

The Mathematical Institute Newsletter is maintained
by JanHendrik Evertse.
The newsletter is 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").
Copy for the May newsletter, such as announcements, personal
notes, visits to conferences, guests (with
place of origin and date of arrival and departure),
lectures of general
interest, Ph.D. thesis defenses (with title of thesis), etc.
should be sent by email to
evertse at math.leidenuniv.nl
before April 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

Dutch/Belgian Mathematical Conference 2004 on
Friday/Saturday April 16/17 at Tilburg
This is a reminder of
the joint Dutch/Belgian Mathematical Conference,
organized by the Koninklijk Wiskundig Genootschap and the Belgisch Wiskundig
Genootschap.
For further information, see
http://www.uvt.nl/nmc2004.

Workshop Continuous and Discrete Random Spatial Processes
from April 2024
From Monday April 20Friday April 24 there will be a workshop with the above mentioned title
at the Lorentz Center. The workshop is organized by J. van den Berg (CWI)
and B. Nienhuis (Universiteit van Amsterdam). For further information see
http://www.lc.leidenuniv.nl/lc/web/2004/20040420/info.php3?wsid=95.

Workshop Harmonic Analysis and Homogeneous Spaces
from August 2326
This is a preliminary announcement of the above mentioned workshop,
which will be organized at the Lorentz Center
from Monday August 23 Thursday August 26.
The workshop is organized by S. Hille (Leiden), E. Opdam
(Universiteit van Amsterdam), M. de Jeu (Leiden), W. Kosters (Leiden),
E. Koelink (TU Delft), F. Bakker (Leiden) and M. Pevzner (University of Reims).
For
further information see
http://www.lc.leidenuniv.nl/lc/web/2004/20040823/info.php3?wsid=122.
Consecutively, on Friday August 27, there will be a separate special
day on the occasion of the 65th birthday of prof.dr. G. van Dijk and his
subsequent speach in academia in relation to his retirement.

Abel Prize 2004 awarded to Atiyah and Singer
(Copied from the electronic IMU newsletter, March 2004)
The Norwegian Academy of Science and Letters has decided to award
the Abel Prize for 2004, jointly to Sir Michael Francis Atiyah,
University of Edinburgh (UK) and Isadore M. Singer, Massachusetts
Institute of Technology (USA).
Atiyah and Singer will receive the prize "for their discovery and
proof of the index theorem, bringing together topology, geometry and
analysis, and their outstanding role in building new bridges between
mathematics and theoretical physics".
The Abel Prize Award ceremony will take place 25 May 2004 at the
University of Oslo Aula.
The Abel Prize, established by the Norwegian Goverment in 2002 and
awarded annually, is an international prize for outstanding
scientific work in the field of mathematics. The Prize carries a
cash award of 6 million Norwegian kroner (about US $ 800,000).
For more information, see:
http://www.abelprisen.no/en/.
Guests

Guest of R. Tijdeman:

 Dr. A. Alpers (München) from April 2126.
He will give a lecture on Discrete Tomography and the ProuhetTarryEscott
Problem in the Intercity Number Theory Seminar at Nijmegen on Friday April 19.
Visits/lectures outside our institute


 P. Stevenhagen:
On April 2 he will give a lecture at the
Seminario di Teoria dei numeri at the Università di Roma Tor Vergata.
Technical reports


MI 200403  
S. Aparicio:
Harmonic Analysis on SO(n,C)/SO(n1,C), n>=3. 
MI 200404  
V.F. Molchanov:
Harmonic Analysis on a Pair of Hyperboloids. 
MI 200405  
S.Aparicio:
Complex Generalized Gelfand Pairs. 
MI 200406  
L. Ferracina and M.N. Spijker:
Stepsize restrictions for totalvariationboundedness
in general RungeKutta procedures. 
Doctoral exams


 Willem Jan Palenstijn
Title Master's thesis: Galois Action on Division Points.
Graduation committee: Prof. P. Stevenhagen (chair),
Dr. B. de Smit (supervisor), Prof. H.W. Lenstra, Dr. J.H. Evertse
Specialization: Algebra
Date: March 29, 2004
