Conformally covariant symmetry breaking operators on differential forms and some applications (Plenary lecture). the XXXV Workshop on Geometric Methods in Physics. Bialowieza, Poland, 2-8 July 2017.

We discuss restrictions of irreducible representations to reductive subgroups with focus on geometric question:

• Classification of confomally covariant symmetry breaking operators on differential forms.

If time permits, we shall also discuss the following related questions for orthogonal groups of rank one.

1. General background for restriction of infinite-dimensional representations of reductive groups.
2. Period of irreducible unitary representations.

References:

• T. Kobayashi. A program for branching problems in the representation theory of real reductive groups. Progr. Math. vol. 312, pp. 277-322, 2015.
• T. Kobayashi, T. Kubo, and M. Pevzner, Conformal symmetry breaking operators for differential forms on spheres, viii+192 pages. Lecture Notes in Mathematics, vol. 2170, 2016.
• T. Kobayashi and B. Speh. Symmetry Breaking for Representations of Rank One Orthogonal Groups, Memoirs of Amer. Math. Soc. 238. 2015. 118 pages.

[ poster ]

© Toshiyuki Kobayashi