Speaker: 余欢欢博士，北京国际数学中心         

Inviter: 聂思安 研究员

Title: A refinement of the Coherence Conjecture of  Pappas-Rapoport

Language: Chinese 

Time & Venue: 2024.11.07 14:30-15:30 数学院南楼N818

Abstract: The Coherence Conjecture of Pappas-Rapoport, proven by X. Zhu, establishes a relationship between the geometry of different affine Schubert varieties, notably providing dimension equalities for the sections of line bundles on (unions of) affine Schubert varieties in different affine partial flag varieties. In this talk, I will present a refinement of this conjecture, demonstrating that these spaces of global sections are isomorphic as representations of certain group. I will also discuss applications of this result, particularly to affine Demazure modules, accompanied by concrete examples. This is joint work with Jiuzu Hong.