NA Digest Sunday, May 17, 1998 Volume 98 : Issue 18

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

Submissions for NA Digest:

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URL for the World Wide Web:

From: Mohsen Maesumi <>
Date: Fri, 15 May 1998 16:57:46 -0500
Subject: Seeking Solvers for Heat Equation with Moving Boundaries

I appreciate any references to public or commercial solvers
for nonlinear heat equation with moving interior boundaries
(as in phase-shift interfaces) in 2 and 3D.

Does anyone have any experience with using MATLAB pdetool
with problems which contain moving boundaries?

Mohsen Maesumi


From: Peter Moar <>
Date: Sun, 17 May 1998 15:37:27 +1000
Subject: Hankel Transform

I'm searching for software routines in C or C++ that perform the
Hankel Integral tranform.

The Hankel transform, a Fourier transform for a Bessel function
expansion, represents a limiting case of a Fourier-Bessel series. It
occurs in potential problems in cylindrical coordinates.

In converting the Fourier Transform from cartesian coords. to
cylindircal we end up with a Hankel transform. I'm wanting to perform
the Hankel and inverse Hankel operations.

Does anyone know where I can get a software routine or any related
material that will help me out?

g(a) = integral(0-inf) f(t)t.J(at)dt, Hankel Transform (Fourier-Bessel)

email answers, suggestions to

Peter Moar
Optical Sciences Centere
Australian National University
Canberra ACT 0200


From: Folkmar Bornemann <>
Date: Mon, 11 May 1998 18:59:26 +0200
Subject: Change of Address for Folkmar Bornemann

As of April 1998, I have moved to Munich
University of Technology, Germany. My new
professional address and related data are:

Prof. Dr. Folkmar Bornemann
Chair for Numerical Analysis
and Scientific Computing
Center of Mathematical Sciences
Munich University of Technology
D-80290 Muenchen

Phone: +49-89-289-28 121 (office)
+49-89-289-28 122 (secretary Mandana Omidvar)
Fax : +49-89-289-28 689



From: Bonadei <>
Date: Mon, 11 May 1998 10:09:22 +0200
Subject: A New Journal, Calcolo

ISSN 0008-0624

Dario Bini
Franco Brezzi
Gianfranco Capriz
Bruno Codenotti (Managing Editor)
Sebastiano Seatzu

Douglas N. Arnold University Park, Christine Bernardi Paris, Claude
BrezinskiVilleneuve d'Ascq Cedex, Raymond Chan Hong Kong, Michel Fortin
Quebec, Israel Gohberg Ramat Aviv, Gene H. Golub Stanford, Tim N.T. Goodman
Dundee, Wolfgang Hackbusch Kiel, Jacques Louis Lions Paris, Pierre Louis
Lions Paris, Fabrizio Luccio Pisa, Yvon Maday Paris, Charles A. Micchelli
Yorktown Heights, M. Zuhair Nashed Newark, Victor Pan Bronx, Benoit
Perthame Paris, Siegried Proessdorf Berlin, Pavel Pudlak Praha, Rolf
Rannacher Heidelberg, Christoph Schwab Zuerich, Janos Simon Chicago, Josef
Stoer Wurzburg, Eugene E. Tyrtyshnikov Moscow, Nick Trefethen Oxford,
Wolfgang Wendland Stuttgart

Claudia Raviolo
Paola Favati
Gianfranco Capriz

Calcolo is a quarterly of the Italian National Research Council, under the
management of the Institute for Computational Mathematics in Pisa. Calcolo
publishes original contributions in English language to Numerical Analysis
and its Applications, and to the Theory of Computation.
The main focus of the journal is on Numerical Linear Algebra, Approximation
Theory and its applications, Numerical Solution of differential and
integral equations, Computational Complexity, Algorithmics, Mathematical
Aspects of Computer Science, Optimization Theory.
Expository papers will also appear from time to time as introduction to
emerging topics in one of the above fields. There will be a


From: IMACS Administration <>
Date: Tue, 12 May 1998 13:29:42 -0400 (EDT)
Subject: Conference Honoring David Young

(honoring Professor David M. Young)

October 18-20, 1998
University of Texas at Austin
Austin, Texas, U.S.A.

Theme: This conference is dedicated to providing an overview
of the state of the art in using iterative methods for solving
large sparse linear systems and in scientific computing.
The focus is on contributions of the past, present, and future.

More information is available at the conference Web site

You can now use the on-line registration form
as well as the form for submitting talks and/or posters.

July 15, 1998 -- titles/abtracts for talks/posters
August 15, 1998 -- early registration

Send questions to

Hope to see you in Austin in October!


From: T3D Applications Support <>
Date: Wed, 13 May 1998 10:39:02 +0100
Subject: Seminar on Fluid Flow on Parallel Machines

EPCC is organising a one day HPCI Seminar on
Simulation of Fluid Flow on Parallel Machines
Monday 8th June 1998, Lecture Theatre LT1,
Chemical Engineering Department, Imperial College, London

As part of the High Performance Computing Initiative, HPCI, EPCC will
be holding a one-day seminar entitled `Simulation of Fluid Flow on
Parallel Machines'.

This multi-disciplinary seminar is aimed at researchers who have an
interest in fluid flow or techniques in Computational Fluid Dynamics
who would like to find out more about their implementation on parallel

The list of speakers includes senior researchers from the UK working in
areas as diverse as: combustion, applications in aerodynamics, vortex
methods, and oceanography. The speakers and the talk titles for this
seminar will be:

o Prof. William P. Jones,
Department of Chemical Engineering,
Imperial College.
`Large Eddy Simulation of Complex Turbulent Flows'.

o Prof. Nigel P. Weatherill,
Department of Civil Engineering,
University of Wales Swansea.
`Parallel Computations for Aerospace Applications using Unstructured Grids'.

o Dr. Owen R. Tutty (and Mr. Kenji Takeda),
Department of Aeronautics and Astronautics,
University of Southampton.
'Parallel Vortex Methods for Viscous Flow Simulation'

o Dr. David Webb,
Southampton Oceanography Centre,
University of Southampton.
`Running a Global Ocean Model on the T3D'.

o Mr. Paul Burton,
UK Met Office.
`Running the UK Met. Office's Unified Model on the Cray T3E'.

The seminar will be held in Lecture Theatre LT1 of the Chemical Engineering
Department at Imperial College on Monday 8th June 1998. Registrations will
take place from 10.00am to 10.30am. The meeting will close at 5.00pm. There
will be space available for posters. The seminar is free, however, people
wishing to attend are requested to register beforehand.

The will be space available for posters.

Talk abstracts, and further details, including the on-line registration form
and timetable, can be found at the following URL:

or by contacting the organising committee directly at

Postal address: CFD Seminar Committee
Edinburgh Parallel Computing Centre,
James Clerk Maxwell Building,
The Kings Buildings,
The University of Edinburgh,
Mayfield Road,
Edinburgh EH9 3JZ,

Telephone: 0131 650 5030 (UK)
+44 131 650 5030 (international)
Fax: +44 131 650 6555


From: Walter Hoffmann <>
Date: Wed, 13 May 1998 13:53:04 +0200 (MET DST)
Subject: Research Position at University of Amsterdam

University of Amsterdam
Faculty of Mathematics, Computer Science, Physics and Astronomy (WINS)

Within the framework of the Computational Science Center Amsterdam,
the Korteweg-de Vries Institute (the research institute of the mathematics
department at the faculty WINS) has a vacancy for a four-year PhD research
project in `Scientific Computing' - more especially in multi-grid methods
for numerical fluid problems;

see ""
under CSA 3, or "" .

The `Scientific Computing' group is conducting theoretical research on
numerical methods and produces their practical implementations on modern

The present research concerns numerical methods for fluid flow with boundary
layers in complex geometries. In particular the use of special grids
(sparse and/or adaptive grids etc.) and multilevel methods are studied
for the Navier-Stokes equations.

The research is done in part in cooperation with research groups at CWI, MARIN
and the Delft University of Technology, and it is meant to result in a PhD
Further information from Professor P.W. Hemker ( ;
email:, or from Dr. W. Hoffmann (email:


Master's degree in Computational Fluid Dynamics or a related field
in numerical analysis. Candidates with a master's degree in mathematics,
physics or technical sciences with a strong interest in numerical and
computational methods will be given equal consideration.
Willingness to participate actively in teaching.


Appointment as a PhD student for a maximum of four years. The salary
ranges from Dfl.2,151 in the first year to Dfl.3,841 in the fourth year.

Applications, accompanied by a curriculum vitae and a list of results
should be sent to:

secretariat KdV-Institute, attn: Ms. J.S. Batson
Faculteit WINS
Universiteit van Amsterdam
Plantage Muidergracht 24
1018 TV Amsterdam
The Netherlands


From: John Coleman <>
Date: Wed, 13 May 1998 15:13:48 +0100 (BST)
Subject: Five-year Fellowships at the University of Durham

I would like to encourage young numerical analysts to apply for the
Fellowships advertised below. Do not be discouraged by the phrase
``will probably be working in the Life Sciences.'' In the past
Fellowships have been awarded to people working in other areas,
including Mathematics. The University is keen to appoint very able people,
whatever their speciality, and it would not be too difficult to argue that
numerical analysis can ``enable man to make better use of his life here on

Please note that the closing date for applications is June 5th.

John Coleman.

Addison Wheeler Fellowship

Two Addison Wheeler Fellowships are available for up to five years from 1
October 1998. The Fellowships, which are open to young men and women of
outstanding promise, were established to encourage "efforts for increased
knowledge of Man and his physical make-up so as to enable him to make better
use of his life here on earth". Successful candidates will probably be
working in the Life Sciences, but applicants from other fields who feel that
their research meets the aims of the Wheeler Fellowship are encouraged. In
certain other fields it will be possible to offer direct progression,
subject to satisfactory progress, from the Fellowship to a Lectureship.

Candidates should be under 28 years of age on taking up the Fellowship. The
salary will be within the range =A315,159 to =A322,785 on the Grade 1A scale
for Research and Analogous Staff.

Further details and an application form may be obtained from the Director of
Personnel Services, Old Shire Hall, Durham, DH1 3HP. (Tel: (0191) 374 7258
or Fax: (0191) 374 7253 to whom applications should be returned not later
than 5 June 1998. Please quote reference A781C .


From: I. J. Anderson <>
Date: Fri, 15 May 1998 10:19:29 +0100
Subject: Scholarship at University of Huddersfield

EPSRC CASE studentship in Numerical Analysis
at the University of Huddersfield, UK

A three-year CASE Project award of an EPSRC PhD studentship plus an
additional 2,600 GBP per annum is available from October 1998
with Dr I J Anderson in the School of Computing and Mathematics
--- located in a newly converted textile mill.

The project on "Robust and Efficient Discrete l_1 and l_inf Approximation",
is in co-operation with Professor M G Cox of the National Physical
Laboratory and involves the use of reliable numerical methods in
linear algebra and optimization to solve large approximation problems
in the field of engineering measurement. It will have a high
mathematical and numerical content and some contact with industry.

Applicants should have or expect a 2(i) honours degree or better
in a numerate discipline. Other relevant (eg. MSc) experience
would be welcome.

CASE students are normally fully funded only for UK residents,
but EC students may be funded on a "fees only" basis.

Closing data for applications 30 June 1998.
Note: A later start date than October may be possible in special cases.

Please contact

Dr I J Anderson or Professor J C Mason
01484 472927 01484 472680

School of Computing and Mathematics
University of Huddersfield
West Yorkshire
HD1 3DH (UK)


From: Nick Higham <>
Date: Fri, 15 May 1998 14:45:59 +0100 (BST)
Subject: Postdoctoral Position at University of Manchester

The Engineering and Physical Sciences Research Council are funding a
Research Assistantship for a project titled
``Parallel Computation of Matrix Functions''
This is a three-year post, starting August 1st 1998,
or as soon as possible thereafter.

The aim of the project is to develop new algorithms, theory and
analysis for parallel computation of some matrix functions arising in
important application areas. The functions chosen correspond to major
computational tasks arising in science and engineering problems that
currently occupy large amounts of high-performance computing time.
Since we are concerned with accuracy and stability as well as
computing time, we also aim to derive parallel techniques for
estimating condition numbers, thereby providing error bounds for the
computed quantities.

The grant is held jointly by Professor N. J. Higham in the
Department of Mathematics and Dr T. L. Freeman and Professor J. Gurd
in the Centre for Novel Computing.
The Centre for Novel Computing (CNC) (see
is an inter-disciplinary research group with a focus on (parallel)
High Performance Computing (HPC). It has HPC research tracks in
applications and algorithms (both numeric and non-numeric),
compilation, and run-time/operating systems.

Applicants should hold, or expect to complete before the start date,
a Ph.D., and should have a strong background in some or all of
numerical analysis, linear algebra, and parallel programming.
The appointment will be made at the RA 1A level, with a current
starting salary of 16,927 pounds sterling per annum.

Informal enquiries may be made to
Professor N. J. Higham
Department of Mathematics, University of Manchester
Manchester, M13 9PL, England
Phone: (+44) 0161 275 5822
Fax: (+44) 0161 275 5819

For further particulars and an application form please contact the
Office of the Director of Personnel, University of Manchester, Oxford
Road, Manchester, M13 9PL, UK (tel: (+44) 0161 275 2028, fax: (+44) 0161
275 5306, email: Closing date for applications is
June 30th 1998. Please quote reference number 349/98.


From: Corry Magrijn <>
Date: Wed, 13 May 1998 14:14:25 +-200
Subject: Contents, Mathematics of Control, Signals, and Systems

Mathematics of Control, Signals, and Systems (MCSS)
Volume 11, Number 1

D. Aeyels, R. Sepulchre and J. Peuteman,
Asymptotic stability for time-variant systems and
observability: uniform and nonuniform criteria,
MCSS 11 (1998), 1-27.

J. Leblond and M. Olivi,
Weighted $H^2$ approximation of transfer functions,
MCSS 11 (1998), 28-39.

J. Wood, E. Rogers and D.H. Owens,
A formal theory of matrix primeness,
MCSS 11 (1998), 40-78.

M. Corless and L. Glielmo,
New converse Lyapunov theorems and related results
on exponential stability,
MCSS 11 (1998), 79-100.

Information on MCSS including tables of contents is
available at its home pages:
- -
- -

Address for submissions:
J.H. van Schuppen (Co-Editor MCSS)
P.O.Box 94079
1090 Gb Amsterdam
The Netherlands

Bradley Dickinson, Eduardo Sontag, Jan van Schuppen (Editors)


From: Technical Group <>
Date: Thu, 14 May 1998 15:13:50 +0400 (MSD)
Subject: Contents, East-West Journal of Numerical Mathematics

Vol.6, No.1, 1-79

Discontinuous finite element method for second order elliptic equations
A. Agouzal

Techniques for the numerical solution of steady reaction-diffusion
systems employing Stefan--Maxwell diffusion
N.R. Amundso, E. Morano, and R. Sanders

Local multiplicative Schwarz algorithms for steady and unsteady
convection--diffusion equations
X.-C. Cai and M. Sarkis

On the construction of the Osher-$\!$-Solomon scheme for 3D
Euler equations
J. Felcman and P. Solin

A block-factorization (algebraic) formulation of multigrid
and Schwarz methods
P.S. Vassilevski


End of NA Digest