NA Digest Sunday, May 23, 1999 Volume 99 : Issue 21

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

Submissions for NA Digest:

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From: Petr Prikryl <>
Date: Thu, 20 May 1999 16:54:17 +0200 (CEST)
Subject: Vlastimil Ptak

The Institute of Mathematics and the Institute of Computer Science
of the Czech Academy of Sciences announce with deep sorrow that
Professor Vlastimil Ptak passed away on May 9, 1999.

Professor V. Ptak, born 8.11. 1925 in Prague, was an outstanding
world-known mathematician. Besides functional analysis his
scientific activity involved linear algebra, real analysis and its
relation to topology, combinatorics and numerical analysis. A number
of world-renowned results are due to him: a generalization of the
open mapping principle (the Ptak spaces), extensions of separately
continuous functions, investigations concerning convergence of
iterative processes, theory of critical exponents, theory of
hermitian algebras, the method of continuous induction and its
application to iterative processes. In the last years the activity
of Prof. V. Ptak concentrated around problens concerning Toeplitz and
Hankel operators, functional models and lifting of intertwining
relations. He was for a long time the Head of the Department of
Functional Analysis in the Mathematical Institute of the Academy and
supervised a number of PhD. students. He has published more than 160
mathematical research papers.

Vladimir Muller
Petr Prikryl


From: Tamara Kolda <>
Date: Mon, 17 May 1999 12:24:16 -0700
Subject: Change of Address for Tamara G. Kolda

I have moved from Oak Ridge National Laboratory to the Computational
Sciences and Mathematics Research Department at Sandia National Labs. My
new address is...

Tamara G. Kolda
Sandia National Labs
P.O. Box 969, Mail Stop 9214
Livermore, CA 94551

Tel: +1 (925) 294-4769
Fax: +1 (925) 294-2234


From: Tom Rowan <>
Date: Wed, 19 May 1999 14:52:10 -0700
Subject: Change of Address for Tom Rowan

I've recently joined the Numerics Group at Intel. My new address is

Tom Rowan
Intel Corporation
Mail Stop EY2-03
5350 NE Elam Young Parkway
Hillsboro, OR 97124

Phone: (503) 696-2695
Fax: (503) 696-3730



From: Mohsen Maesumi <>
Date: Mon, 17 May 1999 14:05:35 -0500
Subject: Seeking Elementary Texts on Linear Programming

I am looking for elementary texts on linear programming.
It should be suitable for undergraduates with a modest
background in mathematics. Texts with simple-to-use
software or well-developed MATLAB component are preferred.
Any pointer is appreciated.

Mohsen Maesumi


From: Marcus Grote <>
Date: Thu, 20 May 1999 19:49:19 +0200 (MET DST)
Subject: Parallel Preconditioning: Release of SPAI 3.0

Dear Colleagues,

We are pleased to announce the release of the new version
of SPAI: SPAI, Version 3.0.

The code can be freely downloaded at the new SPAI homepage:

The SPAI algorithm computes a SParse Approximate Inverse (SPAI)
of a general sparse matrix for use as a preconditioner together
with an iterative method (Bi-CGSTAB, GMRES, QMR, etc ). The
SPAI algorithm was derived by M.J. Grote and T. Huckle (SIAM J.
Sc. Stat. Comput. 18(3), 1997), and further developed by S. Barnard.
The algorithm is robust, effective on ill-conditioned linear
systems, and inherently parallel. The code is written in C/MPI.

New features of SPAI 3.0:

- Matlab interface (M = spai(A,eps,..); )
- PETSc interface
- Block-SPAI

We sincerely hope that the Matlab and PETSc interfaces will make the
algorithm more user-friendly. The Block-SPAI feature takes advantage of
a possibly inherent block structure of the matrix, but has proved
to reduce computing time in many cases, even when no inherent block
structure is present.

The SPAI algorithm has demonstrated excellent scaling with increasing
number of processors across various parallel architectures, such as
the IBM SP2, T3E, and SGI Origin 2000 with the SHMEM library.

Best Regards,

Stephen Barnard (NASA Ames) and Marcus Grote (ETH Zurich)


From: P. M. Dewilde <>
Date: Fri, 21 May 1999 15:19:10 +0200 (METDST)
Subject: New Book, Time-Varying Systems and Computations


Title: Time-Varying Systems and Computations
Authors: Patrick Dewilde and Alle-Jan van der Veen
(DIMES, Delft University of Technology)
Publisher: Kluwer Academic Publishers,
Pages: 459

Summary: Time-Varying Systems and Computations provides a detailed
and consistent exposition of a powerful unifying framework
for the study of linear systems. Finite or infinite
systems of linear equations as well as linear dynamical
systems, be they time-varying or time-invariant, all fit in
the generic framework. The book bridges the gap between
classical linear algebra and dynamic system theory and
shows how central problems in each field can be solved
in a logically coherent way. Aside from the unifying frame,
the book treats problems in three main categories:
- System identification and realization
- Interpolation and approximation of systems
- Factorization and minimal representation.
Classical notions such as inner-outer factorization, Hankel
norm model reduction, interpolation and minimality pop
up, now in an algebraic context. They are treated in a
new, natural framework in which computations on diagonals
of a matrix or operator play the role that vectors play
in classical linear algebra. Because of this, the algorithmic
content of the book is high, justifying its title.

Content: 1. Introduction
Part I: Realization: 2. Notation and Properties of Non-Uniform
Spaces. 3. Time-varying State Space Realizations. 4. Diagonal
. 5. Operator Realization Theory. 6. Isometric and
Inner Operators. 7. Inner-Outer Factorization and Operator
Part II: Interpolation and Approximation. 8. J-Unitary
Operators. 9. Algebraic Interpolation. 10. Hankel-norm
Model Reduction. 11. Low-Rank Matrix Approximation and Subspace
Part III: 12. Orthogonal Embedding. 13. Spectral Factorization.
14. Lossless Cascade Factorization. 15. Conclusions.
Appendix: Hilbert Spaces Definitions and Properties.

The book is more than a research monograph, it has been carfully structured
so that it can be used as a graduate classtext.


From: George Anastassiou <>
Date: Mon, 17 May 1999 10:14:26 -600
Subject: New Book Series, Applied Mathematical Sciences

Dear Colleaques, Hi!
I, George Anastassiou, am also a Birkhauser-Boston
Consulting Editor for books in Applied Mathematical SCIENCES(A.M.S.).

Birkhauser publishes high quality strictly refereed books in
Applied Mathematical Sciences.

This message is to call for book proposals and manuscripts.
The readership for your book may be either upper level undergraduates,
graduates,or researchers in the applied mathematical sciences.

We intend to publish textbooks,single and multi-authored monographs,
proceedings (articles must be high quality and refereed),and handbooks.

Interested potential authors should send 3 hard copies of their book
proposal(about 10 pages) or 2 hard copies of their book in final
form(at least 125 printed pages),along with 2 discs with book content to

Dr.George Anastassiou
Department of Mathematical Sciences
The University of Memphis
Memphis,TN 38152
Tel (901) 678-3144 office
(901) 678-2482 secretary
(901) 678-2480 FAX
(901) 371-9752 home

Book manuscripts may be typeset in any form of tex:

Applied Mathematical Sciences books include works in Applied
Mathematics, Probability, Statistics and Computer Science.
Also their applications to other sciences.

Developing software and exercises related to the book material is
strongly encouraged if applicable.

Cordially yours
George Anastassiou
Birkhauser Consultant Editor-A.M.S.


From: Basem Attili <>
Date: Thu, 20 May 1999 11:15:56 +0300
Subject: Conference in Turkey on Biomathematics

Akdeniz University, Antalya, Turkey,
July 14 - 19, 1999

The scientific program will include one-hour plenary lectures, half-hour
lectures and poster contributions. There is a plan to publish the
conference proceedings.

Prepossessed Parallel Sessions:

1. Theory of Differential Difference Equations
2. Discrete and Dynamical Modeling
3. Cell and Molecular Biology
4. Ecology and Evolutionary Dynamics
5. Neural Networks and Applications
6. Epidemiology and Theory of Epidemics
In addition, special sessions will be organized around focused topics
that are particularly new or rapidly gaining importance.

Haydar Akca, Ovide Arino, Basem Attili, Ludwik Byszewski, Battal Ciplak,
Kayahan Fiskin, Efim Galperin, Michael C. Mackey, Hanna Parnas, Ziad Taib

For further information contact:

Prof. Haydar Akca
KFUPM-Mathematical Sciences Department - P.O.Box 1071 Dhahran 31261 -
Saudi Arabia Telephone: 966 3 860 2279 (Office) 966 3 860 6377 (Home)
Fax : 966 3 860 2340


From: Mikhail Shashkov <>
Date: Wed, 19 May 1999 12:07:51 -0600 (MDT)
Subject: Conference in Honor of Burton Wendroff


To honor BURTON WENDROFF on the occasion of his 70-th Birthday.

March 8-10, 2000
Los Alamos National Laboratory
Los Alamos, New Mexico, USA

The main theme of this conference will be the numerical
solution of systems of conservation laws but other areas
of importance for scientific computing will also be
addressed. A preliminary program can be found on the
conference web page.

Sessions for contributed papers are not planned at this time,
but all who are interested are welcome to attend.

For additional information about this conference, please visit
the conference web page mentioned above, or contact

Dr. Mikhail Shashkov
MS-B284, Group T-7, Theoretical Division,
Los Alamos National Laboratory,
Los Alamos, New Mexico, USA, 87545


From: David Harrar II <>
Date: Thu, 20 May 1999 10:49:08 +1000 (EST)
Subject: Conference in Australia on Computational Techniques

Second announcement and call for papers - CTAC99

Submissions are currently being solicited for contributed papers
in the areas of computational mathematics; scientific, technical and
industrial applications; high performance computing; and other aspects
of the computational sciences for presentation at:

The 9th Biennial
Computational Techniques and Applications
Conference and Workshops

20-24 September 1999
Australian National University
Canberra, ACT, Australia

Sponsored by: Centre for Mathematics and its Applications (CMA), ANU;
Cooperative Research Center for Advanced Computational Systems (ACSys), ANU;
Commonwealth Scientific and Industrial Research Organization (CSIRO);
Supercomputer Facility (ANUSF); Australian Partnership for Advanced Computing
(APAC); Silicon Graphics, Inc. (SGI); NEC Corporation; Fujitsu Australia;
IBM Australia; and Qantas Airlines.

The conference program will include keynote addresses from the
following Invited Speakers:

Jack Dongarra, University of Tennessee and Oak Ridge National Laboratory
Markus Hegland, Australian National University
Rainer Kress, University of Goettingen
John Lewis, Boeing Corporation
Terry Speed, University of California at Berkeley
Grant Steven, University of Sydney
Alistair Watson, University of Dundee

As part of the CTAC99 program there will also be a Public Lecture.
This will take place at the Australian Academy of Sciences on Monday
20 September and will be delivered by Prof. Jack Dongarra.

Immediately following the three days (20-22 September) of invited and
contributed presentations there will be two days of workshops. The topics
for the CTAC99 Workshops and contact information for their respective
organisers are:

Data mining (
High performance computing (
Advances in differential equations (
Scientific visualisation and virtual environments (

There will be a welcome reception on the evening of Sunday 19 September.
The conference dinner will take place on Tuesday 21 September and will be
held at The Boat House on the Lake, one of Canberra's premier restaurants.

The CTAC99 Organising Committee is:

Mike Osborne (Director), Bob Gingold (Associate Director),
David Harrar II (Secretary), Thanh Tran (Secretary),
Steve Roberts (Treasurer), Bob Anderssen, Henry Gardner,
Lutz Grosz, and Markus Hegland.

Further information, including deadlines, registration information
and electronic registration form, further contact information for workshop
organisers, and information on submitting abstracts (electronically), etc.,
is available from the conference website:

This site will be updated continuously as further information on CTAC99
becomes available.

If you have any questions regarding CTAC99 please feel free to contact:

David Harrar II
CTAC99 Conference Secretary
Centre for Mathematics and its Applications
Australian National University
Canberra ACT 0200


From: Arieh Iserles <>
Date: Thu, 20 May 99 17:36:27 BST
Subject: Foundations of Computational Mathematics Conference

Foundations of Computational Mathematics Conference
Oxford University, U.K.
July 18-28, 1999


Oxford University is hosting the Foundations of Computational
Mathematics Conference (FoCM99) in July 18-28, 1999. The mission of
the meeting is to establish a common agenda between computation, pure
mathematics and computer science. While presenting plenary talks by
foremost world authorities and maintaining the highest technical level
in workshops, the emphasis will be on multidisciplinary interaction
across subjects and disciplines, in an informal and friendly atmosphere.

The overall oversight of FoCM99 is the responsibility of the FoCM
Executive Committee whose current Chair is Arieh Iserles (University
of Cambridge). The organisation of the 1999 meeting is managed by the

John Ball (Oxford), Richard Brent (Oxford), Chris Budd (Bath),
Mike Giles (Oxford), Nick Gould (Rutherford-Appleton Labs),
Nick Higham (Manchester), Bill McColl (Oxford),
Endre Suli (Chair, Oxford), Nick Trefethen (Oxford)


John BALL (Oxford University, UK)
Ingrid DAUBECHIES (Princeton University, USA)
Jean Pierre DEDIEU (Universite Toulouse, France)
Alan EDELMAN (Massachusetts Institute of Technology, USA)
Joos HEINTZ (Universidad de Buenos Aires, Argentina)
Nick HIGHAM (University of Manchester, UK)
Robert McLACHLAN (Massey University, New Zeland)
Jorge NOCEDAL (Northwestern University, USA)
Erich NOVAK (Universitat Erlangen, Germany)
Peter OLVER (University of Minnesota, USA)
Bjorn POONEN (University of California at Berkeley, USA)
Rolf RANNACHER (Universitat Heidelberg, Germany)
Guillermo SAPIRO (University of Minnesota, USA)
Andrew STUART (Stanford University, USA)
Denis TALAY (INRIA Centre de Sophia Antipolis, France)
William THURSTON (University of California at Davis, USA)
Leslie VALIANT (Harvard University, USA)
Shing-Tung YAU (Harvard University, USA)

WORKSHOPS and their organisers:
* Analysis and approximation of infinite-dimensional problems
John Ball (Oxford) and Endre Suli (Oxford)
* Approximation theory
Ron DeVore (South Carolina) and Allan Pinkus (Haifa)
* Complexity theory, real machines and homotopy
Jean-Pierre Dedieu (Toulouse) and Pascal Koiran (Lyon)
* Computational Dynamics
John Guckenheimer (Cornell) and Robert MacKay (Cambridge)
* Computational geometry and topology
David Epstein (Warwick) and David Gabai (Caltech)
* Computational number theory
Richard Brent (Oxford) and Henri Cohen (Bordeaux)
* Geometric integration and computation on manifolds
Chris Budd (Bath) and Hans Munthe-Kaas (Bergen)
* Information-based complexity
Stefan Heinrich (Keiserslautern) and Erich Novak (Erlangen)
* Multiresolution, computer vision and PDEs
Vicent Caselles (UIB, Palma) and Wolfgang Dahmen (Aachen)
* Numerical linear algebra
Alan Edelman (MIT) and Nick Higham (Manchester)
* Optimization
Nick Gould (RAL) and Mike Todd (Cornell)
* Relations to computer science
Laszlo Lovasz (Yale) and Bill McColl (Oxford)
* Stochastic computation
Peter Kloeden (Berlin) and Dominique Picard (Paris-VII)
* Symbolic algebra and computational algebraic geometry
James Davenport (Bath) and Elizabeth Mansfield (Canterbury)

CONTACT INFORMATION: For further information e-mail
or see


From: I. G. Graham <>
Date: Fri, 21 May 1999 15:35:07 +0100
Subject: Conference on Boundary Integral Methods

Second International Conference on
Boundary Integral Methods:
Theory and Applications

11 - 15 September 2000 University of Bath, U.K.

This is a preliminary announcement for this conference which will be
held under the auspices of the Institute of Mathematics and its
Applications in association with the University of Bath.

Following the success of the first conference in this series at the
University of Salford in September 1997, the next meeting will be
held in Bath in September 2000.

Bath is a beautiful historic town about 2 hours West of London by rail and
with good links to Heathrow airport and the rest of the United Kingdom.

As of May 21st 1999, the following have agreed to give invited talks
at this conference:

W.C. Chew (University of Illinois), T. Hou (California Institute of
Technology), S.A. Sauter (University of Leipzig), I.H. Sloan
(University of New South Wales, Sydney), L. Wrobel (Brunel University, London)

Further updates to the list of speakers will be made on the conference
website at

Organising Committee: Chair - Ivan Graham (Bath), Sia Amini(Salford),
Simon Chandler-Wilde(Brunel), Ke Chen (Liverpool), Paul Martin (Manchester).

Boundary integral methods are now an established technique for the solution
of partial differential equations in science and engineering, with
applications in many diverse areas including fluid mechanics, fracture
mechanics, acoustics, electromagnetics, inverse problems and free-
and moving-boundary problems.

This meeting will provide a forum for the exchange of ideas between
academic and industrial researchers in different disciplines whose common
interest is boundary integral methods.

As well as discussing recent developments in the theory and numerical
analysis of boundary integral equations, the conference will strive to
encompass applications of contemporary relevance such as direct and inverse
(medium and high frequency) scattering, electromagnetics and moving
boundary problems in hydrodynamics. Continuing progress in key
computational techniques such as multipole, wavelets and panel
clustering, together with innovative algorithm design will be an
additional theme.

Further Information: To receive further announcements about this meeting
please write to Mrs Pamela Bye, The Institute of Mathematics and its
Applications, Catherine Richards House, 16 Nelson Street,
Southend-on-Sea, Essex SS1 1EF, United Kingdom. or send an email to:

Future announcements about the conference can also be found at the


From: Matthias Maischak <
Date: Fri, 21 May 1999 11:57:32 +0200
Subject: Faculty Positions at University of Hannover

The Faculty of Mathematics and Computer Science of the

University of Hannover (Germany)

invites applications for two positions:

Professorship (C4) in Applied Analysis
Professorship (C4) in Scientific Computing

The Applied Analysis candidate will be expected to conduct research in the
fields of Applied Analysis (e.g. dynamical systems, optimization, partial
differential equations, stochastical differential equations).

In addition to conducting undergraduate- and graduate-level
teaching of courses in the mathematical curriculum, the candidate
will also be expected to teach courses for engineers and business sciences.
The readiness for scientific cooperation with institutes of other
faculties is expected.

The Faculty of Mathematics and Computer Science is particularly interested
in applicants with distinguished research and teaching backgrounds in

The Scientific Computing candidate will be expected to conduct research in the
field of Scientific Computing.

In addition to conducting undergraduate- and graduate-level
teaching of courses in the mathematical curriculum, the candidate
will also be expected to teach courses for engineers and business sciences.
Cooperation in the new Center for Computational Engineering Science
and in a planned graduate collegue is expected as well as
scientific cooperation with other departments.

The Faculty of Mathematics and Computer Science is particularly interested
in applicants with distinguished research and teaching backgrounds in
Scientific Computing.

A habilitation or equivalent qualification is required.

A part time employment is possible.

The University intends to increase the percentage of female scientists
employed. Qualified women are strongly encouraged to apply. High
preference will be given to applications from women with equivalent
qualifications and records of academic achievement. Qualified applicants
with handicapped status will be given preference.

Applications should include: curriculum vitae, list of publications,
list of conference-talks, list of supervised thesises,
job and research training and experience as well as teaching experience and a
brief statement of research perspectives.

Deadline for applications: May 31, 1999. Address applications to:

The President of the University of Hannover
c/o The Dean of the Faculty of Mathematics and Computer Science
University of Hannover
Welfengarten 1
D - 30167 Hannover


From: Wei Guowei <>
Date: Sun, 23 May 1999 16:14:17 +0800 (SST)
Subject: Postdoctoral Position at National University of Singapore

Dear All,

I am looking for a postdoctoral research fellow to conduct research in
numerical analysis and its application to either computational physics,
or computational electromagnetics or computational structural mechanics
or computational fluid dynamics. Those who have obtained a PhD degree in
the last two years or will earn a PhD within a few months, and have
international journal publications, are eligible to apply.
For more details, please contact:

Guowei Wei
Department of Computational Science
National University of Singapore
Singapore, 119260

phone: (65) 874-6589
Fax: (65) 774-6756


From: Stefan Vandewalle <>
Date: Tue, 18 May 1999 11:50:52 +0200 (MET DST)
Subject: Research Position at K.U.Leuven, Belgium

A research fellowship at pre-doctoral or post-doctoral level
is available in the Scientific Computing Research Group of the
Katholieke Universiteit Leuven in Belgium, on the project:

"Numerical methods for differential equations with time delay".

The project deals with
(a) numerical methods for time-integration of large-scale retarded
and neutral functional differential equations, with emphasis on
methods applicable to partial differential equations with time delay;
(b) continuation and bifurcation analysis of (periodic) solutions
of retarded and neutral equations;
(c) application of the numerical methods to problems in science and
engineering, in particular to control problems.

We are looking for a candidate to work on topic (a), in close
collaboration with the researchers working on the other topics.
The position at the post-doctoral level is for one year with the
possibility of extension to a second year. The position at the
pre-doctoral level will be initially for one year. After a positive
evaluation, this position can be extended for three more years.
The fellowship includes a competitive salary and moving expenses.
The position can commence immediately. Interested candidates should
submit a detailed resume and the names and addresses of two referees
to the address given below.

The Scientific Computing research group belongs to the Division
of Numerical Analysis and Applied Mathematics of the Department
of Computer Science at the K.U.Leuven. The research of the group
focusses on the development of numerical methods, algorithms and
software for large scale simulation problems in science and engineering.
Further information can be found at the following URL:

Prof. S. Vandewalle email:
Katholieke Universiteit Leuven tel: +32-16-327654
Departement Computerwetenschappen fax: +32-16-327996
Celestijnenlaan 200A, B-3001 Heverlee, Belgium


From: Christine Cunningham <>
Date: Tue, 18 May 1999 09:50:12 -0500
Subject: Position at Wolfram Research

Wolfram Research, makers of Mathematica, has an opening for a MathLink
Developer. MathLink is the communication interface and a key component
of Mathematica. MathLink allows Mathematica to communicate with other
software over various transport protocols such as the internet. For
instance, the Mathematica front end uses MathLink to communicate with
the kernel. We are looking for strong developers to help us expand this
key technology over the coming years. You will be part of a world-class
team developing MathLink applications and core MathLink technologies.
This position requires strong cross-platform C/C++ experience.
Mathematica, Java, and network programming experience is a strong plus.
Samples of programming work are required for serious consideration.

To apply for this position, please visit our website at and complete an on-line application form or
contact us at Wolfram Research, 100 Trade Center Dr., Champaign, IL
61820; Fax: 27/398-0747. AA/EOE


From: Ruediger Weiss <>
Date: Mon, 17 May 1999 19:43:56 +0200 (CES)
Subject: Contents, Applied Numerical Mathematics

Applied Numerical Mathematics
Volume 30, Issue 2-3, June 1999
Special issue on iterative methods and preconditioners
Guest editors: Ruediger Weiss and Willi Schoenauer

Ulrike Meier Yang, Kyle A. Gallivan
A New Family of Block Methods

Boris Wagner, Ruediger Weiss
Minimization Properties and Short Recurrences

Caroline Le Calvez, Yousef Saad
Modified Krylov Acceleration for Parallel Environments

Hartmut Haefner, Willi Schoenauer, Ruediger Weiss
The Program Package LINSOL - Basic Concepts and Realization

Svetoslav Markov
An Iterative Method for Algebraic Solution to Interval Equations

Willi Schoenauer
Experiments with Search Directions for a Generalized CG Method

Seiji Fujino
Estimation of Conflict-Free Matrix Product Preconditioner
on Vector Supercomputers

Jens G. Schmidt, Gerhard Starke
Coarse Space Orthogonalization for Indefinite Linear Systems
of Equations Arising in Geometrically Nonlinear Elasticity

Lev A. Krukier
Convergence Acceleration of Triangular Iterative Methods based
on the Skew-Symmetric Part of the Matrix

Thomas Huckle
Approximate Sparsity Patterns for the Inverse of a Matrix and

Michele Benzi, Miroslav Tuma
A Comparative Study of Sparse Approximate Inverse Preconditioners

Susanne Balle, Jane Cullum
A Parallel Algorithm for Computing Eigenvalues of Very Large
Real Symmetric Matrices on Message Passing Architectures

Andrea Walther, Andreas Griewank, Andre Best
Multiple Vector-Jacobian Products are Cheap

Ruediger Weiss, Isabella Podgajezki
Overview on New Solvers for Nonlinear Systems


From: Ake Bjorck <>
Date: Wed, 19 May 1999 16:33:30 +0200 (MET DST)
Subject: Contents, BIT

CONTENTS BIT Volume 39, No. 3 (September 1999)
ISSN 0006-3835

For information to contributers and about subscriptions see

A new approach to backward error analysis of LU factorization

Reliable solution of bidiagonal systems with applications

Bounds for the entries of matrix functions with applications to
M. BENZI and G. H. GOLUB 417

Lacunary interpolation by antiperiodic trigonometric polynomials
F.-J. DELVOS and L. KNOCHE 439

Unconditionally stable splitting methods for the shallow water
R. HOLDAHL, H. HOLDEN, and K.-A. LIE 451

Stability of approximate factorization with $\theta$-methods

Indexes and special discretization methods for linear partial
differential algebraic equations

Preconditioners for ill-conditioned Toeplitz matrices
D. POTTS and G. STEIDL 513

Fast and parallel interval arithmetic
S. M. RUMP 534

A projected indefinite dogleg path method for equality constrained
J.-Z. ZHANG and C.-X. XU 555


Convergence of Gaussian quadrature and Lagrange interpolation
in Haar systems


From: Arieh Iserles <>
Date: Wed, 19 May 99 17:44:20 BST
Subject: Contents, Philosophical Transactions of the Royal Society

A special issue of Philosophical Transactions of the Royal Society A
devoted to "Geometric integration: numerical solution of differential
equations on manifolds" (volume 357, issue 1754) has just appeared.
The editors are C.J. Budd and A. Iserles and the contents are:

C.J. Budd, A.Iserles: "Geometric integration: numerical solution of
differential equations on manifolds"..............................945

H. Munthe-Kaas & B. Owren: "Computations in a free Lie algebra"...957

A.Iserles, S.P. Norsett: "On the solution of linear differential
equations in Lie groups"..........................................983

R.I. McLachlan, G.R.W. Quispel, N. Robidoux: "Geometric integration
using discrete gradients"........................................1021

C.J. Budd, G.J. Collins, W.Z. Huang, R.D. Russell: "Self-similar
numerical solutions of the porous-medium equation using moving mesh

A. Murua, J.M. Sanz-Serna: "Order conditions for numerical integrators
obtained by composing simpler integrators".......................1079

B. Leimkuhler: "Reversible adaptive regularization: perturbed Kepler
motion and classical atomic trajectories"........................1101


From: Corry Magrijn <>
Date: Fri, 21 May 1999 13:57:27 +0200
Subject: Contents, Mathematics of Control, Signals, and Systems

Mathematics of Control, Signals, and Systems (MCSS)

Volume 12 (1999), Number 1

V.A. Ungrinovskii and I.R. Petersen,
Finite horizon minimax optimal control
of stochastic partially observed time varying
uncertain systems. <BR>
MCSS 12 (1999), 1-23.

H.L. Trentelman and P. Rapisarda,
New algorithms for polynomial J-spectral
MCSS 12 (1999), 24-61.

B. Hammer,
On the learnability of recursive data.
MCSS 12 (1999), 62-79.

B.D.O. Anderson,
The realization problem for
hidden Markov models.
MCSS 12 (1999), 80-120.

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


End of NA Digest