The confirmed speakers are:

• Dan Bernstein, University of Illinois at Chicago
• Manjul Bhargava, Princeton University
• James Borger, University of Chicago
• Henri Cohen, Universitié Bordeaux I
• Bas Edixhoven, Universiteit Leiden
• Steven Hillion, QRS Corporation
• Frans Oort, Universiteit Utrecht
• Jonathan Pila, University of Melbourne
• Carl Pomerance, Bell Labs
• Ken Ribet, University of California at Berkeley
• Bart de Smit, Universiteit Leiden
• William Stein, Harvard University
• Hui June Zhu, McMaster University
• Michael Zieve, Center for Communications Research, Princeton

Friday
Talks at MSRI

9:00	Welcome
9:15-10:00	Pila	Concordant sequences
	Coffee Break
10:35-11:20	Stein	Possibilities for Shafarevich-Tate groups of abelian varieties
11:30-12:15	Zhu	p-adic variation of L-functions
	Lunch
2:00-2:45	Borger	Non-linear bialgebras: A structural approach to the Witt vectors
	Tea
4:00-4:45	de Smit	Escher, the Droste effect, and elliptic curves
5:00-6:30	Reception

Saturday
Talks in 306 Soda Hall on the Berkeley campus

9:30-10:15	Oort	Abelian varieties over finite fields
	Coffee Break
11:00-11:45	Bhargava	Rings of small rank
	Lunch
2:00-2:45	Edixhoven	Special n-tuples of elliptic curves
2:55-3:40	Ribet	Subgroups of GL(2) over ramified rings
	Coffee Break
4:15-5:00	Hillion	Wondrous art: Some Greek mathematical poetry
6:30	Banquet

Sunday
Talks in 306 Soda Hall on the Berkeley campus

9:30-10:15	Bernstein	A new proof that 83 is prime
	Coffee Break
11:00-11:45	Pomerance	The fundamental problem of arithmetic
	Lunch
1:30-2:15	Cohen	Three surveys related to Hendrik Lenstra
2:25-3:10	Zieve	Automorphism groups of curves
	Coffee Break
	Farewell