o - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - o - - - February 9, 1995 - - O P - S F N E T Volume 2, Number 1 - - ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - - Tom H. Koornwinder, Editor thk@fwi.uva.nl - - - - - - The Electronic News Net of the SIAM Activity Group - - on Orthogonal Polynomials and Special Functions - - - - Please send contributions to: poly@siam.org - - & address changes to: poly-request@siam.org - - - o - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - o Today's Topics: 1. I. Macdonald speaking in Seminaire Bourbaki 2. Nancy Seminar on Dunkl operators and applications 3. Toronto Workshop on Special Functions, q-Series and Related Topics 4. q-Special Functions at Prague Quantum Groups meeting 5. CRM Workshop on the Theory of Special Functions 6. Celebration of Gabor Szego in Hungary 7. New Memoir on Spectral Theory and Orthogonal Polynomials 8. Continuation of the three-volume Vilenkin-Klimyk book 9. Lecture Notes on Affine Hecke algebras and Macdonald conjectures 10. New book on Orthogonal Polynomials in Several Variables 11. New Book on A Numerical Library in C 12. Electronic Guide to Available Mathematical Software 13. Change of Address for WWW home page of J. Approx. Theory 14. New email address of AT-NET 15. Phone, fax and email address changes at University of Leuven 16. Recent additions to ftp site on orthogonal polynomials and related special functions 17. Obtaining back issues and contributing to future issues of OP-SF Net and the Newsletter Calendar of events: see issue/topic: 1995 March 12: I. Macdonald's seminaire Bourbaki lecture 2.1 #1 March 17-18: Session "Approximation Theory and Special Functions" 1.7 #6 March 20-22: Stieltjes Colloquium in Toulouse 1.7 #7 March 31,April 1: Nancy Seminar on Dunkl operators and applications 2.1 #2 May 29-June 2: Formal Power Series and Combinatorics, Paris 1.8 #13 June 9-10: Lee Lorch Conference 1995 1.7 #8 June 12-23: Fields Institute program on Special functions etc. 2.1 #3 June 22-24: q-Special Functions at Prague Quantum Groups meeting 2.1 #4 July 3-7: Minisymposium at ICIAM '95, Hamburg: "Orthogonal Polynomials and Spectral Methods" 1.8 #16 July 19-21: First Maghrebian Colloquium on Analysis 1.9 #4 1996 May 6-26: CRM Workshop on the Theory of Special Functions 2.1 #5 Topic #1 --------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: Announcement leaflet Subject: I. Macdonald speaking in Seminaire Bourbaki A session of the Seminaire Bourbaki will be held in Paris on 11-12 March 1995. One of the speakers will be Ian Macdonald: Time: Sunday, March 12, 14.00 hour Place: Institut Henri Poincare, 11 rue Pierre et Marie Curie, Paris 5e, France Speaker: I. Macdonald Subject: Affine Hecke algebras and orthogonal polynomials Topic #2 --------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: Charles Torossian Subject: Nancy Seminar on Dunkl operators and applications Universite de Nancy I Operateurs de Dunkl et Applications Friday March 31 and Saturday April 1, 1995 Seminaire Nancy-Metz-Strasbourg Friday, March 31: 10.30 Charles Torossian (CNRS-Nancy 1): Introduction aux operateurs de Dunkl, operateurs d'entrelacement et multiplicites singulieres. 11.30 Dominique Manchon (CNRS-Nancy 1): Systeme de Bessel et analyse harmonique tangente pour les operateurs de Dunkl. 14.15 Abdel Latif Mortajine (Nancy 1): Une application des operateurs de shift aux conjectures de Mehta et du terme constant. 15.30 Jean-Philippe Anker (Nancy 1): Operateurs de Cherednik et analyse harmonique. 17.00 Gerrit Heckman (Nijmegen): Branched coverings of discriminants. Saturday, April 1: 10.00 Tom Koornwinder (Amsterdam): Macdonald polynomials and affine Hecke algebras 11.15 Olivier Babelon (Paris 6): Systeme de Calogero-Moser. 14.00 Gerrit Heckman (Nijmegen): Spectral theory of Yang's system. 15.30 Jan Felipe van Diejen (Amsterdam): Families of commuting difference operators. Organizers: Dominique Manchon and Charles Torossian Address: Institut Elie Cartan BP 239 54506 Vandoeuvre les Nancy phone: +33-8391 2686 or +33-8391 2603 fax: +33-8328 0989 email: semidunk@iecn.u-nancy.fr Topic #3 --------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: David Masson Subject: Toronto Workshop on Special Functions, q-Series and Related Topics Workshop on Special Functions, q-Series and Related Topics Monday, June 12 to Friday, June 23, 1995 Media Room, University College University of Toronto, Toronto, Ontario, Canada This two-week program (an activity of the Fields Institute) was earlier announced in OP-SF Net 1.7, Topic 9. The following additional information is available now. - There are some changes in the list of invited speakers for the second week (see the list of invited speakers below) - Call for Contributed Papers: During each afternoon in the second week there will be parallel sessions for contributed talks. A title and abstract (and/or preprint) must be submitted for consideration. Contact Lynne Wight for further details and a registration package. - Registration: For a registration package please contact Lynne Wight by May 15, 1995 at: The Fields Institute, 185 Columbia Street West Waterloo, Ontario, Canada N2L 5Z5 e-mail: spfunct@fields.uwaterloo.ca Fax: (519) 725-0704 Phone: (519) 725-0096 Further details: Conference Advisory Committee: G.E. Andrews (Pennsylvania State University), R. Askey (University of Wisconsin, Madison), C.F. Dunkl (University of Virginia, Charlottesville), M.E.H. Ismail (University of South Florida, Tampa), T. H. Koornwinder (University of Amsterdam), D.R. Masson (University of Toronto), M. Rahman (Carleton University), S.K. Suslov (Kurchatov Institute, Russia), D. Zeilberger (Temple University) Mini-Courses: During the first week, June 12 - 16, there will be five mini-courses (three to four hours of lectures each) on the following topics. Topic: Lecturer: q-Series George Gasper (Northwestern University) Orthogonal Polynomials Walter Van Assche (Katholieke Universiteit Leuven) Asymptotics of Orthogonal Polynomials Paul Nevai (Ohio State University) Computer Algebra and Special Functions Doron Zeilberger (Temple University) Quantum Groups and q-Special Functions Tom Koornwinder (University of Amsterdam) Workshop: During the second week, June 19 - 23, there will be a workshop concentrating on the following research topics in relation to special functions and q-series (a different emphasis for each day): - Orthogonal Polynomials and Special Functions - Multivariable Theory - Number Theory and Combinatorics - Computer Algebra - Quantum Groups and Representation Theory For each topic there will be three invited speakers (one hour talks) and a selection of contributed papers. Invited Speakers for the Workshop will include: - Krishnaswami Alladi (University of Florida) - Bruce C. Berndt (University of Illinois) - David Chudnovsky (Columbia University) - Gregory Chudnovsky (Columbia University) - Pavel I. Etingof (Harvard University) - I.M. Gelfand (Rutgers University) - R.Wm. Gosper (Symbolics, Inc.) - Robert A. Gustafson (Texas A&M University) - D.M. Jackson (University of Waterloo) - Hendrik T. Koelink (Katholieke Universiteit, Belgium) - Christian Krattenthaler (Vienna University) - M. Noumi (University of Tokyo) - E. Opdam (University of Leiden, The Netherlands) - Peter Paule (Johannes Kepler University, Austria) - H.S. Wilf (University of Pennsylvania) - Yuan Xu (University of Oregon) Topic #4 --------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: C. Burdik Subject: q-Special Functions at Prague Quantum Groups meeting The International Colloquium on Quantum Groups and Integrable Systems will take place in Prague, Czech Republic during 22-24 June, 1995. The programme will include invited talks (40 min. duration) and a number of contributions (20 min. duration) to be followed by discussions to provide a more complete understanding of the related topics. The following topics will be discussed: - Quantum groups and Yangians - Representations of quantum groups and Yangians - Differential geometry on quantum groups - Modern aspects of integrability: quantum groups, quadratic algebras, other types of symmetries - Separation of variables, q-special functions Proceedings will be published after the Workshop in Czech. Jour. Phys B. Organizing Committee: - C. Burdik (Prague) - J.P. Gazeau (Paris) - M. Havlicek (Prague) - G. Chadzitaskos (Prague) - J. Lukierski (Wroclaw) - J. Tolar (Prague) Registration fee: US $100. Registration: before 30 March 1995 Submission of abstracts: before 30 April 1995 Address for registration and further information: C. Burdik Department of Mathematics Faculty of Nuclear Sciences and Physical Engineering Trojanova 13 CZ-120 00 Prague 2 Czech Republic phone: +42-2-296 137 fax: +42-2-290 572 email: burdik@km1.fjfi.cvut.cz Topic #5 --------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: Louis Pelletier Subject: CRM Workshop on the Theory of Special Functions CENTRE DE RECHERCHES MATHEMATIQUES Theme Year 1995-1996 APPLIED and NUMERICAL ANALYSIS The Centre de recherches mathematiques is hosting a year long program in applied and numerical analysis in 1995-1996. The year's activities will be devoted to the following subjects: applications to hydrodyna- mics, the mathematics of finance, and recent developments and methods (wavelets, neural networks, special functions). Elements of the program are organized jointly with the Centre de recherche en calcul applique (CERCA) or with the Centre interuniversitaire de recherche en analyse des organisations (CIRANO). The CRM Summer School, which will again be held in Banff, Alberta during the month of August, is part of the theme year. Following is a schedule of events: Workshop on the Theory of Special Functions May 6-26, 1996 Two workshops are planned for this period, one entitled Theory of Non- linear Special Functions: The Painleve Transcendents (May 13-18) and the other Algebraic Methods and q-Special Functions (May 20-26). A series of lectures on topics related to the workshops will be organized during the week of May 6-10. Organizers: L. Vinet (CRM), P. Winternitz (CRM) The list of invited lecturers includes: M. Ablowitz, G.E. Andrews, R. Askey, D. Bressoud, I. Cherednitz, P.A. Clarkson, C.M. Cosgrove, B. Dubrovin, C.F. Dunkl, P.I. Etingof, H. Flaschka, A.S. Fokas, I.B. Frenkel, B. Grammaticos, M. Ismail, A.R. Its, M. Jimbo, N. Joshi, E.G. Kalnins, A.V. Kitaev, T.H. Koornwinder, V.E. Korepin, I.M. Krichever, M.D. Kruskal, I. Macdonald, V.B. Matveev, F. Nijhoff, M. Noumi, E. Opdam, C. Rogers, F. Smirnov, D. Stanton, S. Suslov, A.P. Veselov If you wish to participate in any of the following activities, please contact Louis Pelletier for registration a month before the event for accommodation or two weeks before for attendance only. If you wish to receive any financial support (if available) please write us a letter (to be mailed to Louis Pelletier, CRM, Universite de Montreal, C.P. 6128, Succ. Centre-ville, Montreal (Quebec), Canada H3C 3J7 or e-mail to PELLETL@CRM.UMontreal.CA) that specify your research interests. Topic #6 --------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: Tom Koornwinder Subject: Celebration of Gabor Szego in Hungary Gabor Szego (in diacritical TeX notation written as G\'abor Szeg\H{o}) was born on January 20, 1895 in Kunhegyes, Hungary, so the enthusiastic citizens of this small town organized a a little celebration on January 21, 1995, which was endorsed and co-organized by the Janos Bolyai Society and the Hungarian Academy of Sciences. Paul Nevai attended the celebration and reported on it. His full account appeared in AT-NET and is obtainable from WWW: http://math.ohio-state.edu/JAT/DATA/ATNET/szego Below follows a very short extract I have made from Paul's report. (I apologize for having left out the diacritical signs.) During the morning session there were four speeches about Szego's life by the following speakers: - Barna Szenassy (read by Erzsbet Daroczy) - Dick Askey (translated into Hungarian and read by Gyuri Petruska) - Lee Lorch (idem) - Paul Nevai The talks by Askey and Lorch are included in Paul Nevai's full account. After lunch the participants went to see the Szego exhibit in the basement of the City Library. The afternoon session consisted of a few 15 minutes talks about Szego's influence on Hungarian mathematics. It was organized by Gabor Halasz. The speakers were Gabor Halasz, Gyuri Petruska, Paul Nevai, and Peter Vertesi. Topics ranged over inequalities, power series, Szego's theory, interpolation, etc. Topic #7 --------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: Notices Amer. Math. Soc., January 1995 Subject: New Memoir on Spectral Theory and Orthogonal Polynomials The following AMS Memoir appeared: A. Jirari, "Second-order Sturm-Liouville equations and orthogonal polynomials", Memoirs AMS, Vol. 113, Number 542, 1995. From the abstract: The book develops a theory for regular and singular Sturm-Liouville boundary problems for difference equations, generalizing many of the known results for differential equations. Discussing the self-adjointness of these problems as well as their abstract spectral resolution in the appropriate $L^2$ setting. the book gives necessary and sufficient conditions for a second-order difference operator to be self-adjoint and have orthogonal polynomials as eigenfunctions. Topic #8 --------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: OP-SF Net Editor Subject: Continuation of the three-volume Vilenkin-Klimyk book As a continuation of the three-volume book "Representation of Lie Groups and Special Functions" by N. Ja. Vilenkin and A.U. Klimyk (Kluwer, 1991-93), the two authors (the first of whom died) have published now a one-volume continuation which describes some new directions and results within the theme of their earlier book: N. Ja. Vilenkin and A.U. Klimyk "Representation of Lie Groups and Special Functions, Recent Advances" Kluwer Academic Publishers Dordrecht, 1995 It consists of six chapters: Chapter 1: h-Harmonic polynomials, h-Hankel transform, and Coxeter groups Chapter 2: Symmetric polynomials and symmetric functions Chapter 3: Hypergeometric functions related to Jack polynomials Chapter 4: Clebsch-Gordan coefficients and Racah coefficients of finite dimensional representations Chapter 5: Clebsch-Gordan coefficients of the group U(n) and related generalizations of hypergeometric functions Chapter 6: Gel'fand hypergeometric functions Topic #9 --------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: OP-SF Net Editor Subject: Lecture Notes on Affine Hecke algebras and Macdonald conjectures The following lecture notes are available as file hecke.tex from Waleed Al-Salam's anonymous ftp site: Alexander A. Kirillov. Jr., Lectures on the affine Hecke algebras and Macdonald conjectures, These are the notes from a series of lectures the author gave at Harvard University in the Fall of 1994. The goal of these lectures is to give a self-contained exposition of a recent result of I. Cherednik, who proved I.G. Macdonald's inner product conjectures for arbitrary root systems, using the algebraic structure he called "double affine Hecke algebra". In order to make these lectures understandable to a general mathematical audience, the author gives all necessary definitions (including that of Macdonald's polynomials, Hecke algebras, etc.) and motivations in the course. However, familiarity with (finite-dimensional and affine) root systems and Weyl groups is assumed. The author gives much credit to earlier lecture courses on the subject by Ivan Cherednik, Howard Garland and Ian Macdonald. Topic #10 -------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: Yuan Xu Subject: New book on Orthogonal Polynomials in Several Variables The following Research Note appeared: Yuan Xu "Common Zeros of Polynomials in Several Variables and Higher Dimensional Quadrature" Pitman Research Notes in Mathematics Series, 312 Essex, 1994. Abstract: This research note presents a systematic study of the common zeros of sets of polynomials in several variables which are related to higher dimensional quadrature (often called cubature). Just like the classical Gaussian quadrature formula, a cubature formula of degree 2n-1 needs at least N nodes, where N denotes the dimension of the subspace of polynomials of degree at most n-1. A cubature formula whose number of nodes is equal to N exists if, and only if, the corresponding orthogonal polynomials of degree n have N real and distinct common zeros. However, since such a cubature does not exist in general, one is led to study cubature formulae with more nodes, the most interesting cases being the ones with a minimal number of nodes. In the recent development of orthogonal polynomials in several variables, the common zeros of orthogonal polynomials are characterized as the joint eigenvalues of a family of block Jacobi matrices defined through the coefficient matrices of a three-term relation in vector-matrix form. The main results in this book show that, in general, cubature formulae are based on the real and distinct common zeros of a family of quasi-orthogonal polynomials, and the existence of these common zeros can be characterized through the solvability of certain nonlinear matrix equations derived from the modified block Jacobi matrices. The approach is parallel to that of one variable, which differs significantly from earlier ones based on the algebraic ideal theory. The book is in essence a research paper; a good portion of the theorems are new and, in many cases, new proofs are given for known results. The content is basically self-contained, including one section that summarizes the recent results on the general structure of orthogonal polynomials in several variables. Topic #11 -------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: M. Tong Subject: New Book on A Numerical Library in C The following book appeared: Author : H.T. Lau Title : A Numerical Library in C for Scientists and Engineers (ISBN 0-8493-7376-X) Publisher : CRC Press, Inc. 2000 Corporate Blvd., N.W. Boca Raton, FL 33431 USA telephone: +1-407-994 0555 This book contains an extensive coverage of computer programs in numerical computing, with several hundred procedures including areas in Linear Algebra Ordinary and Partial Differential Equations (stiff and non-stiff systems) Optimization Parameter Estimation Special Functions in mathematical physics. A diskette is included with all the source code. Topic #12 -------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: OP-SF Net Editor Subject: Electronic Guide to Available Mathematical Software The October 1994 issue of SIAM News described the Guide to Available Mathematical Software (GAMS) of the National Institute of Standards and Technology. It can be accessed by ftp, telnet, gopher or WWW: http://gams.nist.gov Three possible ways of searching for software are offered you there: - what problem it solves - package name - module name Try for instance the first possibility and search for one of the two following keywords: - orthogonal polynomials - mathematical functions Topic #13 -------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: Paul Nevai Subject: Change of Address for WWW home page of J. Approx. Theory The Journal of Approximation Theory WWW home page address (see OP-SF Net 1.9, Topic 10) has been simplified to: http://math.ohio-state.edu/JAT All back issues of OP-SF Net are also kept there. Topic #14 -------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: AT-NET Subject: New email address of AT-NET AT-NET is the electronic News Net on Approximation Theory. The email address of AT-NET recently changed into: at-net@math.technion.ac.il We include a review of a few basic options available on AT-NET: A) To submit a message to AT-NET, send it to: approx@math.technion.ac.il or at-net@math.technion.ac.il B) To get the list of subscribers to AT-NET, send an e-mail message with body: review at-net to the address: listproc@math.technion.ac.il C) You have various options on how to obtain the files of previous Bulletins. a) An index of bulletins (as of January 95) is obtainable by posting the message index at-net to listproc@math.technion.ac.il Bulletins are indexed by year and month. One can download, after one knows the correct format of the name using the command get filename addressed to the same address. b) By lynx, xmosaic, etc..... to http://gauss.technion.ac.il/lists/at-net c) By ftp to gauss.technion.ac.il anonymous login, with password your address. Do cd lists/at-net to get into the correct subdirectory, and then the usual downloading commands. d) All previous Bulletins are presently archived at the home page of JAT, http://math.ohio-state.edu/JAT D) To sign on to AT-NET, do the following from the e-mail address you wish to have all messages sent to. Send an e-mail message to: listproc@math.technion.ac.il with the body of the message consisting of the one line: sub at-net Your subscription should be automatically accepted. You will receive notice of this fact, along with additional information. If you have problems, write to Allan Pinkus at approx@math.technion.ac.il or Carl de Boor at atnet@stolp.cs.wisc.edu Topic #15 -------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: OP-SF Net Editor Subject: Phone, fax and email address changes at University of Leuven Walter Van Assche and Erik Koelink got new email addresses and phone and fax numbers: Walter Van Assche: phone: +32-16-32 70 51 fax: +32-16-32 79 98 email: Walter.VanAssche@wis.kuleuven.ac.be Erik Koelink: phone: +32-16-32 70 50 fax: +32-16 32 79 98 email: Erik.Koelink@wis.KULeuven.ac.be Their common mail address remains: Departement Wiskunde Katholieke Universiteit Leuven Celestijnenlaan 200 B B-3001 Leuven (Heverlee) Belgium Topic #16 -------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: Waleed A. Al-Salam Subject: Recent additions to ftp site on orthogonal polynomials and related special functions Waleed Al-Salam has an anonymous ftp site at euler.math.ualberta.ca on orthogonal polynomials and related special functions. It can also be accessed by using World Wide Web (xmosaic or Mosaic) at the address ftp://euler.math.ualberta.ca. Manuscripts can be obtained from directory pub and subdirectories. In particular, examine the CONTENTS file in the pub directory. If you wish to receive periodic info regarding recent additions to this database please send an email message to waleed@euler.math.ualberta.ca with your e-mail address. You are invited to submit one or more of your not-yet-in-print manuscripts which you wish to make available to the general OPS community. They should be in Plain TeX, LaTeX, AMSTeX or AMSLaTeX format. These manuscripts can be submitted by one of the following methods: a) E-mail to waleed@EULER.MATH.UALBERTA.CA b) anonymous ftp to euler.math.ualberta.ca then "cd submissions" and finally "put file" where "file" is the name of the file you wish to deposit. Between December 27, 1994 and February 7, 1995 the following additions were put in the pub directory: M. A. Pinsky and C. Prather, Pointwise convergence of n-dimensional Hermite expansions. (see /ftp/pub/pinsky.tex) A. A. Kirillov, Jr., Lectures on the affine Hecke algebras and Macdonald conjectures. (see /ftp/pub/hecke.tex) Topic #17 -------------- OP-SF NET --------------- February 9, 1995 ~~~~~~~~~ From: OP-SF Net editor Subject: Obtaining back issues and contributing to future issues of OP-SF Net and the Newsletter Back issues of OP-SF Net can be obtained from ftp: ae.siam.org, in directory pub/opsf-net . or gopher: gopher.siam.org or WWW: gopher://gopher.siam.org or WWW: http://math.ohio-state.edu/JAT Contributions to the OP-SF Net 2.2 should reach the email address poly@siam.org before March 15, 1995. Contributions to the Spring issue of the Orthogonal Polynomials and Special Functions Newsletter should reach the Editor Eugene Tomer before February 10, 1995. Items for the Newsletter without mathematical symbols can be submitted in any convenient form, for example as a textfile or as a typewritten manuscript. Items containing substantial mathematical symbols must be submitted as a standard Latex file by e-mail or by disc. There is only one exception: plain TeX files can be accepted by making special arrangements with the Editor. AmsTeX and AmsLatex files cannot be accepted. Whatever the content of your Latex article, you must use a certain preamble which can be obtained by e-mail from the Editor. Eugene Tomer Applied Mathematics & Computing 150 Hernandez Avenue San Francisco, CA 94127, USA fax +1-415-731 3551 Contributions to either the Net or to the Newsletter will be automatically considered also for inclusion in the other medium. In order to join the SIAM Activity Group on Orthogonal Polynomials and Special Functions, and thereby receive the Newsletter, you have to become a member of SIAM. Contact the email address service@siam.org. o - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - o - OP-SF Net is a forum of the SIAM Activity Group on - - Special Functions and Orthogonal Polynomials. - - We disseminate your contributions on anything of interest to the - - special functions and orthogonal polynomials community. This - - includes announcements of conferences, forthcoming books, new - - software, electronic archives, research questions, job openings. - - Submissions with sufficiently long useful life will also be - - considered automatically for our quarterly printed newsletter. - o - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - o - Send submissions to: poly@siam.org - - Send address changes to: poly-request@siam.org - - Get back issues by ftp from: ae.siam.org (directory pub/opsf-net) - - or gopher: gopher.siam.org - - or WWW: gopher://gopher.siam.org - - Information on joining SIAM - - and this activity group: service@siam.org - o - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - o - The Officers of the Activity Group are: - - - - Charles Dunkl, Chair - - George Gasper, Vice Chair - - Tom H. Koornwinder, Secretary and OP-SF Net Editor - - Martin E. Muldoon, Program Director - - Eugene Tomer, Newsletter Editor - o - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - o