**Today's Topics:**

- Generating Normal Deviates With A DSP Chip
- Postdoctoral Positions at Courant
- Faculty Positions at WPI
- A Workshop Announcement
- Evaluation of Hypergeometric Functions
- Positions at University of Florida
- Special Issue of LAA on Image Reconstruction
- Positions at Cray Research
- 20th "Interface" Symposium
- Golub Receives Guggenheim Fellowship

Date: Wed, 28 Oct 87 16:07 EDT

From: Jack Sharer <JWS%PSUARLC.BITNET@forsythe.stanford.edu>

To: na@score.stanford.edu

This is a request for help in designing a fast algorithm to generate normal

deviates with a 16-bit DSP chip.

It appears that a feedback shift register algorithm (1) will work well for

generating the uniform deviates because of its long cycle length on small

word architectures. My difficulty is identifying an algorithm to map the

uniform deviates to normal deviates. The algorithms I know of are either

time consuming (like add ten or so uniform deviates) or use logarithms

(polar method and inverse error function).

Do you have any suggestions?

Thanks in advance, Jack Sharer, JWS@PSUARLC

(1) Lewis&Payne. "Generalized Feedback Shift Register Pseudorandom Number

Algorithm," JACM 20(3), pp 456-568, July 1973.

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

Date: Wed, 28 Oct 87 18:18:58 EST

From: Brent Lindquist <lindquis@cmcl2.NYU.EDU>

To: na.dis@score.stanford.edu

POSTDOCTORAL POSITIONS AVAILABLE

One or more postdoctoral positions may be available for

work in computational fluid dynamics and hyperbolic conser-

vation laws. Diverse applications including oil reservoir

modeling, gas dynamics and fluid instabilities are being

studied using front tracking, grid refinement and related

methods.

To apply for these positions, please send a vita,

resume and a statement of scientific interests to James

Glimm at

Courant Institute,

New York University,

251 Mercer Street,

New York, NY 10012.

Applicants should also list three references, who have

been requested to send letters of recommendation to the

above address.

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

From: Samuel Rankin <RANKIN@AFSC-HQ.ARPA>

Date: Thu 29 Oct 87 15:01:26-EST

To: na@SU-SCORE.ARPA

The Department of Mathematical Sciences will have several tenure track openings

at all levels beginning in August, 1988. Visiting appointments are also

available. The following areas of applied mathematics are of interest:

scientific computing

numerical analysis

applied discrete mathematics

pde

mathematical fluid mechanics

optimization

control theroy

probability-statistics

Quality teaching and an active research program are expected.

Inquires should be sent to,

Samuel M. Rankin, III

Dept. of Mathematical Sciences

Worcester Polytechnic Institute

100 Institute Road

Worcester, MA 01609

E-MAIL: smrankin@wpi.bitnet

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

Date: 29 Oct 87 18:24 EST

From: Malvin Kalos <KALOS@NYU-CMCL1.ARPA>

To: <NA@SCORE.STANFORD.EDU>

Workshop on Numerical Quantum Simulations

(emphasis on Monte Carlo methods and on calculations in physical time)

sponsored by

Courant Institute of Mathematical Sciences

New York University

and

Department of Mathematics

Rutgers University

Saturday, December 19, 1987

10AM to 3PM

Courant Insitute of Mathematical Sciences

New York University

251 Mercer Street

New York N.Y. 10012

Talks by D. Ceperley (Illinois) and J. Hirsch (UC San Diego)

as well as by the Courant and Rutgers groups are planned.

Note: this is the second semi-annual workshop on this subject

The first was held last spring and included talks by B. Berne

(Columbia), D. Chandler (Berkeley), W. H. Miller (Berkeley), R. Stratt

(Brown), and J. Doll (LANL).

Others who wish to speak, or who wish additional information,

should call or write to

M. H. Kalos, CIMS

(212) 998 3342

kalos@nyu.edu

kalos@nyu.arpa

kalos@nyuacf.bitnet

or

J. L. Lebowitz

Department of Mathematics

Hill Center - Busch Campus

Rutgers University

New Brunswick, New Jersey 08903

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

Date: 29 Oct 87 18:13:09 GMT

From: Sid Dalal <sid@bellcore.bellcore.com>

To: na@score.stanford.edu

I am interested in knowing about programs for evaluating the function

F(l,m;n;z)

(see p555, Abramowitz & Stegun, note this is not the same as confluent

hypergeometric function defined on p.505) for integers l, m,n and z in [0,1].

Specifically I am interested in situation where n=m+1. Thank you.

Please respond by mail as I don't often read netnews. Thanks.

Sid R. Dalal

bellcore!sid

sid@wind.bellcore.com

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

Date: Thu, 29 Oct 87 13:41:09 EST

From: Kermit Sigmon <sigmon%beach.cis.ufl.edu@RELAY.CS.NET>

To: na@SCORE.STANFORD.EDU

POSITIONS AVAILABLE IN NUMERICAL ANALYSIS

University of Florida

Department of Mathematics

The Department of Mathematics is in its second year of a five year program to

fill over 20 new tenure track faculty positions with mathematicians of

exceptional caliber. At least one third of these positions will be

senior positions.

The Department invites applications for six tenure track positions beginning

Fall l988, two of which will be filled with senior appointments. Senior

candidates chosen by the department will be given a role in the selection of

this year's candidates for junior positions.

The Department is especially interested this year in attracting candidates in

the fields of:

Numerical Analysis

Combinatoricss

Mathematical Physics

Algebra

Candidates should have strong research potential and a documented interest

in teaching. Preference will be given to applicants with at least two years

of postdoctoral experience. Rank and salary will be commensurate with

experience and achievements.

Candidates should forward a resume (including a list of publications) and

should arrange for at least three letters of reference to be sent to:

Gerard G. Emch, Chairman

Department of Mathematics

University of Florida

Gainesville, FL 32611

All applications for the academic year 1988-89 must be complete by

December 31, l987. The University of Florida is an equal opportunity employer.

If further information is desired, candidates in numerical analysis may

contact: Kermit Sigmon

904-392-0287

na.sigmon@su-score

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

Date: Fri, 30 Oct 87 11:55:55 cst

From: Hans Schneider <hs@vanvleck.math.wisc.edu>

To: na@score.stanford.edu

LINEAR ALGEBRA AND ITS APPLICATIONS

Special Issue in

LINEAR ALGEBRA IN IMAGE RECONSTRUCTION FROM PROJECTIONS

Contributions are invited for a special issue of Linear Algebra and

Its Applications which will be devoted to Image Reconstruction From

Projections. Original research articles that make a significant

contribution to the field of image reconstruction from projections

through the use of matrix theory and finite dimensional linear algebra

are welcome. In this context, finite dimensional optimization theory

and techniques are not ruled out.

Any discipline for which image reconstruction is used will be

considered, e.g., medicine, material testing, astronomy, optics,

geophysics, atmospheric research. There is no restriction as to the

modalities or underlying physical models, in medical imaging, for

example, CT, PET, MRI, Ultrasound are included.

Usually discretization (full or partial) of the model at an early

stage of the analysis leads to finite dimensional linear algebra;

authors are encouraged to include a concise introductory section

describing the particular image reconstruction problem(s) they address

and the modeling process.

Papers may include mathematical results within the scope of LINEAR

ALGEBRA AND ITS APPLICATIONS (published in every issue of the journal)

which are motivated by, contributing to, or applicable to problems and

methods of image reconstruction. Papers demonstrating through

computational experimental work the use of established linear algebra

based methods in image reconstruction are also very welcome.

The issue is open to all and papers will be refereed in the usual way.

The deadline for submission is 30 November 1988, with expected

publication in the Fall of 1989. Authors should submit five copies of

the manuscript (prepared according to the guidelines described in

"Information for Authors" published in every issue of LAA) to one of

the following special editors:

Yair Censor

Department of Mathematics and Computer Science

University of Haifa

Mt. Carmel, Haifa 31999, Israel.

e-mail: rsma403@haifauvm.bitnet

Tommy Elfving

Department of Mathematics

Linkoping University

S-58183, Linkoping, Sweden.

e-mail: t-elfving%linnea.liu.se@uunet.uu.net

Gabor T. Herman

Medical Imaging Section

Department of Radiology

Hospital of the University of Pennsylvania

3400 Spruce Street

Philadelphia, Pennsylvania 19104, U.S.A.

e-mail: herman@cis.upenn.edu

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

Date: Fri, 30 Oct 87 17:15:43 CST

From: Phuong Vu <phuong@rice.edu>

To: na@score.stanford.edu

The Mathematical Software Group at Cray Research, Inc.

located in Mendota Heights, Minnesota

have immediate openings for several numerical analysts

to conduct research/development of algorithms and software

for large scale scientific computations. Candidates should

have a Ph.D. in computer science or mathematics, some

experience in computations on vector/parallel computers

in one of the following areas (sparse matrix methods,

numerical linear algebra, numerical PDE, numerical optimization)

and a strong interest in software development.

The group is highly visible and the growth potential is

tremendeous. Cray Research offers a competitive salary and

benefits package along with an excellent working environment.

Qualified candidates should forward resume, letters of

recommendation and academic transcripts to

Phuong Vu

Cray Research, Inc.

2000 Bering Drive, Suite 830

Houston, Texas 77057

Requests for further information can be done using either of the

following E-addresses: phuong@rice.edu or na@phuong@score.stanford.edu.

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

Date: Sat, 31 Oct 87 15:51 EST

From: Edward Wegman <EWEGMAN%GMUVAX.BITNET@forsythe.stanford.edu>

To: na@score.stanford.edu

ANNOUNCEMENT AND CALL FOR PAPERS FOR THE

SYMPOSIUM ON THE INTERFACE: COMPUTING SCIENCE AND STATISTICS

(The 20th Meeting)

Theme: Computationally Intensive Methods in Statistics

April 21-23, 1988

Reston, VA (Suburban Washington, DC)

Sponsors:

The Interface Foundation of North America, Inc.

George Mason University

The National Bureau of Standards

Cooperating Societies:

American Statistical Society

Institute of Mathematical Statistics

Washington Statistical Society

International Association for Statistical Computing

Society of Industrial and Applied Mathematics

American Mathematical Society

Operations Research Society of America

National Computer Graphics Association

GENERAL INFORMATION

The Twentieth Symposium on the Interface of Computing Science and

Statistics will be held at the Sheraton International Conference

Center in Reston, Virginia on April 21-23, 1988. The Symposium is

a long-standing interdisciplinary forum focusing on the interface

between statistics and computing. The focus of the 20th Symposium

will be computationally intensive methods in statistics. Professor

Brad Efron of Stanford University will give the keynote address on

this theme and sessions are organized with this theme in mind. Planned

invited sessions on computationally intensive methods include:

Computational Aspects of Time Series

Design of Computer Experiments

Image Processing and Spatial Processes

Computation and Stochastic Modeling

Computation for Simulated Annealing

Inference and Expert Systems

Simulation

Bayesian Computation

Density Estimation and Smoothing

Dynamical High Interaction Graphics

Design of Experiments for Productivity Enhancement

Entropy Methods

In addition, planned invited sessions which support computationally

intensive methods include:

Computational Geometry

Parallel Architectures

Visualizing High Dimensional Spaces

Object Oriented Programming

Computational Discrete Mathematics

Communication Networks

Symbolic Computing

Numerical Methods

Neural Networks

CONTRIBUTING PAPERS

Sessions will include invited talks, contributed talks and exhibits.

An opening night reception is planned as well as a banquet. An

extensive exhibit area is also planned. Contributed presentations

will be selected by the program committee and will last for 20 minutes.

Authors who wish to contribute a paper should submit a written abstract

no later than January 15, 1988. The abstract should be no longer than

one page. Abstract of both contributed and invited papers will be

available at the Symposium. The abstract and inquiries should be

sent to:

Professor Edward J. Wegman

Interface Symposium

P.O. Box 7460

Fairfax Station, VA 22039-7460

(703) 323-2723

Bitnet: EWEGMAN@GMUVAX

Conference Proceedings will be published by the American Statistical

Association after the Symposium. Camera-ready copy of the contributed

and invited papers will be due on June 1, 1988. The Proceedings will

include both invited and contributed papers.

HOUSING

The Symposium will be held at the Sheraton International Conference

Center in Reston, VA (suburban Washington, DC) on the 21st through

the 23rd of April, 1988. April is an extremely attractive time in

Washington coinciding with the blooming of the famous cherry blossoms.

Free shuttle service is provided by the Sheraton to and from nearby

Dulles Airport. A commercial airport bus service is available from

Washington National Airport. Hotel rates are quite reasonable for the

peak of the tourist season ($79 for a single on Wednesday and Thursday and

$45 for a single on Friday and Saturday). A block of rooms has been

reserved and attendees are expected to make their own reservations.

Because this is a peak tourist season, early reservations are strongly

encouraged. Reservations can be made by calling (800) 325-3535 or (703)

620-9000. Make sure to identify yourself as being associated with the

Interface Symposium. Registration and welcoming reception will take place

on Wednesday, April 22, 1988.

PROGRAM COMMITTEE

Edward J. Wegman, Program Chairman

George Mason University

Emanuel Parzen, Texas A & M University

Werner Stuetzle, University of Washington

Jerome Sacks, University of Illinois

Donald McClure, Brown University

Richard Ringeisen, Clemson University

Martin Fischer, Defense Communications Agency

Nozer Singpurwalla, George Washington University

Donald T. Gantz, George Mason University

Prem Goel, Ohio State University

David Scott, Rice University

Paul Tukey, Bell Communications Research

Mervin Muller, Ohio State University

Raoul LePage, Michigan State University

Sallie McNulty, Kansas State University

Muhammed Habib, University of North Carolina

John Miller, George Mason University

INTERFACE FOUNDATION

The Interface Symposium has for 20 years been operated by an informal,

loosely organized group. While this has worked well in the past, as

the scale of computing in statistics and the scale of the Symposium has

grown, it has been increasingly difficult to operate on this informal basis.

In August of 1987, the Interface Foundation of North America, Inc. (IFNA)

was founded. IFNA is a non-profit, educational foundation whose aim is

to promote the Interface Symposium and all related activities at the interface

of comptuing science and statistics. The 20th Symposium will be the first

formal activity of the new foundation. Additional Symposia are scheduled

for Orlando, Florida in 1989 and for East Lansing, Michigan in 1990.

ADDITIONAL SPONSORSHIP

The IFNA has applied for support from the AFOSR, the ARO, the ONR, the

NSF and the NSA> Contingent upon support from these organizations, a fund

for graduate students and young investigators will be established to support

travel and per diem. Please send in the attached form for further information.

REGISTRATION

The regular registration fee for members of cooperating societies is $105

and for non-members is $130. A preregistration discount is being offered

to those who register early. For registrations received before January 15,

1988 the registration fee will be $95 for members of cooperating societies

and $120 for non-members. The registration fee will include a copy of the

Proceedings and the opening night reception. For further information, to

be put on the IFNA mailing list and/or to register, please return the

form below.

SYMPOSIUM ON THE INTERFACE OF COMPUTING SCIENCE AND STATISTICS

April 21 - 23, 1988

Sheraton International Conference Center

Reston, Virginia

Name:

Affiliation:

Address:

Telephone:

Electronic Mail Address:

Registration Fee Enclosed /_/ $105 Members /_/ $130 Non-members

Early Registration /_/ $ 95 Members /_/ $120 Non-members

(Before January 15, 1988)

/_/ Please send additional information when it becomes available

/_/ I am interested in presenting a contribute paper with the title

/_/ I cannot come but am interested in purchasing the Proceedings

/_/ I would be interested in a reduced subscription rate to CHANCE,

the new Springer-Verlag statistics magazine

/_/ I would be interested in joining a new professional society

oriented to the interface of statistics and computing. (If there

is sufficient interest, the Board of Directors of the Interface

Foundation will consider establishing such a society.

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

Date: Sat 31 Oct 87 16:52:23-PST

To: na@Score.Stanford.EDU

From: Cleve Moler <na.moler@score.stanford.edu>

Gene is too modest to mention this himself, but he has just been

awarded a Guggenheim Fellowship. About one out of ten who apply

for the fellowship are successful. It will cover his summer salary

next year. He plans to continue his research on sparse linear systems.

A list of all receipients in the mathematical sciences is included

in a recent issue of SIAM News. Congratulations, Gene!

--Cleve

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End of NA Digest

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