

The Mathematical Institute Newsletter is maintained by
JanHendrik Evertse. The newsletter will be issued
the first week of each month,
except for July and August.
The electronic version of the newsletter can be found on
http://www.math.leidenuniv.nl/~evertse/newsletter.shtml
(go to the homepage of the Mathematical Institute and click on "Newsletter").
There will be no newsletter in July and August.
Copy for the September newsletter, such as
announcements, personal notes,
visits to conferences, guests, lectures of general interest,
PhD.defenses or doctoral exams under your supervision, or other announcements
of general interest
should be sent by email to
evertse@math.leidenuniv.nl
before August 27.
Copy should be submitted in English plaintext,
so that it can be inserted into the newsletter without
time consuming typing or translating work.
Agenda and announcements

PhD. defense of Dinard van der Laan on Tuesday {!} June 24 at 3:00 pm
On Tuesday June 24 Dinard van der Laan will defend his Ph.D.thesis, entitled
The structure and performance of optimal routing sequences.
Promotors are Prof.dr. A. Hordijk and Prof.dr. R. Tijdeman.
Prof. B. Gaujal (ENS, Lyon) is referee. The session starts at 3:00 pm.

Workshop Diophantine approximation (July 28August 2) and Symposium
in honour of the 60th birthday of Prof. Tijdeman (July 30)
From Monday July 28Saturday August 2 there will be a workshop on Diophantine approximation at the Lorentz Center.
On Wednesday July 30 there will be a special symposium
for a general audience to celebrate the 60th birthday of Prof. Robert
Tijdeman which is also at the Lorentz Center. Lectures on this symposium
will be given by Wolfgang Schmidt (University of Boulder, USA),
Vera T. Sós (Renyi Institute, Budapest), Cameron L. Stewart
(University of Waterloo, Canada), and Michel Waldschmidt (Institut de
Mathématique de Jussieu, Paris). Both the workshop and the
symposium
are organized by Frits Beukers (Utrecht), Pieter Moree (Amsterdam)
and JanHendrik Evertse.
See
http://www.math.leidenuniv.nl/~evertse/RTXL.shtml.

Meeting of the Review Committee for Research in Mathematics from August
2628.
The Review Committee for mathematical research
in The Netherlands will receive delegations of all mathematical institutes
of Dutch universities from August 2628.
The committee is chaired by Prof.dr. Hans G. Kaper (NSF, Arlington/Washington,
USA).

Cooperation between the Mathematical Institute and NEMO (science
museum in Amsterdam)
There will be a cooperation between the Mathematical Institute and
NEMO (see http://www.enemo.nl),
the science museum on top
of the IJtunnel in Amsterdam, starting this summer.
The purpose of the project is to replace the present mathematics exhibition
about eurodiffusion by a new interactive exhibition showing the
Droste effect and conformal transformations.
From JuneSeptember, Theun de Vreede
(student
Computer Science at the Haagse Hogeschool specialized in "design of
interaction") will do a final project under supervision of Bart de Smit,
in which he will develop the above mentioned exhibition.
Deze zomer begint een samenwerkingsproject van het Mathematisch
Instituut met NEMO
(zie http://www.enemo.nl), het wetenschapsmuseum op de
IJtunnel in Amsterdam. Doel is de huidige wiskundeattractie over
eurodiffusie te vervangen door een interactieve opstelling met het
Drosteeffect en conforme transformaties. Theun de Vreede, student
"Informatica en Informatiekunde" aan de Haagse Hogeschool met
afstudeerrichting "Vormgeving en ontwerp van Interactie" zal hier in
de maanden JuniSeptember aan het MI een afstudeerproject van maken
onder begeleiding van Bart de Smit.

Presentation of the Abel prize 2003 to
JeanPierre Serre on June 3 in Oslo
In 2002, the Norwegian government established the
Niels Henrik Abel Memorial Fund, with the
objective of awarding an international prize for outstanding
mathematical research. The first Abel prize has been awarded in 2003.
The Abel laureates are chosen by the Norwegian Academy of Science and Letters,
at the advice of the Abel committee which is appointed by the Academy.
According to the press release of
the Academy, the Abel
Prize for 2003 has been awarded to
JeanPierre Serre
(Collège de France, Paris, France),
"for playing a key role in shaping the modern form of many parts of
mathematics, including topology, algebraic geometry and number theory".
The Abel prize 2003
will be presented to JeanPierre Serre on June 3.
The ceremony will start at 2:00 pm in the aula of the University of Oslo.
Further information can be found on
http://www.abelprisen.no/index_english.html.
The Dutch website
http://www.strw.leidenuniv.nl/~impact/jaargangen/1/april/Tijdeman.html
gives an overview of the other existing mathematical prizes.
On
http://nobelprizes.com/nobel/why_no_math.html
there is a discussion why there is no Nobel prize for mathematics.
(This message has been suggested by Gerard Westhoff (2nd year mathematics student)).
Personal notes

New employees (permanent faculty):

 Dr. Sander C. Hille (ud), per May 1, 2003, research group Analysis
(Prof.dr. S.J. Verduyn Lunel)

"I am working as assistant professor in the group of Sjoerd Verduyn Lunel,
tasked to increase the research effort on the topic of Computational Life
Science (CLS). That is, the application and development of mathematical
tools, techniques and results to biological (dynamical) systems. My
background is in analysis, in particular harmonic analysis and infinite
dimensional representations of Lie groups, with Gerrit van Dijk in Leiden.
Previously I worked at the Telematica Instituut in Enschede on 'business
models' in relation to technology adoption and diffusion, for example for
electronic payment."
Guests

Guests of S.A. van de Geer:
 Bineeta Adityan (Mahatma Gandhi University, Kottayam)
 Bernadetta Tarigan

Guests of B. Edixhoven:
 Ariane Mezard (Orsay, France) is visiting our institute
from February 1 July 31.
She works in Arithmetic Algebraic Geometry.
 Emmanuel Ficatier (student at the École Polytechnique
at Palaiseau) is visiting the geometry group from April 7July 2.
He is doing a traineeship on factorization methods for large integers based on
elliptic curves.

Guests of R. Tijdeman:
 A. Bérczes, L. Hajdu and A. Pintér (Debrecen)
will visit Leiden from May 25 to June 7.

Guest of A. Hordijk and R. Tijdeman:
 Prof. B. Gaujal (ENS, Lyon) will visit the institute from
June 2327.

Guest of B. de Smit:
 Lara Thomas (Toulouse) will be at the Mathematical Institute
during June. Her visit is funded by the European Network GETM.
Working visits/visits to conferences


 M. Lübke will visit the University of Marseille from June 18
for collaboration with A. Teleman.
 M.S. Stupariu will attend the seminar on Geometry and Combinatorics of
Representations of Quivers in Oberwolfach from June 814.
 S.A. van de Geer will attend the Cowles workshop in Yale, June 1520
and the Purdue Symposium, June 2124. Further she will be at the
Joint Statistical Meeting in San Francisco from August 47.
 G. van Dijk will attend the conference
"Kolmogorov and contemporary mathematics" in Moscow from June 1521.
Further he will attend the conference
in honour of the 60th birthday of
Prof. Tom Koornwinder in Amsterdam from August
2527. At both conferences he will give an invited lecture.
 P. Stevenhagen will attend the Conference on Explicit
Methods in Number Theory (organized by H. Cohen, H.W. Lenstra and D. Zagier)
in Oberwolfach from July 2025.
 B. de Smit will give a lecture at the MSRI Summer Graduate Program
"Mathematical Graphics", July 1425, at reed College, Portland, Oregon.
Further he
will attend the Conference on Explicit Methods
in Number Theory in Oberwolfach.
 R. Tijdeman will attend the Journées Arithmétiques in Graz
(Austria) from July 611. Further he will visit the Technical University
of Vienna from July 16.
Technical reports


MI 200308  
L. Ferracina and M.N. Spijker:
An extension and analysis for the Shuosher representation of RungeKutta methods

MI 200309  
H.J. Hupkes:
Analysis of Newton's Method to Compute Travelling Wave Solutions to Lattice Differential Equations

MI 200310  
L.A. Peletier and Vivi Rotschäfer:
Pattern selection of solutions of the SwiftHohenberg equation

