Modularity lifting for n-dimensional ordinary Galois representations

Modularity lifting for n-dimensional ordinary Galois representations

-
David Geraghty, Harvard University
Fine Hall 322

I will discuss a generalization of the modularity lifting theorems of Clozel, Harris and Taylor to the case of ordinary Galois representations. The result is obtained by applying the Taylor-Wiles method (with innovations due to Kisin and Taylor) over a Hida family. A key step is to construct an appropriate ordinary lifting ring and determine its irreducible components.