Dipendra Prasad 氏 (Tata Institute of Fundamental Research)
『 Ext Analogues of Branching laws 』

内容:
The decomposition of a representation of a group when restricted to a subgroup is an important problem well-studied for finite and compact Lie groups, and continues to be of much contemporary interest in the context of real and $p$-adic groups.
We will survey some of the questions that have recently been considered, and look at a variation of these questions involving concepts in homological algebra which gives rise to interesting newer questions.