NA Digest Monday, March 4, 1996 Volume 96 : Issue 09

Today's Editor:

Cleve Moler

The MathWorks, Inc.

moler@mathworks.com

Today's Topics:
• NA Digest Calendar
• W. E. Arnoldi
• The Thomas Algorithm
• New Area Code for East Tennessee
• ICIAM Proceedings
• Good News About ICIAM Proceedings
• Nonlinear Data Fitting
• Afternotes on Numerical Analysis
• Dennis and Schnabel Republished
• New Book, State of the Art in Global Optimization
• Application of Interval Computations to Gravity
• Adaptive Simulated Annealing Archive
• Special Issue of IEEE Transactions on Image Processing
• Computational Mathematics and Impacts on Education
• Registration for the ILAS Chemnitz Meeting
• SIAM Conference on Sparse Matrices
• Interval Workshop in Australia
• Summer Program for Undergraduate Women
• Women in Mathematics Workshop
• Object Oriented Numerical Conference
• Computer Mathematics Conference in Greece
• Algebraic Multilevel Iteration Methods
• Position at University of Manchester
• Position at University of Heidelberg
• Postdoctoral Position at Stony Brook
• Contents, Applications of Mathematics
• Contents, Applied Numerical Mathematics

Submissions for NA Digest:

Information about NA-NET:

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

From: NA Digest <na.digest@na-net.ornl.gov>
Date: Mon Mar 4 14:06:18 EST 1996
Subject: NA Digest Calendar

The Netlib Conferences Database is on the Web at:

http://www.netlib.org/confdb/Conferences.html

NA Digest Calendar
Date Topic Place NA Digest #

Mar. 4- 6 Numerical Combustion New Orleans, LA 37
Mar. 11-13 Structural Mechanics Dortmund, Germany 40
Mar. 18-19 Computational Engineering Warrington, UK 03
Mar. 21 Cambridge Approximation Day Cambridge, England 49
Mar. 21-24 Babuska Conference on Finite Elements College Park, MD 04
Mar. 23 South Eastern Linear Algebra Meeting Williamsburg, VA 46
Mar. 26 Computational Fluid Dynamics Oxford, England 08
Mar. 27-29 Object-Oriented Numerics Mississippi State, MS 51

Apr. 1- 4 State of the Art in Numerical Analysis York, England 41
Apr. 9-11 Real Numbers and Computers Marseille, France 26
Apr. 9-13 Copper Mountain Conference Copper Mountain, CO 40
Apr. 9-13 Short Course on Optimization Hampton, VA 05
Apr. 11-13 Applied and Computational Mathematics Pittsburgh, PA 48
Apr. 12-24 Supercomputing on IBM Systems Ames, Iowa 51
Apr. 13 Discrete Mathematics Day Ottawa, Canada 48
Apr. 14-16 Theoretical and Applied Mechanics Tuscaloosa, AL 35
Apr. 15-19 Nonlinear Mathematics Spring School Bristol, UK 03
Apr. 19-21 Directions in Applied Mathematics Notre Dame, IN 49
Apr. 22-25 Linear Algebra in Optimization Albi, France 48
Apr. 25-26 Fortran Futures London, England 48
Apr. 27 Midwest Numerical Analysis Day Milwaukee, WI 08

May 2- 4 Special Session on PDEs Detroit, MI 07
May 5 Workshop on Interval Techniques Gold Coast, Australia 09
May 13-17 Simulation of Devices Obninsk, Russia 51
May 15-17 Combinatorial Optimization Toronto, Canada 05
May 19-23 Computational Fluid Dynamics Freiburg, Germany 30
May 20-22 SIAM Conference on Optimization Victoria, BC, Canada 26
May 20-23 Parallel CFD Capri, Italy 34
May 21-24 Graphics Interface Conference Toronto, Canada 18
May 26- Conference Honoring N. N. Yanenko Akademgorodok, Russia 01
May 27-30 Volterra Centennial Tempe, AZ 06

June 3- 8 Domain Decomposition Methods Bergen, Norway 03
June 10-13 Iterative Methods Toulouse, France 47
June 10-15 Honor Lax and Nirenberg Venice, Italy 29
June 11-14 Numerical Fluid Flow Breckenridge, CO 37
June 13-15 Algebraic Multilevel Iteration Methods Nijmegen, Netherlands 09
June 15-19 Hyperbolic Problems Hong Kong 36
June 17-20 Integral Methods in Science and Engin. Oulu, Finland 24
June 17-21 Householder XIII Symposium Pontresina,Switzerland 31
June 20-21 Mitrinovic Memorial Conference Belgrade, Serbia 26
June 23-26 Computational Physics Beijing, China 01
June 24-25 Stockholm Optimization Days Stockholm, Sweden 03
June 24-26 CFD Short Course Ruston, LA 45
June 24-27 Numerical Analysis Russe, Bulgaria 07
June 24-28 Networks and Systems Saint Louis, MO 52
June 26-28 Time-Frequency Methods for Finance Geneva, Switzerland 47
June 26-28 Images, Wavelets and PDE's Paris, France 41
June 29... Sparse Linear Systems Gran Canaria, Spain 06
June 29... Summer Program for Undergraduate Women Wasington, DC 09

July 1- 2 MPI Users Group Notre Dame, IN 52
July 1- 4 Finite Element Methods Jyvaskyla, Finland 44
July 1- 5 Grid Adaptation in Computational PDEs Edinburgh, Scotland 50
July 7-11 ASME Fluids Engineering Division San Diego, CA 35
July 8-12 Prague Mathematical Conference Prague, Czech Rep. 95:03
July 8-12 Quality of Numerical Software Oxford, England 19
July 8-19 Numerical Analysis Summer School Leicester, England 41
July 9-12 Monte Carlo Methods Salzburg, Austria 45
July 11-17 Numerical Linear Algebria Split, Croatia 51
July 15-19 Computational Mechanics Miskolc, Hungary 48
July 15-17 Finite Volumes Rouen, France 08
July 21-26 Computational and Applied Mathematics Leuven, Belgium 51
July 22-26 SIAM Annual Meeting Kansas City, MO 06
July 22-27 Canadian Mathematical Society Quebec, Canada 44
July 24-26 Symbolic and Algebraic Computation Zurich, Switzerland 42
July 27-30 Conference Honoring Mike Powell Cambridge, England 45

Aug. 1- 3 Structured Matrices Santa Barbara, CA 01
Aug. 5- 7 Computational Fluid Dynamics Hampton, VA 07
Aug. 7- 8 Brazil Interval Workshop Recife, Brazil 03
Aug. 14-17 International Linear Algebra Society Chemnitz 48
Aug. 18-21 Parallel Computing Lyngby, Denmark 38
Aug. 19-21 Parallel Irregular Problems Santa Barbara, CA 44
Aug. 21-24 Total Least Squares Leuven, Belgium 38
Aug. 23 Computational Finance Conference Palo Alto, CA 02
Aug. 24-30 IMACS World Congress Berlin, Germany 07
Aug. 25-31 Congress Theor. & Appl. Mechanics Kyoto, Japan 94:46
Aug. 27-29 Parallel Numerical Algorithms Lyon, France 04
Aug. 27-29 Programming Environment and Tools Lyon, France 06

Sep. 2- 5 Nonlinear Programming Beijing, China 04
Sep. 4- 6 Multidisciplinary Analysis Bellevue, WA 05
Sep. 4- 6 Operations Research Braunschweig, Germany 03
Sep. 9-13 "ECCOMAS 96" Paris, France 23
Sep. 9-14 Inverse and Ill-Posed Problems Moscow, Russia 01
Sep. 9-27 Numerical Simulation of PDEs Trieste, Italy 04
Sep. 15-17 Control System Design Dearborn, MI 43
Sep. 16-18 Multivalued Eikonal Solvers Rocquencourt, France 06
Sep. 16-21 Computational Modelling Dubna, Russia 07
Sep. 17-20 Italian Operational Research Society Perguia, Italy 05
Sep. 25-27 Vector and Parallel Processing Porto, Portugal 51
Sep. 23-27 Inverse Problems in Wave Propagation Aix les Bains, France 03
Sep. 24-26 Boundary Element Method Braga, Portugal 03
Sep. 24-27 Modeling Issues for Environment Albuquerque, NM 07
Sep. 26-28 Computer Mathematics Athens, Greece 09
Sep. 30 Interval Methods Wuerzburg, Germany 43

Oct. 9-11 SIAM Conference on Sparse Matrices Coeur d'Alene, ID 09
Oct. 20-23 High Performance Computing Tempe, AZ 01

Nov. 6- 8 Innovative Time Integrators Amsterdam, Netherlands 40

Dec. 17-19 Mathematics in Signal Processing Warwick, England 48

1997

Jan. 5-12 Computational Mathematics Rio de Janeiro, Brazil 08
May 26-30 Computational Heat Transfer Cesme, Turkey 05
Sep. 15-19 Scientific Computing & Diff. Eqns. Grado, Italy 49
Sep. 29-.. ENUMATH-97 Heidelberg, Germany 50


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

From: Seiji Fujino <fujino@ce.hiroshima-cu.ac.jp>
Date: Wed, 28 Feb 1996 09:16:38 +0900
Subject: W. E. Arnoldi

Today I received a sad news from Mrs. Flora Arnoldi that Walter Edwin
Arnoldi passed away on Oct. 5, 1995 at the age of 77.

Almost all numerical analysts know the name of Arnoldi associated with
the Arnoldi process, which is popular like as the Lanczos process in
the iterative solution of matrix eigenvalue problem. He first presented
the idea in his paper titled by "The principle of minimized iterations
in the solution of the eigenvalue problem" in Quart. of Appl. Math.,
Vol.9 in 1951. However, while I had tried to look for his personal data,
I did not come across anybody who mentioned this reference.

Last January I found out an article about W. E. Arnoldi in the
encyclopedia "American Men & Women of Science" (18th edition, Vol.1)
published in 1993 by R.R. Bowker, New Jersey. Immediately I wrote a
letter to the address of West Hartford of Connecticut given in the
encyclopedia. It is a great regret, however, my recognition was a
bit late. We missed him.

Here is a summary of the biographical information in the encyclopedia.

He was born Dec. 14, 1917 in New York. He graduated from the Faculty
of Mechanical Engineering of Stevens Inst. of Technology in 1937, and
studied in the course of Master of Science of Harvard Univ. in 1939.
Afterwards he worked as an analytic engineer in Hamilton Standard Div.
of United Aircraft Corp. starting in 1939. His positions included
project engr. 1939-44, system engr. 1944-51, senior tech. specialist
of advance planning 1951-59, chief advance analyst 1959-60, head product
researcher 1962-67, chief division researcher 1967-70, and division tech.
consultant 1970-1977. He retired in 1977.

His main research subjects covered vibration of propellers, engines and
aircraft, high speed digital computers, aerodynamics and acoustics of
aircraft propellers, lift support in space vehicles and structural materials.

Her letter to me makes me feel that Mrs. F. Arnoldi falls in deep
sadness. His name, however, will remain forever with the process
he devised.

Prof. Seiji Fujino
Hiroshima City University
Faculty of Information Sciences
e-mail:fujino@ce.hiroshima-cu.ac.jp

P.S. I appreciate Prof. Taketomo Mitsui of Nagoya Univ. for helping with
this report.


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

From: Cleve Moler <moler@mathworks.com>
Date: Mon Mar 4 13:48:22 EST 1996
Subject: The Thomas Algorithm

My query about the Thomas Algorithm in last week's Digest elicited
over two dozen responses, some from old friends who I hadn't heard
from in years. Thanks to all who replied.

Llewellyn H. Thomas is a distinquished physicist who in the 50's
held positions at Columbia University and at IBM's Watson Research
Laboratory when it was located adjacent to the Columbia campus.
He is probably best known in connection with the Thomas-Fermi
electron gas model.

The so-called Thomas Algorithm is indeed just a form of elimination
for solving tridiagonal systems of linear equations. But it usually
associated with the systems that arise from finite difference
approximations to partial differential equations. The attribution
to Thomas seems to be more common in some engineering disciplines
than it is in numerical analysis.

W.F. Ames writes in his book [1]:

"The method we describe was discovered independently by many and has
been called the Thomas algorithm (see [2]) by (David) Young. Its
general description first appeared in widely distributed published
form in an article by Bruce et al. [e]."

[1] W.F. Ames, Numerical Methods for Partial Differential Equations,
Second Edition, Academic Press, New York, 1977, p.52.

[2] Thomas, L.H., Elliptic problems in linear difference equations
over a network, Watson Sci. Comput. Lab. Rept., Columbia University,
New York, 1949.

[3] Bruce, G.H., Peaceman, D.W., Rachford, H.H., and Rice, J.D.,
Trans. Am. Inst. Min. Engrs (Petrol Div.), vol. 198, 79 (1953).


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

From: Esmond Ng <esmond@msr.EPM.ORNL.GOV>
Date: Fri, 1 Mar 1996 13:33:32 -0500
Subject: New Area Code for East Tennessee

East Tennessee has a new area code. The old area code 615 has
been changed to 423. All telephone and fax numbers at the Oak
Ridge National Laboratory and the University of Tennessee at
Knoxville are affected.

-- Edmond Ng, Oak Ridge


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

From: Goetz Alefeld <ae02@iamlasun6.mathematik.uni-karlsruhe.de>
Date: Wed, 28 Feb 1996 18:49:34 +0100
Subject: ICIAM Proceedings

[Editor's Note: Here is a response from ICIAM to the query in last week's
NA Digest about the status of Proceedings.]

The ICIAM organizers received altogether approximately 4500 pages
(Minisymposia, Contributed Papers and Poster Sessions). They had originally
available only 2400 pages for the planned 4 special issues in ZAMM, but ZAMM
has agreed to publish a fifth issue which allows us to print additional
600 pages(GAMM is paying apprroximately 90 000 Deutschmark for the 5 issues
to ZAMM).

Therefore we still have to reject 1500 pages submitted for the Proceedings.
We had to start a very careful and time consuming refereeing process. This
process is still not completed but most of the work has been done.

In addition to the large number of contributions a series of problems
appeared which the organizers did not expect:

1. Many contributors sent their paper to more than one or even to all
editors of the originally planned 4 issues. This caused confusion and is
still not completely solved.

2. In the guidelines evey submitter of a contribution was asked to send both
a hardcopy and a TEX-File. About 50% of the contributions have been received
only by hardcopies. Very often it was not possible to print the Tex-File.
Therefore we had to write a lot of letters and e-mails. Some people still
have not replied to this.

I have asked the the three other editors of the 5 special issues about the
current status of their issues. First of all, all of them confirmed that
enquiries concerning submitted papers have been promptly answered. The 5
issues are in the final stage and after sending them to the publisher all
contributors will be informed if their paper has been accepted or not. This
will be done via e-mail and/or regular mail. At the moment my impression is
that this will happen during the next three months. Until then we ask everyone
for patience. From the number of pages submitted one can see that we really
have to do a very big and difficult job.

Sincerely yours,

G. Alefeld (Treasurer of GAMM)


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

From: Marcin Paprzycki <PAPRZYCKI_M@utpb.edu>
Date: Sat, 2 Mar 1996 21:51:51 -0600 (CST)
Subject: Good News About ICIAM Proceedings

Dear Colleagues,

In the last NA-Digest I have posted a message (representing my three
colleagues and myself) about the ICIAM Proceedings. It looks like we have
touched a very sore spot of some NA-readers. I have received about 16
messages (representing individuals and groups of researchers) describing
the same situation. After submitting papers no confirmation has been
received. Any attempt to contact the Conference Organizers over the e-mail
had the same effect: none whatsoever. For all of us I have GOOD NEWS!!!!
I have received about 5 responses that within the last 2 weeks they have
received confirmations that the papers will be published. This seems to
suggest that things are moving and we just need to have a little bit more
patience.

I would like to express my deep gratitude to everyone who has responded
to our query.

Respectfully,
Marcin Paprzycki
paprzycki_m@utpb.edu


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

From: Marcus Naraidoo <Marcus.Naraidoo@src.bae.co.uk>
Date: Tue, 27 Feb 96 11:00:18 GMT
Subject: Nonlinear Data Fitting

I have some experimental data F(x) (an approximation to the actual
values f(x)) at locations x which I wish to fit to my model
expression:

                             infinity
f(x) = a*x**(-2)*abs( integral        exp(-kz)*exp(ixz) dz )**2
                             0
     + b*x**(-5/3)

     + c