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

- Sir James Lighthill
- Doctor Dobbs Interview with W. Kahan
- Announcement of New Software: MINOPT
- Deadlines for SIAM Parallel Processing Meeting
- Numerical Analysis Workshop in Cuba
- SYNAPSE*3 Matrix- and Neurocomputing Workshop
- Optimization in Computational Chemistry and Molecular Biology
- Positions at University of Wisconsin, Madison
- Position at Swiss Federal Institute of Technology Zurich
- Contents, Linear Algebra and its Applications
- Contents, Computer Physics Communications
- Contents, Numerical Algorithms

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

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

From: Gene Golub <g.golub@ic.ac.uk>

Date: Tue, 21 Jul 1998 23:35:19 +0100 (BST)

**Subject: Sir James Lighthill**

Sir James Lighthill who was a leading applied mathematician and

contributed greatly to theoretical and applied aerodynamics as well as

many other areas died on July 17 in a swimming accident near the Isle

of Sark.

Gene Golub

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

From: Ronald Van Iwaarden <vaniwaar@ca.metsci.com>

Date: Mon, 20 Jul 1998 14:03:36 -0700 (PDT)

**Subject: Doctor Dobbs Interview with W. Kahan**

There is an interesting article entitled "A Conversation with William

Kahan" at http://www.ddj.com/ddj/1997/1997_11/kaha.htm where Dr. Kahan

is interviewed regarding the current state of floating point units in

modern CPU's along with compiler support for and problems with FPU

operations.

Ron

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

From: Minopt Software Support <minopt@titan.Princeton.EDU>

Date: Sat, 25 Jul 1998 15:00:55 -0400 (EDT)

**Subject: Announcement of New Software: MINOPT**

MINOPT

A Modeling Language and Algorithmic Framework for Linear,

Mixed-Integer, Nonlinear, Dynamic, and Mixed-Integer

Nonlinear Optimization

C. A. Schweiger and C. A. Floudas

Department of Chemical Engineering

Princeton University

Princeton, NJ 08544-5263

http://titan.princeton.edu/MINOPT/

MINOPT is a comprehensive, powerful, and flexible package for the

solution of various types of optimization problems. It features both

an ADVANCED MODELING LANGUAGE for the clear and concise representation

of complex mathematical models as well as a ROBUST ALGORITHMIC

FRAMEWORK for the efficient solution of wide variety of mathematical

programming problems.

MINOPT is a flexible tool which can be used in a broad range of

applications:

o Process Systems Engineering

- Process Design

- Process Synthesis

- Process Control

- Process Dynamics

o Optimal Control

o Parameter Estimation

o System Identification

o Process Operations and Operations Research

- Supply chain management

- Scheduling

- Planning

- Portfolio Optimization

- Location/Allocation

MINOPT is capable of handling a wide variety of model types:

o Linear Programs (LP)

o Mixed Integer Linear Programs (MILP)

o NonLinear Programs (NLP)

o NLPs with Differential and Algebraic Constraints (NLP/DAE)

o Mixed Integer NonLinear Programs (MINLP)

o Dynamic Simulations

o MINLPs with Differential and Algebraic Constraints (MINLP/DAE)

o Optimal Control Problems (OCP)

o Mixed Integer Optimal Control Problems (MIOCP)

The MINOPT modeling language allows for the natural representation of

mathematical models using an advance modeling architecture. Large,

complex models can be expressed in a concise, compact, and

understandable form. Since the models are easy to understand, the can

be easily debugged, modified, and maintained.

MINOPT has some important key features:

o Clear and concise representation of complex mathematical models

o Representation of both algebraic and DYNAMIC models

o Support for a broad variety of natural mathematical expressions

o Capability to add, change, or delete the sets, variables, data,

and constraints easily

o Capability to accept model information and data provided in

separate input files

o Checks of model syntax and consistency

o Efficient solution for MIXED-INTEGER NONLINEAR PROGRAMMING problems

o Efficient solution for problems with dynamic models

o Efficient INTEGRATION and SENSITIVITY ANALYSIS

o Connection to Chemkin for kinetic modeling

o Ability to switch easily among various solvers

o Ability to fine tune the solution algorithms with an extensive

list of options

MINOPT has links with many popular solvers:

o CPLEX

o LPSOLVE

o MINOS

o NPSOL

o SNOPT

o DASOLV

o DAESSA

MINOPT also provides algorithms for the solution of MINLPs

o Generalized Benders Decomposition (GBD)

o Outer Approximation and its variants (OA, OA/ER, OA/ER/AP)

o Generalized Cross Decomposition (GCD)

MINOPT has an extensive set of options as well as access to the solver

options and parameters. This makes it possible to tune the various

algorithms and select different algorithm parameters.

MINOPT models are portable and can be used across various platforms.

The MINOPT algorithmic framework is currently available for the

following platforms (operating systems):

o Sun (SunOS 5.5.1)

o HP (HP-UX 10.20)

o IBM (AIX 3.2)

o SGI (IRIX 5.3)

o Intel (Windows 95/NT) (Available soon)

For more information, visit the MINOPT homepage at

http://titan.princeton.edu/MINOPT/

or email

minopt@titan.princeton.edu

For purchasing and Licensing Information, contact

Jean A. Mahoney

Director, Technology Transfer and Trademark Licensing

New South Building

P.O. Box 36

Princeton, NJ 08544-0036

tel: 609-258-3097

fax: 609-258-1159

jean@Princeton.EDU

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

From: Bruce Hendrickson <bahendr@trocious.cs.sandia.gov>

Date: Mon, 20 Jul 98 16:51:22 MDT

**Subject: Deadlines for SIAM Parallel Processing Meeting**

The deadlines are fast approaching for submission to next year's

SIAM Conference on Parallel Processing for Scientific Computing.

The deadline for minisymposium proposals is August 3rd, and the

deadline for contributed papers is September 1st.

The meeting will be held in San Antonio next March 22nd to 24th.

For more details, see http://www.siam.org/meetings/pp99/

- Bruce Hendrickson & Kathy Yelick (co-chairs of SIAMPP'99)

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

From: Victoria Hernandez and Jorge Estrada <matdis@cidet.icmf.inf.cu>

Date: Tue, 21 Jul 1998 11:51:10 -0500 (CUBA)

**Subject: Numerical Analysis Workshop in Cuba**

Dear colleagues,

Some weeks ago we asked to NA community about real situations where it

is necessary to compute the euclidean distance from a point to a conic. We

received many messages and answered some of them. We would like to

thank everybody who answered to us! Their comments and suggestions

were very useful for us!

On the other hand, we are pleased to announce that the International Conference

CIMAF'99, which will be held in Havana from March 22 to 26, 1999, will include

the 1st Workshop on Numerical Analysis. So, we invite all colleagues of NA

community to participate. In particular, we are very interested in those works

dealing with the use of spline functions in geometric modelling. Further information

about the Workshop on Numerical Analysis as well as the registration form may be

requested to:

Dra Lilliam Alvarez

e-mail: lilliam@cidet.icmf.inf.cu

Sincerely yours,

Victoria Hernandez, Jorge Estrada

ICIMAF, Cuba

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

From: Michael Breitner <breitner@math.tu-clausthal.de>

Date: Thu, 23 Jul 1998 11:12:38 +0200 (DFT)

**Subject: SYNAPSE*3 Matrix- and Neurocomputing Workshop**

First SYNAPSE*3 Matrix- and Neurocomputing Workshop

Dear Colleagues,

we have organized the first workshop to bring together developers, users and

researchers working with the new SYNAPSE*3 matrix- and neurocomputer. The

SYNAPSE*3 is a low budget PCI-board with 2 MA16 co-processors designed for

very fast matrix computations and very fast neurocomputing. We invite

interested colleagues to attend the workshop free of charge. The workshop

aims at fostering discussions and cooperation among practitioners and

theoreticians in all fields of low budget high performance matrix- and

neurocomputing.

Location: TU Clausthal, Fachbereich Mathematik und Informatik, Erzstrasse 1,

D-38678 Clausthal-Zellerfeld, Germany (about an hour's drive from

Hannover, Braunschweig and Goettingen).

Tentative schedule: September 24 (1:00 p.m.) - September 25 (12:00 noon), 1998.

Tentative lectures on September 24 (45 -- 60 minutes with discussion)

* SYNAPSE*3 hardware and user-interface (U. Dostal and T. Westfeld,

MediaInterface, Dresden)

* SYNAPSE*3 for Linux PCs (U. Kritzner, TU Dresden)

* Image processing (A. Kritzner, Anwendungszentrum Neuro-Informatik, Schwerin)

* Image processing with AXON (I. Elsen, RWTH Aachen)

* Dud detection with neural networks (C. Cruse, Cruse Leppelmann

Kognitionstechnik, Muenster)

* Heuristic option pricing with neural networks (M. H. Breitner, TU Clausthal)

Computer demonstrations and further discussions are planed on September 25.

Further information and registration:

Dr. Michael H. Breitner

Fachbereich Mathematik und Informatik der TU Clausthal

Erzstrasse 1, D-38678 Clausthal-Zellerfeld, Germany

Email: breitner@math.tu-clausthal.de Phone/Fax: Germany+5323-722959/-722304

Dr.-Ing. Uwe Dostal

MediaInterface Dresden GmbH

Washingtonstrasse 16/16a, D 01139 Dresden, Germany

Email: dostal.mid@drs.siemens.de Phone/Fax: Germany+351-8442101/8442067

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

From: C. A. Floudas <floudas@titan.princeton.edu>

Date: Fri, 24 Jul 1998 18:28:52 -0400 (EDT)

**Subject: Optimization in Computational Chemistry and Molecular Biology**

INTERNATIONAL CONFERENCE ON

OPTIMIZATION IN COMPUTATIONAL CHEMISTRY AND MOLECULAR BIOLOGY:

LOCAL AND GLOBAL APPROACHES

PRINCETON UNIVERSITY

MAY 7-9, 1999

The Third International Conference on Local and Global Optimization

with focus on Computational Chemistry and Molecular Biology

will take place during May 7-9, 1999 at Princeton University.

The two previous conferences on "Recent Advances in Global Optimization",

and "State-of-the-Art in Global Optimization" took place

in 1991 and 1995, respectively.

Conference Goals:

Bring together the most active researchers in computational chemistry,

molecular biology, local and global optimization.

Exchange ideas across discipline boundaries of applied mathematics,

computer science, engineering, computational chemistry and molecular biology.

Main Conference Themes:

Advances in global and local optimization approaches for:

- Molecular Modeling and Dynamics

- Distance Geometry

- Protein Folding

- Molecular Structure Refinement (NMR and Crystallography)

- Protein and Drug Design

- Molecular and Peptide Docking

Deadline for Contributions:

January 15, 1999: Submission of manuscripts (4 copies) to one of the

organizers. Early submissions are encouraged. Decisions on selection

will be promptly communicated to the authors by e-mail or FAX.

Additional Information:

Additional information can be obtained from the conference organizers:

Professor C.A. Floudas

Department of Chemical Engineering

Princeton University

Princeton, NJ 08544-5263

Tel.: (609) 258-4595

Fax : (609) 258-0211

e-mail: floudas@titan.princeton.edu

Professor P.M. Pardalos

Department of Industrial and Systems Engineering

Center for Applied Optimization

University of Florida

Gainesville, FL 32611

Tel : (352) 392-9011

Fax : (352) 392-3537

e-mail : pardalos@ufl.edu

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

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

Date: Mon, 20 Jul 1998 06:53:57 -0500 (CDT)

**Subject: Positions at University of Wisconsin - Madison**

1.

UNIVERSITY OF WISCONSIN - MADISON

The Department of Mathematics invites applications for one or more

positions to begin August 23, 1999, at either the assistant professor

(tenure-track) or associate professor (tenured) level. Applications are

invited in all areas of mathematics. Among the Department's priorities are

partial differential equations, and real and harmonic analysis.

Candidates should exhibit evidence of outstanding research potential,

normally including significant contributions beyond the doctoral

dissertation. A strong commitment to excellence in instruction is also

expected. Additional departmental information is available on our WWW

site, http://www.math.wisc.edu.

Applicants should send a completed AMS standard cover sheet, a

curriculum vita which includes a publication list, and brief

descriptions of research and teaching to:

Hiring Committee

Dept. of Mathematics, Van Vleck Hall

University of Wisconsin-Madison

480 Lincoln Drive

Madison, WI 53706-1388.

Applicants should also arrange to have sent to the above address,

three to four letters of recommendation, at least one of which

addresses the applicant's teaching experiences and capabilities.

Completed applications received by November 15, 1999 will be assured

full consideration. Additional letters will be solicited by the

Department for candidates who are finalists for a tenured position.

The University of Wisconsin is an Affirmative Action, Equal

Opportunity Employer and encourages applications from women and

minorities. Unless confidentiality is requested in writing,

information regarding the applicants must be released upon request.

Finalists cannot be guaranteed confidentiality.

2.

UNIVERSITY OF WISCONSIN - MADISON

The Department of Mathematics invites applications for possible

Van Vleck Visiting Assistant Professorships to begin August 23,

1999. Appointments are for a fixed term of two or three years.

The usual teaching load is two courses per semester. Ordinarily

only those applicants who have received their doctorate since 1996

will be considered. Promise of excellence in research and teaching

is important. Preference will be given to candidates who are

likely to interact well with other members of the Department.

Applicants should send a completed AMS Standard Cover Sheet, a

curriculum vita which includes a publication list, and a brief

statement of research plans to:

Hiring Committee

Dept. of Mathematics, Van Vleck Hall

University of Wisconsin-Madison

480 Lincoln Drive

Madison, WI 53706-1388.

Applicants should also arrange to have sent to the above address,

3 to 4 letters of recommendation, at least one of which must

discuss the applicant's teaching experiences and capabilities.

Other evidence of good teaching will be helpful. The deadline for

completed applications is January 31, 1999.

The University of Wisconsin is an Affirmative Action, Equal

Opportunity Employer and encourages applications from women and

minorities. Unless confidentiality is requested in writing,

information regarding the applicants must be released upon

request. Finalists cannot be guaranteed confidentiality.

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

From: Rolf Jeltsch <jeltsch@math.ethz.ch>

Date: Tue, 21 Jul 1998 16:12:51 +0200 (MET DST)

**Subject: Position at Swiss Federal Institute of Technology Zurich**

The Swiss Federal Institute of Technology Zurich (ETHZ)

invites applications for a

Professorship in Mathematics

with specialisation in mathematical modelling - numerical analysis

- computational sciences.

We are seeking candidates with internationally recognised scientific

accomplishments and the ability to lead a research group and to

direct high-quality research projects. The candidate should also

have interest in and the ability to carry out interdisciplinary

collaboration.

The duties of this position include, in addition to participating

in service teaching, sharing in the responsibility for instruction

in applied and numerical mathematics and simulation of large

systems in mathematics, engineering, and natural sciences. Active

participation in the interdisciplinary degree program in

computational sciences is also expected.

Applications with curriculum vitae and a list of publications

should be submitted, to the

President of ETH Zurich

Prof. Dr. O. Kuebler

ETH Zentrum

CH-8092 Zurich

no later than December 15, 1998. The ETHZ specifically encourages

female candidates to apply with a view towards increasing the proportion

of female professors.

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

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

Date: Tue, 21 Jul 1998 08:49:00 -0500 (CDT)

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

Journal : Linear Algebra and Its Applications

Volume issue : 278/1-3

Year : 1998

Anticipated Publication Date: 31-JUL-98

pp. 1-10

Convergence of certain bounded sequences

B Lavric

pp. 11-36

Transformation techniques for Toeplitz and Toeplitz-plus-Hankel matrices II.

Algorithms

G Heinig

pp. 37-62

Unitary and euclidean representations of a quiver

VV Sergeichuk

pp. 63-84

Schur complements obey Lambek's categorial grammar: another view of Gaussian

elimination and LU decomposition

DS Parker

pp. 85-90

Multiplicative semigroup automorphisms of upper triangular matrices over rings

Chongguang Cao

pp. 91-120

Locally Toeplitz sequences: spectral properties and applications

P Tilli

pp. 121-132

Structured perturbations and symmetric matrices

SM Rump

pp. 133-145

Extremal majorizing and anti-majorizing matrices

J Kastner

pp. 147-161

What is a vector Hankel determinant

A Salam

pp. 163-181

On Phi-convexity of convex functions

JE Martinez-Legaz, I Singer

pp. 183-193

Orthogonality and its approximation in the analysis of asymmetry

JC Gower

pp. 195-219

Quasicomplete factorization and the two machine flow shop problem

H Bart

pp. 221-236

Laplacian graph eigenvectors

R Merris

pp. 237-247

The generalized sine theorem and inequalities for simplices

L Gangsong

pp. 249-262

Group partition and systems of orthogonal idempotents

Z Yingshan

pp. 263-284

Representations and characterizations of vertices of bounded-shape partition

polytopes

FK Hwang, UG Rothblum

pp. 285-285

Preface: Challenges in matrix theory 1998

F Uhlig

pp. 287-293

On the boundary of the set of real spectra of nonnegative matrices

A Borobia

pp. 295-301

Matrices with higher order displacement structure

G Heinig

pp. 303-307

Challenging eigenvalue perturbation problems

E Jiang

pp. 309-316

Approximation of linear operators in the 2-norm

AC Antoulas

pp. 317-326

Spectral variations and Hadamard products: some problems

RC Li

pp. 327-336

Assigning the Kronecker invariants of a matrix pencil by row or column

complications

JJ Loiseau

Journal : Linear Algebra and Its Applications

Volume issue : 279/1-3

Year : 1998

Anticipated Publication Date: 11-AUG-98

pp. 1-12

An algorithm to obtain laws families of filiform Lie algebras

JR Gomez

pp. 13-19

Hadamard functions preserving nonnegative H-matrices

L Elsner

pp. 21-30

Indices and nonzero decomposable elements of a symmetry class of tensors

TIANGANG Lei

pp. 31-38

Derivation ranges

S Mecheri

pp. 39-50

On schur D-stable matrices

R Fleming

pp. 51-74

Block Toeplitz preconditioning for static and dynamic linear systems

K Burrage, Z Jackiewicz

pp. 75-91

A lexicographic algebraic theorem and its applications

S Fujishige

pp. 93-109

On solutions of matrix equation AXB + CYD = F

G Xu, MUSHENG Wei

pp. 111-117

An improvement on Ky Fan's theorem of matrix eigenvalues

L Li

pp. 119-134

The pointwise feedback relation for linear dynamical systems

M Carriegos, T Sanchez-Giralda

pp. 135-151

Perturbation analysis of the canonical subspaces

MUSHENG Wei

pp. 153-161

Null space structure of tree-patterned matrices

P Nylen

pp. 163-175

Computation of pseudospectra via spectral projectors

SK Godunov, M Sadkane

pp. 177-180

The sign-real spectral radius and cycle products

SM Rump

pp. 181-193

Invariant manifolds and projective combinations of solutions of the riccati

differential equation

D D'Alessandro

pp. 195-199

On linear subspaces of nilpotent elements in a Lie algebra

R Meshulam

pp. 201-206

An interlacing property of eigenvalues of strictly totally positive matrices

A Pinkus

pp. 207-225

Generalized exponents of non-primitive graphs

JY Shao

pp. 227-254

Differential topology of numerical range

EA Jonckheere

pp. 255-279

The algebraic structure of pencils and block Toeplitz matrices

DL Boley

pp. 281-283

A note on nonnegative normal matrices

W Li

pp. 285-301

On the condition numbers of large semi-definite toeplitz matrices^1

A Bottcher

pp. 303-316

Properties of positive definite solutions of the equation X + A^ X^-^2A = I^1

I Gantchev

pp. 317-324

Exponentials of symmetric matrices through tridiagonal reductions

YY Lu

NOTE: These contents are produced by Elsevier using a procedure which

sometimes does not list all authors of a paper. We apologize to

co-authors whose names are omitted from the contents.

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

From: Elsevier Science <cdmailer@elsevier.co.uk>

Date: Thu, 23 Jul 1998 06:35:40 +0100 (BST)

**Subject: Contents, Computer Physics Communications**

Journal : COMPUTER PHYSICS COMMUNICATIONS

ISSN : 0010-4655

Vol./Iss. : 112 / 1

Wavelets and distributed approximating functionals

Wei , G.W.

pp.: 1-6

DENISIS -- A three-dimensional partially ionized dusty

magnetoplasma code

Schro"er , A.

pp.: 7-22

A program for calculating photonic band structures and

Green's functions using a non-orthogonal FDTD method

Ward , A.J.

pp.: 23-41

B-spline finite elements and their efficiency in solving

relativistic mean field equations

Po"schl , W.

pp.: 42-66

Computation of photoelectron and Auger-electron

diffractionI. Preparation of input data for the cluster

calculation PAD1

Chen , X.

pp.: 67-79

Computation of photoelectron and Auger-electron

diffractionII. Multiple scattering cluster calculation PAD2

Harp , G.R.

pp.: 80-90

Computation of photoelectron and Auger-electron

diffractionIII. Evaluation of angle-resolved intensities PAD3

Chen , X.

pp.: 91-101

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

From: Baltzer Science <mailer@ns.baltzer.nl>

Date: Fri, 24 Jul 1998 00:29:35 +0200

**Subject: Contents, Numerical Algorithms**

Contents

Numerical Algorithms 17 (1998) 3,4

J.C. Butcher

ARK methods up to order five 193-221

Herbert H.H. Homeier

On the stability of the J transformation 223-239

J.W. Schmidt and M. Bastian-Walther

Algorithm for constructing range restricted histosplines 241-260

Vishwani D. Agrawal, David Lee and Henryk Wozniakowski

Numerical computation of characteristic polynomials of Boolean functions

and its applications 261-278

Christian Rey and Franck Risler

A Rayleigh--Ritz preconditioner for the iterative solution to large scale

nonlinear problems 279-311

Miodrag S. Petkovic, Dorde Herceg and Snezana Ilic

Safe convergence of simultaneous methods for polynomial zeros 313-331

N. Mansouri and J.P Kern

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

End of NA Digest

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