## NA Digest Sunday, May 24, 1998 Volume 98 : Issue 19

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

### Submissions for NA Digest:

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

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

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

From: Eric Miller <elmiller@cdsp.neu.edu>
Date: Wed, 20 May 1998 16:02:24 -0400
Subject: Question About Associated Legendre Functions

I am looking for publicly available code to compute first and second
kind associated Legendre functions when the argument is greater than 1.
While I have CACM algorithm 259 from netlib, I was wondering whether
anyone has an actual, tested, functioning code for this task.

Eric Miller

Prof. Eric Miller Email: elmiller@ece.neu.edu
235 Forsyth Bldg. Phone: (617) 373-8386
Northeastern University FAX: (617) 373-8627
Boston, MA 02115
WWW: http://claudius.cdsp.neu.edu/elmhome/elmhome.htm

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

From: Tamara Kolda <kolda@msr.epm.ornl.gov>
Date: Tue, 19 May 1998 18:03:17 -0400
Subject: Association for Women in Mathematics Web Site

Dear Friends,

The Association for Women in Mathematics (AWM) is pleased to announce
the creation of its new website at http://www.awm-math.org/.

This site contains information about the organization and its history,
information about ordering two popular brochures: "Profiles of Women
in Mathematics: The Emmy Noether Lectures" (online version available)
and "Careers That Count".

Further, the site has information about the many programs and awards
AWM sponsors for female mathematicians at all stages of development
such as the NSF-AWM Travel Grants for Women, NSF-ONR-AWM Workshops for
Women Graduate Students and Postdoctoral Mathematicians, AWM Alice
T. Schafer Prize for Excellence in Mathematics by an Undergraduate
Woman, AWM Louise Hay Award for Contributions to Mathematics
Education, Sonia Kovalevsky High School Mathematics Days, and Emmy
Noether Lecture Series.

Last but not least, the AWM has gathered an extensive collection of
mathematics in general, women in science, and women in general.

questions to awm-webmaster@awm-math.org.

Happy surfing,
Tamara Kolda
Web Editor for the AWM

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

From: Roger Sidje <rbs@maths.uq.edu.au>
Date: Fri, 22 May 1998 13:36:24 +1000
Subject: History Has Got It Right

As I was flipping through an old issue of SIAM Review,
23(1), Jan 1981, I stumbled across a book review which makes

The book is "LINPACK User's Guide. By J. J. Dongarra, J. R.
Bunch, C. B. Moler, G. W. Stewart. SIAM, 1979. 2nd Printing
1980, viii + 344 pp." and the reviewer is Prof. B. N. Parlett.

Let's hear him, speaking almost two decades years ago:

"It may seem strange that SIAM should publish and
review a users' guide for a set of [170] Fortran programs.
Yet history will show that SIAM is thereby helping to foster
a new aspect of technology which currently rejoices in the
name mathematical software. There is as yet no satisfying
characterization of this activity, but it certainly concerns
the strong effect which a computer system has on the efficiency
of a program.
...
"I was impressed by the diagrams which give the relative
timings of the codes in 24 different computing environments.
The accompanying discussion indicates the complications
involved in the quest for efficiency. Indeed, it is the high
status accorded to the testing phase, and the way in which
those results were able to influence the design of the package,
that makes both LINPACK and its precursor EISPACK (for eigenvalue
calculations) such striking landmarks in the vast realm of
scientific computation."

With hindsight, we can definitely say that SIAM got it right.
And Parlett himself was right in his assessment! Today, mathematical
software plays an important role in its own right. While developing
a software, we appreciate how useful we can link to a library
installed locally, how great we can surf a web repository, click and
pick a piece of code vital for our work, how we can take or share
bits and pieces of valuable software through such specialized
journals as ACM-TOMS/CALGO and Numerical Algorithms.

Early mathematical software libraries have established trends
for others to follow, and other unexpected benefits have been reaped.
For instance, out of LINPACK and EISPACK came MATLAB, which grew in
leaps and bounds and is today an indispensable tool for any
self-respecting computational scientist.

Thanks to these early insight and vision, considerable progress
has been made, providing us equipment and understanding with which
to face new challenges, of which Problem-Solving Environments
constitute today an illustrative case in point.

Roger B. Sidje
Department of Mathematics
University of Queensland.
Brisbane, Australia.

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

From: Arie Quist <a.j.quist@twi.tudelft.nl>
Date: Fri, 22 May 1998 11:41:23 +0200
Subject: Registration for HPOPT Workshop

to the last announcement of the HPOPT98 workshop
June 17 - June 19 Rotterdam.

Dear interested colleague,

Just after sending our Final announcement on Monday, our web-computer
went down because of serious disk errors. Unfortunately, it may last
until the end of next week (May 29) before the system is repaired and
our web page is up and running.

If you want to registrate or want to get more information you may wait
until the end of next week to view
http://ssor.twi.tudelft.nl/~hpopt/

but more preferrably you may sent us email at
hpopt@twi.tudelft.nl

We are very sorry for this inconvenience, but the workshop will be
worth this small extra effort for you !

Greetings from the organizing committee

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

From: Claus Fuhrer <claus.fuhrer@dna.lth.se>
Date: Tue, 19 May 1998 16:41:58 +0200
Subject: New Book, Numerical Methods in Multibody Dynamics

Book announcement: Numerical Methods in Multibody Dynamics

Our book on numerical methods in multibody dynamics has been
published now. It is available e.g. via www.teubner.de/oder.html
Information about the book's content and intention can be accessed
via the book's homepage:
http://www.teubner.de/cgi-bin/teubner-anzeige.sh?buch_no=12
This gives also access to a page with the main MATLAB m-files used
as examples in the book.

Numerical Methods in Multibody Dynamics
by Edda Eich-Soellner and Claus Fuhrer
Teubner-Verlag, Stuttgart 1998
ISBN 3-519-02601-5

Edda Eich-Soellner, Munchen (eich@informatik.fh-muenchen.de)
Claus Fuhrer, Lund (claus.fuhrer@dna.lth.se)

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

From: Peggy Siciliano <imacs@cs.rutgers.edu>
Date: Tue, 19 May 1998 10:21:57 -0400 (EDT)
Subject: Modelling and Simulation Society

FIRST ANNOUNCEMENT, CALL FOR PAPERS AND SESSION CO-ORDINATORS

MODELLING AND SIMULATION SOCIETY OF AUSTRALIA AND NEW ZEALAND INC., MODSIM
1999 MEETING

THEME: MODELLING THE CHANGING STRUCTURE OF AGRICULTURAL, HYDROLOGICAL,
TOURISM AND SOCIO-ECONOMIC SYSTEMS

Overview:
The 1999 Meeting of the recently extended Modelling and Simulation Society
of Australia and New Zealand Inc., will be hosted by the Department of
Economics and Waikato Management School, University of Waikato, Hamilton,
New Zealand over the period 6-9th December 1999. Hamilton is some 120
kilometres south of Auckland in the primarily dairy-based economy of the
mid-North Island. It is also an easy one-hour drive to the premier
tourist centre of Rotorua, which, as can be seen below, will be a feature
of the four-day meeting. Key-note presentations and contributed sessions
will be held in the Waikato Management School buildings on the University
of Waikato Campus. These modern facilities and attractive venue offer an
ideal location for the Meetings. Participants will be offered the choice
of University accommodation, some four minutes walk from the main lecture
theatres or an extensive list of motels/hotels located in the city centre.
The theme of the Meeting, which will be the inaugural meeting in New
Zealand, will draw-upon the unique characteristics of the New Zealand
environment, culture and economy. The Local Organising Committee, with
joint Convenors, Professor Les Oxley and Dr. Frank Scrimgeour, (Economics),
have involved representatives from AgResearch, the Forest Research
Institute and NIWA which we expect will add extra coverage to the 1999
Meetings.

Programme:
The 1999 Meetings will comprise the following structure. Days One and Two
will comprise key-note and parallel contributed paper sessions held at the
Waikato Management School. Day Three will comprise a morning of scientific
sessions held in Rotorua (all participants will be transported from
Hamilton to Rotorua by coach), followed by a choice of afternoon of visits
to either local areas of interest including, geothermal 'natural wonders,
geothermal power stations and trout and natural flora parks. The evening
will comprise The Meetings formal dinner and prize giving, following by
return transport to Hamilton. Day Four will follow the pattern of the
first two days. Bound and fully refereed conference proceedings will be
provided as per previous Meetings.
The Local Organising Committee wishes to follow the successful
initiatives of the 1997 Meetings by actively encouraging potential Session
Co-ordinators to contact the Committee with suggestions for potential
Topics for the Meetings. Email, mail and WWW addresses for these and
other interested parties are provided at the end of the piece. Please
feel free to publicise these addresses and the existence of the Meetings
via any group or personal WWW outlets.

Further information:
A Meetings WWW page is under construction at http://www.waikato.ac.nz/depts
/econ/modsim99 and a dedicated email address at MODSIM99@waikato.ac.nz.
Updated information including a list of key-note speakers, registration
fees and submission details and deadlines will be available by mid-1998
and will be publicised both via the WWW page outlets and hard-copy
leaflets and posters. Those who would be willing to distribute such
material could usefully contact either of the Convenors listed below.

Professor Les Oxley and Dr. Frank Scrimgeour
Department of Economics, University of Waikato
Private Bag 3105, Hamilton, New Zealand
Ph: +64 7 838 4077 and +64 7 838 4415, Fax: +64 7 838 4331
Email: loxley@waikato.ac.nz and scrim@waikato.ac.nz
Email: MODSIM99@waikato.ac.nz

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

From: Georgios Kossioris <kosioris@math.uch.gr>
Date: Wed, 20 May 1998 08:39:37 -0400
Subject: Conference on Front Propagation

EUROCONFERENCES IN MATHEMATICS ON CRETE

The University of Crete announces the following conference of the series
Euroconferences in Mathematics on Crete, sponsored by the Training and
Mobility of Researchers Programme of the Commission of the European
Union:

FRONT PROPAGATION: THEORY AND APPLICATIONS
26 July-1 August 1998
http://gorgona.iacm.forth.gr/events.htm

Organisers: P.-L.Lions (Paris-Dauphine, France), A. Majda (Courant
Institute, U.S.A.), P.E. Souganidis (University of Wisconsin, Madison &
FORTH)

Main speakers: G.Barles (Tours, France), V.Caselles (Illes Balears
University, Spain), M.Crandall (University of California at Santa
Barbara, U.S.A.), P.-L.Lions (Universit

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

From: Rolf Jeltsch <jeltsch@math.ethz.ch>
Date: Sat, 23 May 1998 11:16:45 +0200 (MET DST)
Subject: Teaching and Postdoctoral Positions ETH, Zurich

Teaching Assistant Positions / Postdoctoral Position(s)

The Seminar for Applied Mathematics (SAM) will have several open positions.
These are teaching assistant/postdoctoral positions.
In both cases the successful candidate has to give tutorials. Initially this
can be done in English but after at most one year it should be done in German.
On the postdoctoral level the candidate is supposed to do research and support
research in applications areas of the SAM. Teaching assistants are supposed to
work towards the Ph.D. degree in addition to the regular teaching. The main
research areas of the SAM are numerics of partial differential equations,
especially hyperbolic nonlinear conservation laws with applications in fluid
mechanics, finite element methods and boundary element methods. At least two
positions will be involved with research projects, one on the inverse
formulation of the Euler equation of gas dynamics, the other one is concerned
with Large Eddy Simulation.

For further information contact

Prof. Dr. Rolf Jeltsch
Seminar f\"ur Angewandte Mathematik
ETH Z\"urich
CH-8092 Z\"urich
Switzerland
Phone: +41 1 632 3452
Fax: +41 1 632 1085
email: jeltsch@sam.math.ethz.ch

For more information on the Seminar for Applied Mathematics see our webpage:
http://www.sam.math.ethz.ch

Applications, with a Curriculum Vitae, should be sent to the above address by
June 15, 1998.

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

From: Michele Benzi <benzi@c3serve.c3.lanl.gov>
Date: Mon, 18 May 1998 10:29:08 -0600 (MDT)
Subject: Staff Positions at Los Alamos National Laboratory

Technical Staff Member Positions
Los Alamos National Laboratory
(PARALLEL COMPUTATION AND SPARSE LINEAR ALGEBRA)

The Scientific Computing Group of Los Alamos National Laboratory is
currently seeking highly qualified researchers in parallel computing and
sparse linear algebra to participate in an interdisciplinary research and
development effort in high performance computing for large-scale physical
modeling and simulation problems. Researchers with experience in the
following categories are encouraged to apply:

Parallel Computer Programming
Numerical Linear Algebra
Software Library Development
Parallel Applications Development
Iterative Linear Solver Methods
Parallel Preconditioning Techniques
Geometric and Algebraic Multigrid Methods

Participants will assist in developing innovative algorithms and codes
in conjunction with LANL/DOE projects such as ASCI as well as industrial
collaborations seeking to perform multibillion gridcell computations
on parallel platforms of up to 100 Tflops and beyond.

Expertise and experience in iterative linear solution techniques such as
generalized conjugate gradient methods, preconditioning techniques such as
incomplete LU preconditioning, domain decomposition methods, and geometric
and/or algebraic multigrid and multilevel methods is desirable.
Professional-level experience in programming and software development on
parallel computers using message passing and Fortran 90 or C is desirable.
A Ph.D. in applied mathematics, computer science or related
technical field, or equivalent combination of technical degree(s) and
experience is required. A "Q" clearance or ability to obtain one is highly
desirable.

Technical staff positions at Los Alamos National Laboratory offer
competitive salaries and a generous benefits package. Team members have
travel budget.

Further information about currently available positions may be found at

http://www.hr.lanl.gov/scripts/jobs/Single.idc?ReqNumber=983107

Information regarding the technical content of these efforts can be found at
the Parallel Architectures and Algorithms Team web site

http://www.c3.lanl.gov/cic19/teams/par_arch/par_arch.shtml

Instructions on how to apply for these positions may be found at

http://www.hr.lanl.gov/html/jobs/apply_external.html

Individuals interested in obtaining further information on these positions
may contact Michele Benzi for further information:

Michele Benzi
Los Alamos National Laboratory
Group CIC-19, MS B-256
Los Alamos, NM 87545

EMAIL: benzi@lanl.gov

Los Alamos National Laboratory, a world-class multidisciplinary research
facility, is engaged in state-of-the-art research in areas such as advanced
computing, computer simulation and computer modeling, sensors and
instrumentation for complex experimentation and measurements, nuclear
weapons, earth and environmental science, bioscience and biotechnology,
materials science, and nuclear science, plasmas, and beams.
Los Alamos is located between the majestic Sangre de Cristo and Jemez
mountain ranges of northern New Mexico and is near the cultural and resort
centers of Santa Fe and Taos, NM.

Los Alamos is an equal-opportunity employer.

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

From: Deepak Srivastava <deepak@nas.nasa.gov>
Date: Thu, 21 May 1998 18:54:23 -0700
Subject: Summer (and Longer) Visiting Positions at NASA Ames

Hi Folks:

We have a new program under which I am looking for qualified applicants (US
citizen only) for summer or longer visiting positions to work on algorithm
development and parallel implementation of scientific application codes, such
as for Monte Carlo and classical/quantum Molecular Dynamics methods, on shared
memory and/or message passing NAS parallel supercomputers.

The Education Associates Program is open at all - BS, MS, Ph.D, PostDoc and
Faculty Fellow - level for persons already enrolled or working in any US
College or University. Flexible appointments for 2 months to 1 year are
possible and may start any time during the year. This is a Cooperative Space
Grant Education Program sponsored by NASA Ames to build university partnership
with Ames.

The details of the program can be found at http://edassoc.arc.nasa.gov.

Suitable candidates with background in algorithm development and parallel
implementation are strongly encouraged to contact me directly ASAP.

Thanks Deepak

Dr. Deepak Srivastava
IT Modeling and Simulation at NAS/MRJ
NASA Ames Research Center
Mail Stop T27-A1
Moffett Field, CA 94035-1000
Voice Mail: (650) 604-3486
FAX: (650) 604-3957
e-mail: deepak@nas.nasa.gov

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

From: Carlos A. de Moura <demoura@pegasus.pgcc.uff.br>
Date: Mon, 18 May 1998 14:09:36 -0300
Subject: Contents, Computational & Applied Mathematics

Computational & Applied Mathematics
V.17 No.1 (1998)
Ed. by Birkhauser-Boston and SBMAC

J.Douglas, Jr. and C.A. de Moura:
FOREWORD.
Antonio Sa Barreto and Siu-Hung Tang:
EXISTENCE OF RESONANCES IN METRIC SCATTERING.
J.Douglas, Jr., M. Kischinhevsky, P.J. Paes Leme, and A.M. Spagnuolo:
A MULTIPLE-POROSITY MODEL FOR A SINGLE-PHASE FLOW THROUGH
NATURALLY-FRACTURED POROUS MEDIA.
H.L. Frisch, B.J. Laurenzi, and J.K. Percus:
BOUNDS ON PROFILES OF INHOMOGENEOUS FLUIDS.
J.Glimm, H. Kim, D.Sharp, and T. Wallstrom:
A STOCHASTIC ANALYSIS OF THE SCALE UP PROBLEM FOR FLOW IN POROUS MEDIA.
H.B. Medeiros, D. Marchesin, and P.J. Paes Leme:
HYSTERESIS IN TWO-PHASE FLOW: A SIMPLE MATHEMATICAL MODEL.
Daniel B. Szyld:
DIFFERENT MODELS OF PARALLEL ASYNCHRONOUS ITERATIONS WITH OVERLAPPING
BLOCKS.

Abstract, key-words and some additional data may be found at URL
http://www.info.lncc.br/ABEC/mac/BROWSING.html

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

From: Thomas Hogan <hogan@math.ohio-state.edu>
Date: Thu, 21 May 1998 21:18:35 -0400 (EDT)
Subject: Contents, Journal of Approximation Theory

D. Barrios Rolan\'{\i}a, G. L\'opez Lagomasino,
A. Mart\'{\i}nez Finkelshtein, and E. Torrano Gim\'enez
On the domain of convergence and poles of complex $J$-fractions
177--200

Ping Zhou
Multivariate Pad\'e approximants associated with functional relations
201--230

Du Jinyuan
Quadrature formulas of quasi-interpolation type for singular integrals
with Hilbert kernel
231--257

Holger Wendland
Error estimates for interpolation by compactly supported radial basis
functions of minimal degree
258--272

R. A. DeVore, G. C. Kyriazis, and P. Wang
Multiscale characterizations of Besov spaces on bounded domains
273--292

Lawrence A. Harris
Coefficients of polynomials of restricted growth on the real line
293--312

On some refinements of Jensen's inequality
313--330

Jos\'e Mendoza
Proximinality in $L_p(\mu,X)$
331--343

Note

Guo Tie-Xin and You Zhao-Yong
A note on pointwise best approximation
344--347

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

End of NA Digest

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