September 11 
Peter Schneider (University of Munster and MSRI) The talk will describe joint work with L. Berger and B. Xie
in which we build, for a finite extension L of Q_p, a new theory of
(phi,Gamma)modules whose coefficient ring is the ring of holomorphic
functions on the rigid character variety of the additive group o_L, resp. a
"Robba" version of it. 
October 2 
TBA TBA 
October 9 
TBA TBA 
October 16 
TBA TBA 
October 23 
TBA TBA 
October 30 
23pm Given a global field K and a rational function f(x) defined over K, one may take preimages of 0 under successive iterates of f, and thus obtain an infinite tree by assigning edges according to the action of f. The absolute Galois group of K acts on the tree, giving a subgroup of the group of all tree automorphisms. 34pm TBA 
November 6 
TBA TBA 
November 13 
TBA TBA 
November 20 
TBA TBA 
November 27 
THANKSGIVING BREAK

December 4 
TBA TBA 
December 11 
TBA TBA 