Tommaso Scognamiglio

collaborators

2 papers

math.AG2023

Cohomology of non-generic character stacks

We study (compactly supported) cohomology of character stacks of punctured Riemann surfaces with prescribed semisimple local monodromies at punctures. In the case of generic local…

math.RT2023

A generalization of Kac polynomials and tensor product of representations of $G L_{n} (F_{q})$

Tommaso Scognamiglio

We study the multiplicities of semisimple split characters in tensor product of semisimple split characters of $G L_{n} (F_{q})$ . We prove that these multiplicities are polynomi…

Cohomology of non-generic character stacks

A generalization of Kac polynomials and tensor product of representations of GLn​(Fq​)

A generalization of Kac polynomials and tensor product of representations of $G L_{n} (F_{q})$