Kloosterman Centennial Celebration

Leiden, April 7, 2000

B. de Smit, H.W. Lenstra, J.P. Murre, R. Tijdeman

Number theory workshop

Lorentz Center, Leiden, June 26-30, 2000

P. Stevenhagen, B. de Smit

Algorithmic Number Theory Symposium (ANTS IV)

Leiden, July 2-7, 2000

P. Stevenhagen, H. te Riele, B. de Smit

Pi in de Pieterskerk

Leiden, July 5, 2000

H.W. Lenstra, C. Zaal

Explicit methods in number theory

Oberwolfach, Germany, July 2001

H.W. Lenstra

L-functions from algebraic geometry (workshop)

Leiden, September 17-21, 2001

H.W. Lenstra, P. Stevenhagen

Effective methods for Diophantine equations

Debrecen, Hungary, October 22-26, 2001

R. Tijdeman

Anabelian number theory and geometry (workshop)

Leiden, December 3-5, 2001

P. Stevenhagen