NA Digest Sunday, May 15, 1994 Volume 94 : Issue 20

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

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From: Gabriela KIRLINGER <>
Date: Fri, 13 May 94 10:53:02 MEZ
Subject: Kreiss Matrix Theorem

We are interested in very many applications of the famous
Kreiss Matrix Theorem.

Thank you very much for help,

Gabriela Kirlinger
Winfried Auzinger
Technical University Vienna


From: Bert Pohl <>
Date: Mon, 9 May 94 08:45:52 +0200
Subject: New Address for Bert Pohl

I have returned to ETH Zuerich,
my new address:

Dr. Bert Pohl
Seminar fuer Angewandte Mathematik
HG G 56
ETH Zuerich
CH-8092 Zuerich

Tel: ++41 - 1 - 632 34 62
FAX: ++41 - 1 - 252 34 01


From: Daniel W. Lozier <>
Date: Tue, 10 May 94 14:46:49 EDT
Subject: Survey Paper on Numerical Evaluation of Special Functions

A forthcoming paper:
D.W. Lozier and F.W.J. Olver,
"Numerical Evaluation of Special Functions",
will appear in:
Mathematics of Computation 1943-1993: A Half-Century of
Computational Mathematics, Walter Gautschi (ed.),
Proceedings of Symposia in Applied Mathematics,
American Mathematical Society, Providence, RI 02940.

Higher transcendental functions continue to play varied and important
roles in investigations by engineers, mathematicians, scientists and
statisticians. The purpose of this paper is to assist in locating useful
approximations and software for the numerical generation of these
functions, and to offer some suggestions for future developments in this

1. Introduction
2. Mathematical developments
3. Packages, libraries and systems
(A general survey of software libraries and packages that include
collections of special functions)
4. Functions of one variable
5. Functions of two or more variables
(In sections 4 and 5 the functions are treated individually.
References to software that is already available and to numerical
approximations that are readily programmable are listed.)
6. Testing and library construction
7. Future trends
(Nearly 500 references are included.)

A preprint is available upon request. Send requests to:
D.W. Lozier
Applied and Computational Mathematics Division
National Institute of Standards and Technology
Gaithersburg, MD 20899
Please be sure to include a postal mailing address.


From: Brahim Khobalatte <>
Date: Wed, 11 May 1994 17:44:42 +0200
Subject: Seeking Postdoctoral Position in CFD

I am looking for a position as a Postdoctoral Research in computational
fluid dynamics. If you are interested please let me know and I will send you
a copy of my current resume and my references. My e-mail addresse is:

Present address: INRIA menusin BP 105, 78153 Le chesnay cedex, France.

I look forward to your reply. Thank you for your kind attention in this

B. Khobalatte.


From: SIAM <>
Date: Thu, 12 May 94 10:12:20 EST
Subject: 1994 SIAM Forum

Third SIAM Forum on Industrial and Applied Mathematics
Saturday, July 23, 1994, The Holiday Inn By The Bay, San Diego, CA


8:15 AM Welcoming Remarks
8:30 - 10:00 Mathematicians In Small Cap Firms
10:30 - 11:30 Non-Mathematicians Who Do Mathematics In Industry
11:30 - 12:00 Mathematics in Industry Preliminary Results Presentation

1:00 - 2:00 PM Hiring In Business, Industry, and Government:
The Manager's Perspective
2:15 - 3:30 Report From The Front: Experiences of Recent Industrial Hires
4:00 - 5:00 Reaching From Academia To Industry
5:00 - 6:00 Networking Session

REGISTRATION FEE: $50 (Fee Includes forum materials, reception, lunch
and dinner.)


For a complete copy of the preliminary program & registration/hotel information,
please contact SIAM Conference Department.
E-Mail: Fax: 215-386-7999 Telephone: 215-382-9800


From: Panos Pardalos <>
Date: Sun, 8 May 94 17:37:39 EDT
Subject: Global Minimization of Nonconvex Energy Functions

DIMACS Workshop on

Global Minimization of Nonconvex Energy Functions:
Molecular Conformation and Protein Folding

Organizers: P.M. Pardalos, D. Shalloway and G. Xue

This workshop will be held on March 20-21, 1995, at DIMACS (Center for
Discrete Mathematics and Theoretical Computer Science at Rutgers University).
This workshop is part of the DIMACS special year 1994-1995: Mathematical
Support for Molecular Biology.

One of the most significant and challenging problems in molecular
biophysics and biochemistry is that of computing the native 3-dimensional
conformation (folded state) of a globular protein given its amino
acid sequence, possibly in the presence of additional agents (e.g., drugs).
The solution will probably require the use of experimental or knowledge-based
methods to provide initial guesses for subsequent numerical refinement.
The numerical methods require: (a) determination of suitable
energy functions that can reliably model protein behaviour and (b) optimization
methods that can find global minima of energy functions given
the many degrees of freedom available to protein structures.
At present significant progress in identifying appropriate energy functions
has been made; the primary impediment is the lack of adequate global
minimization methods for these large-dimensionality problems.
This workshop will focus on this and related problems through an
interdisciplinary effort that is represented from computational groups in
global optimization, computer science and biochemistry.

The workshop will feature a keynote address by distinguished speaker,
Dr. H.A. Hauptman, 1985 Nobel Prize Laureate in Chemistry.

Additional information on travel and local accommodations will be
provided at a later date. More information on the workshop can be
obtained from the organizers:

P.M. Pardalos (University of Florida,
D. Shalloway (Cornell University,
G. Xue (University of Vermont,

or from Pat Toci ( at DIMACS.

The workshop is sponsored by DIMACS with funds from National Science Foundation
and The New Jersey Commission on Science and Technology.


From: Stuart Doole <>
Date: Mon, 9 May 1994 10:42:23 +0000 (BST)
Subject: Dynamics of Discontinuous Systems

First Announcement
The dynamics of discontinuous systems
Monday 26th September 1994
Departments of Mathematics and Engineering Mathematics
Bristol University

This meeting will focus on recent mathematical developments in the
dynamics of systems with discontinuities. Such systems arise in
many mechanical situations, in studies of the effects of
earthquake on buildings and structures, in the analysis of
offshore structures, and many other real engineering scenarios.
The current models have highly complex solution structure
and possess new kinds of bifurcations which require careful
numerical computation. One important issue is whether such
behaviour persists when more realistic/empirical impact laws
are used. A panel discussion will be included,
to examine the relationship between impact dynamics and wear.
There will be plenty of time for informal interactions.

A small registration fee will be charged to cover catering costs.

For further details contact

Professor S.J. Hogan (0272) 303246;
Dr. C.J. Budd (0271) 303317;

This meeting is made possible by a grant from the
London Mathematical Society


From: D. Sloan <>
Date: Mon, 9 May 94 12:25:03 BST
Subject: Position at University of Strathcylde


Applications are invited for a Senior Lectureship/Lectureship in Industrial
Mathematics in the Department of Mathematics.

For the Senior Lectureship strong preference will be given to candidates
with either industrial experience or a substantial research record in
Industrial Mathematics, with a demonstrable ability to attract funding.
It is expected that the new appointee will be energetic and self-motivating.
Should no such suitable candidate emerge then an appointment will be made
to a lectureship. In this case the preference is either for a candidate
with an industrial background or some experience in industrial problem solving.
Salary: up to #29,788 per annum.

The Department of Mathematics has recently made six academic appointments
in industrial mathematics, numerical analysis, continuum mechanics and
nonlinear analysis, and one academic-related appointment of Computer Officer.

For application form and further particulars (Ref 48/94) contact the
Personnel Office, University of Strathclyde, Glasgow, G1 1XQ.
TEL: 041 552 4400 EXT. 4476

Applications Closing Date: 13 June 1994


From: Paco Leon <>
Date: Tue, 10 May 94 18:52:21 PDT
Subject: Position at Intel Santa Clara

Job Opening: Intel Corporation (Santa Clara)
Numerical Analyst (Technology CAD department)


Candidate should have a PhD in Computer Science or related disciplines, with a
thorough knowledge of numerical analysis. A PhD in EE, Physics, or related
discipline is acceptable if the candidate's numerical analysis background is
exceptionally strong. Extensive experience in numerical solution of partial
differential equations is a requirement, as is experience with large numerical
codes. Familiarity with modern programming techniques and languages (such as C,
C++, and object oriented programming) is a plus. Good communication skills are
also required.


As an engineer in the Technology CAD group, he/she will help solve
numerical problems in the group's process and device simulation tools. The
range of problems includes solution of non-linear systems, adaptive grid
generation, and development of parallel algorithms. This person will develop
codes, as well as help others solve their problems, so close interaction
with other developers in the TCAD department is necessary. In addition to the
strictly numerical duties, he/she will be responsible for creating new
applications to be used in development of Intel's next generation technologies.


Paco Leon
Program Manager, Process Modeling Group

(408) 765-9065


From: Ronald Boisvert <>
Date: Wed, 11 May 94 16:04:00 EDT
Subject: Contents, ACM Transactions on Mathematical Software

Table of Contents
ACM Transactions on Mathematical Software
Volume 20 Number 1 (March 1994)

A Noniterative Thinning Algorithm
Christian Neusius and Jan Olszewski
pp. 5-20

Algorithm 726. ORTHPOL : A Package of Routines for Generating Orthogonal
Polynomials and Gauss-type Quadrature Rules
Walter Gautschi
pp. 21-62

New NAG Library Software for First-Order Partial Differential Equations
S.V. Pennington and M. Berzins
pp. 63-99

Algorithm 727. Quantile Estimation Using Overlapping Batch Statistics
Sherif Hashem and Bruce Schmeiser
pp. 100-102

Generating Quadratic Bilevel Programming Test Problems
Paul H. Calamai and Luis N. Vicente
pp. 103-119

Algorithm 728. FORTRAN Subroutines for Generating Quadratic Bilevel
Programming Test Problems
Paul H. Calamai and Luis N. Vicente
pp. 120-123

The Evaluation of Trigonometric Integrals Avoiding Spurious Discontinuities
D.J. Jeffrey and A.D. Rich
pp. 124-136

Sparse QR Factorization in MATLAB
Pontus Matstoms
pp. 136-159

Corrigendum: Algorithm 729. FORTRAN Subroutines for General Toeplitz
Per Christian Hansen and Tony F. Chan
p. 160

Corrigendum: Algorithm 730. An Implementation of a Divide and Conquer
Algorithm for the Unitary Eigenproblem
G.S. Amar, L. Reichel and D.C. Sorensen
p. 161


End of NA Digest