NA Digest Sunday, December 13, 1998 Volume 98 : Issue 47

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: Richard Zhou <>
Date: Mon, 7 Dec 1998 09:50:00 -0500
Subject: Low Discrepancy Sequences

Dear NA Digest Friends:

Low discrepancy sequencies, such as Sobol, Faure or Halton sequence,
have been widely used in engineering and social science. With the
recent information explosion on Cyberspace, there should be available
on the internet (C++) codes as well as the underlying algorithms for
generating these quasi random sequencies. However, my search of the
internet has not resulted in the kind of detailed information
mentioned above. Therefore, I am writing to you for help.

I would be very grateful to you if you could point me to the web sites
that have the information about the quasi-random sequence algorithms
and/or computer (preferably C++) codes.

Thank you very much and wish you all a wonderful holiday season.

Richard Zhou

Risk Management
CIBC, Canada


From: Jacques de Swart <>
Date: Wed, 09 Dec 1998 21:44:40 +0100
Subject: Test Set for IVP Solvers

Dear colleague,

Hereby we announce release 2.0 of the Test Set for IVP Solvers, in
which a number of Initial Value Problems from several application
fields has been brought together.

The test set consists of a descriptive part and a software part. The
first part describes test problems and reports on the behavior of a
few state-of-the-art solvers when applied to these problems. The
software serves as a platform to test the performance of a solver on
a particular test problem.

With respect to the first release, the drivers have been changed
considerably. Now there is one generic driver per solver, which can
handle all problems for which the solver is applicable. Furthermore,
a new problem has been added, two more solvers (RADAU and MEBDFDAE)
are supported, the descriptions of the origin of the problems have
been made more readable, and quite some bugs have been corrected.

The test can be found at

Comments, remarks and suggestions are welcome.

Walter M. Lioen and Jacques J.B. de Swart
Centre for Mathematics and Computer Science (CWI)
PO Box 94079
1090 GB Amsterdam
The Netherlands


From: Kenneth Holmstrom <>
Date: Sat, 12 Dec 1998 00:41:56 -0800
Subject: The TOMLAB Optimization Environment in MATLAB

ANNOUNCEMENT: The TOMLAB 1.0 Optimization Environment in Matlab

The first official release of the Matlab 5 based optimization environment
TOMLAB is available at, the home page of the
Applied Optimization and Modeling group (TOM) at Malardalen University,
Vasteras, Sweden. A 160 page User's Guide in postscript format is available.
For a quick guide showing the ease of use, see the web pages.
TOMLAB 1.0 is free for academic use.

Much effort has been put on advanced design utilizing the power and
features of Matlab. The design principle is:

Define your problem once, optimize using any suitable solver.

This is possible using general gateway and interface routines, global
variables, string evaluations and structure arrays. A stack strategy for
the global variables makes recursive calls possible, in e.g. separable
nonlinear least squares algorithms. One structure holds all information
about the problem and one holds the results. TOMLAB should be seen as a
proposal for a standard for optimization in Matlab.

TOMLAB offers about 65 numerically robust algorithms for linear, discrete,
nonlinear, global optimization and constrained nonlinear parameter estimation.
It includes an advanced graphical user interface (GUI), menus, graphics and
a lot of predefined test problems. New user-defined problems are easily added.
TOMLAB has interfaces to C, Fortran, MathWorks Optimization TB, CUTE and AMPL.
Automatic differentiation is easy using an interface to ADMAT/ADMIT TB and
four types of numerical differentiation are included. Currently, MEX-file
interfaces have been developed for the commercial solvers MINOS, NPSOL, NPOPT,
NLSSOL and QPOPT. A problem is solved by direct call to a solver or a general
multi-solver driver routine, or interactively via the GUI or a menu system.

TOMLAB is very easy for the occasional user and student to use, directly
giving access to large set of solvers and algorithms. For the optimization
algorithm developer and the applied researcher in need of optimization tools
it is very easy to compare different solvers or do test runs on thousands of
problems. A tool is provided to automate the tedious work of making
computational result tables from test runs, directly making LaTeX tables
for inclusion in papers.

The TOMLAB solvers all explicitly handle bounds and linear constraints,
with an input model upper/lower bound format like NPSOL. Implemented solvers
for general NLP problems include various SQP algorithms (Schittkowski,
Gill et al., Fletcher-Leyffer, and Han-Powell). Quadratic programming
(sub-)problems are solved either with QPOPT or the TOMLAB qpSolve, which is
using an active-set method and negative curvature directions for
indefinite problems. A structural trust region algorithm for partially
separable functions on convex sets is also implemented (Conn

Nonlinear least-squares methods include Gauss-Newton with subspace
minimization, Fletcher-Xu, Al-Baali-Fletcher and the Huschens TSSM method,
combined with an active-set strategy to handle bounds and linear constraints.
The most common unconstrained algorithms are implemented: Newton, quasi-Newton
and conjugate-gradient methods. Global optimization problems without
derivatives are solved using the DIRECT and EGO algorithms (Jones et al).

For linear programming, different types of simplex algorithms are implemented
as well as the dual simplex algorithm. MIP problems are treated by
a branch and bound method and a cutting plane algorithm. Solvers are also
available for various network programs and dynamic programs.

Happy computing with TOMLAB! (Feedback is welcome)

Kenneth Holmstrom


From: Jack Carr <>
Date: Mon, 7 Dec 1998 10:30:21 GMT
Subject: ICIAM 99 in Edinburgh

ICIAM 99 in Edinburgh, 5-9 July 1999

The Fourth International Congress on Industrial and Applied Mathematics
will be held in Edinburgh from 5th to 9th of July 1999 (one week after
the 1999 Dundee Numerical Analysis Conference).

ICIAM 99 follows the tradition of its successful predecessors in Paris
(1987), Washington (1991) and Hamburg (1995). The Congress will focus
worldwide attention on the importance of mathematical and computational
methods in the solution of real world problems.

Particular themes of the Congress include:

Mathematical modelling in industry and commerce
Mathematics of biology and medicine
Mathematics of finance, investment and banking.
Mathematics in the Social Sciences
Mathematics of Geophysical and Oil Sciences
Mathematics of material science, fluid dynamics and combustion theory
Environmental and Climate change
Electromagnetism, telecommunications, semi-conductors and electronics
Cryptography and Computer Security
Signal and Image Processing
Large scale computation

For further information see the web server at

The internet information is built from the printed Second Announcement
and contains up-to-date scientific, social, transport and practical data.


From: Vadim Olshevsky <>
Date: Mon, 07 Dec 1998 17:37:17 -0500
Subject: AMS/IMS/SIAM Summer Research Conference

Joint AMS/IMS/SIAM Summer Research Conference (SRC'99)

Structured Matrices in Operator Theory, Numerical
Analysis, Control, Signal and Image Processing

Boulder, Colorado, June 27-July 1, 1999

THEMES: Structured matrices are encountered in a surprising variety of areas:
operator theory, interpolation, control, numerical analysis, coding
theory, electrical engineering and many others. In the last few years we
witnessed continuosly increasing activity in this area. Though special
sessions and minisymposia on structured matrices are usually included in the
programs of MTNS, ILAS, SIAM, and SPIE meetings, their narrow frameworks
usually allow us to focus on only one specific area of applications. The
purpose of this conference is to foster integration between the different
areas and to bring together leading researchers working on all aspects of
structured matrices.

The invited and contributed talks will focus on recent advances in the
following areas: fast algorithms for structured matrices, displacement

structure, operator theory, interpolation, computer arithmetic, numerical
accuracy, applications of structured matrices to system theory, circuits,
signal processing, adaptive filtering, control, image processing,
coding theory.

INVITED SPEAKERS include: Dario Bini (Pisa); Biswa Datta (NIU);
Patrick Dewilde (Delft); Israel Gohberg (Tel Aviv); Georg Heinig
(Kuwait); M.A.Kaashoek (Vrije University, Amsterdam); Franklin Luk (RPI);
Vadim Olshevsky (GSU); Haesun Park (University of Minnesota);
Bob Plemmons (Wake Forest); Philip Regalia (Inst. Nat. des Telecom.);
Lothar Reichel (Kent State); Leiba Rodman (College of William and Mary).

PROCEEDINGS: We expect to publish a volume of refereed proceedings with the AMS.

ORGANAZING COMMITTEE: Richard Brualdi, Gene Golub, Franklin Luk, and
Vadim Olshevsky (Chair).

SUPPORT: The conferences will be partially funded by a grant from the
National Science Foundation and perhaps others.

PARTICIPATING: ALL persons (included those submitted contributed abstracts)
who are interested in participating should request
an invitation by sending the following information to:
Summer Research Conferences Coordinator,
American Mathematical Society,
P.O. Box 6887, Providence, RI 02940,
or by e-mail to no later than March 3, 1999 .

Please type or print the following:
1.Title and dates of conference desired.
2.Full name.
3.Mailing address.
4.Phone numbers (including area code) for office, home, and fax. Email address.
5.Your anticipated arrival/departure dates.
6.Scientific background relevant to the topic of conference; please indicate
if you are a student or if you received your Ph.D. on or after 7/1/93.
7.The amount of financial assistance requested (or indicate if no support
is required).

CONTRIBUTED PAPERS: In addition to the invited talks, contributed talks will
be considered. Contributed abstracts (1-2 pages 11pt) should be received by
February 1 at
Vadim Olshevsky
Department of Mathematics and Computer Science
Georgia State University
Atlanta, GA, USA
Electronic submission is strongly encouraged. Please send a postscript file to
IMPORTANT: Those submitting contributed abstracts should also request an
invitation from the AMS Conference Coordinator (see above).

February 1, 1999 - deadline for submission of contributed abstracts to
March 3, 1999 - deadline to request an invitation from the AMS
Conference Coordinator



From: HPCFIN <>
Date: Thu, 10 Dec 1998 14:28:14 +0100 (NFT)
Subject: High Performance Computing for Financial Planning

First Announcement and Call for Papers
(Ischia - Naples, Italy, April 11-13, 1999)

The increased globalization and volatility of financial markets
and the emergence of a constant stream of derivative
securities have prompted, over the last decade, the development
of novel mathematical modeling techniques for planning financial

The pricing of derivative securities in the global markets
relies, usually, on complex Monte Carlo simulations of the
underlying stochastic processes. Nonlinear dynamics is
increasingly being adopted to model the complex stochastic market
mechanisms that drive the simulations. Large-scale optimization
models synthesize results into sophisticated risk-management

The need for accurate and - quite often - real time solutions has
prompted the community of users to look into new computing
paradigms in order to obtain the performance required by the
applications, but not available on contemporary workstations, or
even supercomputers. Alternative computing models such as high-
performance parallel computers and artificial neural networks are
gaining the acceptance of the user community.

PLANNING aims at bringing together market leaders from the
financial services and computing industries with leading scholars
to review recent developments in the interface of financial
planning and high-performance computing. Equal emphasis will be
placed on:

- meaningful and practical models that address real needs of
the user community that are currently made feasible with the
use of high-performance computing;

- software and networking issues that make the technology
easily accessible by the users.

The Conference is the outgrowth of a 3-year project funded by the
Directorade General III - Industry of the European Commission
under the INCO Program. Project participants will present the
results of this project. Papers are also solicited from the in-
ternational community of financial institutions and academia
with focus on the following topics:

- Monte Carlo simulations for princing complex derivative

- modeling market behaviour using high-frequency data;

- risk management using novel optimization techniques;

- asset and liability management for insurance and pension fund
in the global markets;

- novel computational techniques using artificial neural
networks, genetic algorithms and parallel computations.

Special attention will be given to papers that are relevant to
parallel implementations issues.

- Deadline for submission of abstracts: January 30, 1999
- Notification of acceptance: February 15, 1999
- Registration deadline: March 1, 1999

Authors wishing to present a paper are invited to submit an abstract
(maximum two pages), by e-mail or fax, to:

Prof. Stravos A. Zenios
University of Cyprus,
Kallipoleos 75
Nicosia, CYPRUS
FAX: +357-2-339063

A limited number of papers will be selected following a review by
the International Program Committee. Selected papers will be published
following the usual review process into a special issue of the
Journal of Economic Dynamics and Control.

- Thierry Van der Pyl, European Commission DG III - Industry
- Richard Olsen, Olsen & Associates, Zurich, CH

- Mordecai Avriel, The Technion, Israel
- Achille Basile, University of Naples ``Federico II'', Italy
- Marida Bertocchi, University of Bergamo, Italy
- Michael Brennan, The Anderson School, UCLA, USA
- Nikos Christofides, Imperial College, UK
- Tom Coleman, Cornell University, USA
- Pasquale L. De Angelis, Istituto Universitario Navale di Napoli, Italy
- Michael Dempster, Cambridge University, UK
- Jitka Dupacova, Charles University, Czech Republic
- Geoffrey Fox, NPAC, Syracuse University, USA
- Lucio Grandinetti, University of Calabria, Italy
- Stewart Hodges, Warwick Business School, UK
- Andrew Lo, School of Management, MIT, USA
- Eitan Muller, Tel-Aviv University, Israel
- John Mulvey, Princeton University, USA
- Soren Nielsen, University of Texas, USA
- Richard Olsen, Olsen & Associates, CH
- Paul Refenes, London Business School, UK
- Berc Rustem, Imperial College, UK
- Anthony Santomero, The Wharton School, USA
- Jaap Spronk, Erasmus University, NL
- Vincenzo Vespri, University of Florence, Italy
- Ton Vorst, Erasmus University, NL
- William Ziemba, University of British Columbia, Canada

- Almerico Murli, University of Naples ``Federico II'' and
Director of Center for Research on Parallel Computing and
Supercomputers (CPS-CNR), Italy
- Stavros Zenios, University of Cyprus, Cyprus

Marina Marino
University of Naples "Federico II", Italy

Francesca Perla
University of Rome ``La Sapienza'', Italy

at the following address:

Center for Research on Parallel Computing and Supercomputers
Via Cintia, Monte S. Angelo, 80126 Naples - Italy
FAX: +39-81-7662106



From: Kevin Burrage <>
Date: Fri, 11 Dec 1998 12:23:02 +0100 (MET)
Subject: Conference on Scientific Computing and Differential Equations

Conference on
Scientific Computing and Differential Equations
9 - 13 August 1999
Kingfisher Bay Resort
Fraser Island, Queensland, Australia

SciCADE99 is a continuation of the successful biennial conferences in
scientific computing and differential equations, the last one of which was
held in Grado, Italy in 1997. Topics covered include all aspects of numerical
methods for differential equations, as well as high performance computing,
numerical linear algebra, approximation techniques and scientific computing

The conference will be held on a TROPICAL ISLAND (Fraser Island) in a World
Heritage Listed Area.

A. Web Site

B. Invited Speakers
1. Professor John Butcher, Auckland, New Zealand
2. Professor Ernst Hairer, Geneva, Switzerland
3. Professor Tom Mitsui, Nagoya, Japan
4. Professor Linda Petzold, Santa Barbara, U.S.A.
5. Professor Eckhard Platen, UTS Sydney, Australia
6. Professor Marino Zennaro, Trieste, Italy

C. Registration Costs
Registration will be able to be done electronically through the above web site.

Early bird registration fee for SciCADE99 by May 1 $A300
Final registration fee for SciCADE99 by July 31 $A350
Student registration fee $A100

Registration after 31 July will depend on availability of facilities.

Note that, at the time of writing, approximate exchange rates are:
One Australian dollar = 0.65 US dollars = 0.37 British pounds
These rates are, of course, subject to change.

D. SCICADE minisymposia sessions
In addition to the programme of invited lectures, most of SciCADE99 will be
run as minisymposium sessions with up to three sessions in parallel. The
morning sessions will generally be organised around five thirty minute
presentations (including time for questions) and the afternoon sessions
will generally consist of four thirty minute presentations (again including

So far the following people have agreed to organise sessions. Those interested
in attending SCICADE99 can contact the below session organisers or contact the
Chair of the organising committeee (Kevin Burrage) who will put them in contact
with the relevant people.


1. Uri Ascher ( "optimization problems in differential
2. Chan Basaruddin, Heru Suhartanto, (,
"Numerical methods for DAEs"
3. Alfredo Bellen and Christopher Baker (, "Numerical methods for delay equations"
4. Claus Bendtsen,(, "Parallel methods for ODEs"
5. Hermann Brunner, ( "Numerical methods for Volterra
integral and integro-differential equations"
6. John Butcher and Luigi Brugnano, (, "Novel methods for ODEs"
7. Kevin Burrage and Tom Mitsui, ("Numerical methods for Stochastic equations"
8. Wayne Enright, (, "Software issues"
9. Jocelyne Erhel, (, "Solution of Linear systems"
10. Ernst Hairer, (, "Symplectic methods"
11. Markus Hegland, (, "To be announced"
12. Syvert Norsett and Bryn Owren, (,, "Lie Group methods"
13. Linda Petzold, (, "Numerical methods for DAEs"
14. Eckhard Platen, (, "Computational Financial
15. Bob Skeel,(skeel@cs.uiuc.ed), "Stiff and multiscale integrators"
16. Marc Spijker,(, "Stability Issues for IVP methods"
17. Jacques de Swart, (, "Software isues in ODEs"
18. Stefan Vandewalle, (, "Waveform
Relaxation Techniques"

Intending SciCADE99 participants who wish to present a 30 minute lecture but
have not yet been approached by a minisymposium organiser or those wishing to
organise a mini-symposium session are invited to contact the Chair (Kevin
Burrage) electronically.

E. Young Talent
There will be up to two "young talent" invited speakers with the same status as
invited speakers. Those wishing to be considered for the young talent
awards are invited to submit a manuscript to the SciCADE conference
organiser by May 1, 1999. The authors of the best two papers will then be
asked to give invited lectures at SciCADE99. The criteria for eligibility
are (i) candidates must be under 35 as of January 1 1999 and (ii) they
must have not completed a PhD earlier than January 1995.

F. Organising committee chair:

SciCADE99: Professor Kevin Burrage,
Department of Mathematics,
University of Queensland,
Brisbane 4072, Australia.


From: Evgenii Romensky <>
Date: Fri, 11 Dec 1998 15:48:21 +0600
Subject: Godunov Conference in Novosibirsk

International Conference
Novosibirsk, Russia
August 25-28, 1999

- Novosibirsk State University
- Keldysh Institute of Applied Mathematics RAS
- Sobolev Institute of Mathematics SB RAS

The conference is dedicated to the 70th birthday of Sergei K. Godunov
who is known around the world for his famous and pioneering works.
The main topics of the conference are closely related to the scientific
interests of Sergei K. Godunov which are:

- Differential Equations
- Numerical Methods
- Continuum Mechanics

The goal of this conference is to bring together experts from
these areas to discuss trends in mathematics and applied mathematics.

International Program Committee:

Chair: A.F. Sidorov

Co-Chairs: S.S. Goncharov, A.V. Zabrodin, A.N. Konovalov,
A.G. Kulikovskii, V.V. Pukhnachov, U.M. Sultangazin

Coordinator: E.I.Romensky

Members: B.D. Annin, P. Arminjon, N.S. Bakhvalov, M. Crouzeix,
G.V. Demidenko, R.P. Fedorenko, T.J.R. Hughes, A.M. Il'in, R. Jeltsch,
A.V. Kazhikhov, H.O. Kreiss, M.M. Lavrentiev, S. Osher, B. Parlett, B.
T. Ruggeri, V.S. Ryaben'kii, Y. Saad, D. Serre, I.D. Sofronov, B. Soni,
V.M. Titov, B. Van Leer, H. Van der Vorst, V.A. Yakubovich

Local Organizing Committee:
S.S. Goncharov (Chair), V.N. Belykh, V.P. Chuvakov, M.V. Fokin, V.M.
V.I. Kostin, S.V. Kuznetsov, T.N. Roghkovskaya, G.E. Shvedenkov, V.T.

- 45-min key lectures
- 30-min invited talks
- 20-min contributed presentations

Submission guidelines:
Contributions must be submitted electronically to
The submission should include an extended abstract using the standard LaTeX
format in no more than 1000 words, and a cover page with the ASCII format.
The cover page should contain the paper title, authors' full names and

Important Dates:

Deadline of submissions: February 20, 1999
Notification of Acceptance: May 1, 1999

Unfortunately, the number of participants is limited and the
Organizing Committee is not able to accept all contributions.

Contacting address:

Evgenii I. Romensky
Sobolev Institute of Mathematics SB RAS
4, Koptyug Prospect
Novosibirsk 630090, RUSSIA
Telephone: 7(383)2333887
Fax: 7(383)2332598


From: Bette Byrne <>
Date: Fri, 11 Dec 1998 15:32:52 +0000
Subject: Workshop on Optimisation in Computational Fluid Dynamics


One-Day Workshop on Optimisation in
Computational Fluid Dynamics

Wednesday, 13th January, 1999

University of Oxford


This one-day workshop will discuss the role of optimisation in CFD.

The meeting affords an opportunity for researchers in different
communities to pool experiences from a number of relevant areas.

The workshop will take place at Oxford University Computing
Laboratory, Wolfson Building, Parks Road, Oxford, and is planned
to begin at 10.30 a.m. with coffee.

Speakers will include:

Prof A Keane (Southampton)
Multi-level optimization in transonic wing design.

Mrs C Holden and Dr A Wright (BAe, Sowerby)
Design optimisation of aerofoils using gradient based and
stochastic search methods.

Dr V V Toropov (Bradford)
Approximation techniques for design optimisation problems
with computationally expensive and noisy functions of
domain-dependent calculability.

Dr Y Hu (Daresbury Laboratory)
Parallel control random search algorithms for design

Dr S Forth (RMCS, Shrivenham)
Automatic differentiation.

There will be a charge of 30 pounds for academics and 50 pounds for
non-academics to cover our expenses, which will include coffee, lunch and tea.
There will be a nominal charge of 15 poundsfor bona fide postgraduate
students. Please return the reply slip by Monday, 11th January, 1999,
if you wish to attend.

If you require any further information please contact:

Mrs B C Byrne
Oxford University Computing Laboratory,
Wolfson Building, Parks Road,
Oxford OX1 3QD.
Tel: (01865) 273883
Fax: (01865) 273839


From: Esmond Ng <esmond@msr.EPM.ORNL.GOV>
Date: Thu, 10 Dec 1998 12:47:32 -0500
Subject: Householder Fellowship at Oak Ridge National Laboratory

The deadline for Householder Fellowship application is December 18, 1998.
Please refer to posting in NA Digest, Volume 98, Issue 40, October 25, 1998,
for details.


From: Jun Zhang <>
Date: Sat, 12 Dec 1998 14:58:43 -0500 (EST)
Subject: Postdoctoral Position at University of Kentucky

Postdoctoral Research Position

A postdoctoral research associate position is available
immediately in the Department of Computer Science at the
University of Kentucky.

The candidate should have a strong background in applied
scientific computing and computational mathematics.
Research topics include, but are not limited to, applied
multigrid method, robust preconditioning techniques,
adaptive methods for convection diffusion problems
(Check the URL address
Programming skill (in Fortran or C) is essential and
experience with parallel computers is desirable.

Interested person should e-mail a curriculum vitae (with
full publication list and e-mail addresses of three referees)
in postscript or ASCII to Jun Zhang at
or fax it to (606)323-1971, or send a postal mail to:

Professor Jun Zhang
Department of Computer Science
University of Kentucky
773 Anderson Hall
Lexington, KY 40506-9946

Please do not have the reference letters sent.


From: David W Walker <>
Date: Tue, 8 Dec 1998 05:36:11 GMT
Subject: Postdoctoral Position at Cardiff University

Cardiff Research Fellowship
Advanced Interfaces and Tools for Computational Science and Engineering

Postdoctoral position
Department of Computer Science
Cardiff University

The Parallel and Scientific Computing Group in the Department of Computer
Science at Cardiff University is seeking qualified individuals for a Cardiff
Research Fellowship to work on a research project entitled "Advanced Interfaces
and Tools for Computational Science and Engineering." This is a two-year
postdoc position focusing on one or more of the following areas: distributed
and parallel computing for scientific and/or engineering applications, scienfic
visualisation, and the use of virtual reality environments for the analysis and
navigation of scientific data. Further details, including information on how to
apply, are available at:

The closing date for applications is 12 January 1999. The intended start date
for the position after April-October, 1999.


From: Dugald Duncan <>
Date: Tue, 8 Dec 1998 13:40:13 GMT
Subject: Faculty Positions at Heriot-Watt University, Edinburgh

Applications are invited for two Lectureships in Mathematics in the
Department of Mathematics at Heriot-Watt University, Edinburgh (UK),
available from September 1999. Candidates with research interests in
any branch of mathematics (including numerical analysis) are encouraged
to apply.

The starting salary will be within the Lecturer A scale (GBP 16,655-
GBP 21,815). Further particulars and application forms can be obtained
The Director of Personnel
Heriot-Watt University
EH14 4AS

to whom completed applications should be sent. (Overseas candidates may
apply by submitting a CV and the names of three referees, and may submit
this material by email to

Please cite reference 195/98/www in any correspondence. Informal
confidential enquiries may be channelled through the Head of Department,
Professor J Howie (+44 (0)131 451 3240,

Further information about the job can be found at

and information about the department is at

The closing date for receipt of applications is 11 January 1999.


From: Hans Schneider <>
Date: Mon, 7 Dec 1998 14:29:01 -0600 (CST)
Subject: Contents, Linear Algebra and Its Applications

Journal: Linear Algebra and Its Applications
ISSN : 0024-3795
Volume : 287
Issue : 1-3
Date : 28-Dec-1998

Special issue celebrating the 60th birthday of LUDWIG ELSNER
( 17 January 1999 )

pp 1-1

pp 3-10
Ludwig Elsner and his contributions to core, applied and numerical linear
A Bunse-Gerstner, V Mehrmann

pp 11-39
Schur-like forms for matrix lie groups, lie algebras and jordan algebras
G Ammar

pp 41-76
SR and SZ algorithms for the symplectic (butterfly) eigenproblem
P Benner

pp 77-85
Orthogonality of matrices and some distance problems
R Bhatia

pp 87-103
On finite-dimensional commutative non-hermitian fusion algebras
T Bhattacharyya

pp 105-123
On a conjugate gradient-type method for solving complex symmetric linear
A Bunse-Gerstner

pp 125-159
Hamiltonian square roots of skew-hamiltonian matrices
H Fassbender, N Mackey

pp 161-170
Spaces of symmetric matrices containing a nonzero matrix of bounded rank
S Friedland

pp 171-179
Common invariant subspaces of two matrices
A George

pp 181-189
Stability of block LDL^T factorization of a symmetric tridiagonal matrix
NJ Higham

pp 191-214
Polynomial characterizations of the approximate eigenvectors by the refined
Arnoldi method and an implicitly restarted refined Arnoldi algorithm
Z Jia

pp 215-222
Convex combinations of matrices - full rank characterization
T Szulc

pp 223-255
On the computation of the optimal H_ norms for two feedback control

pp 257-269
Relations between perron-frobenius results for matrix pencils
V Mehrmann

pp 271-288
Diagrammatic presentation of inner and outer inverses: S-diagrams
SK Mitra

pp 289-305
Two-sided bounds on the inverses of diagonally dominant tridiagonal
R Nabben

pp 307-314
The convergence of general products of matrices and the weak ergodicity of
Markov chains
M Neumann, H Schneider

pp 315-322
A note on the extended convergence of SOR for two-periodic Markov chains
W Niethammer

pp 323-336
Simultaneous schur stability

pp 337-357
The effects of inexact linear solvers in vector algorithms
P Smit, MHC Paardekooper

pp 359-371
Symmetric schemes for computing the minimum eigenvalue of a symmetric
Toeplitz matrix
H Voss

pp 373-379
Canonical angles of unitary spaces and perturbations of direct complements
HK Wimmer

pp 381-382
Author index vol. 287


End of NA Digest