Stefano Morra

activity

20232026

collaborators

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6 papers · 1 filter

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 $π$ of $GL_{2} (K)$ occurring in some Hecke eigenspace of the m…

math.NT2025

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

Christophe Breuil, Florian Herzig, Yongquan Hu +2

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

math.NT2025

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.NT2024

$K_{1}$ -invariants in the mod $p$ cohomology of $U (3)$ arithmetic manifolds

Daniel Le, Bao Viet Le Hung, Stefano Morra

Let $F / F^{+}$ be a CM extension and $H_{/ F^{+}}$ a definite unitary group in three variables that splits over $F$ . We describe Hecke isotypic components of mod $p$ algebraic modular fo…

math.NT2023

Local model theory for non-generic tame potentially Barsotti--Tate deformation rings

Bao Viet Le Hung, Ariane Mézard, Stefano Morra

We develop a local model theory for moduli stacks of $2$ -dimensional non-scalar tame potentially Barsotti--Tate Galois representations of the Galois group of an unramified extensio…

math.NT2023

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 $…

To be or not to be local

On the constituents of the mod p cohomology of Shimura curves

Finite length for unramified GL2​

K1​-invariants in the mod p cohomology of U(3) arithmetic manifolds

Local model theory for non-generic tame potentially Barsotti--Tate deformation rings

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

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

Finite length for unramified $GL_{2}$

$K_{1}$ -invariants in the mod $p$ cohomology of $U (3)$ arithmetic manifolds

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