

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 February newsletter, such as announcements, personal
notes, visits to conferences, guests (with 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 January 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

New Year's coffee on Monday January 5
The board of the LION (Institute for Physics) cordially invites
all personnel of the Mathematical Institute and the
LIACS for a New Year's coffee
on Monday January 5 at 10:00 am in the central hall of the
Huygens Laboratory.

New Year's reception on Monday January 5
On January 5 from 4:006:00 pm there will be a New Year's reception
in the hall of the Gorlaeus laboratories.
During this reception,
there will be a presentation of the C.J. Kok prizes for the
'discoverer of the year 2003'. The institute directors of the
Faculty of Sciences have nominated eight candidates for the
C.J. Kok prizes. You may cast your vote on any of these candidates
before January 5 at 12:00 on the website
http://www.science.leidenuniv.nl/ontdekkingvanhetjaar.

Inaugural lecture by Prof. Bas Edixhoven on Friday January 9
Prof. Bas Edixhoven will give his 'Oratio' on Friday January 9
at 4:00 pm in the 'Groot Auditorium' of the Academy building
at the Rapenburg.
Further information will follow.

General Colloquium on Thursday January 29
Dr. Wim Couwenberg (Universiteit van Amsterdam): TBA
Time/place: 4:005:00 pm, room 174.
Further information:
http://www.math.leidenuniv.nl/~evertse/colloquium.shtml

Kloosterman Lecture by Prof. Noriko Yui on Thursday February 5
Prof. Noriko Yui (Queen's University, Kingston, Canada)
has been appointed as the 2003(!) Kloosterman
Professor.
She will visit our institute from January 15March 15.
On February 5 she will deliver her Kloosterman lecture.
Title: TBA
Time/place: 4:005:00 pm, room 174.

General Colloquium on Thursday February 19
Dr. Peter Grunwald (CWI, Amsterdam): TBA
Time/place: 4:005:00 pm, room 174.
Further information:
http://www.math.leidenuniv.nl/~evertse/colloquium.shtml
Personal notes

New employees (PhD students):

 drs. H.J. Hupkes per January 1, 2004
(Prof.dr. Sjoerd Verduyn Lunel)


 drs. S.W. Rosema per January 1, 2004 (Prof.dr. Rob Tijdeman)


New employees (Postdocs):

 Dr. J.F. Williams per September 1, 2003 (CWI/UL, Analysis)


New employees (student assistants for education
from January 1, 2004 June 1, 2004):

 P. Bruin


 M. van der Schans


 P. Tibboel


 A. Stolk


 A. Veldman


 D. Worm

Guests

Kloosterman Professor

 Prof. Noriko Yui (Queen's University, Kingston, Canada) is the Kloosterman Professor
2003. She will visit our institute from January 15March 15.
She will give a Kloosterman lecture on February 5 (see above)
and several lectures at the Intercity Number Theory seminar.

Guest of G. van Dijk:

 Prof. V.F. Molchanov (Tambov, Russia)
in January and February.
Visits/lectures outside our institute


 J.H. Evertse:
From January 7January 13 he will visit the university of Udine (Italy).
On January 12 he will give a lecture titled
"On the number of equivalence classes of binary forms
of given degree and given discriminant."
 L. Kallenberg:
From January 13  15,
the 29th Conference on the Mathematics of
Operations Research will be held in Lunteren, including a Seminar on
Online Methods. Both the Conference and the Seminar are organized by
Lodewijk Kallenberg.
See
http://www.math.leidenuniv.nl/~lnmb/conferences/lunteren2004
Technical reports


MI 200318  
L.A. Peletier and J.A. Rodriguez:
The discrete SwiftHohenberg equation. 
MI 200319  
A. Bérczes, J.H. Evertse and K. Györy:
On the number of equivalence classes of binary forms
of given degree and given discriminant. 
MI 200320  
J.H. Evertse:
Linear equations with unknowns from a multiplicative group
whose solutions lie in a small number of subspaces. 
MI 200321  
P. Stevenhagen and R. Bröker:
Elliptic curves with a given number of points. 
