Vidar Thomee, Chalmers University, G=F6teborg, Sweden

Galerkin Finite Element Methods for Parabolic Problems
Springer Series in Computational Mathematics. Eds.: R.L. Graham; J.
Stoer; R. Varga. Vol. 25

This book surveys the mathematics of Galerkin finite element method as
applied to parabolic equations. The approach is based on first
discretizing in the spatial variables by Galerkin's method, using
piecewise polynomial trial functions, and then applying some single step
or multistep time stepping method. The concern is stability and error
analysis of approximate solutions in various norms, and under various
regularity assumptions on the exact solution. The book gives an
excellent insight in the present ideas and methods of analysis rather
than pursuing each approach to its limit. It is essentially
self-contained, and simple model situations make it easily accessible
even for beginners in the field. Its basis is the author's LNM volume
1054 of 1984, which has been substantially amended.

1997 . X, 302 pp., Hardcover $ 95,- ; DM 148,- ; ISBN 3-540-63236-0

Book category: Monograph
Publication date: September , 1997

Contact Person at Springer-Verlag:

Martin Peters
Mathematics Editor Phone: 06221 487-607
Springer-Verlag Fax: 06221 487-355
Tiergartenstr. 17 E-mail:
D-69121 Heidelberg

Visit our Web site at


From: Ladislav Jirsa <>
Date: Mon, 22 Sep 1997 09:18:01 +0200 (METDST)
Subject: Workshop on Control in Prague, Czech Republic

First announcement:

The 3rd IEEE European Workshop on Computer-Intensive Methods in Control
and Data Processing


September 7-9, 1998
Prague, Czech Republic


Topics relevant to the Workshop :

Models of complex systems
(neural networks, Bayesian networks, graphical models, non-parametric
Techniques of uncertainty management
(finite-dimensional estimation, nonlinear filtering, Markov chain
Monte Carlo algorithms)
Control design and optimization techniques
(dynamic programming approximations, Monte Carlo sequential
control, randomized algorithms of control design)
Software and hardware issues
(database management, data warehousing, massively parallel
computing, distributed and network computing, data visualization)
Real-life applications
(analysis of massive data sets, complex modelling and
optimization in engineering, economics, physics, biology etc.)


From: Mishi Derakhshan <>
Date: Tue, 23 Sep 1997 14:15:00 +0100 (BST)
Subject: Parallel Numerical Libraries in Industry

Preliminary Announcement

PINEAPL Workshop
A Workshop on the Use of Parallel Numerical Libraries in Industrial
End-user Applications

February 9-10, 1998
Toulouse, France


The Parallel Industrial NumErical Applications and Portable Libraries
(PINEAPL) Project is a European Framework IV HPCN Project funded by the
European Commission. It is a coordinated effort to produce a general
purpose library of parallel numerical software suitable for a wide range
of computationally intensive industrial applications and to port several
application codes which use this library to parallel computers. The
basis of the coverage of the library has been determined by the
requirements of the end-user applications and its principal objective is
to produce a library of parallel numerical software that meets the
following requirements:

* the problems addressed by the library should be relevant to a wide
range of industries,
* the library should be portable and efficient across a wide range of
parallel machines,
* the numerical algorithms must be accurate, stable and robust,
* the software and documentation should be produced to commercial
quality and should meet recognized standards and pass strict quality
control processing.

Almost all of the numerical software included in the library will be
tested for accuracy and stability using an existing tool, PRECISE.
PRECISE is based on well-understood theory and the project will bring
PRECISE to a mature and commercial quality.

Target machines for the project will range from low cost networks of
workstations that are common in SMEs to high-end distributed memory
parallel computers.

For more information, see the project web-page:

Workshop Themes:

The workshop will provide a forum to discuss progress on enhancing the
number of applications that can take advantage from the PINEAPL Project

The workshop will be of interest to:

* practitioners from industry with applications which embed numerical
* hardware vendors who would like to have quality parallel mathematical
software implemented on their parallel systems,
* researchers who are interested in application areas and numerical
algorithms for high-performance computing.

Organizing Committee:

Mishi Derakhshan, NAG Ltd, UK (
Alan McCoy, CERFACS, France (
Vincent Toumazou, CERFACS, France (
Len Freemen, University of Manchester, UK (
Graham Riley, University of Manchester, UK (
Lucia Maddalena, CPS, Italy (

There is no conference fee but participants must register to attend
because of the space limitation.


From: Panayot Vassilevski <>
Date: Thu, 25 Sep 1997 09:00:32 +0300
Subject: Numerical Methods Conference in Sofia

4th International Conference on
Numerical Methods and Applications: NMA'98
August 19 - 23, 1998, Sofia, BULGARIA.
Organized by:
The Institute of Mathematics and Informatics, Bulgarian Academy of Sciences,
in cooperation with
Central Laboratory for Parallel Processing, Bulgarian Academy of Sciences,
Faculty of Mathematics and Informatics, University of Sofia, and
Society for Industrial and Applied Mathematics (SIAM)

Honorary Chairman: Blagovest Sendov
Chairman of the International Program Committee: Mikhail Kaschiev
Organizing Committee Co--Chairs: Oleg Iliev and Panayot Vassilevski

Conference Topics:
(1) Finite difference methods; (8) Numerical methods for non-linear problems;
(2) Finite element methods; (9) Numerical methods for multiscale problems;
(3) Finite volume methods; (10) Multigrid and domain decomposition;
(4) Boundary element methods; (11) Computational fluid dynamics;
(5) Monte Carlo methods; (12) Structural mechanics modeling;
(6) Numerical linear algebra; (13) Environmental modeling;
(7) Parallel computing; (14) Engineering applications;
(15) Minisymposia.

Confirmed key and invited lecturers:
O. Axelsson (The Netherlands), J.H. Bramble (USA), B.N. Chetverushkin
(Russia), R.E. Ewing (USA), R.P. Fedorenko (Russia), S.K. Godunov (Russia),
M. Griebel (Germany), P. Hemker (The Netherlands), U. Jaekel
(Germany), Z. Kamont (Poland), S.P. Kurdyumov (Russia), Yu.A. Kuznetsov
(USA/Russia), R. Lazarov (USA/Bulgaria), H. Niederreiter (Austria),
L. Perkins (USA), B. Philippe (France), Yu.P. Popov (Russia), I.V. Puzynin
(Russia), S. Rjasanow (Germany), A.A. Samarskii (Russia), M. Schaefer
(Germany), V. Thomee (Sweden), P.N. Vabishchevich (Russia),
H.A. van der Vorst (The Netherlands), M.F. Wheeler (USA), L. Xanthis (UK),
Z. Zlatev(Denmark)

Registration Form:
Visit our WWW--sites (preferred) for an early on-line registration:
Alternatively, to register fill-in and to send us via e-mail (or ordinary
mail) a registration form that can be obtained from the organizers.

E-mail address and FAX of the Conference: FAX: (--359-2)--971--36--49
Web sites:
Mailing address: NMA'98, c/o Dr. Oleg Iliev
Institute of Mathematics and Informatics, Bulgarian Academy of Sciences
"Acad. G. Bontchev" street, Block 8, Sofia 1113, BULGARIA


From: Jack Dongarra <>
Date: Fri, 26 Sep 1997 17:12:07 -0400
Subject: Workshop on Java for High-Performance Network Computing

ACM 1998 Workshop on
Java for High-Performance Network Computing

Sponsored (pending) by SIGPLAN, NSF, and DARPA

Palo Alto, California, February 28 & March 1, 1998

The workshop focuses on the use of Java in the broad area of
high-performance computing; including engineering and scientific
computing, simulations, parallel and distributed computing,
data-intensive applications, and other emerging applications that
combine communication and computing. The workshop is aimed at
getting a broad perspective of community interests and views, as well
as more technical discussions. The goal is to provide feedback to
users and language developers on what is required to successfully
deploy Java in scientific and high-performance computing
environments. Authors are invited to submit manuscripts that
demonstrate timely results, technologies, or experiences that are
most likely to have impact on the use of Java in high performance
computing systems.

Topics of interest include but are not restricted to:

* Java computing frameworks (e.g. HPC, numeric, data parallel)
* Web based computation environments in Java
* Java in sequential and distributed simulations
* Java runtime systems and I/O
* Java numerics
* Java applications (e.g. real-world HPC, grand challenge)
* Java compilers (e.g. optimizations, just-in-time vs. off-line)
* Compilers that target or optimize Java bytecode
* Source-to-source translators (e.g. C, Fortran, and C++ to Java)
* Java performance and benchmarking
* Java as user interface to simulation
* Java as wrapper technology for existing scientific codes
* Java applets to illustrate science for education

Similar Java workshops were held very successfully in Syracuse in
1996 and in Las Vegas in 1997 (
A mailing list has been created for people interested in Java for
Science and Engineering Computation. To join, send a message with
"subscribe java-for-cse" to


Siamak Hassanzadeh Klaus Schauser
High Performance Computing Parallel Computing Lab
901 San Antonio Rd., MS MPK12-201 Department of Computer Science
Sun Microsystems Computer Corp University of California
Palo Alto, CA 94303 Santa Barbara, CA 93106
Phone: (650) 786-3942 Phone: (805) 893-3926
FAX: (650) 786-6455 FAX: (805) 893-8553


Mani Chandy Caltech
Jack Dongarra University of Tennessee/Oak Ridge Nat. Lab
Ian Foster Argonne National Laboratory
Geoffrey C. Fox Syracuse University
Dennis Gannon Indiana University
Siamak Hassanzadeh Sun Microsystems
Urs Hoelzle University of California-Santa Barbara
Susan Flynn Hummel IBM T.J. Watson Research
Carl Kesselman USC - ISI
Wei Li Oracle
Michael Philippsen University of Karlsruhe
Klaus E. Schauser University of California-Santa Barbara
David Tarditi Microsoft Research
George K. Thiruvathukal Argonne National Laboratory


From: Dave Voss <>
Date: Fri, 26 Sep 1997 18:36:36 -0500 (CDT)
Subject: Midwest NA-Day 1998

Saturday, April 25, 1998
Western Illinois University, Macomb, Illinois

This conference is aimed at faculty members, graduate students and
visitors from universities in the central US. Confirmed invited
speakers are:

Joe Flaherty (RPI)
Adaptive Methods for PDEs

Bill Gear (NEC Research Inst. Inc.)
Scientific Computing and Computer Vision

Edward Twizell (Brunel University, England)
Computational Bio-Mathematics

Abdul Khaliq (, (309) 298-1562)
Dave Voss (, (309) 298-1562)

Information concerning the conference will be available on the
World Wide Web at http://www/ECNet.Net/users/mfamk/Midwest_NA_Day

If you are interested in giving a contributed talk in the form of oral
presentation or in a poster session, submit a title and short abstract
(indicating the form of presentation) by March 16, 1998, either
through the conference web page, via e-mail to, or to
one of the organizers. There is no registration fee

Abdul Khaliq ( Dave Voss (
Department of Mathematics Department of Mathematics
Western Illinois University Western Illinois University
Macomb, IL 61455 Macomb, IL 61455

phone: (309) 298- 1562
fax: (309) 298-2585


From: Kendall Atkinson <>
Date: Mon, 22 Sep 1997 17:22:23 -0500 (CDT)
Subject: Faculty Positions at University of Iowa

New Positions

The Department of Mathematics of The University of Iowa invites
applications for the following positions.

1. Tenure-track assistant or beginning associate professorship, starting
in August 1998, in the broadly interpreted area of numerical analysis.
Exceptional candidates at higher rank may be considered. Selection will
be based on evidence of outstanding research potential or accomplishments,
and teaching ability. A Ph.D. or equivalent is required. For more
information on numerical analysis at the University of Iowa, link to the
WWW site
2. Pending availability of funds, one or more visiting positions for all
or part of the 1998-99 academic year. Selection will be based on
research expertise and teaching ability. Preference will be given to
applicants whose scholarly activity is of particular interest to
members of the current faculty.

Women and minority candidates are especially urged to apply for the above

Formal screening will begin December 15, 1997; applications will be
accepted until the positions are filled. To apply, send a complete vita and
have three letters of recommendation sent to:

Professor Bor-Luh Lin, Chair
Department of Mathematics
The University of Iowa
Iowa City, Iowa 52242

For additional information on the University of Iowa, check the WWW site
For the Dept of Mathematics, check the WWW site
For the Iowa City area, see the WWW site

The University of Iowa is an Equal Employment Opportunity and Affirmative
Action Employer.


From: Leo Franca <>
Date: Tue, 23 Sep 1997 10:11:06 -0600 (MDT)
Subject: Faculty Position at the University of Colorado at Denver

University of Colorado at Denver
Department of Mathematics

The Department of Mathematics at the University of Colorado
at Denver is seeking to fill a tenure-track position at the
rank of Assistant Professor, beginning August 1998. Position
is contingent on budgetary approval. We offer B.S., M.S. and
Ph.D. degrees with optional focus in one of the six areas:
computational mathematics, discrete mathematics, engineering
mathematics,operations research, probability and statistics.
These also comprise active areas of research of our resident

Applicants are expected to show strong potential for
teaching and research and have a commitment to professional
service. Applicants must have, or expect to receive by
July 30, 1998, a Ph.D. in one of the mathematical sciences.
For this position, the area of greatest interest is
mathematics education. The candidate should demonstrate
evidence of research in this area, experience with teaching
using technology,and potential to coordinate and improve the
undergraduate service courses offered by the Department.

To apply, please send a current vita,a statement of teaching
philosophy and experience, list of publications, a statement
of research plans and goals, and arrange to have three
letters of recommendation sent to:

Leopoldo Franca, Search Committee Chair
Mathematics Department - Campus Box 170
University of Colorado at Denver
P.O. Box 173364
Denver, CO 80217-3364

Our fax number is 303-556-8550. For more information on
our department and university visit our web site at Review of applications will
begin on December 1st, 1997 and continue until the position
is filled.

The University of Colorado at Denver is an affirmative
action, equal opportunity employer, and educator with a
strong committment to diversity and to program access for
persons with disabilities. Alternative formats of this
announcement are available upon request. The Colorado Open
Records Act (C.R.S. 24-72-204) requires that an applicant
make a written request at the time of application that the
application be kept confidential. Applications without such
a written request for confidentiality are open records and
must be disclosed upon request.


From: Carl Cowen <cowen@MATH.Purdue.EDU>
Date: Fri, 26 Sep 1997 06:26:22 -0500 (EST)
Subject: Faculty Position at Purdue University

Professor of Mathematics
Director, Center for Applied Mathematics
Department of Mathematics
Purdue University

Since Purdue is Indiana's state-supported land-grant university and has a
world class engineering school and widely recognized departments in science,
management, and agriculture, Purdue's Mathematics Department has the
opportunity, indeed, the obligation, to have a strong and influential group in
applied mathematics with strong ties to the rest of the university.

Purdue's Center for Applied Mathematics (CAM) was started in 1985 under the
directorship of Avner Friedman and has been led by Jim Douglas, Jr. since
1987. CAM provides an umbrella for the activities of faculty, post-doctoral
staff, graduate students, and long and short term visitors in applied
mathematics. Currently, there are a dozen mathematics faculty who identify
themselves as applied mathematicians and several other faculty in and out of
the department who work in applied areas and are loosely associated with CAM.
The Purdue Mathematics Department is committed to deepening and expanding its
contributions to research and education in applied mathematics. Because of
its solid foundation and the support of the school and university
administrations, the department is well positioned to achieve its goals in
this area.

The Director should be a senior full professor or distinguished professor of
mathematics with the stature and experience to lead outstanding research and
educational programs in applied mathematics. In addition to carrying on a
strong research program in her or his own area, the Director will be expected
to coordinate the development of other applied areas in the department,
facilitate research contacts between mathematics faculty and faculty in other
departments, oversee the applied mathematics visitor and seminar programs, and
help create an atmosphere in which the educational programs of graduate
students and post-doctoral staff in applied mathematics can flourish.

To this end, the Purdue Mathematics Department seeks applicants for the
position of Professor of Mathematics and Director, Center for Applied
Mathematics, with a strong national reputation in research in applied
mathematics, proven ability to work with graduate students, post-docs, and
colleagues, a record of funding success, and flexibility in pursuing
opportunities. Applicants should possess a broad vision compatible with
Purdue's strong traditions in mathematics, the sciences, and engineering and
demonstrate the ability to promote applied mathematics as a part of

Persons interested in applying for this position, or discussing it in
confidence, should contact

Carl C. Cowen, Head
Department of Mathematics
Purdue University
West Lafayette IN 47907-1395
765-494-1908 (voice)
765-494-0548 (fax)

Purdue University is an Affirmative Action/Equal Opportunity Employer.


From: Eric Miller <>
Date: Tue, 23 Sep 1997 13:27:09 -0400
Subject: Postdoctoral Position at Northeastern University

Post-Doctoral Research Position Available at Northeastern University in
Computational Physics and Signal Processing.

Description: As part of a Multidisciplinary University Research
Initiative aimed at the detection, localization, and classification of
buried land mines, a post-doctoral research position is available at
Northeastern University in Boston, MA combining elements of
computational physics and signal/image processing. The research will
center around physics-based signal processing methods for solving the
demining problem. The initial phase of the work will be directed
toward the development of computationally efficient sensor models
describing the diffusion and/or propagation of energy through the earth,
the interaction of the energy with buried objects, and the process of
measuring the resulting scattered fields. In particular, models for low
frequency electromagnetic inductive systems and radio frequency ground
penetrating radar sensors are of interest. The second portion of the
research will center on the development of signal and image processing
algorithms based on these models for mine detection, localization, and
classification. Of interest here are statistical signal processing
methods employing elements of decision and estimation theory which are
robust to sensor noise and environmental clutter.

Requirements: A Ph.D. and strong analytical skills in a field relevant
to the above described work (eg. Electrical Engineering, Mathematics,
Physics, Geoscience etc.) with experience in at least a subset of the
following areas:

1. Statistical signal processing,
2. Computational electromagnetics,
3. Numerical analysis
4. Inverse scattering,
5. Multiscale methods including wavelets

The candidate will be expected to carry out research in an independent
manner and if interested aid in the supervision of Master's and Doctoral
level graduate students. Strong oral and written English skills are a

Funding is available for up to three years and I am looking for someone
to start as soon as possible.

All interested applicants are invited to contact
Prof. Eric Miller
235 Forsyth Building
Northeastern University
Boston, MA 02115
Tel: 617-373-8386=09

for more information or to submit an application (CV, references, and a
reprint of a published journal article).


From: Wolfgang Wall <>
Date: Wed, 24 Sep 1997 15:11:12 +0200 (METDST)
Subject: Research Position at University of Stuttgart

Research position available (University of Stuttgart/Germany)

Within the project "Fluid-Structure-Interaction of Shells" of the
collaborative research center (SFB 404) "Multi-Field Problems in
Continuum Mechanics", involving research groups from different
engineering disciplines and mathematics, a position as


at the Institute of Structural Mechanics at the University of Stuttgart
is available. We are looking for individuals with a Masters degree in
"APPLIED MATHEMATICS" or related areas. The position (BAT IIa/2) starts
at 01.01.1998 and applicants are expected to work towards a Ph.D.

The project aims at the development of reliable methods for the
numerical simulation of the nonlinear, dynamic response of thin-walled
structures (e.g. containments) interacting with fluids. The working
area connected with this position will be the development of efficient
solution methods (multigrid, domain decomposition, parallelization ...)
for flow, structural and coupled problems.

Requirements are a sound background in numerical analysis and at least
basic knowledge in mechanics and scientific computing.

Applications should be sent to (deadline: November 30, 1997):

Prof. E. Ramm
Institut fuer Baustatik
Universitaet Stuttgart
Pfaffenwaldring 7
D - 70550 Stuttgart

For further information:
Prof. E. Ramm, Tel.: +49 711 685-6123, Fax: +49 711 685-6130,
or: W.A.Wall, Tel.: +49 711 685-6574,
Homepage of the institute:


From: Univ. Montreal <chantal@CERCA.UMontreal.CA>
Date: Wed, 24 Sep 1997 12:41:38 -0400
Subject: Postdoctoral Fellowship Program at University of Montreal

Industrial Postdoctoral Fellowship Program at CERCA (Centre for Research on
Computation and its Applications), Montreal, Quebec, Canada

For more information: or

Large Eddy Simulations (LES) of Wind/Structure Interaction

Recruiting of a postdoctoral fellow to join the CERCA team on computational
wind engineering. The successful candidate is expected to work on the
coupling between a non-hydrostatic meteorological code at large and medium
spatial scales, and a high resolution code for flows around structures based
on large eddy simulations (LES). Both codes are tested and
available. Applicants should have a strong background in computational fluid
dynamics and in turbulence modelling.

Annual stipend: CAN$35,000.
Deadline for receipt of applications: November 28, 1997.


From: Paul Concus <>
Date: Thu, 25 Sep 1997 09:43:53 -0700 (PDT)
Subject: Postdoctoral Positions at LBNL


The University of California Lawrence Berkeley National Laboratory
Mathematics Department invites applications for postdoctoral research
fellowships in computational and applied mathematics. Applicants should
have a Ph.D. in mathematical, computational, or physical sciences or
engineering and an interest in scientific computing for research in
problems involving turbulence, fluid dynamics, porous media, elasticity,
fracture, materials science, free moving boundary and interface
dynamics, semiconductor manufacturing, image processing, computer
vision, robotic control, and/or seismology. The positions are for one
year, beginning in the summer or fall of 1998, with possibility of
renewal for a second year. Interested persons should submit a curriculum
vitae and the names of three references before February 15, 1998 to
Prof. A. Chorin or Prof. J. Sethian, c/o Staffing Office (Box-MATH),
Mail Stop 938 A, Lawrence Berkeley National Laboratory, 1 Cyclotron
Road, Berkeley, CA 94720, referring to position No. MATH/204, or submit
by e-mail to Applicants may wish to see the
Mathematics Department's home page at Lawrence
Berkeley National Laboratory is an affirmative action/equal opportunity
employer committed to the development of a diverse workforce.


From: Edit Kurali <>
Date: Mon, 22 Sep 1997 16:22:33 -0400 (EDT)
Subject: Contents, Journal of Approximation Theory

Table of Contents
J. Approx. Theory
Volume 90, Number 3
September 1997

Robert Huotari and Wu Li
Continuities of metric projection and geometric consequences

Sergey K. Bagdasarov
Zolotarev $\omega$-polynomials in $W^rH^\omega[0,1]$

S. V. Konyagin
Divergence almost everywhere of a pointwise comparison of two sequences
of linear operators

Frank Deutsch, Wu Li, and Joseph D. Ward
A dual approach to constrained interpolation from a convex subset of
Hilbert space

Andr\'as Kro\'o and Darrell Schmidt
Some extremal problems for multivariate polynomials on convex bodies

Ammar Boukhemis
Study of sequence of classical orthogonal polynomials of dimension 2

Book reviews

Author index for Volume 90


From: Baltzer Science <>
Date: Tue, 23 Sep 1997 08:40:37 +0200
Subject: Contents, Numerical Algorithms

Numerical Algorithms 15 (1997) 2

I.J. Anderson
A piecewise approach to piecewise approximation 139-152

Hans Strauss
On interpolation with products of positive definite functions 153-165

Celina Pestano-Gabino and Concepcion Gonzalez-Concepcion
Matrix Pade Approximation of rational functions 167-192

Vasile Dragan, Aristide Halanay and Adrian Stoica
Well-conditioned computation for H\infty controller near the optimum 193-206

N.M. Temme
Numerical algorithms for uniform Airy-type asymptotic expansions 207-225

Nicholas J. Higham
Stable iterations for the matrix square root 227-242

C. Brezinski
Book reviews 243-246


End of NA Digest