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Extract from OPSF NET
From: R. ÁlvarezNodarse (
renato@dulcinea.uc3m.es)
Subject: International Workshop
on Orthogonal Polynomials in Mathematical
Physics,
in Honour of André Ronveaux: Madrid, June 2426, 1996
A total of 74 participants engaged in friendly discussions and a pleasant
atmosphere accompanied the meeting. Thirteen Spanish institutions were
represented by 53 people and another thirteen foreign institution by the
rest. Each of the five invited speakers gave two onehour lectures:

Natig Atakishiev:
(Instituto de Investigaciones en Matemáticas Aplicadas y en
Sistemas. Univ. Nacional Autónoma de México. Cuernavaca.
México.)
Difference Equations and Some of their Solutions. Ramanujantype
Continuous Measures
for Classical qPolynomials.

Jesus S. Dehesa:
(Departamento de Física Moderna. Univ. de Granada, Spain.)
Information Theory, Quantum Entropy and Orthogonal Polynomials.

Yuri F. Smirnov:
(Instituto de Física, Univ. Nacional Autónoma de
México,
México.
Orthogonal polynomials of a Discrete Variable
and Quantum Algebras SU_q(2) and SU_q(1,1). Hidden sl(2)
Algebra of the Finite Difference Equations.

H. T. Koelink:
(Univ. of Amsterdam, The Netherlands.)
Addition Formulas for
qSpecial Functions. Hecke algebras and qKrawtchouk polynomials.

Alexander Aptekarev:
(Keldysh Institute, Russian Academy of Sciences, Moscow.)
Todatype
Dynamics for the Coefficients of Recurrence Relations.
The sessions were completed by thirteen halfhour communications. These
short communications were delivered by:

André Ronveaux:
Orthogonal Polynomials: Connection and Linearization Coefficients.

Roeloef Koekoek: Recent Developments in the Research of
Differential Operators for Generalized (Sobolev) Orthogonal
Polynomials.

Aldo Tagliani:
Entropyconvergence, Instability in Stieltjes and
Hamburger Moment Problems.
.

Ramón Orive:
Rational Approximation to Certain
Functions with Branch Points.
 Wolfgang Gawronski:
On the Zeros of Classical Orthogonal
Polynomials with Large Complex Parameters.

Lucas Jódar: A Matrix Formula for the Generating Function
of the Product
of Hermite Matrix Polynomials.

Pierpaolo Natalini:
Some New Sets of
Relativistic Orthogonal Polynomials.

Franciszek Szafraniec: Orthogonal
polynomials in building models of the quantum harmonic
oscillator.

Federico Finkel:
Quasi Exactly Solvable
Potentials on the Line and Orthogonal
Polynomials.

Franz Peherstorfer: Periodic and
quasiperiodic Toda lattices.

Jorge SánchezRuiz: Position and
momentum information entropies of the harmonic oscillator
and logarithmic potential of Hermite polynomials.

Jorge Arvesú: The classical Laguerre
polynomials in a relativistic quantumstatistical
model.

Antonio Duran: On orthogonal matrix
polynomials.

José Carlos Petronilho: On Some
Polynomial Modifications of Measures. Applications.
All speakers were kindly invited to submit written versions of their talks
for the proceedings of the meeting which will be published in the near
future. The Workshop was dedicated in honour of Prof. André
Ronveaux on
the occassion of his retirement from the University and his fruitful
mathematical life.
The organizing Committee was: Manuel Alfaro (Univ. de Zaragoza),
Renato ÁlvarezNodarse (Secretary) (Univ. Carlos III),
Antonio García García (Univ. Carlos III),
Guillermo López Lagomasino (Univ. Carlos III) and
Francisco Marcellán (Chairman) (Univ. Carlos III)
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