

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").
Copy for the newsletter of November, such as
announcements, personal notes,
visits to conferences, guests, lectures of general interest,
should be sent by email to
evertse@math.leidenuniv.nl
before October 27.
To avoid any inconvenient translating or typing work,
copy should be submitted in English plaintext.
Agenda and announcements

NWOOTKA Workshop Explicit Algebraic Number Theory
Organizers: P. Stevenhagen, R. Tijdeman
Dates/place: September 27October 2, Lorentz Center
Invited speakers: Y. Bilu (Bordeaux), J.M. Couveignes (Toulouse),
B. Edixhoven (Leiden), J. Klüners (Kassel), G. Lettl (Graz),
H.W. Lenstra (Berkeley/Leiden), M. Pohst (Berlin), A. Schinzel (Warsaw),
R. Schoof (Roma).
Other participants include: I. Gaál (Debrecen), K. Györy (Debrecen),
P. Mihailescu (Paderborn), A. Pethö (Debrecen).

General Colloquium:
October 10, 4:005:00 pm, room 174
Dr. F. Wiedijk (NIII, Katholieke Universiteit
Nijmegen): Formalizing mathematics in the computer
October 31, 4:005:00 pm, room 174
Prof.dr. S.M. Verduyn Lunel (Universiteit Leiden):
Calculating Hausdorff dimensions of invariant sets using spectral theory
Personal notes
Education

Doctoral exams, September 27, 2002

 E. Randsdorp

Graduation code: BW1
Master's Thesis: The stationary solution of the equations of motion
for a nematic liquid crystal in cylindrical flow
Supervisor: Prof.dr. R. van der Hout
Research
 Technical reports:
MI 200221  
L. Ferracina and M.N. Spijker:
Stepsize restrictions for the toalvariationdiminishing property in general RungeKutta methods

MI 200222  
D.A. Cox, J. McKay, P. Stevenhagen:
Principal moduli and class fields

MI 200223  
P. Stevenhagen:
Triangles, squares, oranges and cuboids

MI 200224  
Arie Hordijk and Dinard van der Laan:
On the average waiting time for regular routing to deterministic queues

