NA Digest Sunday, January 22, 1995 Volume 95 : Issue 04

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

Submissions for NA Digest:

Mail to

Information about NA-NET:

Mail to


From: Stephen Wolfram <>
Date: Fri, 20 Jan 1995 10:11:10 -0600
Subject: Jerry Keiper

I wanted to let you know of a very sad event that took place yesterday
evening: Jerry Keiper, the leader of our numerics R&D group, was killed in
a bicycle accident in Champaign, Illinois.

Jerry began his work on Mathematica in 1987, and laid the foundations
for most of the numerical capabilities of the system. He pioneered
major new approaches in numerical analysis, implementing them in
Mathematica, as well as using them in papers that he published
about topics such as the Riemann zeta function. (He was largely responsible
for the 1990 Mathematica poster of the zeta function.)

Jerry will be known to many for his book "Elementary Numerical Computing
with Mathematica", as well as for his lectures, papers and participation
in newsgroups. His tragic death in the prime of his life is a great loss
not only to those who knew him personally, but also to the world of
mathematics and computing at large.

In addition to having a superb intellect, Jerry was also a remarkable
human being whose life continually demonstrated the deep spiritual and
philosophical principles that guided him. I and his many friends will
miss him greatly.

We have set up the alias for mail about Jerry
that can be shared with his family, friends and colleagues. We will
be posting a more extensive obituary shortly.

-- Stephen Wolfram


From: David Wille <>
Date: Mon, 16 Jan 1995 8:52:59 MET
Subject: Reports on ODE Stepsize Control

Dear NA-digest readers,

I wish to make a brief announcement for two technical reports on
stepsize control now available electronically by ftp:

"New stepsize estimators for linear multistep methods"
Numerical Analysis report 247, David R. Wille,

"Experiments in stepsize control for Adams linear multistep methods"
Numerical Analysis report 253, David R. Wille.

They, as can most other Manchester reports be retrieved by ftp at ( as and
in the directory pub/narep.

I hope you will find the two of interest,

David Wille

(affiliated to the Manchester
Centre for Computational Mathematics)

Ciba-Geigy AG, Basel, Switzerland phone + 41 61 697 4114 fax + 41 61 697 8973


From: Baltzer Science Publishers <>
Date: Mon, 16 Jan 1995 09:47:58 +0100
Subject: Advances in Computational Mathematics - Correction

The correct procedure for submission of articles is as follows:

Submissions of articles and proposals for special issues are to be
addressed to the Editor-in-Chief:

John C. Mason
School of Computing and Mathematics, University of Huddersfield,
Queensgate, Hudersfield, HD1 3DH, United Kingdom


From: Kelly Black <>
Date: Mon, 16 Jan 1995 10:57:10 -0500
Subject: SIAM Undergraduate World Wide Web Pages

We have been working on a WWW page for SIAM that is designed
for undergraduate mathematicians. The URL is

I would appreciate hearing from anyone about any information
that would be appropriate to include in the pages.

Kelly Black
Department of Mathematics
University of New Hampshire
Durham, NH 03824


From: Avram Sidi <SIDI@UConnVM.UConn.Edu>
Date: Thu, 19 Jan 95 22:39:33 EST
Subject: Temporary Change of Address for Avram Sidi

Until July 1995 I will be at the following address:

Department of Mathematics, U-9
University of Connecticut
Storrs, Connecticut 06269

e-mail address:

phone: (203) 486-3850


From: Jim Varah <>
Date: Wed, 18 Jan 1995 14:59:29 UTC-0800
Subject: Two Special Swedish Birthdays

Two Special Swedish Birthdays

Last week, conferences were held in Sweden recognizing special
milestones for two foremost Swedish numerical analysts:
Ake Bjorck and Germund Dahlquist.

First, on January 9/10, a conference on least squares computations
celebrating Ake Bjorck's 60th birthday was held in Linkoping, very
well organized by Lars Elden and Tommy Elfving, assisted by the staff
of their department. About 70 people attended, including many from
North America and Central Europe. Invited talks were given by
Gene Golub, Iain Duff, Pete Stewart, Sabine van Huffel, Chris Paige,
Jim Varah, Charles van Loan, and Michael Saunders. In addition, there
were over 20 contributed talks, making it a very full two-day meeting.
Particularly notable, in this reviewer's estimation, was Charlie van
Loan's talk on the use of Kronecker Products in matrix decompositions,
including new applications in wavelet transformations.

A conference dinner in Ake's honor was held on the evening of
January 9, at the Frimurare Hotel, in true Swedish style, with the
President on Linkoping University, Sven Erlander, presiding.
Many testimonials to Ake's work and generous nature were given.
He was summed up by more than one observer as "a true Swedish

Note: several of the papers presented at the conference are available
on WWW - use

Second, from January 11-13, a conference honoring Germund
Dahlquist's 70th birthday was held at the Royal Institute in Stockholm,
ably organized by Lennart Edsberg, Bengt Lindberg, and the staff
of NADA. Unlike the event 10 years ago celebrating his 60th
birthday, this one was not intended to be a major conference. However,
there were still over 70 attendees, many from North America and other
parts of Europe (and John Butcher from New Zealand!). Hour-long
invited talks were given by Gene Golub, John Butcher, and Heinz
Kreiss, and there were as well 25 twenty-minute talks, thus filling up
the two and a half day schedule.

Again the conference dinner Thursday night at the Vardshuset on the
KTH campus was most entertaining, with 12 testimonials given to
the breadth and depth of Germund's contributions to the field, and
to his support of other researchers. The evening culminated in
the singing of a special "Ode to Germund", written specially for
the occasion.

Jim Varah


From: Seiji Fujino <>
Date: Thu, 19 Jan 1995 15:39:45 +0900
Subject: Who are Seidel, Hessenberg and Jordan?

Who are Seidel ?, Hessenberg ? and Jordan ?

Most of numerical analysts know the Gauss-Seidel method
of the iterative method, the Hessenberg matrix in eigenvalue
problem and the Gauss-Jordan method for the direct method
for linear systems.
I do, however, wonder who is Seidel, Hessenberg and Jordan ?

Concerning Seidel as a designer of the Gauss-Seidel method,
from the book titled 'Valeurs propres de matrices' by
Francoise Chatelin published by Masson Paris 1988.
In chapter 2.12 of the book, we can see that Philipp Ludwig
Seidel(1821-1896) was born at Zwiebr\"ucken and
died at M\"unchen.
Moreover, we know that his original paper of the Gauss-Seidel
method is the following paper.

\"Uber ein Verfahren, die Gleichungen, auf welche
die Methode der kleinsten Quadrate f\"uhrt, sowie lineare
Gleichungen \"uberhaupt, durch successive Ann\"aherung
aufzul\"osen, Abh. bayer Akad. Wiss., {\bf 11}(1874), 81.

However, I want to know on his personal data in detail.

Concerning Hessenberg as a designer of the Hesssenberg matrix
in eigenvalue problems, from the book written by G\"unther and
H\"ammerlin titled "Numerical Mathematics" published from
Springer Verlag 1991(English translation),
we can see that they refered K. Hessenberg (1941) in page 97
of the book as a designer of Hessenberg matices, and
listed in the reference(page 409):

"Auflosung linearer Eigenwertaufgaben mit Hilfe der
Hamilton-Cayleyschen Gleichung. Dissertation T. H. Darmstadt"
by K. Hessenberg(1941).

Does anybody have his dissertation itself?

Concerning Jordan as a designer of the Gauss-Jordan method of
the direct method for linear systems, I do not know except
that he might be German.
In chapter 1.6.3 of the above book by F. Chatelin, we see that
Jordan as a designer of Jordan normal form is French Camille
Jordan(1838-1921). He was born at Lyon and was died at Paris.
However, we cannot know anything from this book about
Jordan himself of the Gauss-Jordan method and his original
paper and his works?

So, what I want to know is on their personal information
in detail and their works relevant to the method.
Does anybody have knowledge on this matter?
Thanks a lot in advance!

Prof. Dr. Seiji Fujino
Faculty of Information Sciences
Hiroshima City University

151-5, Ozuka, Numata-cho,
Asaminami-ku, Hiroshima, 731-31, Japan
Tel: +81-82-830-1565, Fax: +81-82-830-1657


From: Are Magnus Bruaset <>
Date: Mon, 16 Jan 1995 21:19:18 +0100
Subject: Diffpack, C++ software for PDEs

The C++ software package Diffpack is now available on netlib. Diffpack
is a collection of object-oriented class libraries designed for
numerical solution of partial differential equations. The main goal is
to provide an environment for quick prototyping of simulators for new
initial-boundary value problems. If you would like more information on
Diffpack, including access to selected demonstrations, you should
connect to the Diffpack World Wide Web home page:

The Diffpack source code and documentation can be downloaded by
anonymous ftp to (look in the directory /netlib/diffpack).
Alternatively, you can access the URL

The public access version of Diffpack is under copyright by SINTEF,
Oslo, Norway. However, permission of usage is granted for non-commercial
purposes, such as academic research. For a detailed description of the
terms and conditions, see the file "License.txt" that is distributed
together with the source code. You should also have a look at the files
"ReadMe.txt" and "Installation.txt".

The development of Diffpack is a cooperation between

- SINTEF Applied Mathematics,
- University of Oslo, Department of Mathematics,
- University of Oslo, Department of Informatics.

The project is supported by the Research Council of Norway through
the strategic technology program STP 28402: Toolkits in Industrial
Mathematics at SINTEF.

Are Magnus Bruaset, Hans Petter Langtangen,
SINTEF Applied Mathematics, Dept. of Mathematics,
Oslo, Norway University of Oslo, Norway


From: Fausto Arinos de Almeida Barbuto <>
Date: Tue, 17 Jan 1995 05:00:48 -0800
Subject: Bypassing the Pentium's Bug

Hello, Rio de Janeiro, Brazil, 11/01/95

I have developed an Assembler 80x87 routine to prevent the well-known
Pentium's bug. It's slow, but works quite well. The routine - called MyDiv -
is nchased within a program (in two flavours, Turbo Pascal and C)
which also performs the following tests:

First test: (5505001/294911)*294911 - 5505001
Second test: (4195835/3145727)*3145727 - 4195835

The performance of MyDiv is compared with the compiler instruction "/" and
with tbe coprocessor's (defective) FDIV instruction.

If you are willing to get a copy of the code please send a mail to:

(in Portuguese or English) specifying which version you want to receive,
Pascal or C, and I'll send it to you as soon as possible.

Best wishes,

Fausto Arinos de Almeida Barbuto
Rio de Janeiro, RJ, Federal Republic of Brazil
FAX:(55)(21)5986796/5986441 Phone:(55)(21)5986712


From: Hongyi Yu <>
Date: Thu, 19 Jan 1995 21:12:15 -0600
Subject: Need an Algebraic ODE Solver

I'm looking for an algebraic Ordinary Differential Equation solver written
in c++ or c. If anybody has or knows one, please tell me.
Hongyi Yu
Tulane University.


From: Aad van der Steen <>
Date: Fri, 20 Jan 1995 10:09:14 +0100 (MET)
Subject: Looking for 3rd order PDE Software.

I am looking for software for solving the a PDE problem of the form

\alpha u  + \beta u    + \gamma u  = f(x,t)
t xxx x

I would be very thankful for any pointer to such software.

Thanks in advance.

Aad van der Steen
Academic Computing Centre Utrecht
Budapestlaan 6
3584 CD Utrecht
The Netherlands
Tel : +31-30-531444
Fax : +31-30-531633
Email :


From: Richard Drake <>
Date: Tue, 17 Jan 1995 13:54:45 -0800 (PST)
Subject: Interactive FE Mesh Generation Sought

Dear Readers,

I am interested in information regarding software
programs/packages that allow INTERACTIVE finite
element mesh generation. Preferably, ones that are
not directly linked to a particular model, application,
or machine.

Any information would be most helpful.

Richard Drake
Dept. of Pure & Applied Mathematics
Washington State University
Pullman, WA 99164-3113


From: Seongjai Kim <>
Date: Wed, 18 Jan 95 10:24:56 EST
Subject: Mesh Generator and Contaminant Transport

Dear na-netters:

Now I am working on a simulating code for Contaminant Transport
problems. For an efficiency, it is natural to consider
using a modified grid (fine near wavefronts).
I am looking for a mesh generator for the purpose and some references
which explain theoretical bases and experimental results.
Please help me.

Thank you very much for your help.

Seongjai Kim E-mail:
Graduate student Phone(H): (317) 743-7927
Center for Applied Mathematics Phone(O): (317) 494-9998
Purdue University
W. Lafayette, IN 47907


From: Bruce Kellogg <>
Date: Mon, 16 Jan 1995 12:02:33 -0500
Subject: Monroe Martin Prize


MARYLAND, College Park is pleased to announce the Fifth Monroe Martin
Prize. The prize will be awarded for an outstanding paper in applied
mathematics (including numerical analysis) by a young research worker.
Candidates must be residents of North America and not more than 35 years of
age at the filing deadline. The submitted paper must be by a single author
and have been published, or accepted for publication, in the open
literature. The work must not have been performed in connection with the
completion of requirements for an academic degree, nor may it have been
performed by an author associated with the University of Maryland.

Applications from qualified candidates, or nominations, are solicited
for the Monroe Martin prize. Entries should include a copy of the paper or
contribution, with a covering letter, and for full consideration be
submitted on or before July 31, 1995 to


The award will be announced by November 1, 1995. The recipient will
be asked to present his or her work at the Monroe Martin Lecture at the
University of Maryland in December, 1995, and will be awarded a prize of
$2,000 plus travel expenses.

The Monroe Martin prize was established to commemorate the
achievements of Professor Monroe Martin, former Director of the Institute
for Fluid Dynamics and Applied Mathematics, and Chair of the Mathematics
Department at the University of Maryland. Previous prize winners are Neil
Berger, Marshall Slemrod, Jonathan Goodman, and Marek Rychlik.


From: Christine Coles <>
Date: Fri, 20 Jan 1995 15:38:55 +0000 (GMT)
Subject: Leslie Fox Prize

Second Call for Papers

Please note that the deadline for entries has been extended until
28th February 1995

The Seventh Leslie Fox Prize meeting will take place on June 26,
1995 at the University of Dundee, prior to the 16th Dundee Biennial
Conference on Numerical Analysis.

Entries for the Seventh Leslie Fox Prize competition should now be
submitted. Any person who is less than 31 years old on January 1st,
1995 and has not already won a first prize is eligible. Each entry
should consist of three copies of a paper, describing some of the
candidate's research, that is suitable for a 40 minute lecture at a
numerical analysis symposium. Whether or not the work has been
published or accepted for publication is irrelevant, but no person may
submit more than one paper. Unsuccessful candidates from previous
competitions are encouraged to enter.

The entries will be considered by an Adjudicating Committee: its
members are Prof. C.M. Elliott (Sussex, Chairman), Prof. C.T.H. Baker
(Manchester) and Prof. I.S. Duff (R.A.L.). Particular attention will
be given to the originality and quality of each paper, and to the
suitability of the material for a 40 minute talk to a general audience
of numerical analysts. Papers will be selected by the Committee by
the end of March, for presentation at the Leslie Fox Prize meeting.
Only the papers that are presented at the symposium will be eligible
for awards but, subject to this restriction, the Adjudicating Committee
may award any number of first and secondary prizes.

Entries should be received, by the Chairman, by February 28th,
1995. Each candidate should include a statement of her/his year of
birth and should indicate that she/he would be available to present
her/his paper at the symposium. A joint paper may be submitted by an
individual candidate if accompanied by a statement from the co-authors
agreeing to the submission and detailing the contribution of the
candidate to the paper. Travel funds are not generally available to
assist candidates who attend the symposium. The receipt of all entries
will be acknowledged. Any question on this notice should be addressed
to a member of the Adjudicating Committee.

Prof. C.M. Elliott
Centre for Mathematical Analysis and Its Applications
University of Sussex
Brighton BN1 9QH, UK


From: IMACS Administration <>
Date: Tue, 17 Jan 95 13:18:35 EST
Subject: SCAN-95, Computer Arithmetic

IMACS/GAMM International Symposium on
Scientific Computing, Computer Arithmetic, and Validated Numerics

September 26 - 29, 1995
Bergische Universitaet Wuppertal, Germany

Conference Themes:

Numerical and algorithmic aspects of Scientific Computing with
a strong emphasis on the algorithmic validation of results and
on algorithmic and arithmetic tools for this purpose.
"Validation" means qualitative and quantitative assertions
about computed results which are correct in a rigorous
mathematical sense, e.g.

- specification of a domain which contains a solution to a
given problem
- computation of close upper and lower bounds for the solutions
of a problem.

SCAN-95 will provide a forum for the

- presentation of the latest research and developments in
theory, algorithms, and arithmetic design for Validated
- demonstration of software for Validated Numerics
- reporting of interesting case studies in industrial and
scientific applications of Validated Numerics.

Important Dates:

NOW send your electronic AND POSTAL address to:

to be included in the mailing list
for the second announcement (February 1995)

-April 30, 1995: deadline for submitting extended abstracts
for contributed papers

-July 15, 1995: deadline for conference registration


From: Evgeny Glushkov <>
Date: Tue, 17 Jan 95 14:12:22 +0200 (MSK)
Subject: Diffraction Seminar in St.Petersburg, Russia


St.Petersburg, Russia, May 29 - 31, 1995


Prof. V.M.Babich (co-chairman), Prof. V.S.Buldyrev (co-chairman)
Dr. I.V.Andronov (secretary), Dr. V.E.Grikurov, Dr. M.A.Ljalinov,
Dr. Z.A.Janson, Dr. N.S.Zabavnikova


Mathematical problems of diffraction
Boundary-contact problems of acoustics and coatings simulation in electromagnetics
Waveguides and resonators
Scattering and propagation of acoustic, elastic and electromagnetic waves
Nonlinear waves
Propagation in random media


REGISTRATION FEE: $120, to be payed at the registration
(proceedings, lunches for 3 days, local transportation and picnic party).

Social programme includes excursion, theatre (opera, ballet) or philharmonic


**, *** and **** hotels in downtown; prices from $20 to $70 per night.

The contributors are requested to send free format synopsis to:
Prof V.S.Buldyrev
Inst. on Physics, SPb University
1 Ulianovskaja Ave., Petrodvoretz 198904
Fax +7 (812) 428-7240
(submission via e-mail is highly encouraged), and to arrange camera-ready
abstract (full A4 page in 10pt format, approximately 1000 words including
formulas, pictures and references). All papers accepted for presentation
will appear in the proceedings of the Seminar.

Submission of synopsis February 1, 1995
Notification of acceptance March 1, 1995
Submission of camera-ready abstracts April 1, 1995
Visa support and advance program April 15, 1995


DAYS on DIFFRACTION are held from the beginning of 70th. Firstly these
seminars summed up the results of an annual scientific work of St.Petersburg
(Leningrad) Diffraction School founded by academicians V.A.Fock and
V.I.Smirnov. Year by year scientists from other cities began to participate
in the Seminar, and it became annual All-Union summer scientific meeting.
DAY on DIFFRACTION is international since 1991. Scientists from USA,
Canada, UK, France, Sweden, Finland, Germany, Japan participated in DD.
The report on "DD'92" is written by Professor Jull [Report on Day on
Diffraction-92. IEEE AP Magazine, vol.34, no.6, Dec. 1992; The Radioscientist,
vol. 4, no.1, March 1993]. The report on "DD'94" by Professor Bridge is
published in Nondestr. Test. Eval., 1994 Vol. 11 [see also South bank news,
Autumn 1994.


From: Jie Shen <>
Date: Wed, 18 Jan 1995 11:21:52 -0500
Subject: Workshop on Intertial Manifolds in China

Second announcement and call for paper


JUNE 19-22, 1995, Xi'an, CHINA

A workshop on Inertial Manifolds, Approximate Inertial Manifolds
and Related Numerical Algorithms is scheduled to take place at the
Research Center for Applied Mathematics of Xi'an Jiaotong University
during the period of June 19-22, 1995.

Themes of the workshop will range from basic theoretical research to
scientific applications, including:

Theory of inertial manifolds and approximate inertial manifolds;

Numerical Analysis of the Nonlinear Galerkin method and of the
Incremental unknown method;

Implementation of the Nonlinear Galerkin method and the Incremental
unknown method;

Implementation on parallel computers and with domain decomposition;

Applications to meteorology, Slow manifolds;

Long time behavior of infinite dimensional dynamical systems.

Shui-Nee Chow (Georgia Tech, USA) Ciprian Foias (Indiana, USA)
David Gottlieb (Brown, USA) Daqian Li (Fudan, China)
Kaitai Li (Xi'an, China) Jacque-Louis Lions (Chair: France)
Jie Shen (Penn State, USA) Roger Temam (Cochair: Orsay, France)
Shing-Tung Yau (Harvard, USA)


M. Chen (Penn State, USA) S.N. Chow (Georgia Tech, USA)
A. Debussche (Orsay, France) T. Dubois (Orsay, France)
D. Gottlieb (Brown, USA) B.L. Guo (IAPCM, China)
A.X. Huang (Xi'an, China) M. Jolly (Indiana, USA)
I.G. Kevrekidis (Princeton) M. Kwak (Kwangju, Korea)
K.T. Li (Xi'an, China) K.N. Lu (BYU, USA)
O. Manley (DOE, USA) M. Marion (Lyon, France)
B. Nicolaenko (Arizona State) R. Russell (Simon Fraser)
J. Shen (Penn State, USA) R. Temam (Orsay, France)
E. Titi (Ervine, USA) L. Vozovoi (Haifa, Israel)
S.H. Wang (Indiana, USA) J. Xu (Penn State, USA)
S.T. Yau (Harvard, USA)

In addition to the invited lectures, we anticipate to select a small
number of contributed lectures. The proceeding of the workshop is
expected to be published by The World Publishing Company.

Potential contributors should submit, no later than Feb. 1, 1995,
an abstract of no more than one page to:

Professor Jie Shen Professor Kaitai Li
Department of Mathematics Research Center for Applied Math
Penn State University Xi'an Jiaotong University
University Park, PA 16802, USA Xi'an 710049, China
Tel: 814-863-2036 Tel: (86) 29-335011 ext. 3116
Fax: 814-865-3735 Fax: (86) 29-3237910

Updated information of the workshop will be made available
a) via anonymous ftp to ( in the
directory: pub/shenj/im-aim, and
b) through World Wide Web at URL:


From: Eric Van de Velde <>
Date: Wed, 18 Jan 1995 14:52:27 -0800
Subject: Symposium in Honor of Herbert B. Keller


The Department of Energy, the Engineering and Applied Science
Division of the California Institute of Technology, and the
Center for Research on Parallel Computation are sponsoring a
two-day symposium to honor Herbert B. Keller on the occasion
of his 70th birthday.

The evening of June 19th, there will be a reception and banquet
dinner at the Athenaeum (the Caltech faculty club).

When: June 19th and 20th, 1995

Where: California Institute of Technology,
Pasadena, California

Eusebius Doedel, Concordia University
Donald Estep, Georgia Institute of Technology
Roland Glowinski, University of Houston and Universite de Paris
Gene H. Golub, Stanford University
Tom Hagstrom, University of New Mexico
James Keener, University of Utah
Joseph B. Keller, Stanford University
Heinz O. Kreiss, University of California at Los Angeles
William Langford, University of Guelph
Peter Lax, New York University
Philip G. Saffman, California Institute of Technology
Andrew B. White, Jr., Los Alamos National Laboratory


Symposium registration deadline: May 15th

Registration*: $50.00 (regular)
$20.00 (students)
* (includes breakfast and lunch)

Dinner: $50.00 per person (regular) and
$20.00 per person for students
(one guest per student at reduced rate)

For more information and/or to register:
check out our WWW page
send email to
call JoAnn at 818-395-4562
send a letter to
Applied Mathematics 217-50
Pasadena, CA 91125


From: Emilio Spedicato <EMILIO@UNIBG.IT>
Date: Thu, 19 Jan 1995 16:33:04 -0500 (EST)
Subject: Conference on ABS Methods

Beijing, June 1-3, 1995

ABS methods are techniques that have been developed since 1984 to unify
algorithms for solving linear and nonlinear equations and optimization
problems, starting from a paper of Abaffy, Broyden and Spedicato in
Numerische Mathematik. Present ABS literature has more than 250 works and
numerical experiments have shown that these methods can be implemented in a
numerically stable way and can be faster than standard methods on
vector/parallel machines. Following a first conference in Luoyang, the
second ABS conference is planned in Beijing, June 1-3. Notice that the
optimization ICOTA conference is planned for June 5-8 in Chengdu.
Registration fee is 250 US$, including lunches and dinner banquet. Papers in
the area or in related linear algebra and optimization areas are invited.
Proceedings will be published. For further information contact the
conference chairman prof. Deng Naiyang, Dept Basic Sciences, Agricultural
Engineering University, Quinghua Donglu, Beijing 100083, fax +86 1 2016320 or
prof. E. Spedicato, Dept Mathematics, University of Bergamo, fax +39 35
234693, email emilio at ibguniv.bitnet. For information on ICOTA conference
contact prof. Juping Xu, fax +86 28 5582670.


From: Rod Smith <>
Date: Fri, 20 JAN 95 09:58:41 BST
Subject: Boundary Element Conference

to be held at
17-19 July 1995

The meeting aims to foster the interchange of ideas at every level on
the applications, mathematics and numerics of boundary element techniques.
Of particular interest this year are applications to computational fluid
dynamics and high performance computing, in addition to the more traditional
applications. If your interest is in three-dimensional elastic crack
problems, then I would be pleased to assist in any way including
forwarding abstracts.

FINAL CALL FOR PAPERS: If you wish to contribute a paper for consideration by
the review panel please send an abstract of no more than 300 words
to the address below. The camera ready manuscript of the final full length
paper must be received by 17 March, 1995 if it is to be published in the
conference proceedings.

Wessex Institute of Technology
Ashurst Lodge, Ashurst
Southampton SO40 7AA, UK
Tel: 44 (0) 703 293223
Fax: 44 (0) 703 292853


From: Trini Flores <>
Date: Fri, 20 Jan 95 10:26:26 EST
Subject: Conference on Geometric Design

Fourth SIAM Conference on Geometric Design
Sponsored by SIAM Activity Group on Geometric Design

November 6-9, 1995
Loews Vanderbilt Plaza Hotel, Nashville, Tennessee


This conference will bring together researchers from academia,
industry, and government to discuss the mathematical and
computational problems associated with the application of
geometry to current problems of design, manufacturing, and the
representation of physical phenomena. The conference will focus
on curve and surface design, solid modeling and computer-aided
design and manufacturing, geometric algorithms, and applications
in such areas as computer vision, geosciences, graphics, medical
imaging, robotics, and scientific visualization.

What is New About the Conference?
In response to requests from attendees of previous meetings,
there will be several changes in the format of the conference.
First, the length of the conference will be reduced from 5 days
to 4. The number of parallel sessions will also be reduced from 4
to 2 for Minisymposia, and from 4 to 3 for Contributed Focus

The challenge to the organizing committee was to provide a forum
for all SIAM members to present their research within a format
with fewer days and fewer parallel sessions. As in the past,
there will be no refereeing of papers. We believe in the free
and immediate flow of ideas. However, to accomplish this
organizational feat, we have redirected the minisymposia, changed
the format of the contributed sessions which will now be called
Contributed Focus Sessions, and reinstated the poster session.


Applications of Wavelets in Computer Graphics and Geometric Modeling
Anthony D. DeRose, Department of Computer Science, University of Washington

Subdivision Schemes for the Design of Curves and Surfaces
Nira Dyn, School of Mathematical Sciences, Tel-Aviv University, Israel

Inventing, Solving and Proving a CAGD Business
Thomas Jensen, Design Software Group, Evans & Sutherland Computer
Corporation, Salt Lake City

CAD and Creativity
Binh Pham, School of Computing and Information Technology
Griffith University, Australia

Offset Surfaces and the Geometry of NC Milling
Helmut Pottmann, Institut fur Geometrie, Technische Universitat
Wien, Austria

Global Methods for Shaping NURBS Surfaces
Ramon F. Sarraga, Department of Computer Science, General Motors
Research Laboratories

Physics-Based CAGD and Visual Data Analysis
Demetri Terzopoulos, Department of Computer Science, University
of Toronto, Canada

Title to be announced
Kevin Weiler, Autodesk, Inc., Sausalito, California

Each minisymposium will be a two-hour session consisting of four
presentations on a topic in an emerging research area. There
will be a total of 8 minisymposia. A list of minisymposium topics and
organizers follows:

Pythagorean-Hodograph Curves
Gudrun Albrecht, Technische Universitat Muenchen, Germany

Surfaces on Surfaces
Peter Alfeld, University of Utah

Surface Reconstruction
Tom Foley, Arizona State University

Shape Optimization and the Creation of Fair Surfaces
Gunter Greiner, Universitat Erlangen, Germany and Tom Lyche,
University of Oslo, Norway

Rapid Prototyping
James U. Korein, IBM Thomas J. Watson Research Center

Scientific Visualization and Grid Generation
David Lane, NASA Ames Research Center

Reverse Engineering
Tamas Varady, Computer and Automation Research Institute, Hungary

Multiresolution Modeling
Joe Warren, Rice University

To obtain information and guidelines for preparing and submitting extended and
short abstracts, send your request to:

Deadline for submission of contributed abstracts: MAY 8, 1995.

Rosemary E. Chang (Co-chair), Silicon Graphics Computer Systems
Larry L. Schumaker (Co-chair), Vanderbilt University
Morten Daehlen, SINTEF, Norway
Gerald E. Farin, Arizona State University
Rida T. Farouki, University of Michigan, Ann Arbor
Thomas Jensen, Evans & Sutherland Computer Corporation
Alan K. Jones, Boeing Computer Services
Thomas Sederberg, Brigham Young University
Hans-Peter Seidel, Universitat Erlangen, Germany
Andrew Worsey, Middle Tennessee State University


From: (Karsten M. Decker)
Date: Tue, 17 Jan 1995 08:33:35 +0100
Subject: 17th SPEEDUP Workshop

17th SPEEDUP Workshop on Parallel and Vector Computing
"Hardware and Software Trends in High-performance Computing"

March 16 -- 17, 1995
Hotel Cadro Panoramica
Cadro (Lugano)

The dramatically increasing complexity of software for modeling
and simulation of phenomena in natural and engineering sciences
and in industry forces us to find new ways to cope successfully
with the related software problems. The 17th SPEEDUP workshop on
"Hardware and Software Trends in High-performance Computing"
tries for the first time to bring together the computational and
computer science communities in Switzerland. The workshop is
jointly organized by the SPEEDUP society and the Special Interest
group for Parallel Computing (SIPAR) of the Swiss Informatics
Society (SI).


Overview of State-of-the-art High-performance Computer Systems,
F. Hofmann, University of Erlangen, Erlangen

Programming Languages and Compilers for Parallel Computing,
T. Gross, CMU, Pittsburgh and ETHZ, Zurich

Programming of Scalable HPC Systems: Tools and their Application,
T. Bemmerl, RWTH, Aachen, and Intel ESDC, Munich

New Trends in Computer Hardware Technology,
E. Schenfeld, NEC Research Institute, Princeton

Digital Hardware Architectures for Neural Networks,
P. Ienne, EPFL, Lausanne

Programming in Distributed Computing Environments,
S. Ross, Cray Research Inc., Eagon

Software Engineering in Experimental Physics: Experience,
Status, and Trends, A. Daneels, CERN, Geneva

Problem-solving Environments: Methodologies and Basic Techniques,
K.M. Decker, CSCS, Manno

Problem-solving Environments: Towards an Environment for
Engineering Applications, R. Gruber, CSCS, Manno

Using MPP for Decision Support in VLDB's - Transforming the
Enterprise, T. Azaz, Meiko Ltd., Bristol

Methods for Data Mining,
R. Breckenridge, Sandoz Pharma Ltd., Basel

The Future of high-performance Computing: How Can we Achieve
Mutually Beneficial Collaboration between Computational and
Computer Scientists ?, Discussion Session

The detailed program as well as a registration form can be
obtained by sending e-mail to, subject 17th
SPEEDUP Workshop.

Karsten M. Decker, CSCS


From: Bernard Rousselet <>
Date: Fri, 20 Jan 95 12:12:01 +0100
Subject: Urgent Position in Nice, France

Due to a cancellation we have a 5 months professor position in university
Nice sophia antipolis: to teach numerical mathematics in second year of
university; locally the research interests are in PDE theory and
computations, optimization of geometrically non linear structures;
the candidate should have a position out of France! and send a'dossier de
candidature' which should arrive before end of january!!
Il est indispensable de bien maitriser le francais!!

a bientot

Bernard Rousselet fax 93 51 79 74

Laboratoire J.A. Dieudonne URA CNRS 168
Universite de Nice Sophia-Antipolis Parc Valrose
BP 71 06108 NICE CEDEX 2


From: Paul Concus <>
Date: Mon, 16 Jan 1995 11:49:38 -0800
Subject: Postdoc Position at Lawrence Berkeley Laboratory

The University of California Lawrence Berkeley Laboratory invites
applications for a postdoctoral research fellowship. The fellow, who
will be a member of the LBL Mathematics Department, will work in a group
consisting of polymer scientists, engineers, and applied mathematicians
on problems involving polymer physics and non-newtonian flow. The
position is for one year, beginning in the fall of 1995, with
possibility of renewal for a second year. Interested persons should send
a curriculum vitae and the names of three references before February 28,
1995 to Prof. Alexandre Chorin or Prof. Morton Denn, c/o Staffing Office
(PHY3066), Bldg. 938A, Lawrence Berkeley Laboratory, University of
California, Berkeley, CA 94720. Lawrence Berkeley Laboratory is an
affirmative action/equal opportunity employer.


From: Deb Calhoun <>
Date: Wed, 18 Jan 95 14:25:33 -0600
Subject: Postdoc Position at Ames DOE Laboratory

Iowa State University
Ames DOE Laboratory

The Applied Mathematical Sciences group of the Ames DOE
Laboratory at Iowa State University has a postdoctoral position
available in computational wave propagation, contingent upon funding.
The successful candidate will work with an established group on
computational aspects of multidimensional, time- and
frequency-domain, direct and inverse wave propagation problems
relating to acoustic, electromagnetic, and seismic modeling. A PhD
in applied or computational mathematics, or in a related area of
physical science or engineering, is required. Experience in
computational modeling in an applied science area and a strong
background in the physics of wave propagation are desirable.
Applicants should send a vita and arrange to have three
letters of recommendation sent to: Lou Fishman, 136 Wilhelm, Ames
Laboratory, Iowa State University, Ames, IA 50011. An EEO/AA


From: C. Walshaw <>
Date: Tue, 17 Jan 1995 16:56:34 +0000 (GMT)
Subject: Postdoc Positions at University of Greenwich, London


The Centre is one of the largest research groups in Europe with
its focus upon computational modelling and software technologies.
It is led by five professors (Mark Cross, Martin Everett, Ed
Galea, Brian Knight and Koulis Pericleous) with 15 other academic
and research staff, 30 PhD students and 60+ Masters students.

The Centre has vacancies for FOUR postdoctoral fellows with
appropriate research experience to work on projects involving:

computational modelling of magnetohydrodynamics in
materials/metals processing
(funded by EPSRC)

computational modelling of metals casting processes
(funded by EPSRC, BAe and Rolls Royce)

computational modelling of materials processes for
electronics communication systems
(funded by Govt SRB and STC)

tools and techniques for parallelising scientific
(funded by JISC).

The appointments are initially for a fixed term (eg. typically 2
years), although there is potential eventually for much longer
contracts for appropriate candidates. Salaries are extremely
competitive and working conditions are excellent. The Centre has
a large network of high quality workstations with excellent
visualisation and video-making facilities. It also has a number
of high performance parallel computing systems including a 28
node i860 based Transtech PARAMID with a peak performance of 1.4

If you are interested in one of the above positions please either
contact or send your CV and letter of application to:

Professor Mark Cross
Centre for Numerical Modelling and Process Analysis
University of Greenwich
Wellington Street
London SE18 6PF.

Tel: 44-(0)181-331-8702
Fax: 44-(0)181-331-8695


Date: Fri, 20 Jan 95 12:31 BST
Subject: Position at Royal Military College of Science

Royal Military College of Science
Cranfield University Shrivenham.

Applied Mathematics & Operational Research Group

Applications are invited for a post of lecturer to join the Applied
Mathematics and Operational Research Group at RMCS, Shrivenham,
which is a faculty of Cranfield University but situated in
south west Oxfordshire.

The research interests of the group include mathematical modelling,
numerical methods, scientific software and simulation. Research is funded
by contracts with both defence and non-defence industries and by EPSRC

The group is responsible for all the Mathematics, Statistics and
Operational Research teaching within RMCS. This includes commitments to a
wide range of courses.

The group also manages and teaches the modular MSc programs in
Scientific Applications Software, Numerical Methods & Software Systems,
Mathematical Modelling and in Military Operational Research. These courses
are taken by both full and part time students and the first two have
been accepted by the EPSRC as suitable for the award of Advanced Course

Applications are invited from candidates with compatible research and
teaching interests. Applicants with experience relevant to the
computational activities of the group will be particularly welcome.

Further particulars and application forms may be obtained from the
Personnel Office, Cranfield University, RMCS, Shrivenham Wilts SN6 8LA.
Tel 0793 785758 quoting reference SDM15.

Informal enquiries may be made to Dr J M Aitchison, tel : 0793 785276,
email : or


From: Richard Brualdi <>
Date: Mon, 16 Jan 1995 10:25:09 -0600 (CST)
Subject: Contents, Linear Algebra and its Applications

Contents Volume 214

David London (Haifa, Israel)
Diagonals of Matrices Stochastically Similar to a Given Matrix 1

Songqing Ding and William H. Gustafson (Lubbock, Texas)
A Question of Guralnick About Reflexive Algebras 11

Jeffrey C. Lagarias (Murray Hill, New Jersey) and Yang Wang (Atlanta, Georgia)
The Finiteness Conjecture for the Generalized
Spectral Radius of a Set of Matrices 17

Roger A. Horn (Salt Lake City, Utah) and Dennis I. Merino (Hammond, Louisiana)
Contragredient Equivalence: A Canonical Form and Some Applications 43

Marc Artzrouni and Xuefeng Li (New Orleans, Louisiana)
A Note on the Coefficient of Ergodicity of a Column-Allowable Nonnegative
Matrix 93

Chi Song Wong (Windsor, Ontario, Canada), Joe Masaro (Wolfville, Nova Scotia,
Canada), and Weicai Deng (Guangzhou, China)
Estimating Covariance in a Growth Curve Model 103

Roberto Costa (Sao Paulo, Brazil)
Shape Identities in Genetic Algebras 119

Miroslav Fiedler (Prague, Czech Republic)
An Estimate for the Nonstochastic Eigenvalues of Doubly Stochastic Matrices 133

Bernd Fritzsche, Bernd Kirstein, and Vera Krug (Leipzig, Germany)
Caratheodory Sequence Parametrizations of Potapov-Normalized Full-Rank
Jq-Elementary Factors 145

Wayne W. Chen (Moorhead, Minnesota)
A Proof of the Generalized Picard's Little Theorem Using Matrices 187

Desmond J. Higham (Dundee, Scotland)
Condition Numbers and Their Condition Numbers 193

Krzysztof Przeslawski (Zielona Gora, Poland)
Faces of Convex Sets and Minkowski Additive Selections 215

Michael K. H. Fan and Batool Nekooie (Atlanta, Georgia)
On Minimizing the Largest Eigenvalue of a Symmetric Matrix 225

Azaria Paz and Mody Lempel (Haifa, Israel)
Factorization Properties of Lattices Over the Integers 247

Masatoshi Fujii (Osaka, Japan) and Ritsuo Nakamoto (Hitachi, Ibaraki, Japan)
Rota's Theorem and Heinz Inequalities 271

Robert Grone (San Diego, California)
BOOK REVIEW: Review of Matrices: Methods and Applications,
by Stephen Barnett 277

Author Index 281


From: Baltzer Science Publishers <>
Date: Tue, 17 Jan 1995 09:32:02 +0100
Subject: Contents, Numerical Algorithms

Numerical Algorithms, Volume 8, No. 1 - 4, 1994, ISSN 1017 1398
Editor-in-Chief: Claude Brezinski

Contents Vol. 8, No. 1, 1994

pp 1-25: Factorizations and construction of linear phase paraunitary filter
banks and higher multiplicity wavelets.
R. Turcajova

pp 27-45: Shift products and factorizations of wavelet matrices.
R. Turcajova and J. Kautsky

pp 47-81: A hierarchically consistent, iterative sequence transformation.
H.H.H. Homeier

pp 83-101: DQAINF: an algorithm for automatic integration of infinite
oscillating tails.
T.O. Espelid and K.J. Overholt

pp 103-109: Multivariate polynomial interpolation under projectivities III:
Remainder formulas.
G. Muelbach and M. Gasca

pp 111-129: Finite element methods on piecewise equidistant meshes for
interior turning point problems.
G. Sun and M. Stynes

pp 131-134: The fundamentality of translates of a continuous function on
X. Sun

pp 135-146: Linear best approximation using a class of k-major lp norms.
G.A. Watson

p 147: Book review

Contents Vol. 8, No. II-IV, 1994

pp 149-166: Approximating scattered data with discontinuities.
E. Arge and M. Floater

pp 167-184: Cyclic reduction and FACR methods for piecewise Hermite bicubic
orthogonal spline collocation.
B. Bialecki

pp 185-199: Numerical solution of positive control problem via linear
B.G Zaslavsky and A. Moskvin

pp 201-220: DECUHR: an algorithm for automatic integration of singular
functions over a hyperrectangular region.
T.O. Espelid and A. Genz

pp 221-239: A multiprojection algorithm using Bregman projections in a
product space.
Y. Censor and T. Elfving

pp 241-268: Estimates in quadratic formulas.
G.H. Golub and Z. Strakos

pp 269-291: An algorithm for the generalized symmetric tridiagonal
eigenvalue problem.
K. Li, T-Y. Li and Z. Zeng

pp 293-312: Parallelism across the steps in iterated Runge-Kutta methods
for stiff initial value problems.
P.J. van der Houwen, B.P. Sommeijer and W.A. van der Veen

pp 313-328: Two-point Pade approximants for formal Stieljes series.
S. Tokarzewski, J. Blawzdziewicz and I. Andrianov

pp 329-346: Additive Schwarz domain decomposition methods for elliptic
problems on unstructured meshes.
T.F. Chan and J. Zou

pp 347-362: Fast parallel solution of the Poisson equation on irregular domains.
D. Lee

pp 363-366: Book reviews.

Submissions of articles and proposals for special issues are to be
addressed to the Editor-in-Chief:

Claude Brezinski
Laboratoire d'Analyse Numerique et d'Optimisation
Universite des Sciences et Technologies de Lille
59655 Villeneuve d'Ascq Cedex

postal address:
Paris Drouot BP 18
75433 Paris Cedex 09

Requests for FREE SPECIMEN copies and orders for Numerical Algorithms are
to be sent to: E-mail:


From: M. Behara <>
Date: Sun, 22 Jan 1995 00:58:33 +0001 (EST)
Subject: Contents, Selecta Statistica Canadiana

Volume IX 1994


GUIASU, S. On Statistics of Primes 1-23

AKAHIRA, M. Second Order Asymptotic Efficiency in Terms of the Risk in
Sequential Estimation 25-38

KOFLER, E. and ZWEIFEL, P. Linear Partial Information in One-shot
Decisions 39-75

HAINES, P.D. A Closed Form Solution Approach for Accurately Evaluating the
Percentage Points of the Incomplete Beta Distribution Without the Use of
an Iterative Root Extraction Procedure 77-104

GIRI, N. and BEHARA, M. Robustness of Multivariate Tests 105-140

SCHMITZ, N.J. Sequentially Planned Probability Ratio Tests: A Survey

ISBN 0-920788-08-4

Institutum Gaussianum
P.O. Box 1113, Station A
Toronto, Ontario, Canada
M5W 1G6
Fax: (905) 332-4460


From: M. Behara <>
Date: Sun, 22 Jan 1995 00:52:24 +0001 (EST)
Subject: Contents, Journal of Computing and Information

ISSN 1180-3886
Volume 4 1994


H. Wozniakowski=20

L. Plaskota

M. G=81nther

C. Pflaum and U. R=81de

B. Wohlmuth and R.H.W. Hoppe

R. Lachner, M.H. Breitner, and H.J. Pesch

K. Wilderotter
ANNULUS 111-122

K. Petras

K.-H. K=81fer
SURVEY 145-161

A. Joux

S.V. Pereverzev

Institutum Gaussianum
P.O. Box 1113, Station A
Toronto, Ontario, Canada
M5W 1G6
Fax: (905) 332-4460


End of NA Digest