Lorentz Center

Workshop Diophantine Approximation

July 28-August 2, 2003

Symposium dedicated to the 60th birthday of Professor Robert Tijdeman

July 30, 2003

Lorentz Center, Leiden, The Netherlands

Organizers: Frits Beukers, Jan-Hendrik Evertse, Pieter Moree


From Monday July 28-Saturday August 2, 2003 we will organize a workshop on Diophantine approximation. This workshop will be similar to meetings in Oberwolfach or Luminy. The participants are invited. Since our facilities are limited, we are unfortunately not able to accept participants other than those already invited. On Wednesday July 30 (the 60th birthday of Robert Tijdeman) there will be a special symposium for a general audience highlighting the work of Robert Tijdeman. To this one-day symposium, everybody is welcome.

Diophantine approximation is the branch of number theory dealing with problems such as whether certain given numbers are rational or irrational, or algebraic or transcendental, how well certain given numbers can be approximated by rational or algebraic numbers, etc. The techniques from Diophantine approximation have been vastly generalized, and today there are applications to Diophantine equations and inequalities, algebraic number theory and Diophantine geometry. During the workshop we intend to cover the whole spectrum of Diophantine approximation, such as applications of effective methods (linear forms in logarithms, transcendence) and ineffective methods (Roth's theorem, Schmidt's Subspace Theorem), computational results, connections with combinatorial word problems, and connections with Diophantine geometry.

Program of the symposium on July 30

Program of the workshop:

Program of the workshop

Abstracts (pdf-file)

Abstracts (postscript)


Both the workshop and the symposium will take place at the Lorentz Center, which is located at approximately 2 km. from the center of Leiden and from the railway station "Leiden Centraal."
The Lorentz Center is located on the fourth floor (derde verdieping) of the Oort Building (the Oort building is a new grey building which is connected to the Huygens laboratory and opposite to the Mathematical Institute; see the picture). The address of the Lorentz Center is:

Niels Bohrweg 2, 2333 CA Leiden
tel. +(31) 71 527 5401/5400
fax +(31) 71 527 5415

Trains, buses, Schiphol airport
How to get to the Lorentz Center
Detailed map of the surroundings
Larger scale map

Further information:

See the homepage of the Lorentz Center, or contact the organizers:

List of participants in the workshop

Financial support:

Last modified on Friday, 13-Jun-2003 15:47:59 MEST.