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

- Typo in "Templates..."
- Corrected Painless Conjugate Gradient Report
- Representation Errors for Bandlimited Functions
- Solution to a Block Toeplitz System
- Numerical Methods: Matlab Programs
- Change of Address for Keh-Ming Shyue
- Mathematical Support for Molecular Biology
- Conference on Modelling and Optimization
- A Workshop on Sparse Matrices
- Rocky Mountain Numerical Analysis Conference
- Object-Oriented Numerics Conference
- Positions at Univ. of Ioannina
- Position at University of Newcastle
- Positions at Dublin City University
- Position in Ticino, Switzerland
- Position at U. Texas, Permian Basin
- Position at the University of Liverpool
- Contents, Constructive Approximation
- Contents, Surveys on Mathematics for Industry
- Contents, SIAM Math Analysis
- Contents, SIAM Discrete Mathematics

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

From: Dirk laurie <WSKDPL@puknet.puk.ac.za>

Date: Thu, 04 Aug 94 20:00

**Subject: Typo in "Templates..."**

There is a typographical error in the QMR algorithm on page 24 of

"Templates for the Solution of Linear Systems: Building Blocks for

Iterative Methods" by Richard Barrett et al (SIAM 1994). The matrix M_2

on Line 4 of the pseudocode should be replaced by its transpose.

Correction of this error dramatically improves convergence in the case

where M_2 is upper triangular.

Dirk Laurie

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

From: Jonathan Shewchuk <Jonathan.R.Shewchuk@DUCK.WARP.CS.CMU.EDU>

Date: Fri, 5 Aug 94 00:35:07 EDT

**Subject: Corrected Painless Conjugate Gradient Report**

The corrected version of my Conjugate Gradient report is now available by

anonymous FTP:

An Introduction to the Conjugate Gradient Method

Without the Agonizing Pain

(Edition 1 1/4, Corrected)

Jonathan Richard Shewchuk

jrs@cs.cmu.edu

If you obtained a copy of the original report, please burn it and replace it

with the new one. The new version corrects all errors that I know of, and adds

a few more pages of intuition. Note that the new version is *NOT* available

from the same FTP site as the original version. (The copy at that site is

still the old version with the nasty errors.)

The corrected report is available by anonymous FTP to WARP.CS.CMU.EDU (IP

address 128.2.209.103) in the directory quake-papers/ . You may choose from

the files:

painless-conjugate-gradient.ps (Report; 600 and 300 dpi PostScript)

- or -

painless-conjugate-gradient.ps.gz (Gnuzip-compressed report)

- or -

painless-conjugate-gradient1.ps.gz \ (Compressed report broken up into

painless-conjugate-gradient2.ps.gz \ four PostScript files for small-

painless-conjugate-gradient3.ps.gz / memory printers. 300 dpi; looks

painless-conjugate-gradient4.ps.gz / ugly on 600 dpi printers.)

Also in the quake-papers/ directory:

painless-conjugate-gradient.abs (Abstract)

painless-conjugate-gradient-figs.ps (Full-page classroom transparencies)

painless-conjugate-gradient-figs.ps.gz (Gnuzip-compressed transparencies)

Remember to set FTP to binary mode when obtaining compressed files. The report

itself is formatted for a two-sided printer.

Comments and corrections are welcome and encouraged. Many thanks to all of

you who sent me comments about the original version; I can't begin to say how

helpful NA Digest readers have been. For those of you who have been waiting

too long for the corrected version, thanks for your patience.

Jonathan

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

From: Raghu Machiraju <raghu@cis.ohio-state.edu>

Date: Thu, 4 Aug 1994 09:18:58 -0400 (EDT)

**Subject: Representation Errors for Bandlimited Functions **

Any band-limited signal (1-D to begin with) can be resampled or interpolated

using the Cardinal functions S(k,h), namely:

f(x) = Sum S(k,h)(x) f(kh)where S(k,h) = sin[pi/h * (x-kh)] / [pi/h * (x-kh)] and the integer k is in the

k

set [-inf,inf]. So by resampling at a certain number of points one gets a new

grid (vary x).

My intention is to be able to estimate h so that the approximation

of the function f (obtained by truncating the infinite sum) g is within an

error bounds. In other words,

f(x) = Sum S(k,h)(x) f(kh) + Sum S(k,h)(x) f(kh)

-n<=k <=n abs(k) > n

f(x) = g(x,n,h) + e(x,n,h)

Here g() is the error in question. Frank Stenger at University of Utah has done

work in characterising the error that arises for functions represented as sum

of Cardinal functions. However the estimates are "global".

What I am looking for is the following -

Given a certain value of x at a grid, I would like to determine the value of

such that the error is bounded. Hence, the error estimates should depend on

n and x. The error estimates available in the literature either depend

on x alone or N, but not both.

Is there any published work which attempts to characterize the local error ?.

Such an estimate would allow for the adaptive processing of a given signal.

Raghu

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

From: Stan Kerr <stankerr@uiuc.edu>

Date: Fri, 5 Aug 1994 10:26:29 -0500

One of my clients sent me the note below, but since I'm not a researcher in

numerical analysis I can't help him very much. If anyone on the list has a

suggestion for him, I would be grateful to hear it.

I have run across the following type of partitioned linear system

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

| a b c b | | x1 | | y1 |

| b a b c | * | x2 | = | y2 |

| c b a b | | x3 | | y3 |

| b c b a | | x4 | | y4 |

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

where a, b, and c are NxN sub-matrices, the xi's are Nx1, and the

yi's are also Nx1. As a whole there are 4*N equations and unknowns.

If N=1, this would be a symmetric Toeplitz matrix, and I know

there are algorithms to solve such a system. Additionally in this

case, the matrix-vector multiplication can be written as a convolu-

tion and the system could be solved using FFT's. But in my case

N is some large number, 500 or more. Do you know of any specialized

method to solve such a system? It seems there should be a way to

take advantage of the symmetry present in the matrix. I would

appreciate any insight you might have.

(For my own reference, the client is James Bowen <jbowen@uxh.cso.uiuc.edu>)

Stan Kerr <stankerr@uiuc.edu> University of Illinois

Fax:217-244-7089 Phone:217-333-5217 Computing & Communications Services

Gayly Onward 1304 W. Springfield Urbana IL 61801

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

From: John Mathews <mathews@ccvax.fullerton.edu>

Date: 01 Aug 1994 06:24:17 -0800 (PST)

M-files now available from the MathWorks ftp site.

The unabridged: Numerical Methods: Matlab Programs 1994

To accompany: Numerical Methods: for Math, Sci & Engr

Prentice Hall, 1992 by John H. Mathews

ISBN 0-13-624990-6 P-H North America

ISBN 0-13-625047-5 P-H International

The M-files are available from:

ftp.mathworks.com [144.212.100.10]

/pub/toolkits/mathews.sh

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

From: Keh-Ming Shyue <shyue@math.ntu.edu.tw>

Date: Tue, 2 Aug 94 15:31:56 CST

Dear Colleagues,

Effective August 1, 1994, my new address is:

Department of Mathematics

National Taiwan University

Room 308, Old Math Building

Taipei, Taiwan

R. O. C.

E-mail: shyue@math.ntu.edu.tw

Phone: (8862) 362-0643 Ext 148

Fax: (8862) 391-4439

Sincerely yours,

Keh-Ming Shyue

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

From: Fred Roberts <froberts@dimacs.rutgers.edu>

Date: Sun, 31 Jul 94 21:31:53 EDT

DIMACS SPECIAL YEAR 1994-95

"MATHEMATICAL SUPPORT FOR MOLECULAR BIOLOGY"

DIMACS, the Center for Discrete Mathematics and Theoretical

Computer Science, a Consortium of Rutgers and Princeton Universities

and AT&T Bell Laboratories and Bellcore, is planning a 1994-95

"special year" on the topic Mathematical Support for Molecular

Biology. The program will start in August 1994 and run through August

1995, with some supplementary activities scheduled for the 1995-96

year.

The Special Year will focus on those topics in molecular

biology that seem especially amenable to treatment using the methods

of discrete mathematics and the related algorithmic approaches of

theoretical computer science. It is intended to expose a large

portion of the community of discrete mathematicians and theoretical

computer scientists to the problems of molecular biology that seem to

be fundamentally problems of their field; to provide an opportunity

for intensive collaboration to those discrete mathematicians and

theoretical computer scientists who have already discovered these

problems; to introduce some outstanding young people in the

mathematical sciences community to the field of

mathematical/computational biology in a very concentrated way; to

forge lasting partnerships between mathematical scientists and

biological scientists; to involve biologists in a primary role in

defining the agenda of computational biology; to introduce molecular

biologists to a community of mathematical scientists who are

interested in helping them solve their problems; and to develop a

long-term base and model for interdisciplinary research in this field.

The DIMACS Special Year will be chaired by Joachim Messing and

Fred Roberts of Rutgers University. It will be co-chaired by Lawrence

Shepp of AT&T Bell Laboratories and Michael Waterman of the University

of Southern California.

Further information about the special year can be obtained

from any of the chairs or co-chairs or by sending a message to

special@dimacs.rutgers.edu.

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

From: Jerzy Wasniewski <unijw@fysik.uni-c.dk>

Date: Tue, 2 Aug 1994 18:32:35 +0200 (MET DST)

First Announcement and Call for Papers

MODELLING AND OPTIMIZATION

OF DISTRIBUTED PARAMETER SYSTEMS

WITH APPLICATIONS TO ENGINEERING

Warsaw, Poland, July 17-21, 1995

Systems Research Institute, Polish Academy of Sciences

GENERAL INFORMATION

The conference is coordinated with the 17th IFIP Conference on System

Modelling and Optimiization, Prague (The Czech Republic), July 10-14,

1995. It is the next one in the series of the conferences sponsored by

the IFIP Working Group WG 7.2 "Computational Techniques in Distributed

Systems."

The aim of the Conference is to present the newest results and exchange

the ideas between people working on theoretical and numerical aspects

of modelling and optimization of distributed parameter systems and

those interested in engineering applications (with emphasis on

mechanical engineering and environmental problems).

TOPICS OF THE CONFERENCE

1. PDE's and variational inequalities with applications.

2. Inverse problems in PDE's.

3. Approximation and regularization methods.

4. Numerical methods and algorithms.

5. Control and optimization.

6. Sensitivity and stability analysis.

7. Shape optimization.

8. Modelling of behavior of nonlinear materials

(e.g., hysteresis, memory and shape memory effects) in DPS.

INTERNATIONAL PROGRAM COMMITTEE

Chairperson:I. Lasiecka (Charlottesville, USA)

A. Bermudez (Santiago de Compostela), A. Bogobowicz (Waterloo),

G. Da Prato (Pisa), M. Delfour (Montreal), L. Demkowicz (Austin),

M. Dryja (Warsaw), R. Glowinski (Houston), K.-H. Hoffmann (Munich),

W. Krabs (Darmstadt), A. Kurzhanskii (Moscow), G. Leugering (Bayreuth),

K. Malanowski (Warsaw), Z. Mroz (Warsaw), M. Niezgodka (Warsaw),

J. Puel (Palaiseau), J. Simon (Aubiere), J. Sokolowski (Nancy),

F. Troeltzsch (Chemnitz), J. Wasniewski (Lyngby), A. Wierzbicki (Warsaw),

J.-P. Yvon (Compiegne), J.-P. Zolesio (Sophia Antipolis).

LOCAL ORGANIZING COMMITTEE

P. Holnicki, K. Malanowski (Chairman), A. Myslinski,

Z. Nahorski (Vice-Chairman), R. Ostrowski,

M. Peszynska (Secretary), A. Zochowski.

CONTACT ADRESS

Dr. Malgorzata Peszynska

IFIP Conference

Systems Research Institute

Polish Academy of Sciences

Newelska 6, PL-01-447 Warsaw

POLAND

tel. (+4822) 364414, 370521

fax (+4822) 372772

e-mail ifip@ibspan.waw.pl

CALL FOR PAPERS

Authors wishing to present papers are requested to send a copy of an

enlarged abstract (1-2 pages in English) to the Secretary prior to

February 28, 1995 for reviewing by the International Program

Committee. Notification on acceptance will be mailed before April 30,

1995. Materials of the Conference shall be published after the

Conference.

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

From: Jerzy Wasniewski <unijw@fysik.uni-c.dk>

Date: Tue, 2 Aug 1994 22:18:33 +0200 (MET DST)

U N I - C & I M M S E M I N A R

The Danish Computing Centre

for Research and Education

and

Numerical Analysis Group of the

Institute for Mathematical Modelling

of the Technical University of Denmark

DTU, Bldg. 305, Room Nr 205

DK-2800 Lyngby, Denmark

Wednesday, August 10, 1994

Between 10.00 (10am) and 15.00 (3pm)

A MINIWORKSHOP ON SPARSE MATRICES

Iain Duff from Rutherford Appleton Laboratory, UK and

CERFACS, France; "A block projection method for the

solution of large sparse unsymmetric linear equations"

Zahari Zlatev, National Environmental Research Institute;

"Solving large and sparse linear least squares problems"

Iain Duff from Rutherford Appleton Laboratory, UK and

CERFACS, France; "A review of frontal methods for solving

linear systems"

Hans Bruun Nielsen, Numerical Analysis Group, IMM, DTU;

"Solving augmented systems arising from piping networks"

The abstracts are available by anonymous ftp.

ftp ftp.denet.dk (or 129.142.6.74)

anonymous

<your email address>

cd denet/para/sparse

The workshop is free of charge but you should register by sending email

to me.

Host: Jerzy Wasniewski, UNI-C

Tel: (+45) 42 88 39 99 + 2426

Fax: (+45) 45 93 02 20

Email: jerzy.wasniewski@uni-c.dk

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

From: Benito Chen <chen@cuervo.uwyo.edu>

Date: Tue, 2 Aug 94 14:22:02 -0600

FIRST ANNOUNCEMENT

ROCKY MOUNTAIN NUMERICAL ANALYSIS AND APPLICATIONS CONFERENCE

The Rocky Mounatain Numerical Analysis and Applications Annual Conference

will be held on the campus of the University of Utah in Salt Lake City

during the days of July 31 to August 2, 1995. The object is to have an

informal meeting of interested people to give talks, discuss problems,

share ideas and have a good and productive time with colleagues. The

presentations should be of about 30 minutes in length, with the possibility

of some longer talks. There will also be two special workshops, one on

Sinc functions and the other on simulation of flow in poroue media.

We are in the process of obtaining funds for local housing.

If you are interested in participating, please send a short abstract,

including your e-mail address to one of the co-organizers.

For more information, please contact:

Benito Chen Frank Stenger

Math Department Computer Science Department

P.O. Box 3036 4017 Engineering

Laramie, WY 82071 Salt Lake City, UT 84112

(307)766-2280 (801)585-SINC

bchen@uwyo.edu stenger@sinc.cs.utah.edu

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

From: Margaret Chapman <MARGARET@roguewave.com>

Date: Fri, 5 Aug 1994 08:59:11 PST

CALL FOR PARTICIPATION

OONSCI '95

The Third Annual Object-Oriented Numerics Conference

Jackson Lake Lodge, Wyoming

May 21-24, 1995

PROGRAM COMMITTEE:

Ian Angus, Boeing Computer Services

Kent Budge, Sandia National Laboratories

Paul Dubois, Lawrence Livermore National Laboratory

Charlie Finan, Cray Research

Dennis Gannon, Indiana University

Ronald Goossens, National Semiconductor

Wouter Joosen, K.U. Leuven, Belgium

Al Vermeulen, Rogue Wave Software

James Wiley, University of Texas

Margaret Chapman, Program Coordinator, Rogue Wave Software

Scientific application software continues to grow in complexity due

to increasing functionality, evolution of codes, the use of

parallelism, and other factors. As a result, more and more time is

spent writing and maintaining computer code, and less time is spent

on the application itself. Object technology offers a way to break

this cycle. Structuring applications as assemblages of software

objects, rather than as monolithic programs, may pave the way for

more efficient and complex applications by making software reusable,

distributable, and modular.

The annual OONSCI conference (formerly known as OONSKI) promotes the

use of object technology for constructing numerical applications.

OONSCI provides a forum for computer scientists and scientific

programmers, in both academe and industry, to learn about issues

related to object-oriented programming and discuss their experiences.

SCOPE:

Examples of appropriate topics include:

* experiences with object technology

* use of non-programming language specific objects - for

example, CORBA or Visual Basic controls.

* object-oriented languages and environments

* object-oriented design

* reusable software objects

* performance issues related to object-oriented programming

Application domain specific papers should focus on the

object-oriented techniques used. Sample application domains of

interest to OONSCI are:

* image processing

* computer graphics

* CAD

* PDE solvers

* engineering

SUBMISSION DEADLINES:

December 16, 1994

* Tutorials

January 16, 1995

* Papers

* Survey papers

* Panels

* Posters

For submission guidelines contact:

Margaret Chapman

Program Coordinator

Rogue Wave Software

FAX:(503) 757-6650

Email: amc@roguewave.com

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

From: Akis Lagaris <lagaris@cc.uoi.gr>

Date: Mon, 1 Aug 94 12:03:20 +0300

Positions at the Computer Science Department- University of Ioannina - Greece.

The university of Ioannina invites applications in order to fill two

positions in the newly founded Department of Computer science.

I) One position at the level of Lecturer,

in the area of "Information Systems" with emphasis on:

Computer architecture, parallel processing, computer networks,

operating systems, data bases.

II) One position at the level of assistant professor,

in the area of "Theory of Computation and Programming languages"

with emphasis on:

Automata, computability, complexity, algoritms,

Data structures, computational linguistics, programming languages,

symbolic manipulation.

The above are tenure track positions.

The deadline for application submition is the 24th of October 1994.

For more information please contact:

M. Ntaflou (CS- Secretary)

Fax/Phone: +30 (651) 42914

Address: Domboli 30

45110 Ioannina

GREECE

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

From: Chris Petrie <Chris.Petrie@newcastle.ac.uk>

Date: Mon, 1 Aug 1994 17:31:05 +0100 (BST)

UNIVERSITY OF NEWCASTLE UPON TYNE

DEPARTMENT OF ENGINEERING MATHEMATICS

TEMPORARY LECTURESHIP, GRADE IA

(TWO YEAR APPOINTMENT)

Applications are invited for a two year temporary Lectureship which is

available from 1st September 1994. The position has been created in

connection with the impending retirement of Professor Alan Jeffrey. The

person appointed will be expected to contribute generally to the wide

range of courses in Engineering Mathematics provided for students in the

Faculty of Engineering, from Foundation Year level to postgraduate. An

interest in course development is desirable as changes in the content of

degrees in different engineering disciplines frequently requires

corresponding initiatives in Engineering Mathematics. A major

initiative at present involves the implementation of semester-based

modular teaching from October 1994. Opportunities for research include

involvement with other Departments in the Faculty in areas of mutual

interest, whether in the form of collaborative projects or in the joint

supervision of research students, and this is reflected in the fact that

the staff establishment of the Department has always included both

engineers and mathematicians.

Salary will be at an appropriate point on the Lecturer Grade A scale:

#14,756-#19,326 p.a., according to qualifications and experience.

No forms of application are issued. Further particulars may be obtained

from the Director of Personnel, Registrar's Office, University of

Newcastle, 6 Kensington Terrace, Newcastle upon Tyne, NE1 7RU, with whom

three copies of applications, including a full c.v. with present salary

and the names and addresses of three referees, should be lodged not

later than 19th August, 1994.

E-mail enquiries to Evelyn.Kelly@ncl.ac.uk or Chris.Petrie@ncl.ac.uk

Department of Engineering Mathematics,

University of Newcastle upon Tyne,

Newcastle upon Tyne, NE1 7RU, U.K.

Telex 53654 UNINEW G

FAX +44 - 91 - 261 - 0191

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

From: Alastair Wood <75001683@vax1.dcu.ie>

Date: Tue, 02 Aug 1994 11:20:36 +0000 (GMT)

DUBLIN CITY UNIVERSITY

School of Mathematical Sciences

Senior Lectureship

Contract Assistant Lectureship (10 months)

The School has built up a strong record in basic and contract research in the

areas of applied and numerical analysis and stochastic processes and has

attracted a substantial group of research students. It is responsible for the

B.Sc. in Mathematical Sciences, including the new option in Financial and

Actuarial Mathematics, and the M.Sc. in Industrial Applied Mathematics.

There is an extensive service teaching role throughout the university.

For the senior position, preference will be given to candidates with a

substantial teaching and research record in Numerical Analysis.

They will be expected to provide academic leadership and supervision of

research students in this area.

There is also a vacancy for a temporary assistant lecturer in numerical

analysis from 1 September 94. Candidates should have a Ph.D. in the area

and some teaching experience. Application should be made as soon as

possible to Dr. Alastair Wood, Head of School (e-mail wooda@dcu.ie,

Fax +353 1 704 5786).

Salary Scale:

Senior Lecturer: 29,444 - 38,810

Assistant Lecturer: 16,749

Salaries are Irish pounds p.a.. The Irish pound is currently at par with

sterling and worth $1.53.

Closing Date: 23 September 1994 for the senior position

As soon as possible for the contract position.

Application forms for the permanent position and further details are available

from The Personnel Office, Dublin City University, Dublin 9.

Tel: +353 1 7045149.

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

From: Will Sawyer <sawyer@serd.cscs.ch>

Date: Wed, 3 Aug 1994 16:36:15 --100

Centro Svizzero di Calcolo Scientifico (CSCS), located in Manno,

Ticino, part of the Swiss Federal Institute of Technology in

Zurich, has an immediate opening for a full-time

SOFTWARE ENGINEER IN PARALLEL COMPUTING

Swiss Scientific Computing Center

Centro Svizzero di Calcolo Scientifico

in the Section of Research and Development (SeRD). SeRD conducts

an application-oriented research and development program in the

fields of computer and computational sciences.

This work concentrates on porting existing scientific

applications onto parallel systems, as well as developing new

parallel distributed algorithms to support a wide variety of

scientific codes. Applicants must have a high level of

competence in Fortran and C/C++, a successful track record in

parallel programming with message passing paradigms and/or data

parallel languages, experience in Software Engineering in large

projects, and exceptional teamwork abilities. Background in

Numerical Methods, in particular Linear Algebra, is an asset.

All applicants should have two to four years of working

experience with parallel computer systems, a relevant degree in

Computer Science, physical sciences, or Mathematics.

An appointment will be initially for one year, but can be

extended. None of these positions involve teaching duties. CSCS

offers excellent working conditions.

Applicants should send a CV, and a letter of introduction to:

CSCS

Swiss Scientific Computing Center

Galleria 2

Via Cantonale

CH-6928 Manno

SWITZERLAND

attn: Ms. Carla Parini

The closing date for applications is Aug. 26, 1994.

Applications through recruitment agencies or by electronic mail

will not be considered.

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

From: Marcin Paprzycki <PAPRZYCKI_M@gusher.pb.utexas.edu>

Date: Thu, 4 Aug 1994 5:19:39 -0500 (CDT)

One-year visiting position starting September 1, 1994

One year sabbatical leave replacement (at the level of Assistant

Professor) is available at the Department of Mathematics and

Computer Science of the University of Texas of the Permian Basin.

The candidate should specialize in PARALLEL COMPUTING. The

department already has two faculty members interested in parallel

real-time systems and parallel numerical linear algebra. The

duties will include research and teaching of undergraduate

courses in mathematics and possibly computer science. The

teaching load is 3 courses per semester. The salary will be no

more than $30,000 (non-negotiable) and will depend on

qualifications. The candidate must have permission to work in

the U.S. prior to submitting the application. UTPB is an

Equal Opportunity Employer.

Since the time is short, please e-mail immediately your resume,

description of your research interests and a statement describing

your teaching philosophy to:

Marcin Paprzycki

paprzyck@plpuam11.amu.edu.pl

(or paprzycki_m@gusher.pb.utexas.edu)

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

From: Cliff Addison <cliff@supr.scm.liv.ac.uk>

Date: Fri, 5 Aug 94 09:11:05 BST

Applications are invited for a 3-year postdoctoral Research Position

funded by the UK EPSRC in the Institute of Advanced Scientific

Computation at the University of Liverpool, UK. The start date is 1st

October, or as soon as possible thereafter.

The project concerns the development of effective parallel

preconditioners for the iterative solution of nonsymmetric, sparse

linear systems. The work will involve a) theoretical analysis, b)

consequent development of efficient and reliable mathematical software

and c) testing the methods on systems which arise in real applications

on a variety of parallel platforms.

Applicants should have, or shortly expect to receive, a PhD in

Computational Mathematics or an allied subject. In addition, they

should have some experience with parallel computing and a solid

foundation in linear algebra.

The Salary is on standard UK academic scales, up to a maximum of around

16,600 pounds. The work will be carried out in cooperation with NAG

Ltd. and the Department of Computer Science, Newcastle University.

For further information please contact, as soon as possible, either:

Dr. C. Addison or Dr. R. Wait

E-mail: cliff@liverpool.ac.uk E-mail: wait@liverpool.ac.uk

Phone: 051 794 4738 Phone: 051 794 4740

FAX: 051 794 4754 FAX: 051 794 4754

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

From: E. B. Saff <esaff@gauss.math.usf.edu>

Date: Mon, 1 Aug 94 16:53:10 EDT

Contents

CONSTRUCTIVE APPROXIMATION

Volume 10, Number 3, 1994

301 Doron S. Lubinksy and Vilmos Totik

Weighted Polynomial Approximation with Freud Weights

317 Clemens Markett

Linearization of the Product of Symmetric Orthogonal Polynomials

339 S. Bloom and G. S. De Souza

Weighted Lipschitz Spaces and Their Analytic Characterizations

377 D. P. Dryanov

Polynomials of Minimal L_{\alpha}-Derivation, \alpha>0

411 P. Borwein and T. Erd\'{e}lyi

Markov-Bernstein-Type Inequalities for Classes of

Polynomials with Restricted Zeros

427 L. Frerick and J. M\"{u}ller

Polynomial Approximation and Maximal Convergence on Faber Sets

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

From: Heinz W. Engl <engl@indmath.uni-linz.ac.at>

Date: Tue, 02 Aug 1994 14:50:10 EDT

Surveys on Mathematics for Industry

(Springer-Verlag Vienna/New York)

Table of Contents, Vol.4, Issues 1 and 2

B.Benninghofen, Image processing and numerical methods for the

approximation of terrain data

G.H.Meyer, D.B.Singleton, Front tracking for the supercooled Stefan problem

T.A.Foley, H.Hagen, Advances in scattered data interpolation

V.I.Mazhukin, A.A.Samarskii, Mathematical modelling in the technology

of laser treatment of materials

Heinz W. Engl, Managing Editor

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

From: SIAM <tate@siam.org>

Date: Tue, 02 Aug 94 12:16:44 EST

Contents

SIAM Journal on Math Analysis

Volume 25, Number 5, September 1994

The Influence of Domain and Diffusivity Perturbations on the Decay of End

Effects in Heat Conduction

Changhao Lin and L. E. Payne

Elliptic Equations in Divergence Form Geometric Critical Points of Solutions,

and Stekloff Eigenfunctions

G. Alessandrini and R. Magnanini

Approximation of Attractors by Algebraic or Analytic Sets

C. Foias and R. Temam

Investigations of Solutions of Nonlinear Hyperbolic Equations with a Small

Nonlinearity and Applications

A. Lada

Nonlinear Perturbation of Boundary Values for Reaction-Diffusion Systems:

Inertial Manifolds and Their Applications

Yoshihisa Morita, Hirokazu Ninomiya, and Eiji Yanagida

A Free Boundary Problem Modeling Thermal Instabilities: Well-Posedness

Michael L. Frankel and Victor Roytburd

On a Nonlinear Integrodifferential Drift-Diffusion Semiconductor Model

Jin Liang

The Stability of the Equilibrium of a Nonlinear Hill's Equation

Rafael Ortega

Matched Expansion Solutions of the First Order Turning Point Problem

L. A. Skinner

Discrete Spline Filters for Multiresolutions and Wavelets of L2

Akram Aldroubi, Murray Eden, and Michael Unser

Wavelet Analysis of Refinement Equations

Lars F. Villemoes

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

From: SIAM <young@siam.org>

Date: Wed, 03 Aug 94 16:53:44 EST

Table of Contents

SIAM Journal on Discrete Mathematics

Volume 7, Number 4, November 1994

Predicting Cause-Effect Relationships from Incomplete Discrete Observations

E. Boros, P. L. Hammer, and J. N. Hooker

A Coding Approach to Signed Graphs

Patrick Sole and Thomas Zaslavsky

Generalized Hamming Weights of Melas Codes and Dual Melas Codes

G. Van Der Geer and M. Van Der Vlugt

Ramanujan Diagrams

Moshe Morgenstern

On Path-Tough Graphs

Peter Dankelmann, Thomas Niessen, and Ingo Schiermeyer

A New Class of Pyramidally Solvable Symmetric Traveling Salesman Problems

Jack A. A. Van Der Veen

Drawing Graphs on Surfaces

Arjana Zitnik

On Universal Cycles for k-subsets of an n-set

Glenn Hurlbert

Further Results on T-coloring and Frequency Assignment Problems

Arundhati Raychaudhuri

A Linear-Time Algorithm for Isomorphism of Graphs of Bounded Average Genus

Jianer Chen

Optimal Parallel Algorithms for Straight-line Grid Embeddings of Planar Graphs

Ming-Yang Kao, Martin Furer, Xin He, and Balaji Raghavachari

Treewidth of Circular-Arc Graphs

Ravi Sundaram, Karan Sher Singh, and C. Pandu Rangan

New 3/4-Approximation Algorithms for the Maximum Satisfiability Problem

Michel X. Goemans and David P. Williamson

Homomorphic Zero-Knowledge Threshold Schemes over Any Finite Abelian Group

Yvo G. Desmedt and Yair Frankel

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

End of NA Digest

**************************

-------