English

On Multiplicity Formula for Spherical Varieties

Representation Theory 2019-08-08 v3

Abstract

In this paper, we propose a conjectural multiplicity formula for general spherical varieties. For all the cases where a multiplicity formula has been proved, including Whittaker model, Gan-Gross-Prasad model, Ginzburg-Rallis model, Galois model and Shalika model, we show that the multiplicity formula in our conjecture matches the multiplicity formula that has been proved. We also give a proof of this multiplicity formula in two new cases.

Keywords

Cite

@article{arxiv.1905.07066,
  title  = {On Multiplicity Formula for Spherical Varieties},
  author = {Chen Wan},
  journal= {arXiv preprint arXiv:1905.07066},
  year   = {2019}
}

Comments

Add the proof of the multiplicity formula of K-types for GL(n) and for all the complex reductive groups

R2 v1 2026-06-23T09:09:55.323Z