o - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - o - - - December 22, 1993 - - O P - S F N E T Volume 1, 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. Introducing the first issue of OP-SF Net 2. Special functions session during AMS meeting 3. Stieltjes centennial lectures at Dutch Mathematical Congress 4. Thomas Stieltjes Conference, Delft, 1994 5. Stieltjes centennial colloquium at Toulouse 6. Activity on Representation Theory and q-Special Functions 7. Workshop about Difference Equations 8. Special session on Hypergroups at Moscow conference 9. Workshop on Transform Methods and Special Functions 10. Minisymposium "Special Functions and Asymptotics" 11. New journal "Integral Transforms and Special Functions" 12. New journal "Methods an Applications of Analysis" 13. Question about orthogonal polynomials of several variables 14. Maple packages on hypergeometric function identities 15. Anonymous ftp site on Orthogonal Polynomials etc. Topic #1 ------------- OP-SF NET --------------- December 22, 1993 ~~~~~~~~~ From: Tom H. Koornwinder Subject: Introducing the first issue of OP-SF Net The Newsletter of the SIAM Activity Group on Orthogonal Polynomials and Special Functions is mailed quarterly to members of the Group. Besides news of general interest, it contains a combination of brief announcements and short articles, and we believe it plays an important role in communicating about our field. As a complement to the Newsletter we are beginning an electronic news net, called OP-SF Net, in line with the other SIAM news nets. This net will allow rapid distribution of important news items to those members on the Internet. As with other nets, nonmembers may also receive the transmissions after filling out an informal application that will follow their request. All workers in the area of special functions and orthogonal polynomials are urged to contribute to the OP-SF Net. We seek announcements of meetings and conferences, new software relevant to our field, forthcoming books, electronic archives, interesting research questions, job openings, and so on. To start with we ask that contributions be limited to 30 lines each but this can be flexible. There will certainly be some overlap with the Newsletter and, in any case, all items in the OP-SF Net will appear in the next edition of the Newsletter (unless the activity has already taken place), while many news items appearing first in the Newsletter will also be included in the subsequent News Net transmission. One big difference between the News Net and the Newsletter will be the amount of editing of submitted material. Material for the Net should preferably reach me in a form immediately suitable for transmitting. If there is any editing, it will only be light. Occasionally, if any news reaches me in hardcopy of which I think it is suitable for dissemination, then I will include it in the Net, but some editing will be unavoidable then. In this first issue there is more material of this kind than I expect for future issues. Of course, the success of the OP-SF net will depend on your contributions. To begin with, we plan to transmit the OP-SF Net eight times a year but this is also flexible, depending on the interest and amount of material received. Tentatively, contributions to the second issue should reach the email address poly@siam.org before February 1, 1994. Topic #2 ------------- OP-SF NET --------------- December 22, 1993 ~~~~~~~~~ From: Orthogonal Polynomials and Special Functions Newsletter, Vol. 4. No. 2 Subject: Special functions session during AMS meeting A session on the topic of special functions will be held during the March 25-26, 1994 meeting of the AMS in Manhattan, Kansas. Anyone who might be interested in presenting a paper at this meeting should please contact Robert Gustafson Department of Mathematics Texas A&M University College Station, TX 77843, USA Tel: +1-409-764 8933 and +1-409-845 3950 Fax: +1-409-845 6028 email: rgustaf@math.tamu.edu Topic #3 ------------- OP-SF NET --------------- December 22, 1993 ~~~~~~~~~ From: Mededelingen Wiskundig Genootschap 36 (1993) No. 9 Subject: Stieltjes centennial lectures at Dutch Mathematical Congress The 100th anniversary of T.J. Stieltjes' premature death will be commemorated in 1994-95. A number of activities are planned in The Netherlands (Leiden and Delft), and in France (Toulouse). First of all, on April 7 and 8, 1994 the annual Congress of the Wiskundig Genootschap (Dutch Mathematical Society) will be held in Leiden, where the following lectures related to the Stieltjes centennial will be given. R. Askey (Madison): The continuing impact of the work of Stieltjes J. Cassinet (Toulouse): T.J. Stieltjes, une integration toulousaine A.J. Luxemburg (Pasadena): The impact of the notion of the Stieltjes integral on analysis Contact: dr. J.H. Evertse University of Leiden Department of Mathematics and Computer Science P.O. Box 9512 2300 RA Leiden, The Netherlands email: nmc@wi.leidenuniv.nl Topic #4 ------------- OP-SF NET --------------- December 22, 1993 ~~~~~~~~~ From: Marcel .G. de Bruin Subject: Thomas Stieltjes Conference, Delft, 1994 Orthogonality, Moment Problems and Continued Fractions an international conference in honour of Thomas Jan Stieltjes Jr. (1856-1894) October 31 - November 4, 1994 Delft University of Technology, The Netherlands First announcement and call for papers To commemorate the death of Th.J. Stieltjes Jr. in 1894, the Technical University Delft will host a conference in his honour in the fall of 1994. It is the intention to devote each day to a different aspect of the work of Stieltjes as indicated in the tentative schedule given below. To this end the local organizers will invite, advised by the International Scientific Committee, one lecturer for each of the days. Moreover there will be short lectures (30 minutes) on `the subject of the day', to be delivered in a plenary session. Because no parallel sessions will be planned, the number of short communications is restricted! To monitor the scientific level of the contributions, acceptance of papers will be decided upon by the International Scientific Committee; the decision will be made on the basis of an extended abstract (2 pages A4 at most). Publication as a special issue of a mathematical journal might be decided upon. Those interested in participating are invited to indicate this by sending an e-mail message to tjs94@twi.tudelft.nl or by sending a letter to TJS94, Mekelweg 4, kr. H4.11 Department of Pure Mathematics Delft University of Technology P.O. Box 5031 2600 GA Delft, The Netherlands A reaction is expected before January 10, 1994. Those, having indicated their interest in participation will receive a second announcement describing procedures for registration and submission of manuscripts. Tentative Schedule and Organisation Each of Monday (October 31st), Tuesday (November 1st), Thursday (November 3rd) and Friday (November 4th) will be dedicated to a different subject, with an invited lecture in the morning, followed by short communications; the subjects are (precise day not fixed yet) continued fractions, rational approximation moment problems orthogonal polynomials, asymptotics properties of zeros, Gaussian quadrature On Wednesday (November 2nd), there will be an invited lecture about the life and work of Thomas Jan Stieltjes Jr. in the morning; after lunch a sightseeing tour is planned. The selection of the invited lectures and the short communications will be supervised by the International Scientific Committee: W.J. Van Assche (Katholieke Universiteit Leuven) G. van Dijk(Rijksuniversiteit Leiden) J.-B. Hiriart-Urruty (Universit\'e Paul Sabatier, Toulouse) F. Marcellan (Unviversidad Carlos III de Madrid, Legan\'es) P. Nevai (The Ohio State University, Columbus) M.G. de Bruin (Technische Universiteit Delft) Members of the Local Organizing Committee are (in alphabetical order): H. Bavinck, M.G. de Bruin, R. Koekoek, H.G. Meijer, Mrs. C.A. Nienhuis-van Baar Topic #5 ------------- OP-SF NET --------------- December 22, 1993 ~~~~~~~~~ From: Orthogonal Polynomials and Special Functions Newsletter, Vol. 4, no.3 Subject: Stieltjes centennial colloquium at Toulouse In Toulouse there will be a Stieltjes centennial colloquium in the Spring of 1995. The focus will be on continued fractions and moment problems, orthogonal polynomials, Laplace transforms, the Riemann hypothesis, and other topics. This will have a somewhat historical character. Contact: Prof. J.-B. Hiriart-Urruty Groupe d'Histoire des Mathematiques de l'Universite Paul Sabatier 118, Route de Narbonne 31062 Toulouse, France Topic #6 ------------- OP-SF NET --------------- December 22, 1993 ~~~~~~~~~ From: Tom H. Koornwinder Subject: Activity on Representation Theory and q-Special Functions The Thomas Jan Stieltjes Research Institute is a newly-organized inter-university mathematical research center which is physically spread over the mathematics departments of the participating universities in the western part of The Netherlands. Within the framework of the Institute's program there will now be a period of concentration on representation theory and q-special functions. Thus, between April and June, 1994, a number of guests are expected, for a longer or shorter time, and regular seminars will be held. The focus will be on Heckman-Opdam hypergeometric functions associated with root systems, and interpretations of Macdonald's orthogonal $q$-polynomials on quantum groups. The activity will take place both at the Universities of Leiden and Amsterdam. The following have agreed to come for a period of two to eight weeks: Ivan V. Cherednik (Chapel Hill), Charles F. Dunkl (Charlottesville), Ian G. Macdonald (London), Masatoshi Noumi (Tokyo), Grigori I. Olshanski (Moscow). Further information can be obtained from Tom Koornwinder (thk@fwi.uva.nl) or from Eric Opdam (opdam@rulcri.leidenuniv.nl). Topic #7 ------------- OP-SF NET --------------- December 22, 1993 ~~~~~~~~~ From: Louis Pelletier Subject: Workshop about Difference Equations Workshop on Symmetries and Integrability of Difference Equations May 22-29, 1994 Esterel, Quebec, Canada Organized by the Centre de Recherches Mathematiques (CRM) Organizing Committee: L. Vinet, Chairman (Montreal), D. Levi (Rome), W. Miller (Minneapolis) F. Nijhoff (Paderborn), P. Winternitz (Montreal) The list of Speakers includes (* unconfirmed): M.J. Ablowitz, R. Askey, O. Babelon (*), A. Bobenko, C. Brezinski, H. W. Capel, V.A. Dorodnitsyn, R. Floreanini, A. Fokas, I.B. Frenkel (*), P.G.O. Freund, A. Its (*), N. Joshi, V.G. Kadyshevsky, R. Mir-Kasimov, J. Negro, R.J. Quispel, V. Papageorgiou, U. Pinkall (*), O. Ragnisco, M. Rahman, A. Ramani, N. Reshetikhin (*), P.M. Santini, J. Satsuma, A. Shabat, E. Sorace, S.K. Suslov, L. Takhtazhan, J.F. Van Diejen, A. Veselov, C. Viallet Program: The workshop will feature only invited talks. However a poster session, in which everyone is invited to participate, will be organized. The Proceedings will be published in the CRM-AMS Series. Specific topics to be discussed: - Lie symmetries and quantum symmetries of difference and differential-difference equations - Applications of difference equations in numerical studies of differential equations - Integrability of difference equations and the discrete Painleve property; singularity confinement - Applications in statistical mechanics, Yang-Baxter equations - Cellular automata - q-difference equations and q-special functions - q-difference integrable systems and other physical applications - Integrable mappings Registration: There is a registration fee of $100 CDN for regular participants (no charge for students). The deadline for receipt of application is March 15, 1994. Information and application form may be obtained from: Workshop on Symmetries and Integrability of Difference Equations CRM, Universite de Montreal C.P. 6128-A Montreal, Quebec, H3C 3J7, Canada e-mail: pelletl@ere.umontreal.ca Fax: +1-514-343 2254 Tel: +1-514-343 2197 Topic #8 ------------- OP-SF NET --------------- December 22, 1993 ~~~~~~~~~ From: G.L. Litvinov Subject: Special session on Hypergroups at Moscow conference The International Sophus Lie Centre announces a Workshop-Conference on CLASSICAL AND QUANTUM GEOMETRY OF HOMOGENEOUS SPACES which will be held in Moscow (or its nearest environs) on August 12-20, 1994 (immediately after the ICM in Zurich). This Workshop-Conference will be devoted to the following topics: Lie groups and homogeneous spaces Lie superalgebras and homogeneous supermanifolds Quantum groups and homogeneous spaces Hypergroups Symmetries of differential equations Representations. The working language will be English. The Programme Committee will include the following mathematicians: Wu-Yi Hsiang, R.Ismagilov, B.Komrakov, G.Litvinov, V.Lychagin, A.Onishchik, Yu.Soloviev, A.Sossinsky, E.Vinberg, D.Zhelobenko. The workshop aspect of the meeting will include plenary lectures (accessible to graduate students); the conference aspect will consist of more specialized seminars, where experts will report on current results. In order to receive the first announcement (in January 1994), please send your name, academic position and/or title, affiliation, mailing address, e-mail, and the topic of your talk (if you plan to make one) to the following address: B.Komrakov Centre for Advanced Study P.O.Box 7606 Skillebekk 0205 Oslo, Norway e-mail: islc@shs.no fax: +47-2-243 6120 Topic #9 ------------- OP-SF NET --------------- December 22, 1993 ~~~~~~~~~ From: V. Kiryakova Subject: Workshop on Transform Methods and Special Functions Workshop on Transform Methods and Special Functions Sofia, Bulgaria, 12-17 August, 1994 (Preliminary announcement) The main subjects of the Workshop are intended to be: Integral Transforms Special Functions Series Expansions Fractional Calculus and its Generalizations Algebraical Analysis Operational Calculus Applications to Complex Analysis Differential and Integral Equations Organizing Committee: P. Rusev, I. Dimovski and S.L. Kalla (chairmen) V. Kiryakova and L. Boyadjiev (secretaries) Contact: Assoc. Prof. V. Kiryakova Institute of Mathematics Bulgarian Academy of Sciences P.O. Box 373 Sofia 1090, Bulgaria fax: +359-2-752 078 email: virginia@bgearn.bitnet Topic #10 ------------ OP-SF NET --------------- December 22, 1993 ~~~~~~~~~ From: SIAM Subject: Minisymposium "Special Functions and Asymptotics" The 1994 SIAM Annual Meeting will be held in San Diego, California, USA during July 25-29, 1994. The list of minisymposia includes a session on "Special Functions and Asymptotics", organized by Charles F. Dunkl and Martin Muldoon. It is co-sponsored by SIAM Activity Group on Orthogonal Polynomials and Special Functions. Contact: SIAM, 3600 University City Center, Philadelphia, PA 19104-9489, USA for obtaining advance registration form. Topic #11 ------------ OP-SF NET --------------- December 22, 1993 ~~~~~~~~~ From: Tom H. Koornwinder Subject: New journal "Integral Transforms and Special Functions" A new journal "Integral transforms and special functions" has appeared first in 1993. Aims and scope: Integral transformations and special functions belong to the basic subjects of mathematical analysis, the theory of differential and integral equations, approximation theory, and to many other areas of pure and applied mathematics. Although centuries old these subjects are under intensive development, being necessary in various problems of modern mathematics and other disciplines. This stimulates continuous interest for researchers in these fields. The aim of "Integral transforms and Special Functions" is to foster further growth by providing a journal for publication of important research on all aspects of the subjects. Editor in Chief is: A.P. Prudnikov Computer Centre Russian Academy of Sciences ul. Vavilova, 40 Moscow 11967, V-333, Russia email: aprudn@sms.ccas.msk.su fax: +7-95-135 5498 or +7-95-135 6159 Associate editors are: Yu. Brychkov C.F. Dunkl Computer Centre Dept. of Math Russian Academy of Sciences University of Virginia ul. Vavilova, 40 Charlottesville, VA 22903, USA Moscow 11967, V-333, Russia email: cfd5z@virginia.edu fax: +7-95-135 5498 fax: +1-804-982 3084 or +7-95-135 6159 H.-J. Glaeske M. Saigo Friedrich-Schiller Universitaet Dept. of Applied Math. Sektion Mathematik Fukuoka University Universitaetshochhaus, 17.O.G. Fukuoka 814-01, Japan O-6900 Jena, Germany fax: +92-82-12 514 fax: +49-3641-822 2345 The editorial board consists of: P. Antosik (Poland) M. Mikol\'as (Hungary) V.M. Babich (Russia) E.I. Moisseev (Russia) C. Brezinski (France) A.F. Nikiforov (Russia) I.H. Dimovski (Bulgaria) N. Ortner (Austria) L. Gatteschi (Italy) A. Rahman (Canada) J. Gilevicz (France) B. Ross (USA) S.L. Kalla (Venezuela) S.G. Samko (Russia) A.U. Klimyk (Ukraine) M. Sanz (Spain) T.H. Koornwinder (Netherlands) H.M. Srivastava (Canada) G. Krabbe (USA) P.K. Suetin (Russia) A.C. McBride (United Kingdom) O.V. Viskov (Russia) G. Martinez (Spain) A.H. Zemanian (USA) I. Marek (Czechoslovakia) Ordering information: Gordon aand Breach Science Publishers P.O. Box 786, Cooper Station New York, NY 10276, USA fax: +1-212-645 2459 Manuscripts: Submit in triplicate to the Editor in Chief or the appropriate Associate Editor. Submission in Latex is also possible. Please contact the journal editors for the style file. Topic #12 ------------ OP-SF NET --------------- December 22, 1993 ~~~~~~~~~ From: Nico M. Temme Subject: New journal "Methods and Applications of Analysis" The first issue of the journal "Methods and Applications of Analysis" will appear in January 1994. Aims and scope: "Methods and Applications of Analysis" will publish high quality mathematical papers treating that part of analysis which has direct or potential applications to the biological and physical sciences and engineering. Topics from analysis include approximation theory, asymptotic analysis, calculus of variations, integral equations, integral transforms, ordinary and partial differential equations, perturbation methods, and special functions. The primary aim of the journal is to encourage the development of new techniques and results in applied analysis. Papers which simply apply existing methods to the natural sciences and engineering or merely generalize classical results for the purpose of abstraction are outside the scope of this journal. Also papers primarily in the computing sciences will not be considered. All papers will be in English. Editors-in-Chief are: Robert M. Miura Department of Mathematics University of British Columbia Vancouver, B.C. Canada V6T 1Z2 E-mail: miura@neuron.math.ubc.ca Fax: +1-604-822 6074 Roderick S.C. Wong Editorial Office for METHODS AND APPLICATIONS OF ANALYSIS Department of Mathematics City Polytechnic of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong E-mail: mawong@cphkvx.cphk.hk Fax: +852-788 8561 The Editorial Board consists of: Richard A. Askey (University of Wisconsin) Wolfgang Buhring (University of Heidelberg) James A. Cochran (Washington State University) Mourad E.H. Ismail (University of South Florida) Christopher K.R.T. Jones (Brown University) Douglas S. Jones (University of Dundee) J. Bryce McLeod (University of Pittsburgh) Masayasu Mimura (University of Tokyo) Frank W.J. Olver (University of Maryland) Robert E. O'Malley, Jr. (University of Washington) Rodolfo R. Rosales (Massachusetts Institute of Technology) Donald R. Smith (University of California at San Diego) Nico M. Temme (Centrum voor Wiskunde en Informatica) James S.W. Wong (Chinney Investments Ltd.) Ordering information: International Press P.O. Box 2872 Cambridge, MA 02238-2872 Fax: 617-491-0329 Manuscripts: Submit in quadruplicate to Roderick Wong. The use of TeX is encouraged, and the TeX file should be submitted upon acceptance of the manuscript. Topic #13 ------------ OP-SF NET --------------- December 22, 1993 ~~~~~~~~~ From: Orthogonal Polynomials and Special Functions Newsletter, Vol. 4, No. 3 Subject: Question about orthogonal polynomials of several variables Nov. 3, 1993 Dear Editor, I am a mathematician, and a lecturer, at the University of Oradea, Romania. I am interested in orthogonal polynomials of two, or of many, variables, and I am also interested in orthogonal polynomials associated with singular integrals, for example singular integrals of the Poisson type. I would greatly appreciate receiving reprints of papers on these subjects from the members. Thank you very much. Yours sincerely, Dr. Sorin Gh. Gal Department of Mathematics University of Oradea Str. Armatei Rom\^ane 5 3700 Oradea, Romania Tel: +40-991-45 831 Fax: +40-991-56 313 Topic #14 ------------ OP-SF NET --------------- December 22, 1993 ~~~~~~~~~ From: Orthogonal Polynomials and Special Functions Newsletter, Vol. 4, No. 2,3 Subject: Maple packages on hypergeometric function identities There is a Maple package by Doron Zeilberger dealing with hypergeometric function identities and related problems. It is available by anonymuus ftp from the site math.temple.edu in the directory pub/zeilberger/programs . An alternative implementation has been produced by Tom Koornwinder, using Zeilberger's original algrorithm on hypergeometric and q-hypergeometric identities. It may be interesting to compare Doron's program with Tom's alternative in practical calculations. Tom's code is available by anonymous ftp from the site euler.math.ualberta.ca in the directory pub/koornwinder (files zeilb and qzeilb , with the help files help.zeilb and help_qzeilb ). It runs under Maple V. Release 2. Topic #12 ------------ OP-SF NET --------------- December 22, 1993 ~~~~~~~~~ From: Waleed A. Al-Salam Subject: Anonymous ftp site on Orthogonal Polynomials etc. Waleed Al-Salam has an anonymous ftp site at EULER.MATH.UALBERTA.CA on orthogonal polynomials and related special functions. 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. 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 - - 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 - - Martin E. Muldoon, Program Director - - Eugene Tomer, Newsletter Editor - o - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - o