Colloquium


DATE2017-12-21 16:10-17:00

PLACE數學館3174教室

SPEAKER蔡宛育 博士(中央研究院數學研究所

TITLEUnitary Small Representations of Nonlinear Lie Groups

ABSTRACT In this talk, we first sketch the historical development of representation theory of reductive Lie groups, and introduce some basic notions and invariants to study it. Some major problems that have been solved for linear Lie groups are still mysterious for nonlinear Lie groups. We then discuss the growing importance of studying genuine representations of the nonlinear double cover of a real reductive Lie group. In particular, we are interested in the classification of genuine small epresentations and the algebraic properties that they carry. These small representations are part of the building blocks of the unitary dual of a onlinear real Lie group. This talk is based on some recent results appearing in my paper and the joint work with Dan Barbasch.