Homomorphisms between Specht modules
SPEAKER: Harald Ellers
TITLE: Homomorphisms between Specht modules
ABSTRACT The problem of finding the space of homomorphisms between Specht modules has not been solved. A fairly old theorem of Carter and Payne gives some sufficient conditions for the space to be nonzero. We will look at some new ways to think about Carter-Payne homomorphisms that make them seem less mysterious. Extensions to Iwahori-Hecke algebras will also be discussed.