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

- SciMark Java Benchmark Now Available
- New Sparse Matrix Visualization Tool
- New Book, Computer Methods for Ordinary Differential Equations
- Intersection of Convex Polygons
- Change of Address for Dave Bond
- Change of Address for Sebastian Reich
- Florida Workshop Honoring T. W. Anderson
- Scottish Computational Mathematics
- Conference on Rational Approximation
- Conference Honoring Bob Plemmons
- Postdoctoral Postion at University of Durham
- Position at University of Bristol
- Postdoctoral Position at Virginia Tech
- Research Position at University of Neuchatel, Switzerland
- Contents, Linear Algebra and its Applications

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

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

From: Roldan Pozo <pozo@cam.nist.gov>

Date: Fri, 21 Aug 98 17:11:49 EDT

**Subject: SciMark Java Benchmark Now Available**

SciMark, an interactive Java numerical benchmark is now available at

http://www.math.nist.gov/scimark

The SciMark benchmark consists of various kernels (FFT, Monte Carlo, sparse

matrix computation, finite-difference stencils, and LU factorization)

and is meant to provide an indication of how well Java environments

perform on numeric and scientific applications.

SciMark can be run interactively within your browser, or downloaded

to run in other Java environments. The web site includes bar-graph

comparisons between various computer/Java platforms, as well

as an archive of previous results.

Roldan Pozo

Math and Computational Science Division

NIST

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

From: Tamara Kolda <kolda@msr.epm.ornl.gov>

Date: Fri, 21 Aug 1998 17:30:57 +0000

**Subject: New Sparse Matrix Visualization Tool**

MatView: Scalable Sparse Matrix Viewer

New at Oak Ridge National Laboratory!

MatView is a handy tool for viewing and exploring large sparse

matrices. Using MatView, a sparse matrix with millions of elements

can be reduced to a graphically viewable size for overviews of the

high-level structure, or a detailed view can be obtained by zooming

in and navigating through small regions of the matrix.

MatView provides:

* Scalability: Efficient Viewing of Very Large Matrices.

* Easy Thumbnail Navigation, and Zooming In & Out of Matrix Details.

* A Variety of Data Reduction Functions (Avg, Min/Max, Sum, Std, Var).

* Custom Color Adjustments, or Greyscale Rendering.

* Viewing of Matrix Pattern Only, If Desired.

* Printing of Matrix Views, or Saving Views as PostScript / PPM.

* Compatibility with Matrix Market Format, Harwell-Boeing Format,

and Matlab MAT Files.

* Loading of Compressed or Gzipped Matrix Files.

Software Download:

The MatView 1.0 Alpha Software is available for FREE DOWNLOAD

from the MatView Home Page, at:

http://www.epm.ornl.gov/~kohl/MatView

Please feel free to download MatView and give it a try!

Project Status:

MatView is built using the Tcl/Tk system, and so should theoretically

run anywhere that Tcl/Tk runs (so far tested only on Unix platforms).

MatView is an ongoing project, with ever-continuing user interface

additions and improvements, and there are plans to add pluggable

modules for simple matrix transformations, matrix graphing support,

and support for more matrix file formats. This work is preliminary

and experimental, and is intended only as an assistant to more

elaborate linear algebra solvers and systems.

Contact:

For more details on MatView or any questions, email Jim Kohl

at "kohl@msr.epm.ornl.gov".

MatView Research is supported by the Applied Mathematical Sciences

Research Program, Office of Energy Research, U. S. Department of Energy,

under contract No. DE-AC05-96OR22464 with Lockheed Martin Energy

Research Corporation.

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

From: Uri Ascher <ascher@cs.ubc.ca>

Date: Mon, 17 Aug 1998 14:44:56 -0700 (PDT)

**Subject: New Book, Computer Methods for Ordinary Differential Equations**

Dear friends and colleagues,

We are happy to announce that our book

"Computer Methods for Ordinary Differential Equations

and Differential-Algebraic Equations" is now available from SIAM.

The book provides a unified presentation of numerical

methods for initial-value and boundary-value problems

in ODEs as well as DAEs. The approach we took

is aimed at providing a thorough understanding of the issues

and methods for practical computation while avoiding

an extensive theorem-proof type of exposition. We also

addressed reasons why existing software succeeds or fails.

The book is appropriate for senior undergraduate or beginning

graduate students with a computational focus and for

practicing engineers and scientists who want to learn

about computational differential equations.

It has soft cover and is reasonably priced.

SIAM's coordinates are

phone: 215-382-9800, fax: 215-386-7999, web: www.siam.org

Contents:

Part I : Introduction (Ch. 1: Ordinary diffrerential equations);

Part II : Initial value problems (Ch. 2: On problem stability;

Ch. 3: Basic methods, basic concepts; Ch. 4: One-step methods;

Ch. 5: Linear multistep methods);

Part III: Boundary value problems (Ch. 6: More boundary value problem

theory and application; Ch. 7: Shooting; Ch. 8: Finite

difference methods for boundary value problems);

Part IV : Differential-algebraic equations (Ch. 9: More on

differential-algebraic equations; Ch. 10: Numerical methods

for differential-algebraic equations)

Uri Ascher & Linda Petzold

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

From: Mao Dekang <dkmao@fudan.edu.cn>

Date: Tue, 18 Aug 1998 07:10:18 +0900

**Subject: Intersection of Convex Polygons**

Dear friends:

I need a Fortran code for forming the intersection of two given convex

polygons and would appreciate it if any one can give me a free one or tell

me where I can find it (say, on Internet).

Thank you in advance.

De-kang Mao

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

From: Dave Bond <dbond@sangacorp.com>

Date: Thu, 20 Aug 1998 09:12:41 -0300

**Subject: Change of Address for Dave Bond**

Effective immediately, my new coordinates will be

Sanga Research (Canada) Inc.

Purdy's Wharf, Tower 2

1969 Upper Water Street, Suite 1507

Halifax, NS

B3J 3R7

Email: dbond@sangacorp.com

Phone: (902) 422 - 3254 x238

Fax: (902) 422 - 3281

http://www.sanagcorp.com

Thanks.

Dave

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

From: Sebastian Reich <reich@zib.de>

Date: Thu, 20 Aug 1998 14:18:49 +0200

**Subject: Change of Address for Sebastian Reich**

Dear all:

My new address starting Sept. 1 will be:

Sebastian Reich

Department of Mathematics and Statistics

University of Surrey

Guildford, Surrey GU2 5XH

England

e-mail: mas1sr@mcs.surrey.ac.uk

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

From: George Styan <styan@together.net>

Date: Tue, 18 Aug 98 16:03:58 -0400

**Subject: Florida Workshop Honoring T. W. Anderson**

Seventh International Workshop on Matrices and Statistics

in Celebration of T. W. Anderson's 80th Birthday

Fort Lauderdale, Florida: December 11--14, 1998

The Seventh International Workshop on Matrices and Statistics, in

celebration of T. W. Anderson's 80th birthday, will be held at Nova

Southeastern University, Fort Lauderdale, Florida, on the weekend from

Friday, December 11 through Monday, December 14, 1998. The meeting will

begin in the early evening of Friday, December 11, with a reception and

end on the Monday, December 14, with an excursion and a gourmet dinner.

A banquet is planned for the Saturday evening, December 12.

For their support of this 7th Workshop we are very grateful to the

International Linear Algebra Society (ILAS), Nova Southeastern University

(NSU), and the Statistical Society of Canada (SSC).

The International Organizing Committee for this Workshop

comprises R. William Farebrother (Victoria University of Manchester,

England), Simo Puntanen (University of Tampere, Tampere, Finland), George

P. H. Styan (McGill University, Montr\'eal, Qu\'ebec, Canada; chair), and

Hans Joachim Werner (University of Bonn, Bonn, Germany; vice-chair). The

Local Organizing Committee at Nova Southeastern University comprises

Naomi D'Alessio, William D. Hammack, David Simon, and Fuzhen Zhang (chair).

Details of local as well as central and south Florida attractions and

excursions are available from the Workshop website:

http://www.polaris.nova.edu/MST/conf/FMW/

where all available Workshop information will be updated frequently.

Or contact George Styan,

Dept. of Mathematics and Statistics,

McGill University,

805 ouest, Sherbrooke Street West,

Montr\'eal, Qu\'ebec, Canada

H3A 2K6

e-mail: styan@Math.McGill.CA

or Fuzhen Zhang,

Math, Science \& Technology,

Farquhar Center for Undergraduate Studies,

Nova Southeastern University,

3301 College Avenue,

Fort Lauderdale, Florida 33314-7796, USA;

zhang@polaris.nova.edu

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

From: D. Sloan <caas10@ccsun.strath.ac.uk>

Date: Wed, 19 Aug 1998 10:49:10 +0100

**Subject: Scottish Computational Mathematics**

SCOTTISH COMPUTATIONAL MATHEMATICS

SYMPOSIUM 1998

Final Announcement

Monday 21 September 1998

University of Strathclyde, Glasgow

Supported by the London Mathematical Society

PROGRAMME

P A Knight (University of Strathclyde)

k-SAT and Markov Chains

Y Tourigny (University of Bristol)

Adaptivity and variational problems

M Stynes (University College Cork)

Convection-diffusion problems and their numerical solution

M I G Bloor (University of Leeds)

Parametric shape generation for functional requirements

T N T Goodman (University of Dundee)

Refinable Spline Functions

D Sloan

SCMS98

Department of Mathematics d.sloan@strath.ac.uk

University of Strathclyde

Glasgow, G1 1XH

This is the seventh annual Scottish Computational Mathematics

Symposium organised by Dugald Duncan (Heriot-Watt University)

and Dave Sloan (University of Strathclyde).

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

From: Brigitte Verdonk <icra99@uia.ua.ac.be>

Date: Thu, 20 Aug 1998 15:18:04 +0200 (MET DST)

**Subject: Conference on Rational Approximation**

ICRA99

FIRST ANNOUNCEMENT and CALL FOR PAPERS

INTERNATIONAL CONFERENCE

on

RATIONAL APPROXIMATION

June 6-11, 1999

UNIVERSITY OF ANTWERP (UIA)

The conference will focus on rational approximation theory in the broadest

sense, including all computational aspects and applications. Contributions

are welcomed on the subjects of

Pade Approximation

Continued Fractions

Orthogonal Polynomials, and

Rational Approximation in general.

Organizers:

A. Cuyt (UIA, Antwerp), B. Verdonk (UIA, Antwerp)

Scientific Committee:

A. Bultheel (KUL, Leuven), A. Cuyt (UIA, Antwerp), A. Magnus (UCL,

Louvain-la-Neuve), J. Schmets (ULg, Liege), J.-P. Thiran (FUNDP,

Namur), M. Van Barel (KUL, Leuven), P. Van Dooren (UCL,

Louvain-la-Neuve), B. Verdonk (UIA, Antwerp)

Logistic Support:

S. Becuwe, P. Van Tilborgh

Invited Speakers:

Several one-hour survey lectures will be given by specialists in the field.

The invited speakers are (in alphabetical order):

G. Baker Jr. (Los Alamos) P. Borwein (Burnaby),

P. Graves-Morris (Bradford) W. B. Jones (Boulder)

G. Labahn (Waterloo) L. Lorentzen (Trondheim)

D. S. Lubinsky (Johannesburg) H. J. Stetter (Wien)

Conference Location:

The conference takes place at the campus of the University of Antwerp (UIA).

For more information:

Visit the conference Web page at

http://win-www.uia.ac.be/u/icra99/

or contact one of the organizers at

Dept of Mathematics and Computer Science

University of Antwerp (UIA)

Universiteitsplein 1

B-2610 Antwerp

Belgium

Tel: +32 3 820 24 01

Fax: +32 3 820 24 21

E-mail: icra99@uia.ua.ac.be

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

From: James Nagy <nagy@golem.math.smu.edu>

Date: Fri, 21 Aug 1998 14:19:34 -0500 (CDT)

**Subject: Conference Honoring Bob Plemmons**

LINEAR ALGEBRA:

THEORY, APPLICATIONS AND COMPUTATIONS

(call for papers)

A conference in honor of

Robert J. Plemmons

on the occasion of his 60th Birthday

Friday, January 8 -- Saturday, January 9, 1999

Wake Forest University

Winston-Salem, NC

Conference Objectives

In the past 30 years, Bob Plemmons has made several significant

contributions on a variety of problems in linear algebra,

including: nonnegative and structured matrices;

large and sparse least squares problems, including iterative

methods and parallel computations; signal processing and image

processing applications. The aim of this meeting is to bring

together experts from these diverse, yet related, areas to

explore greater commonality.

Conference Format

There will be several invited talks covering the following

areas:

* Large, sparse least squares problems / parallel algorithms.

* Signal processing applications.

* Matrix analysis / nonnegative matrices

* Image processing applications.

In order to avoid parallel sessions, only invited papers

will be presented at the conference. However, a significant

part of the conference will be an extensive poster session.

Contributed Papers

We encourage contributions of papers for the poster session.

Abstracts for contributed posters can be sent by email to:

jnagy@mail.smu.edu

To guarantee a spot on the program, a title and abstract must be

received by November 6, 1998.

In addition, funding is being sought to help support new

investigators. If you require funding, please include with

your abstract an estimated budget.

Special Journal Issue

Papers presented at the conference, including contributed posters,

can be submitted to a special issue of Linear Algebra and Its

Applications for possible publication. The papers will go through

the usual refereeing process.

Invited Speakers

Greg Ammar (Northern Illinois) Franklin Luk (RPI)

Abraham Berman (Technion) Carl Meyer (NC State)

Michael Berry (Tennessee) Michael Neumann (Connecticut)

Ake Bjorck (Linkoping) Esmond Ng (Oak Ridge)

Raymond Chan (CUHK, Hong Kong) Michael Ng (HCU, Hong Kong)

Robert Funderlic (NC State) Ching-Tsuan Pan (Northern Illinois)

Kyle Gallivan (Florida State) Dan Pierce (Boeing)

Gene Golub (Stanford) Nikos Pitsianis (BOPS, Inc.)

Martin Hanke (Karlsruhe) Lothar Reichel (Kent State)

William Harrod (Cray Research) Ahmed Sameh (Purdue)

Misha Kilmer (Northeastern) Daniel Szyld (Temple)

Curt Vogel (Montana State)

Organizing Committee

Michele Benzi (Los Alamos)

Richard Carmichael (Wake Forest)

William Ferng (Taiwan)

James Nagy (Southern Methodist)

Pau'l Pauca (Duke)

Xiaobai Sun (Duke)

Todd Torgersen (Wake Forest)

Further Information

For additional information, please see the conference web page:

http://everest.cs.duke.edu

Or, send email to Jim Nagy (jnagy@mail.smu.edu).

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

From: James Blowey <J.F.Blowey@durham.ac.uk>

Date: Fri, 21 Aug 1998 20:30:38 +0100 (BST)

**Subject: Postdoctoral Postion at University of Durham**

POSTDOCTORAL RESEARCH ASSISTANT

A Postdoctoral Research Assistant is required to work on an EPSRC project

``Numerical Approximation of Degenerate Fourth Order

Nonlinear Parabolic Partial Differential Equations''.

This project involves the modern theory of partial differential equations,

finite element approximation and scientific computation.

The post will run for three years. The first 18 months to be spent at

the University of Durham with Dr James F. Blowey (J.F.Blowey@durham.ac.uk)

and the second to be spent at Imperial College, London with

Dr John W. Barrett (j.barrett@ic.ac.uk).

The starting salary will be on the RA1A scale in the range 15,735 - 17,570

pounds sterling per annum. It is expected that the successful

candidate will already hold a Ph.D. degree at the time of taking up

the appointment.

Further information concerning the post may be obtained from

http://fourier.dur.ac.uk:8000/~dma0jfb/

Applicants should send a copy of their CV, including the names of

three referees, to J.F.Blowey@durham.ac.uk. Closing date for

applications is 30th September 1998 with a view to starting on 1st

January 1999 or very soon after.

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

From: Howell Peregrine <D.H.Peregrine@bristol.ac.uk>

Date: Mon, 17 Aug 1998 16:59:59 +0100 (British Summer Time)

**Subject: Position at University of Bristol**

University of Bristol

England

Chair

in

APPLIED MATHEMATICS

The University of Bristol invites applications for the post of

Professor of Applied Mathematics in the School of Mathematics from

persons of outstanding research achievement in areas of applied

mathematics, including numerical analysis. This post is related to the

forthcoming retirement of Professor Philip Drazin. Preference may be

given to active researchers with expertise in scientific computation,

and who would strengthen and broaden existing areas of research within

the School's Applied Mathematics and Numerical Analysis Group.

Informal enquiries are welcome, and may be made to the Head of School:

Dr. W.G.C. Boyd,

School of Mathematics, University of Bristol,

University Walk,

Bristol BS8 1TW

England

email:W.Boyd@bris.ac.uk tel: +44 (0) 117 928 7974

fax: +44 (0) 117 928 7999

For more information see http://www.maths.bris.ac.uk/~amnag

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

From: B. B. King <bbking@sun.icam.vt.edu>

Date: Tue, 18 Aug 1998 17:50:13 -0400 (EDT)

**Subject: Postdoctoral Position at Virginia Tech**

Postdoctoral Position at

Interdisciplinary Center for Applied Mathematics, Virginia Tech

Applications are invited for a one-year postdoctoral research position in

the Interdisciplinary Center for Applied Mathematics in the areas of

applied and computational mathematics. Renewal of the position is

contingent upon funding. The candidate selected will help in collaborative

research projects in developing innovative tools for computational design

of practical controllers for spatially distributed systems. Topics of

interest include fluid-thermal interactions, manufacture of thin films,

molecular dynamics and chemically reacting flows. Virginia Tech has a

strong commitment to the principle of diversity and, in that spirit, seeks

a broad spectrum of candidates, including women, minorities, and people

with disabilities. The successful candidate is expected to have strong

interest, background and experience in scientific computing and numerical

analysis for distributed parameter systems. Experience in CFD and control

techniques is also desireable. He/she is expected to interact strongly

with other members of the center. Starting date is immediate; applications

will be accepted until the position is filled.

Applicants should send a vita and brief description of research interests

and have three letters of recommendation sent to Melissa Chase,

ICAM--Wright House, West Campus Drive, Virginia Tech, Blacksburg, VA

24061--0531. Individuals with disabilities desiring accomodations in the

application process should notify Mrs. Chase at (540)231-7667, fax

(540)231-7079.

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

From: Erricos John Kontoghiorghes <erricos.kontoghiorghes@info.unine.ch>

Date: Fri, 21 Aug 1998 18:12:36 +0200

**Subject: Research Position at University of Neuchatel, Switzerland**

Ph.D. Research Opportunities in

COMPUTATIONAL ECONOMETRICS & STATISTICS

Applications are invited for a research Ph.D. studentship and a

half-post Teaching Assistantship in Computational Econometrics and

Statistics in the Department of Computer Science, University of

Neuchatel, Switzerland. The TA may be extended to a full position the

following academic year.

The project aims to extend recent research in the development of

parallel algorithms and efficient numerical tools for computing

solutions of large-scale econometric and statistical models. The

various aspects of the research include:

o Development of numerically efficient methods for solving

Simultaneous Equations and Seemingly Unrelated Regression

Equation models.

o The computational efficient solution of the various matrix

problems arising in the estimation methods.

o Parallelization of the matrix algorithms.

Research is expected to be pursued in the three areas listed above.

The weight of research carried out into each topic will depend on the

skills of the researcher(s).

Applicants should be able to demonstrate a good knowledge in two of

the following: Parallel Computing, Numerical Linear Algebra, and

Econometrics & Statistics (Linear Models). The working language will

be English but for the TA position candidates must be fluent in French

and have knowledge of basic computing programming languages.

Successful applicants will have the chance to work in the research

interface of Parallel Computing, Numerical Algorithms and Econometrics

& Statistics. The salary of 1/2 TA post and Ph.D. studentship is

approximately 27500 Swiss Francs (18500$) for each post, increasing to

30500 SFR the second year.

The DEADLINE for applications for for the TA position is 29th of

August 1998 while for the Ph.D. studentship is the 1st of October 1998

or until the positions are filled. An applicant can hold both

positions.

The research will be carried out in the Department of Computer

Science, University of Neuchatel, Switzerland.

For further details and application in the form of CV should be

directed to:

Erricos J. Kontoghiorghes,

Institut d'informatique,

Universite de Neuchatel,

Emile-Argand 11,

CH-2007 Neuchatel

Switzerland.

Email: erricos.kontoghiorghes@info.unine.ch

Tel: +41 (0) 32 718 27 38

Fax: +41 (0) 32 718 27 01

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

From: Hans Schneider <hans@math.wisc.edu>

Date: Fri, 21 Aug 1998 12:47:04 -0500 (CDT)

**Subject: Contents, Linear Algebra and its Applications**

Contents of LAA volumes, 280-1, 280-2,3, 281

Journal: Linear Algebra and Its Applications

ISSN : 0024-3795

Volume : 280

Issue : 1

Date : 28-Aug-1998

pp 1-3

Preface for special issue honoring Olga Taussky (OT)

R. Brualdi and H Schneider

pp. 5--8

Introduction

H. Shapiro

pp 9-12

Olga-Taussky-Todd 30.8.1906-7.10..1995

FL Bauer

pp 13-13

What Olga did for me

A Hoffman

pp 15-19

Some personal reminiscences of Olga Taussky

H Schneider

pp 21-37

To the Latimer-Macduffee theorem and beyond!

P Hanlon

pp 39-49

Olga, matrix theory and the Taussky unification problem

CR Johnson

pp 51-57

Some aspects of Olga Taussky's work in algebra

T Laffey

pp. 59--85

Publications about Olga Taussky Todd

H. Shapiro

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

Journal: Linear Algebra and Its Applications

ISSN : 0024-3795

Volume : 280

Issue : 2-3

Date : 04-Sep-1998

pp 87-96

A characterization and representation of the generalized inverse at(2)s and

its applications

YIMIN Wei

pp 97-108

On the connectedness of numerical range of matrix polynomials

J Maroulas

pp 109-127

Notes on D-optimal designs

MG Neubauer

pp 129-162

Krylov subspace methods for eigenvalues with special properties and their

analysis for normal matrices

A Sidi

pp 163-172

A Cauchy-Khinchin matrix inequality

ER Van Dam

pp 173-187

Comparison of two norms of matrices

J Dazord

pp 189-197

Long division for Laurent series matrices and the optimal assignment

problem

KAS Abdel-Ghaffar

pp 199-216

Error bounds on the power method for determining the largest eigenvalue of

a symmetric, positive definite matrix\

J Friedman

pp 217-227

Trace class multipliers and spectral variation of normal matrices

SW Drury

pp 229-240

A generalization of the inertia theorem for quadratic matrix polynomials

B Bilir, C Chicone

pp 241-244

Estimating the operator exponential

K Veselic

pp 245-251

Eigenstructure of distance matrices with an equal distance subset

A Mom

pp 253-266

Linear rank and corank preserving maps on B(H) and an application

to^*-Semigroup isomorphisms of operator ideals

M Gyory, P Semrl

pp 267-287

Pertubation theory for the Eckart-Young-Mirsky theorem and the constrained

total least squares problem

M Wei

pp 289-332

The spectrum of a Hermitian matrix sum

J Day, W So

pp 333-334

Author index to Volume 280

pp 335-336

>From the Editor-in-Chief

pp 341-354

Author Index to Volumes 261--280

Journal: Linear Algebra and Its Applications

ISSN : 0024-3795

Volume : 281

Issue : 1-3

Date : 08-Sep-1998

pp 1-10

How symmetric can a function be?

DC Van Leijenhorst

pp 11-24

Further results on convergence of asynchronous linear iterations

Y Su, A Bhaya

pp 25-31

Rigid relations in GL_2F

L Vaserstein

pp 33-41

A Schur complement inequality for certain P-matrices

TL Markham, RL Smith

pp 43-58

When to call a linear system nonnegative

JW Nieuwenhuis

pp 59-85

Numerical ranges and Poncelet curves

B Mirman

pp 87-96

On Nekrasov matrices

W Li

pp 97-103

Approximating the inverse of a symmetric positive definite matrix

G Simons

pp 105-135

Simultaneous reduction to triangular forms after extension within zeroes

H Bart

pp 137-170

On several types of resolvent matrices of non-degenerative marcial

caratheodory problems

B Fritzsche, B Kirstein

pp 171-225

Overlapping block-balanced canonical forms for various classes of linear

systems

B Hanzon

pp 227-246

Real hamiltonian logarithm of a symplectic matrix

L Dieci

pp 247-257

On the solution of the extended linear complementarity problem

R Andreani, JM Martinez

pp 259-263

An upper bound for the permanent of a nonnegative matrix

SG Hwang, TS Michael

pp 265-292

Optimal trigonometric preconditioners for(nonsymmetric toeplitz systems)

D Potts, G Steidl

pp 293-309

Solving interval linear systems with linear programming techniques.

O Beaumont

pp 311-322

Bounds for determinants of matrices associated with classes of arithmetical

functions

HONG Shaofang

pp 323-324

Author index to Volume 281

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

End of NA Digest

**************************

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