### Today's Editor:

- Cleve Moler
- The MathWorks, Inc.
- moler@mathworks.com

- Some Frquently Asked Questions
- Updated Fortran 90 Benchmark Suite
- Shallow Water and Short Waves
- Comments on IEEE Arithmetic
- Division by Zero is OK in Many Cases
- Use of STRIDE for Initial-value PDEs
- Corrected Email Address for Hong Kong Baptist College
- Change of Address for Eric de Sturler
- Position at Univ. New Mexico and Hawaii
- Saudi Association for Mathematical Sciences
- Position, Utrecht University, Netherlands
- Positions at the University of Colorado at Denver
- Announcing ONE day Course on Mathematica 17 Nov 1993
- Conference on Domain Decomposition Methods
- Cornelius Lanczos International Centenary Conference
- NSF Postdoctoral Research Associates
- LAA Now Accepting LATEX Files
- Special Issue of LAA Honoring Fiedler and Ptak
- Contents: Advances in Computational Mathematics
- Contents: Computational and Applied Mathematics
- Contents: Linear Algebra and its Applications

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

From: Alan Edelman <edelman@BOURBAKI.MIT.EDU>

Date: Tue, 5 Oct 93 15:22:32 EDT

**Subject: Some Frquently Asked Questions**

Answers to frequently asked questions:

1) The 1993 linear algebra survey and other observations on

the parallel computing influence may be found in print in "Large

Dense Numerical Linear Algebra in 1993: The Parallel Computing

Influence", International Journal of Supercomputer Applications,

Volume 7, Summer 1993, pp 113-128.

2) The LAPACK manual front and back covers contain matrices

that are inverses of each other, if you assume that the

small and capitol letters are reciprocals of each other.

The matrix is related to Hadamard matrices.

Have fun,

Alan Edelman

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

From: John Prentice <johnp@amber.unm.edu>

Date: Tue, 5 Oct 93 22:37:31 MDT

**Subject: Updated Fortran 90 Benchmark Suite**

Announcing the availability of the Quetzal Fortran 90 Benchmark Suite

The latest version of the Quetzal Computational Associates Fortran 90

compiler benchmark results are now available from anonymous ftp at

unmfys.unm.edu in the directory pub/quetzal. The benchmark codes

themselves are available as well and so is a review of the VAST-90

utility for converting Fortran 77 codes to Fortran 90. Please note

that this ftp site is different from the one used in the past.

This version of the benchmark suite differs in many significant ways

from the original one that was made available earlier this year.

In particular, some codes have been dropped from the suite and

several others have been added. The benchmark results have been

updated to reflect the performance of newer releases of the compilers

on the codes in the new benchmark suite.

Please contact me if you have any problems with the anonymous ftp

directory or other questions.

John

John K. Prentice

Quetzal Computational Associates

3200 Carlisle N.E., Albuquerque, NM 87110-1664 USA

Phone: 505-889-4543 Fax: 505-889-4598 E-mail: quetzal@aip.org

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

From: Gustavo Montero Garcia <gustavo@titan.ulpgc.es>

Date: Fri, 8 Oct 93 10:00:46 GMT

**Subject: Shallow Water and Short Waves**

I'll be so grateful if you send me some information about

NUMERICAL MODELLING IN SHALLOW WATER PROBLEMS. SHORT WAVES

I'm interested in references, software and people working

in this field of simulation by FEM.

Thank you.

Gustavo Montero

Prof. Tit. U.

Centro de Aplicaciones Numericas en Ingenieria CEANI

Universidad de Las Palmas de Gran Canaria

Campus de Tafira Baja

35017 Tafira ( Las Palmas de Gran Canaria)

Islas Canarias -Espa~na-

Tf.: + 34 28 451 917

FAX.: + 34 28 451 921

E-mail: gustavo@titan.ulpgc.es

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

From: James Demmel <demmel@zil.CS.Berkeley.EDU>

Date: Fri, 8 Oct 93 17:49:27 -0700

**Subject: Comments on IEEE Arithmetic**

Comments on IEEE Arithmetic

Jim Demmel

Computer Science Division and Math Dept.

University of California

Berkeley, CA 94720

demmel@cs.berkeley.edu

This is in response to the various comments on IEEE arithmetic in the

last few NA-Digests.

Many user complaints are a result of the IEEE floating point standards

754 and 854 specifying how systems "should appear" to the user, without

specifying any specific language bindings. These binding were not part

of the standard, because the committee members felt that writing a

standard demanding simultaneous changes in hardware, languages, compilers,

and perhaps operating systems (for exception handling) was unlikely to

to be accepted, or if accepted, implemented correctly. This "act of

cowardice" (in the words of W. Kahan) has unfortunately made it impossible

to write portable software which uses features of IEEE like exception

handling.

This confusion, which is still much better than the pre-IEEE situation

of different roundings, etc., has motivated some people to try to standardize

language bindings in a proposed Language Independent Arithmetic (LIA) ISO

standard. Unfortunately, I believe the LIA still does not give

adequate access to IEEE features, and indeed it was recently voted down

for this reason by the US/ISO committee. It is currently being redrafted,

and may still be accepted, but this is another story. W. Kahan has designed

his own set of language bindings for exception handling, which is easier to do

than a full set of environmental enquiries. He is interested in exploring

implementations with interested parties.

The IEEE standard specifically requires that the default behavior of a system

should NOT be to trap on exceptions, but to compute and/or propagate infinities

and NANs. One reason for this decision was to force manufacturers to implement

NAN and infinity arithmetic with reasonable efficiency, since otherwise

they would be tempted to take the easy way out (implementation via traps to

software) and so make infinities and NANs so slow that they would be impossible

to use effectively. Some manufacturers have still chosen to use software traps,

and others have not. For a recent paper on how to use infinities and NANs

to speed up numeric codes, and the price one pays for implementing them too

slowly, see the reference by Demmel and Li below [1].

All IEEE machines permit trapping on exceptions, and it should be a

prominently documented feature as to how to do this for any particular

system, either via a system subroutine call or compile line option.

It is unfortunate that compiler and system library writers do not

document this more clearly.

[1] Demmel, J. and Li, X., "Faster Numerical Algorithms via Exception Handling",

Proceedings of the 11th Symposium on Computer Arithmetic,

IEEE Computer Society Press, E. Swartzlander, M. J. Irwin and G. Jullien, eds.,

June 29 -- July 2, Windsor Canada, 1993.

Available as all.ps.Z via anonymous ftp from toe.cs.berkeley.edu,

in directory pub/tech-reports/cs/csd-93-728; software is csd-93-728.shar.Z.

An extended version is to be submitted to IEEE Trans. Computers.

[2] Demmel, J., Underflow and the Reliability of Numerical Software,

SIAM J. Sci. Stat. Comput., 1984, v. 5, n. 4, pp 887-919, December

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

From: Dean Schulze <schulze@asgard.lpl.Arizona.EDU>

Date: Sat, 09 Oct 1993 14:24:24 -0700 (MST)

**Subject: Division by Zero is OK in Many Cases**

Mike Peterson writes (Na Digest Volume 93, Issue 37):

>Why anyone would want a default behaviour to allow a program to

>continue executing after dividing by 0 (either integer or floating

>point), or creating a NaN by whatever means (e.g. fp overflow), is

>beyond me. In my many years of programming, I can't think of one

>case where I would want this to happen. Performing such operations

>is a clear indication of a program(mer) error,

You've got to be kidding! Your programming experience through

those many years must have been restricted to a very limited class of

problems. One common example of when you would want to continue

execution after dividing by zero is when computing trigonometric

functions. Here is one example where IEEE arithmetic is a godsend:

exp(exp(-1.0/cos(chi)))

This is not a contrived example. It is used when computing Chapman

functions which are used in the theory of planetary atmospheres.

The ability of IEEE arithmetic to correctly compute trigonometric

functions when the argument is a multiple of pi/2.0 is what made a

fan of IEEE arithmetic.

Dean Schulze

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

From: John Butcher <butcher@mat.aukuni.ac.nz>

Date: Wed, 13 Oct 93 11:26:18 +0000 (NZS)

**Subject: Use of STRIDE for Initial-value PDEs**

Use of STRIDE for initial-value PDEs

The code STRIDE, based on singly-implicit Runge-Kutta methods,

is at present undergoing further testing and development

especially for its possible use to solve PDEs with 1 space

dimension using either finite difference or finite element

discretizations. At present we have managed to solve some

classical problems such as Burgers equation and the KdV

equation. Part of the success of our method is the stability

of the underlying numerical methods but we have also found

great advantages in the flexible calling sequence used in our

integrator. This makes it possible, for example to solve

problems of the form My' = f(t,y), where both M and the

Jacobian of f have banded structures, without throwing away

this structure in the integrator.

We would like to hear about other codes that have been used for

this type of problem with some indication of successes or

difficulties that might have been encountered. We would also

like to extend our range of test problems and we ask for examples

of some reasonably challenging time-dependent PDE problems.

Many thanks,

John BUTCHER butcher@mat.aukuni.ac.nz

MAI Ying, mai@mat.aukuni.ac.nz

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

From: Fred Hickernell <hickerne@leland.Stanford.EDU>

Date: Wed, 6 Oct 1993 09:12:08 -0700 (PDT)

**Subject: Corrected Email Address for Hong Kong Baptist College**

The email address in last week's notice of positions at HKBC should

be fred@math.hkbc.hk (not .edu). My sincere apologies.

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

From: Eric de Sturler <sturler@serd.cscs.ch>

Date: Wed, 6 Oct 93 18:25:00 +0100

**Subject: Change of Address for Eric de Sturler**

Dear Colleagues,

I recently changed jobs. My new address is:

Eric de Sturler

Swiss Scientific Computing Center CSCS/ETHZ

Via Cantonale, CH-6928 Manno, Switzerland

Telephone: +41-91 50 82 65

Fax : +41-91 50 67 11

Email : sturler@serd.cscs.ch

the old address was:

Delft University of Technology

Faculty of Technical Mathematics and Informatics

P.O.Box 5031

2600 GA Delft, The Netherlands

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

From: Brian Smith <smith@cs.unm.edu>

Date: Tue, 5 Oct 1993 10:43:27 -0600

**Subject: Position at Univ. New Mexico and Hawaii**

Job Classification: Director, High Performance Computing Center

Job Description: Director of Maui High Performance Computing Center,

Kihei, Hawaii

Position Description:

The University of New Mexico (UNM) seeks a director for the new Maui High

Performance Computing Center to be located in Kihei, Hawaii. Director

will lead the Maui Center installing high performance computing equipment

and communications services, establishing education, user services,

outreach, economic development, and technology transfer programs, and

seeking enhanced funding for the Center.

Minimum qualifications: PhD in scientific or engineering discipline. At

least ten years experience operation/administration of high performance

computing center; at least two of these years assisting or directing a

high performance computing facility.

Desired qualifications: National reputation in high performance computing

with membership on national committees and boards, and recognized in the

field of high performance or scientific computing.

Applications, resume, and names of four references (include mailing and

e-mail addresses) must be received by 10/22/93. Send application material

to Director Search Committee, Maui Project, Math Annex, University of New

Mexico, Albuquerque, NM 87131. Reference position announcement 0893-93A.

UNM is an Affirmative Action/Equal Opportunity Employer

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

From: Omar Hamed <f40m001%saksu00.bitnet@vtbit.cc.vt.edu>

Date: Thu, 07 Oct 93 11:48:27 +0000 (SLT)

**Subject: Saudi Association for Mathematical Sciences**

Second Announcement

for the First Annual Meeting of the

Saudi Association for Mathematical Sciences

(SAMS)

24-26 ahawal 1414 a.h.

5-7 April 1994 a.d.

venue: King saud university,riyadh, saudi arabia

topics: pure and applied mathematics, mathematical physics,

statistics & O.R.,mathematical education.

language: arabic & english

deadline for recieving papers: 15 december 1993

papers should be sent to:

the annual meeting committee

department of mathematics

college of science

king saud university

p.o.box 2455, riyadh 11451

saudi arabia

participants will bear their own accomodation and travel expenses.

nationals of countries outside the arab gulf cooperative council are

required to have visas for entering saudi arabia. sams will help to

facilitate visa procedures for such participants to the extent possible.

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

From: H.A. van der Vorst <vorst@math.ruu.nl>

Date: Thu, 7 Oct 93 11:15:54 +0100

**Subject: Position, Utrecht University, Netherlands**

POSTDOCTORAL POSITION

ASTRONOMICAL INSTITUTE, UTRECHT UNIVERSITY, THE NETHERLANDS

PARALLEL COMPUTATION OF MAGNETOHYDRODYNAMICS IN THERMONUCLEAR AND

ASTROPHYSICAL PLASMAS

The Astronomical Institute in the Department of Physics and Astronomy

at Utrecht University in the Netherlands has a postdoctoral position

available for two years for research on parallel computing applied

to time dependent magnetohydrodynamics of astrophysical and thermonuclear

plasmas.

The successful candidate will work in a group of four postdocs. Two

are working on time dependent magnetohydrodynamics calculations applied

to astrophysics and plasma physics and two will work on parallel computing

applied to time dependent magnetohydrodynamics. The group is divided

between the Astronomical Institute, Utrecht University and the FOM

Institute for Plasma Physics located just outside Utrecht. This work

is a cooperation between the two Institutes and is under the direction

of Professor J.P. Goedbloed, Professor A.G. Hearn and Professor M. Kuperus.

The research into parallel computing is in cooperation with Professor

H.A. van der Vorst, Mathematics Institute, Utrecht University.

At present there is a Parsytec GC 512 and an IBM SP1 at Amsterdam,

and a Thinking Machines CM 5 at Groningen. These computers are accessible

through the computer network. The Utrecht University Computer Centre

has a Meiko MK200.

Applications are invited from astrophysicists, physicists and

computational scientists who have or will shortly obtain a Ph.D.

Experience with the numerical methods of time dependent (magneto)hydrodynamics

and/or parallel computing is an advantage. The salary will be according to age

and experience from Hfl 4100 up to a maximum of Hfl 4600 gross per month

( US $1 ~ Hfl 1.80 ). The starting date for the appointment is flexible.

Further information may be obtained from Professor A.G. Hearn, preferably

by email.

Applications should reach Professor A.G. Hearn before 31st October

1993. They should contain a curriculum vitae, list of publications,

and a short description of research interests, together with the names and

addresses (with email addresses if possible) of three persons who may be

asked to write a reference on the suitability of the applicant for the

position. Applications may be submitted by email, fax or letter to :-

Professor A. G. Hearn

Sterrekundig Instituut

Postbus 80000

3508 TA Utrecht

The Netherlands

Email ahearn@fys.ruu.nl

30453::27752::ahearn

ahearn@solar.bitnet

Fax intl +31 30 535201

Tel. intl +31 30 535202

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

From: Roland Sweet <rsweet@copper.Denver.Colorado.EDU>

Date: Thu, 7 Oct 93 13:44:06 -0600

**Subject: Positions at the University of Colorado at Denver**

UNIVERSITY OF COLORADO AT DENVER

DENVER, COLORADO

Department of Mathematics

Contingent upon funding the Department of Mathematics anticipates up

to three tenure-track and/or visiting positions for the Academic Year 1994-95.

Two positions will be in computational mathematics--one possibly senior

position at the full or associate professor level and one junior position at

the associate or assistant professor level. The person filling the senior

position will be expected to exercise leadership in the Center for

Computational Mathematics. The third position is a junior position in one

of the areas of discrete mathematics, operations research, or probability

and statistics.

The University of Colorado at Denver is an urban university located

in downtown Denver, which is at the center of the scientific and business

corridor of the Colorado Front Range. The Mathematics Department offers BS

and MS degrees in Mathematics and a PhD degree in Applied Mathematics. The

faculty consists of nineteen full-time members.

Applicants are expected to have strong research records or the

potential for strong research and to have a strong commitment to teaching.

Applicants must have, or be about to receive, a Ph.D. degree. Applicants

should send a current vita, list of publications, statement of current and

planned research, statement of teaching philosophy, and arrange to have three

letters of recommendation sent to: Mathematics Faculty Search Committee,

Campus Box 170, University of Colorado at Denver, P.O. Box 173364, Denver,

CO, 80217-3364. The deadline for applications is January 31, 1994.

The University of Colorado at Denver is committed to enhancing the

diversity of its administration, faculty, and staff and invites and strongly

encourages nominations of and applications from women, members of ethnic

and racial minorities, veterans, and people with disabilities. Alternative

formats of this ad or job description are available upon request for people

with disabilities.

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

From: Elizabeth Smith <smithe@rmcs.cranfield.ac.uk>

Date: Mon, 11 Oct 93 10:37 +0100 (BST)

**Subject: Announcing ONE day Course on Mathematica 17 Nov 1993**

=== One day Course ===

MATHEMATICA: a tutorial introduction

17 November 1993

Applied Mathematics and Operational Research Group, Royal Military

College of Science.

The course is specifically designed for scientists, engineers and

lecturers who either use routine numerical/matrix calculations in

their specific application area or teach the subject at various

levels. No specialist knowledge of programming or computer science is

required, but participants are expected to have basic knowledge of

computing and to be educated to degree level.

Every participant will receive a comprehensive set of lecture notes

illustrating various features of MATHEMATICA.

The course provides hands-on experience of the MATHEMATICA package

which will be followed by a selection of case studies from scientific

and engineering applications. Lectures are accompanied by several

tutorials where the participants will have ample opportunity to work

on a topic of their own choice.

The course lectures will be given by the teaching and research staff

of the Applied Mathematics and Operational Research Group under the

direction of Dr. Venkat V.S.S. Sastry.

To reserve a place on the course please write to Mrs. E. Smith,

Applied Mathematics and Operational Research Group, RMCS, Shrivenham,

Swindon, Wilts., SN6 8LA or Tel: (0793) 785317 or Fax: (0793) 782179

or e-mail: smithe@uk.ac.cran.rmcs

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

From: Jinchao Xu <xu@math.psu.edu>

Date: Mon, 11 Oct 1993 10:31:03 -0400

**Subject: Conference on Domain Decomposition Methods**

This is to remind that the Seventh International Conference on Domain

Decomposition Methods will take place during October 27--30, 1993 at

the Keller Conference Center at Penn State University, State College,

Pennsylvania, USA. The conference will begin at 9:00am Wednesday,

October 27 and will end around 4:00pm on Saturday, October 30. The

conference banquet will be held on Friday evening, October 29 at

7:00pm. Those who arrive early will be able to register at a reception

on Tuesday, October 26 at 6:30pm (at Nittany Lion Inn, State College).

More detailed information relevant to the conference may be obtained via

anonymous ftp to ftp.math.psu.edu (146.186.131.129) in the directory

pub/ddm7. A tentative list of contributed presentations and invited

talks can be found by "finger ddm7@math.psu.edu".

For further Information, contact:

Dr. Jinchao Xu (Conference Chair)

Ms. R. Manning (Conference Secretary)

Department of Mathematics Tel. 814-865-7527

Penn State University Fax. 814-865-3735

University Park, PA 16802-6403 e-mail: ddm7@math.psu.edu

For Registration and hotel information, contact:

Mr. J. Sinclair (Conference Coordinator)

Penn State University Tel. 814-863-1744

409 Keller Conference Center Fax. 814-865-3749

University Park, PA 16802-1304 e-mail: JWS5@OAS.PSU.EDU

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

From: Moody Chu <chu@gauss.math.ncsu.edu>

Date: Mon, 11 Oct 93 16:09:50 -0400

**Subject: Cornelius Lanczos International Centenary Conference**

REGISTRATION FOR LANCZOS CONFERENCE

CORNELIUS LANCZOS INTERNATIONAL CENTENARY CONFERENCE

December 12-17,1993

North Carolina State University

Raleigh, NC, USA

Colleagues interested in attending the Lanczos Conference are cordially

reminded to register for the meeting before NOVEMBER 1 in order to take

advantage of the reduced registration fee.

A Preliminary Program has been sent out by regular mail according to our

mailing list. If you have not received the preliminary program, or if

you would like to receive e-mail versions of the information, please

send an e-mail to

lanczos@math.ncsu.edu

by including one of the following lines in the SUBJECT line of your

message:

send registration material

send hotel information

send program schedule

We are looking forward to an exciting gathering in Raleigh and hope

you are there.

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

From: Bob Voigt <rvoigt@nsf.gov>

Date: Tue, 12 Oct 1993 10:45:59 -0400

**Subject: NSF Postdoctoral Research Associates**

NSF 93-150 Postdoctoral Research Associates in Computational

Science and Engineering:

Program Announcement

DIVISION OF ADVANCED SCIENTIFIC COMPUTING

OFFICE OF CROSS-DISCIPLINARY ACTIVITIES

DEADLINE: NOVEMBER 29, 1993

NATIONAL SCIENCE FOUNDATION

Effective October 25, 1993, the new mailing address will be:

National Science Foundation

4201 Wilson Blvd.

Arlington, VA 22230

CISE Postdoctoral Research Associates in Computational Science and

Engineering

The Computer and Information Science and Engineering (CISE)

Directorate of the National Science Foundation plans a limited

number of grants for support of Postdoctoral Research

Associateships contingent upon available funding. The Associates

are of two types:

- Associateships in Computational Science and Engineering

(CS&E Associates) supported by the New Technologies Program in the

Division of Advanced Scientific Computing (DASC) in cooperation

with other NSF CS&E disciplines (CS&E Associates). The objective of

these Associateship awards is to increase expertise in the

development of innovative methods and software for applying high

performance, scalable parallel computing systems in solving large

scale CS&E problems.

- Associateships in Experimental Science (ES Associates)

supported by the Office of Cross Disciplinary Activities (CDA) .

The objective of the ES Associateship awards is to increase

expertise in CISE experimental science by providing opportunities

for associates to work in established laboratories performing

experimental research in one or more of the research areas

supported by the CISE Directorate.

These awards provide opportunities for recent Ph.D.s to broaden

their knowledge and experience and to prepare them for significant

research careers on the frontiers of contemporary computational

science and engineering and experimental science. It is assumed

that CS&E Associates will conduct their research at academic

research institutions or other centers or institutions which

provide access, either on site or by network, to high performance,

scalable parallel computing systems and will be performing research

associated with those systems. It is assumed that ES Associates

will conduct their research in academic research institutions or

other institutions devoted to experimental science in one or more

of the research areas supported by the CISE Directorate.

Additional Information:

If you wish additional information, please contact Dr. Robert

G.Voigt, Program Director, New Technologies, DASC, at 202-357-7727

(e-mail: rvoigt@nsf.gov) for CS&E Associates or Dr. Tse-Yun Feng,

Program Director, CDA at (202) 357-7349 (e-mail: tfeng@nsf.gov) for

ES Associates. After November 19, 1993, the phone numbers are

respectively 703-306-1962 and 703-306-1980.

Copies of most program announcements are available electronically

using the Science and Technology Information System (STIS). The

full text can be searched on-line, and copied from the system.

Instructions for use of the system are in NSF 91-10 "STIS Flyer."

The printed copy is available from the Forms and Publications Unit.

An electronic copy may be requested by sending a message to

"stis@nsf" (bitnet) or "stis@nsf.gov" (Internet).

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

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

Date: Thu, 7 Oct 1993 10:13:15 -0500 (CDT)

**Subject: LAA Now Accepting LATEX Files**

LATEX files for accepted LAA papers.

Elsevier Science Publishing Co. is now accepting LATEX files for

publishing papers in LAA and a LATEX macro file has been created

specifically for LAA. We hope that authors obtain and use these macros

for composing their papers. This reduces proof reading to a minimum,

among other advantages to authors, editors and the publisher. Below we

give a description of the process involved.

First, it should be noted that until final acceptance of a paper, the

editorial process is unchanged. Authors should continue to submit three

hard copies of their typescript to an editor. An electronic file is

not desired at this stage; although an author may vary this procedure

by agreement with individual Associate Editors. A LATEX file is

desired only at the time of final acceptance of the paper.

If an author wishes to submit a LATEX file if his/her paper is

accepted, he/she should inform the editor of this in the letter

accompanying submission. The author will then be asked to send the

LATEX file to the editor-in-chief either by the editor who recommends

acceptance or by the editor-in-chief who accepts the paper. The LATEX

file may be on a disk (preferably) or it may be sent by email. This

file must be identical to the hard copy of the paper accepted for

publication. It is essential that a diskette is clearly labeled with

the following information: the name of the authors, the email address

of the corresponding author, title of the paper, the LAA number, RFP

number (found in the letter of acceptance, if known). If the file is

sent by email, the same information should be commented in near the

beginning. The RFP (or LAA) number should also be included in the

"Subject" line.

Additional information on what this file should contain and on LAA

macros can be found in the LATEX guidelines available from IIC as file

LAA LATEX-G and the LAA macros themselves are available from IIC as

file LAA LATEX-M. Note that these files were revised in September

1993. The LAA macro codes should not be modified. If an author

believes that some modification is needed for his paper, he should

consult the editor-in-chief. Questions about the LAA macros should be

addressed to the LATEX Editor - Elsevier Publications, see the email

address below.

Authors should note that the copy editor will work from the accepted

hard copy only (and that is one reason why no changes should be made in

the LATEX file subsequent to acceptance). Authors will receive proofs

as usual. Corrections made by the copy editor and by the author at

proof stage will be incorporated in the LATEX file by Elsevier.

E-mail addresses:

Editor-in-chief

Richard A. Brualdi brualdi@math.wisc.edu

Hans Schneider hans@math.wisc.edu

LATEX editor - Elsevier Publications

Charles Hurley c.hurley@panix.com

IIC listserv@technion.technion.ac.il

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

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

Date: Sat, 9 Oct 1993 11:06:43 -0500 (CDT)

**Subject: Special Issue of LAA Honoring Fiedler and Ptak**

LINEAR ALGEBRA AND ITS APPLICATIONS

Special Issue Honoring Miroslav Fiedler and Vlastimil Ptak

(Second announcement, note the new submission deadline below)

In view of their major contribution to linear algebra and to this

journal, LAA will publish a special issue in honor of

Miroslav Fiedler and Vlastimil Ptak

to mark the occasion of their retirement.

The purpose of this announcement is to solicit papers for this issue.

The deadline for submission is 31 December 1993 and the issue is expected

to appear about 15 months later.

Papers are invited concerning any aspect of linear algebra, its

applications, and its interactions with graph theory or functional

analysis. All contributions will be subject to the normal reviewing

process.

Submissions should be sent to one of the special editors of this

issue:

Wayne Barrett

Department of Mathemtics

Brigham Young University

Provo, UT 84602

USA

Email: wayne@math.byu.edu

Angelika Bunse-Gerstner

Fachbereich Mathematik und Informatik

Universitaet Bremen

Postfach 33 04 40

D-W-2800 Bremen 33

Germany

Email: angelika@mathematik.uni-bremen.de

Nicholas Young

Department of Mathematics

Fylde College

Lancaster University

Lancaster LA1 4YF

England

Email: N.J.Young@uk.ac.lancs.cent1

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

From: Daniel Baltzer <publish@baltzer.nl>

Date: Tue, 5 Oct 1993 13:38:21 +0100

**Subject: Contents: Advances in Computational Mathematics**

Advances in Computational Mathematics

Contents Volume 1, issues 3 & 4

W. Dahmen, S. Prossdorf and R. Schneider:

Wavelet approximation methods for pseudodifferential equations II: Matrix

compression and fast solution, pp. 259 - 335

K.A. Cliffe, T.J. Garratt and A. Spence:

Eigenvalues of the discretized Navier Stokes equation with application to

the detection of Hopf bifurcations, pp. 337 - 356

J. Williams and Z. Kalogiratou:

Least squares and Chebyshev fitting for parameter estimation in ODEs, pp.

357 - 366

C.T.H. Baker and C.A.H. Paul:

Parallel continuous Runge-Kutta methods and vanishing lag delay

differential equations, pp. 367 - 394

Advances in Computational Mathematics is an interdisciplinary journal of

high quality, driven by the computational revolution and emphasising

innovation, application and practicality. This journal is of interest to a

wide audience of mathematicians, scientists and engineers concerned with

the development of mathematical principles and practical issues in

computational mathematics.

Publication areas of Advances in Computational Mathematics include

computational aspects of algebraic, differential and integral equations,

statistics, optimization, approximation, spline functions and wavelet

analysis. Submissions are especially encouraged in modern computing aspects

such as parallel processing and symbolic computation and application areas

such as neural networks and geometric modelling.

All contributions should involve novel research. Expository papers are also

welcomed provided they are informative, well written and shed new light on

existing knowledge. The journal will consider the publication of lengthy

articles of quality and importance. From time to time special issues

devoted to topics of particular interest to the reader will be published

with the guidance of a guest editor. Ideas for special issues can be

communicated to the Editors-in-Chief.

Software of accepted papers is tested and made available to the readers.

Short communications, a problems section and letters to the

Editors-in-Chief are also featured in the journal at regular intervals.

Advances in Computational Mathematics is being published quarterly.

Authors are cordially invited to submit their manuscripts in triplicate to

John C. Mason, Applied & Computational Mathematics Group, Royal Military

College of Science, Shrivenham, Swindon SN6 8LA, UK, E-mail:

mason@rmcs.cran.ac.uk

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

From: Marijcke Haccou <M.HACCOU@elsevier.nl>

Date: Tue, 5 Oct 1993 13:23:37 +0100

**Subject: Contents: Computational and Applied Mathematics**

J. COMPUTATIONAL AND APPLIED MATHEMATICS; Volume 48, No. 1-2,

29 OCTOBER (1993) (contents)

Special Issue

Proceedings of the Seventh Spanish Symposium on

Orthogonal Polynomials and Applications (SPOA VII)

Granada, Spain, 23--27 Setember 1991

Invited papers

J.S. Dehesa, Preface 1

R. Askey, Problems which interest and/or annoy me 3

D. Bessis and G. Mantica, Orthogonal polynomials

associated to almost periodic Schr\"{o}dinger

operators. A trend towards random orthogonal

polynomials 17

B.M. Brown, W.D. Evans and L.L. Littlejohn,

Orthogonal polynomials and extensions of Copson's

inequality 33

A. Bultheel, P. Gonz\'{a}lez-Vera, E. Hendriksen

and O. Nj{\aa}stad, Moment problems and orthogonal

functions 49

W.N. Everitt, L.L. Littlejohn and S.C. Williams,

Orthogonal polynomials and approximation in Sobolev

spaces 69

T.H. Koornwinder, On Zeilberger's algorithm and its

{\it q}-analogue 91

F. Marcell\'{a}n, M. Alfaro and M.L. Rezola,

Orthogonal polynomials on Sobolev spaces: old and

new directions 113

P. Maroni, Variations around classical orthogonal

polynomials. Connected problems 133

A. Moussiaux, CONVODE: a REDUCE package for solving

differential equations 157

M.E. Muldoon, Properties of zeros of orthogonal

polynomials and related functions 167

F. Peherstorfer, Orthogonal and extremal polynomials

on several intervals 187

W. Van Assche, Christoffel functions and Tur\'{a}n

determinants on several intervals 207

W. Van Assche (Edito), Open problems 225

List of talks 245

List of participants 249

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

From: Richard Brualdi <brualdi@math.wisc.edu>

Date: Wed, 6 Oct 1993 17:46:16 -0500 (CDT)

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

LINEAR ALGEBRA AND ITS APPLICATIONS:

volume 194

Daniel Sweet (College Park, Maryland)

Quadratic Characterizations for Reciprocal Linear Difference

Equations 1

Chiou-Ming Huang and Dianne P. O'Leary (College Park, Maryland)

A Krylov Multisplitting Algorithm for Solving Linear

Systems of Equations 9

Lawrence A. Harris (Lexington, Kentucky)

Computation of Functions of Certain Operator Matrices 31

Yasuhiko Ikebe, Yasushi Kikuchi (Tsukuba City, Ibaraki, Japan),

Issei Fujishiro (Tokyo, Japan), Nobuyoshi Asai,

Kouichi Takanashi, and Minoru Harada (Tsukuba City, Ibaraki, Japan)

The Eigenvalue Problem for Infinite Compact Complex

Symmetric Matrices With Application to the Numerical

Computation of Complex Zeros of J0(z)_iJ1(z) and of

Bessel Functions Jm(z) of Any Real Order m 35

Adolf Rhodius (Dresden, Germany)

On Explicit Forms for Ergodicity Coefficients 71

Dragomir Z. Dokovic (Waterloo, Ontario, Canada)

Factorization of Hermitian Matrix Polynomials With

Constant Signature 85

Jacob C. Engwerda (Tilburg, the Netherlands)

On the Existence of a Positive Definite Solution of the Matrix

Equation X=ATX_1A=1 91

Li Ping and Feng Yu Yu (Hefei, Anhui, People's Republic of China)

Criteria for Copositive Matrices of Order Four 109

Allen D. Ziebur (Binghamton, New York)

The Chain Rule for Functions With a Matrix Argument 125

E. Neely Atkinson (Houston, Texas)

Computing ATA_BTB=LTDL Using Generalized Hyperbolic

Transformations 135

Jaspal Singh Aujla (Jalandhar, Punjab, India)

Matrix Convexity of Functions of Two Variables 149

G. Alefeld and G. Mayer (Karlsruhe, Germany)

The Cholesky Method for Interval Data 161

Alex Pothen (Waterloo, Ontario, Canada)

Predicting the Structure of Sparse Orthogonal Factors 183

Werner Kratz (Ulm, Germany)

A Limit Theorem for Monotone Matrix Functions 205

Author Index 223

^^^^^^^^^^^^^^^^^^^

LINEAR ALGEBRA AND ITS APPLICATIONS

Volume 195

J. P. Milaszewicz and L. P. Moledo (Buenos Aires, Argentina)

On Nonsingular M-Matrices 1

T. L. Hayden (Lexington, Kentucky) and P. Tarazaga (Mayaguez, Puerto Rico)

Distance Matrices and Regular Figures 9

J. J. McDonald (Madison, Wisconsin), M. Neumann (Storrs, Connecticut),

and H. Schneider (Madison, Wisconsin)

Resolvents of Minus M-Matrices and Splittings of M-Matrices 17

Sonia P. Coelho (Sao Paulo, Brazil)

The Authomorphism Group of a Structural Matrix Algebra 35

William F. Trench (San Antonio, Texas)

Interlacement of the Even and Odd Spectra of Real

Symmetric Toeplitz Matrices 59

Kee Yuen Lam (Vancouver, British Columbia, Canada)

and Paul Yiu (Boca Raton, Florida)

Linear Spaces of Real Matrices of Constant Rank 69

Kresimir Veselic and Ivan Slapnicar (Hagen, Germany)

Floating-Point Perturbations of Hermitian Matrices 81

Vjeran Hari (Zagreb, Croatia) and Noah H. Rhee (Kansas City, Missouri)

A Matrix Pair of an Almost Diagonal Skew-Symmetric

Matrix and a Symmetric Positive Definite Matrix 117

William D. O'Neill (Chicago, Illinois)

M-Matrices and Bounds for Reliable Transmission of

Information in Communication Systems and Economic Markets 145

D. J. Hartfiel (College Station, Texas)

Results on Limiting Sets of Markov Set Chains 155

A. A. Ebiefung (Chattanooga, Tennessee)

and M. M. Kostreva (Clemson, South Carolina)

Generalized P0- and Z-Matrices 165

William C. Waterhouse (University Park, Pennsylvania)

The Degrees of the Cyclotomic Extension Fields 181

Jianming Miao and Adi Ben-Israel (New Brunswick, New Jersey)

Minors of the Moore-Penrose Inverse 191

Author Index 209

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

End of NA Digest

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