Stefano Morra

works on

gl2 representations 1 iwahori filtration 1 mod p cohomology 1 principal congruence subgroup 1 shimura curves 1

From the 1 of 7 linked papers with an AI index.

activity

20242026

collaborators

7 papers

math.NT2026

On the constituents of the mod $p$ cohomology of Shimura curves

Christophe Breuil, Florian Herzig, Yongquan Hu +2

The paper studies the structure of smooth admissible representations of GL₂ over an unramified p‑adic field that appear in the mod p cohomology of Shimura curves, giving detailed d…

math.NT2026

To be or not to be local

Christophe Breuil, Florian Herzig, Yongquan Hu +4

Let $p$ be a prime number and $K$ a finite unramified extension of $Q_{p}$ . For a smooth representation $I ¨ $ of $GL_{2} (K)$ occurring in some Hecke eigenspace of the…

math.NT2026

Finite length for unramified $GL_{2}$

Christophe Breuil, Florian Herzig, Yongquan Hu +2

Let $p$ be a prime number and $K$ a finite unramified extension of $Q_{p}$ . If $p$ is large enough with respect to $[K : Q_{p}]$ and under mild genericity assumptions,…

math.NT2025

Gelfand-Kirillov dimension for mod $p$ representations of $p$ -adic unitary groups of rank 2

Karol Koziol, Stefano Morra

Let $p$ be a prime number and $F / F^{+}$ a CM extension of a totally real field such that every place of $F^{+}$ above $p$ is unramified and inert in $F$ . We fix a finite place $v$ of $…

math.RT2025

Generic decompositions of Deligne--Lusztig representations

Daniel Le, Bao V. Le Hung, Brandon Levin +1

Let $G_{0}$ be a reductive group over $F_{p}$ with simply connected derived subgroup, (geometrically) connected center and Coxeter number $h + 1$ . We extend Jantzen's generic de…

math.NT2024

Extremal weights and a tameness criterion for mod $p$ Galois representations

Daniel Le, Bao Viet Le Hung, Brandon Levin +1

We study the weight part of Serre's conjecture for generic $n$ -dimensional mod $p$ Galois representations. We first generalize Herzig's conjecture to the case where the field is ra…

On the constituents of the mod p cohomology of Shimura curves

To be or not to be local

Finite length for unramified GL2​

Gelfand-Kirillov dimension for mod p representations of p-adic unitary groups of rank 2

Generic decompositions of Deligne--Lusztig representations

Extremal weights and a tameness criterion for mod p Galois representations

On the constituents of the mod $p$ cohomology of Shimura curves

Finite length for unramified $GL_{2}$

Gelfand-Kirillov dimension for mod $p$ representations of $p$ -adic unitary groups of rank 2

Extremal weights and a tameness criterion for mod $p$ Galois representations