FW: OP-SF Net Volume 7 Number 5





-----Original Message-----
From: mailer@siam.org [mailto:mailer@siam.org]
Sent: Tuesday, September 19, 2000 10:51 AM
Subject: OP-SF Net Volume 7 Number 5






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                                            September 15, 2000        
                                                                      
       O P - S F   N E T                    Volume 7, Number 5        
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~        
       Editor:                                                        
       Martin Muldoon                       muldoon@yorku.ca          
                                                                      
       The Electronic News Net of the SIAM Activity Group             
       on Orthogonal Polynomials and Special Functions                
                                                                      
               Please send contributions to:     poly@siam.org        
               Subscribe by mailing to:  poly-request@siam.org        
                                 or to:  listproc@nist.gov            
                                                                      
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Today's Topics:
     1.  Letter from the Chair
     2.  Cambridge Program on Symmetric functions and Macdonald
           polynomials
     3.  Hong Kong Summer School in Applied Analysis 
     4.  New book on Special Functions (Lay/Slavyanov)
     5.  Postdoctoral Research Opportunity at NIST
     6.  Job opening for graduate student (Delft)
     7.  Jurgen Moser Lecture
     8.  J. D. Crawford Prize
     9.  SIAM Student Paper Prizes
    10.  OP-SF preprints in xxx archive
    11.  Changes of address, WWW pages, etc.
    12.  About the Activity Group
    13.  Submitting contributions to OP-SF NET and Newsletter


Calendar of Events:

2000

September 22-28: International Conference on Functional Analysis 
                  and Approximation Theory, Acquafredda di 
                  Maratea, Italy                                   7.2 #6
October 26-28: q-Series with Applications to Combinatorics, 
                  Number Theory and Physics, University of 
                  Illinois, USA                                    7.4 #2
November 27 - December 1: 4th International Interdisciplinary
               meeting on "Symmetries and Integrability of 
               Difference Equations", Tokyo, Japan.                7.4 #3

2001
January 8-12: Workshop "Conjectures, Recent Results and Open 
      Problems Related to the Macdonald Polynomials", Newton 
      Institute, Cambridge, UK                                     7.5 #2
January 9-14:  Workshop on Quasiclassical and Quantum Structures,
               Fields Institute, Toronto, Canada                   7.4 #4
April 17-20: Workshop "Applications of the Macdonald Polynomials", 
            Newton Institute, Cambridge, UK                        7.5 #2
June 18-22: Symposium on Orthogonal Polynomials, Special Functions and
               Applications, Rome, Italy                           7.3 #2
June 25 - July 6: Workshop "The Macdonald Polynomials", 
            Newton Institute, Cambridge, UK                        7.5 #2
July 2-12: Summer School on Applied Analysis, Hong Kong            7.5 #3
July 9-13: SIAM Annual Meeting, San Diego, California, USA
             See: http://www.siam.org/meetings/an01/
August 6-10: Analytic theory of continued fractions, orthogonal 
               functions and related topics, Grand Junction, 
               Colorado, USA                                       7.4 #5
August 20-24: 3rd International meeting on Approximation
                 Theory, Dortmund, Germany                         7.4 #6
October 1-5: "Numerical Algorithms", Conference in Honor of Claude
                  Brezinski, Marrakesh, Morocco                    7.3 #3

Future plans:

* As already mentioned in OP-SF NET 6.5, the next meeting in the series
Fields-Toronto (1995)  - CRM-Montreal (1996) - Mount Holyoke (1998) - Hong
Kong (1999)  - Arizona (2000) is expected to be held in Amsterdam, in
2002, probably in early summer, to be organized by Tom Koornwinder
(thk@uwa.wins.nl), Nico Temme (nico@cwi.nl)  and Erik Koelink
(koelink@twi.tudelft.nl).

* There are plans to organize summer schools on "Orthogonal Polynomials and
Special Functions" in Europe during the coming three years:

   -  2001 (probably September): in Germany (contact person: Rupert Lasser 
       <lasser@gsf.de>) 

   -  2002 (the week before the Special Functions meeting in Amsterdam): in the
      Netherlands or Belgium (contact person: Erik Koelink 
      <koelink@twi.tudelft.nl>). 

   -  2003 (time undecided): in Portugal (contact person: Amilcar 
      Branquinho). 

Coordinator of the three summer schools is Erik Koelink
(koelink@twi.tudelft.nl). These summer schools are part of our Activity
Group's scientific program. The scientific committee consists of Erik
Koelink, Rupert Lasser, Amilcar Branquinho, Paco Marcellan and Walter Van
Assche.

* There is a plan for an IMA 2002 Summer Program "Special Functions in the
Digital Age" to be held in Minneapolis, USA, July 22 - August 2, 2002.  


Topic #1  ------------   OP-SF NET 7.5  -------------  September 15, 2000
                         ~~~~~~~~~~~~~
From: Daniel Lozier <dlozier@nist.gov>
Subject: Letter from the Chair

In this letter to the OPSF membership I want to report on some recent
developments at SIAM that affect all the SIAGs (SIAM Activity Groups) and
ours in particular.  Then I will give a brief report on the SIAM Annual
Meeting, which was held in San Juan, Puerto Rico.  Finally I will raise
some issues faced by our Activity Group and ask for ideas for addressing
them.

To begin, this was the year for our charter to be considered for renewal
by the SIAM Council and the SIAM Board of Trustees.  Activity group
charter renewal is required every three years.  I submitted the
application, which was considered and approved at the Annual Meeting.  
Thus we are in business until the end of 2004.  Officers who will lead our
group starting on January 1, 2002, will be elected by the membership next
year.  It is not too soon to begin thinking about candidates, and to think
about being a candidate yourself.

Jim Crowley, Executive Director of SIAM, sent an email to all SIAG
officers reporting two actions taken by SIAM at the Annual Meeting that
affect the SIAGS.  The first action is a request that all SIAGs organize
at least two minisymposia at each Annual Meeting.  This reaffirms previous
requests and reflects the importance SIAM places on the activities of the
SIAGs.  There is a desire, in Jim's words, "to see the SIAGs participate
fully as part of SIAM and not become entirely separate entities."  The
second action is new.  It requests a meeting of the chairs of all the
SIAGs at each Annual Meeting to discuss issues facing the SIAGs and to
seek ways of vitalizing each SIAG.  Jim will conduct the first SIAG Chairs
Meeting at the 2001 SIAM Annual Meeting in San Diego. I expect to attend
and represent our membership at this meeting.

Jim's email covered other issues of interest to SIAG officers and
potential officers.  New or revised documents for SIAG officers are being
prepared, including SIAG Rules of Procedure, SIAG Guidelines, Guidelines
for Organizing a SIAG Conference, and the charter renewal template.  
Finally Jim's email commented that every SIAG should maintain a set of Web
pages.  Any member who is interested in more information about these
topics should contact me.

Our group had a minisymposium at the San Juan meeting but, unfortunately,
it was not well attended.  Of course there were many competing parallel
sessions.  But one of our four talks was cancelled due to a last-minute
problem that prevented the speaker from traveling to San Juan, and another
attracted no audience at all!  One reason for the poor attendance might be
that our talks didn't adhere to a coherent theme.  It didn't help that
among the plenary talks only one, the Polya Prize Lecture on Polynomials
in Discrete Mathematics, had anything to do with our subject.  Finally,
the 3rd European Congress of Mathematics took place in Barcelona the same
week as the SIAM Annual Meeting.  Though it was a general mathematics
meeting, a satellite Summer School on Orthogonal Polynomials and Special
Functions was held shortly afterward.  This summer school was an official
activity of our group, organized by our program director, Paco Marcellan,
and one of our newsletter editors, Renato Alvarez-Nodarse.  I believe the
European meeting and summer school drew heavily from the attendance we
would have expected in San Juan.

This leads me to the major issue I see facing our group.  We are part of
SIAM, and SIAM rightly expects us to participate in SIAM meetings, to
organize parts of these meetings, and even to consider mounting our own
SIAG conference.  In my view our group has met these expectations quite
well, except for conducting our own conference, which we have never done.
There are two general problems that prevent us from having a stronger
relationship with SIAM.  First, SIAM's commitment to special functions is
not as strong as it should be.  One indication of this is the lack of
plenary speakers who work in special functions or who use them in other
areas.  I discussed this problem with several people in San Juan, and came
away with the feeling that we could do more to influence the program of
future SIAM meetings by communicating directly with the program
committees.  Another problem is the drift away from classical analysis on
the editorial board of the SIAM Journal on Mathematical Analysis.  This
was addressed in the "Statement by the Officers of SIAM SIAG-OPSF on the
Scope of SIMA" in Topic #7, OPSF-NET 7.3, May 15, 2000, and in the printed
OPSF Newsletter, vol. 10, no. 3, June 2000, p. 22.  I am not aware of any
progress on this problem.  Second, there are many meetings that focus
sharply on special functions.  Are there too many?  I invite the
membership to think about our relationship with SIAM and how it could be
strengthened. Our email list service, OPSF-Talk, is ideal for this
purpose.  It distributes email sent to opsftalk@nist.gov to the subscriber
list, and it keeps an archive of the email. See
http://math.nist.gov/opsf/opsftalk.html 
for further information about this service.  Of course I will also be
happy to receive comments by email, telephone or letter.



Topic #2  ------------   OP-SF NET 7.5  -------------  September 15, 2000
                         ~~~~~~~~~~~~~
From: OP-SF NET Editor <muldoon@yorku.ca>
Subject: Program on Symmetric functions and Macdonald polynomials 

[From the website: http://www.newton.cam.ac.uk/programs/sfm.html]

The Isaac Newton Institute for Mathematical Sciences, Cambridge, UK will
host a program "Symmetric functions and Macdonald polynomials" during
January-June 2001. The organisers are P. Hanlon (Michigan), I.G. Macdonald
(London) and A.O. Morris (Aberystwyth).

Programme Theme:
The importance of symmetric functions and the representation theory of Hecke
algebras and the symmetric groups derives in part from their applicability in a
wide range of scientific and mathematical disciplines.  Within the theory of
symmetric functions, this programme will focus on a particular topic, the
Macdonald polynomials, which have especially wide-ranging mathematical
interconnections.  The goal of the program will be to unify the diverse
approaches to the study of these polynomials.
   In the 1980's, I. G. Macdonald formulated a series of conjectures which
predicted the constant terms of expressions that involve an important new class
of symmetric functions called the Macdonald polynomials.  Since their
introduction, these conjectures and polynomials have been a central topic of
study in Algebraic Combinatorics.  Of particular note has been the variety of
approaches used in efforts to solve the conjectures or to find an algebraic or
geometric interpretation for the Macdonald polynomials themselves.  Different
approaches involve double affine Hecke algebras, homology of nilpotent Lie
algebras, generalized traces of Lie algebra representations and diagonal actions
of the symmetric group on polynomial rings in two sets of variables.  In this
programme we will attempt to unify these different approaches to the Macdonald
Conjectures in a way that allows for a significant interpretation of the
Macdonald polynomials and settles some of the outstanding conjectures that have
resulted from this work.
   Links with other areas such as algebraic geometry, Lie algebras,
non-commutative algebra, mathematical physics and mathematical statistics
will be emphasised. Workshops will be arranged in order to foster existing
and potential applications in these and other subjects.

Workshops: 
- 8-12 January 2001: Conjectures, Recent Results and Open Problems Related to
    the Macdonald Polynomials 
- 17-20 April 2001: Applications of the Macdonald Polynomials 
- 25 June - 6 July 2001: The Macdonald Polynomials 

A list if visitors and visiting dates is maintained at the web site:
http://www.newton.cam.ac.uk/programs/sfm.html

Contacts:
A. O. Morris <aom@aber.ac.uk>
P. Hanlon <hanlon@math.lsa.umich.edu>



Topic #3  ------------   OP-SF NET 7.5  -------------  September 15, 2000
                         ~~~~~~~~~~~~~
From: Mourad Ismail <ismail@math.cityu.edu.hk>
Subject: Hong Kong Summer School in Applied Analysis

Summer School in Applied Analysis

Dates: July 2nd- July 13, 2001
Place: City University of Hong Kong
Organizing Committee: Joaquin Bustoz, Mourad Ismail, Rupert Lasser, Jurgen 
Prestin, Rod Wong. 
Conference Secretary: Colette Lam.
Contact Information: malam@cityu.edu.hk 

Lecturers (Confirmed): A. Grunbaum (Berkeley) M. E. H. Ismail (U South Florida 
and City U), A. Its (IUPUI and U Penn), R. Lasser (Munich), B. Simon (Caltech), 
W. Van Assche (Leuven), and  Rod Wong (City U).

In addition to the above structered courses we intend to have several one hour 
talks on more advanced topics. This will be done in the later part of the 
program. 



Topic #4  ------------   OP-SF NET 7.5  -------------  September 15, 2000
                         ~~~~~~~~~~~~~
From: OP-SF NET Editor <muldoon@yorku.ca>
Subject: New book on Special Functions

The following information is from the web site: 
http://www.oup-usa.org/isbn/0198505736.html

Special Functions -  A Unified Theory Based on Singularities
Wolfgang Lay (Stuttgart) and  Sergei Yuryevitsh Slavyanov (St. Petersburg)
Oxford University Press,
320 pp.; 50 line illus; 0-19-850573-6, November 2000

The subject of this book is the theory of special functions, not
considered as a list of functions exhibiting a certain range of
properties, but based on the unified study of singularities of
second-order ordinary differential equations in the complex domain. The
number and characteristics of the singularities serve as a basis for
classification of each individual special function. Links between linear
special functions (as solutions of linear second-order equations), and
non-linear special functions (as solutions of Painleve equations) are
presented as a basic and new result. Many applications to different areas
of physics are shown and discussed. The book is written from a practical
point of view and will address all those scientists whose work involves
applications of mathematical methods. Lecturers, graduate students and
researchers will find this a useful text and reference work.

CONTENTS
 Preface
 1. Linear Second-order ODE with Polynomial Coefficients
 2. The Hypergeometric Class of Equations
 3. The Heun Class of Equations
 4. Application to Physical Sciences
 5. The Painleve Class of Equations
 A. Gamma-Function and Related Functions
 B. CTCPs for Heun Equations in General Form
 C. Multipole Matrix Elements
 D. SFTools - Database of the Special Functions



Topic #5  ------------   OP-SF NET 7.5  -------------  September 15, 2000
                         ~~~~~~~~~~~~~
From: Daniel Lozier <dlozier@nist.gov>
Subject: Postdoctoral Research Opportunity at NIST

This research opportunity focuses on improving numerical and symbolic
computing support for the classical special functions in parallel and
other advanced computational settings through the development of
algorithms and mathematical software.

Emphasis in algorithm development is placed on functions of one or more
complex variables. For example, a recurrence relation or differential
equation can sometimes be solved in parallel to form a stable and
effective algorithm in the complex domain. This approach has been applied
successfully to Airy, Bessel, and other functions. The emphasis in
software development is placed on the construction of robust and highly
reliable packages and test procedures. An important component is the use
of the Internet to provide an interactive capability in the dissemination
of mathematical reference data for special functions. The further
development of these topics will require skills in real and complex
analysis, numerical analysis, classical special functions, approximation
theory, and advanced computing. For further information, contact:

  Dr. Daniel W. Lozier
  National Institute of Standards and Technology
  100 Bureau Drive
  Gaithersburg, MD 20899-8910
  E-mail: dlozier@nist.gov, telephone: (301) 975-2706

The postdoctoral research program at NIST is administered by the National
Research Council, Washington, DC.  Only US citizens are eligible.  The
duration is two years.  The application deadline is January 15, 2001.  
Further details on requirements and application procedure can be found at
http://www4.nas.edu/osep/rap.nsf/WebDocuments/Home+Page.



Topic #6  ------------   OP-SF NET 7.5  -------------  September 15, 2000
                         ~~~~~~~~~~~~~
From: Erik Koelink <koelink@twi.tudelft.nl>
Subject: Job opening for graduate student 

4-year graduate student position "Special Functions and Dynamical Quantum
Groups"

This concerns a NWO (Netherlands Organization for Scientific
Research)-funded project to be carried out at the Technische Universiteit
Delft, the Netherlands. The research group consists of Erik Koelink
(Delft, the Netherlands), Hjalmar Rosengren (Gothenburg, Sweden), Ole
Warnaar (Melbourne, Australia), and as external advisors Tom Koornwinder
(Amsterdam, the Netherlands) and Don Zagier (Utrecht, the Netherlands).

A short description of the research proposal is the following:
  The purpose of this proposal is to investigate the relationship between
the representation theory of dynamical quantum groups and the theory of
special functions.  Dynamical quantum groups are related to solutions of
the dynamical Yang-Baxter equation and we focus our attention to the
so-called trigonometric and elliptic solutions. We will study
representations and co-representations and we intend to establish a
fruitful link with classes of special functions, leading to new insights
on both sides.  In the trigonometric case we expect special functions of
basic hypergeometric type, and in the elliptic case we expect special
functions of elliptic hypergeometric type.

Candidates should have a degree in mathematics or physics, or obtain one in the
near future. Please send an application (CV, list of publications if any, and
names of referents) to

Erik Koelink
Technische Universiteit Delft,
Fac. ITS, Afd. TWA,
PO Box 5031, 2600 GA Delft, the Netherlands
email: koelink@twi.tudelft.nl
URL: http://aw.twi.tudelft.nl/~koelink/
tel: + 31 15 278 6599 (office) + 31 15 278 7245 (fax) 
     + 31 15 278 7221 (secretary)

For more information (salary, extended research description, teaching load, etc)
see http://aw.twi.tudelft.nl/~koelink/oio.html or contact Erik Koelink.



Topic #7   ------------   OP-SF NET 7.5  -------------  September 15, 2000
                          ~~~~~~~~~~~~~
From: Allison Bogardo <bogardo@siam.org>
Subject: Jurgen Moser Lecture
     
                              Call for Nominations
     SIAM Activity Group on Dynamical Systems (SIAG/DS) Jurgen Moser Lecture
     
     The SIAG/DS Moser Lecture
     -------------------------
     The SIAM Activity Group on Dynamical Systems will present the award at 
     its Sixth Conference on Applications of Dynamical Systems at Snowbird,  
     May 20-24, 2001.  The prize, the first to be given, is awarded to a 
     person who has made distinguished contributions to dynamical systems 
     and nonlinear science. 
     
     Nominations
     -----------
     Nominations should be sent by e-mail, fax, or regular mail BY OCTOBER 2, 
     2000 to:
                Professor John Guckenheimer, Chair
                Selection Committee
                SIAG/DS Jurgen Moser Lecture
                c/o Allison Bogardo
                SIAM
                3600 University City Science Center
                Philadelphia, PA 19104-2688
                Telephone: 215-382-9800
                Fax: 215-386-7999
                E-mail: bogardo@siam.org
     
     Selection Committee
     -------------------
     Members of the selection committee are: Predrag Cvitanovic, Northwestern 
     University; John Guckenheimer (Chair), Cornell University; Nancy Kopell, 
     Boston University; Peter Lax, Courant Institute of Mathematical Sciences, 
     New York University; Eduard Zehnder, ETH-Zurich.

     

Topic #8   ------------   OP-SF NET 7.5  -------------  September 15, 2000
                          ~~~~~~~~~~~~~
From: Allison Bogardo <bogardo@siam.org>
Subject: J. D. Crawford Prize

                              Call for Nominations
     
     SIAM Activity Group on Dynamical Systems (SIAG/DS) J.D. Crawford Prize
     
     The SIAG/DS J.D. Crawford Prize
     -------------------------------
     The SIAM Activity Group on Dynamical Systems will present the award at 
     its Sixth Conference on Applications of Dynamical Systems at Snowbird  
     May 20-24, 2001.  The prize, the first to be given, is awarded for 
     recent outstanding work on a topic in dynamical systems and nonlinear 
     science, as evidenced by a publications in English in a peer-reviewed 
     journal within the four calendar years preceding the award date.  
     
     Nominations
     -----------
     Nominations should be sent by e-mail, fax, or regular mail BY
     OCTOBER 16, 2000 to:
                Professor Christopher Jones, Chair
                Selection Committee
                SIAG/DS J.D. Crawford Prize
                c/o Allison Bogardo
                SIAM
                3600 University City Science Center
                Philadelphia, PA 19104-2688
                Telephone: 215-382-9800
                Fax: 215-386-7999
                E-mail: bogardo@siam.org
     
     Eligibility
     -----------
     The research of the candidate must contain significant contributions 
     to the field of nonlinear science, as evidenced by papers published in 
     English in a peer-reviewed journal bearing a publication date within 
     the award period.
     
     Selection Committee
     -------------------
     Members of the selection committee are: Christopher Jones (Chair), Brown 
     University; James Keener, University of Utah; Edgar Knobloch, University 
     of California, Berkeley; Robert MacKay, University of Warwick, UK; Harry 
     Swinney, University of Texas at Austin.
     
     Additional Information
     ----------------------
     Additional information is available at http://math.gmu.edu/html/ds/
     


Topic #9   ------------   OP-SF NET 7.5  -------------  September 15, 2000
                          ~~~~~~~~~~~~~
From: Allison Bogardo <bogardo@siam.org>
Subject: SIAM Student Paper Prizes
 
                      SIAM Student Paper Prizes
     
     
     The annual SIAM Student Paper Prizes will be awarded during the 2001 
     SIAM Annual Meeting, July 9-13, at the Town & Country Hotel in San 
     Diego, California.
     
     If you are a student or know of a student who would like to take part 
     in the competition, here are the details:
     
     The authors of the three best papers in applied and computational 
     mathematics written by students and submitted to SIAM will receive a 
     $1,000 cash prize and a framed calligraphed certificate as well as 
     gratis registration for the meeting.  There is no provision for
     travel expenses associated with the prize.
     
     Papers must be singly authored and not previously published or 
     submitted for publication to be eligible for consideration.  To 
     qualify, authors must be students in good standing who have not 
     received their PhDs at the time of submission.
     
     In submitting their work for publication, authors are asked to 
     consider SIAM journals.  However, student paper prize winners are not 
     guaranteed publication in any SIAM journal; all papers submitted to 
     SIAM journals are subject to the same refereeing process and 
     standards.

     Submissions to the student paper competition must be received in
     the SIAM office before February 16, 2001.
     
     Submissions, which must be in English, can be sent by regular mail or 
     fax.  Each submission must include (1) an extended abstract NOT
     LONGER THAN 5 PAGES (including bibliography); (2) the complete
     paper, which will be used solely for clarification of any questions; (3) a
     statement by the student's faculty advisor that the paper has been
     prepared by the author indicated and that the author is a student in good 
     standing; (4) a letter by the student's faculty advisor describing
     and  evaluating the paper's contribution; and (5) a short biography
     of the student.
     
     Submissions will be judged on originality, significance, and quality 
     of exposition.
     
     The winners will be notified by April 25, 2001.
     
     Please direct your submission and any questions you may have to
     A. Bogardo at SIAM, 3600 University City Science Center, 
     Philadelphia, PA 19104-2688; telephone (215) 382-9800; e-mail to 
     bogardo@siam.org.



Topic #10   ------------   OP-SF NET 7.5  -------------  September 15, 2000
                           ~~~~~~~~~~~~~
From: OP-SF NET Editor <muldoon@yorku.ca>
Subject: OP-SF preprints in xxx archive

The following preprints related to the field of orthogonal polynomials and
special functions were recently posted or cross-listed to one of the
subcategories of the xxx archives. See:
 http://front.math.ucdavis.edu/math.CA
 http://front.math.ucdavis.edu/math.CO
 http://front.math.ucdavis.edu/math.QA
 http://xxx.lanl.gov/archive/solv-int

math.CO/0007001 
Title: A double bounded key identity for Goellnitz's (big)
partition theorem 
Authors: K. Alladi, A. Berkovich 
From: Alexander Berkovich <alexb@math.ufl.edu> 

math.CA/0007046 
Title: A simple proof of Bailey's very-well-poised 6-psi-6 summation 
Author: M. Schlosser (The Ohio State University) 
From: Michael Schlosser <mschloss@math.ohio-state.edu> 

math.QA/0007086 
From: Tom H. Koornwinder <thk@wins.uva.nl>
QDYBE: some explicit formulas for exchange matrix and related objects in case of
sl(2), q=1
Authors: Tom H. Koornwinder, Nabila Touhami

math-ph/0007017 
Title: Witten deformed exterior derivative and Bessel functions 
Author: M. Mekhfi 
From: Mustapha MEKHFI <mekhfi@elbahia.cerist.dz> 

math-ph/0007041 
Title: Mapping Integer Order Neumann Functions To Real Orders 
Author: M. Mekhfi 
From: Mustapha MEKHFI <mekhfi@elbahia.cerist.dz> 

math.CO/0008180 
Title: A continued fraction expansion for a q-tangent function 
Author: Markus Fulmek 
From: Markus Fulmek <markus.fulmek@univie.ac.at> 

math.NT/0008068 
Title: Infinite families of exact sums of squares formulas, Jacobi elliptic
functions, continued fractions, and Schur functions 
Author: Stephen C. Milne 
From: Stephen C. Milne <milne@math.ohio-state.edu> 

math.NT/0008017 
Title: Cancellation of factorials 
Author: Wadim Zudilin 
From: Wadim Zudilin <wadim@ips.ras.ru> 

math.QA/0008199 
Title: Polynomiality of the q,t-Kostka Revisited 
Authors: A. M. Garsia, Mike Zabrocki 
From: Mike Zabrocki <zabrocki@math.uqam.ca> 

math.QA/0008188 
Title: q-Analogs of symmetric function operators 
Author: Mike Zabrocki 
From: Mike Zabrocki <zabrocki@math.uqam.ca> 

math.QA/0008163 
Title: Ribbon Operators and Hall-Littlewood Symmetric Functions 
Author: Mike Zabrocki 
From: Mike Zabrocki <zabrocki@math.uqam.ca> 

math.QA/0008094 
Title: Combinatorial formula for Macdonald polynomials, Bethe Ansatz,
and generic Macdonald polynomials 
Author: Andrei Okounkov 
From: Andrei Okounkov <okounkov@math.uchicago.edu> 

math.QA/0008073 
Title: A filtration of the symmetric function space and a refinement of the
Macdonald positivity conjecture 
Authors: L. Lapointe, A. Lascoux, J. Morse 
From: Luc Lapointe <lapointe@crm.umontreal.ca> 

math.QA/0007079 
Title: Some details of proofs of theorems related to the quantum
dynamical Yang-Baxter equation 
Author: Tom H. Koornwinder 
From: Tom H. Koornwinder <thk@wins.uva.nl> 

math.QA/0008196 
Title: Summation Formulas for the product of the q-Kummer Functions
from $E_q(2)$ 
Author: H. Ahmedov, I. H. Duru 
From: Hagi Ahmedov <hagi@gursey.gov.tr> 



Topic #11  ------------   OP-SF NET 7.5  -------------  September 15, 2000
                          ~~~~~~~~~~~~~
From: OP-SF NET Editor <muldoon@yorku.ca>
Subject: Changes of address, WWW pages, etc.

Wolfgang Lay informs us that his e-mail address has changed to:
WolfgangLay@swol.de



Topic #12  ------------   OP-SF NET 7.5  -------------  September 15, 2000
                          ~~~~~~~~~~~~~
From: OP-SF NET Editor <muldoon@yorku.ca>
Subject: About the Activity Group

The SIAM Activity Group on Orthogonal Polynomials and Special Functions
consists of a broad set of mathematicians, both pure and applied.  The
Group also includes engineers and scientists, students as well as experts.  
We have around 140 members scattered about in more than 20 countries.  
Whatever your specialty might be, we welcome your participation in this
classical, and yet modern, topic.  Our WWW home page is:

  http://math.nist.gov/opsf/

This is a convenient point of entry to all the services provided by the
Group.  Our Webmaster is Bonita Saunders (bonita.saunders@nist.gov).

The Activity Group sponsors OP-SF NET, which is transmitted periodically
by SIAM.  It is provided as a free public service; membership in SIAM is
not required.  The OP-SF Net Editor is Martin Muldoon (muldoon@yorku.ca).
  
To receive the OP-SF NET, send your name and email address to
poly-request@siam.org.

Back issues can be obtained at the WWW addresses:

  http://turing.wins.uva.nl/~thk/opsfnet
  http://www.math.ohio-state.edu/JAT/DATA/OPSFNET/opsfnet.html 
  http://math.nist.gov/opsfnet/archive

The NET provides fast turnaround compared to the printed Newsletter, also
sponsored by the Activity Group, and edited by Renato Alvarez-Nodarse and
Rafael Yanez.  It appears three times a year and is mailed by SIAM.  Back
issues are accessible at:

http://www.mathematik.uni-kassel.de/~koepf/siam.html
 
To receive the Newsletter, you must be a member of SIAM and of the
Activity Group.  SIAM has several categories of membership, including
low-cost categories for students and residents of developing countries.
For current information on SIAM and Activity Group membership, contact:

  Society for Industrial and Applied Mathematics
  3600 University City Science Center
  Philadelphia, PA 19104-2688 USA
  phone: +1-215-382-9800
  email: service@siam.org
   WWW : http://www.siam.org
         http://www.siam.org/membership/outreachmem.htm


Finally, the Activity Group operates an email discussion group, called
OP-SF Talk.  To subscribe, send the email message

  subscribe opsftalk Your Name

to listproc@nist.gov.  To contribute an item to the discussion, send
email to opsftalk@nist.gov.  The archive of all messages is accessible
at:

  http://math.nist.gov/opsftalk/archive



Topic #13  ------------   OP-SF NET 7.5  -------------  September 15, 2000
                          ~~~~~~~~~~~~~
From: OP-SF NET Editor <muldoon@yorku.ca>
Subject: Submitting contributions to OP-SF NET and Newsletter

To contribute a news item to OP-SF NET, send email to poly@siam.org with a
copy to the OP-SF Editor <muldoon@yorku.ca>.  Please note that submissions
to the Net are automatically considered for the Newsletter, and vice
versa, unless the contributor requests otherwise.

Contributions to the OP-SF NET 7.6 should be sent by November 1, 2000.
 
Please send your Newsletter contributions directly to the Editors: 

Renato Alvarez-Nodarse
Departamento de Analisis Matematico
Universidad de Sevilla
Apdo. Postal 1160, 
Sevilla E-41080 Spain
fax: +34-95-455-7972
e-mail: renato@gandalf.ugr.es
        ran@cica.es

Rafael J. Yanez
Departamento de Matematica Aplicada
Universidad de Granada
E-18071 Granada, Spain
phone: +34-58-242941
fax: +34-58-242862
e-mail: ryanez@ugr.es

preferably by email, and in latex format. Other formats are also
acceptable and can be submitted by email, regular mail or fax.

The deadline for submissions to be included in the October 2000 issue is
September 15, 2000 and for the February 2001 issue it is January 15, 2001.

          
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   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.   
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   Send submissions to:              poly@siam.org                    
   Subscribe by mailing to:  poly-request@siam.org                    
                     or to:  listproc@nist.gov                        
   Get back issues from URL: http://turing.wins.uva.nl/~thk/opsfnet/  
   WWW home page of this Activity Group:                              
            http://math.nist.gov/opsf/                        
   Information on joining SIAM                                        
      and this activity group:  service@siam.org                     
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       The elected Officers of the Activity Group (1999-2001) are:    
               Daniel W. Lozier, Chair                                
               Walter Van Assche, Vice Chair                          
               Charles F. Dunkl, Secretary                            
               Francisco Marcellan, Program Director               
       The appointed officers are:                                    
               Renato Alvarez-Nodarse and Rafael J. Yanez,            
                            Newsletter Editors                        
               Martin Muldoon, OP-SF NET editor         
               Bonita Saunders, Webmaster 
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