4 papers
math.AG2026
Relative Bruhat decomposition of wonderful compactification
Fei Chen, Shang Li
In the seminal paper of Borel and Tits about reductive groups, they show some fundamental results about Bruhat cells with respect to a minimal parabolic subgroup, e.g., relative Br…
math.RT2025
Spectral transfer for metaplectic groups. II. Hecke algebra correspondences
Fei Chen, Wen-Wei Li
Let be the metaplectic group over a local field defined by an additive character of of conductor . Gan-Savin ($p \ne…
math.RT2024
Commutation of transfer and Aubert-Zelevinski involution for metaplectic groups
Fei Chen
A result of K. Hiraga says endoscopic transfer is compatible with Aubert-Zelevinski involution. In this short note, we generalize Hiraga's result to metaplectic group setting.
math.CT2024
Costability of Comodules
Fei Yu Chen
Given a ring , we have a classical result stating that the ordinary category of modules is the abelianization of the category of augmented -algebras. Analogously, using the f…