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Related papers: General Serre weight conjectures

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We survey some recent progress on generalizations of conjectures of Serre concerning the cohomology of arithmetic groups, focusing primarily on the "weight" aspect. This is intimately related to (generalizations of) a conjecture of Breuil…

Number Theory · Mathematics 2022-03-07 Daniel Le , Bao Viet Le Hung

We prove the weight part of Serre's conjecture for Galois representations valued in $\mathrm{GSp}_4$ that are tamely ramified with explicit genericity at places above $p$ as conjectured by Herzig--Tilouine and Gee--Herzig--Savitt. This…

Number Theory · Mathematics 2025-10-07 Daniel Le , Bao V. Le Hung , Heejong Lee

Under some technical assumptions of a global nature, we establish the weight part of Serre's conjecture for mod $p$ Galois representations for CM fields that are tamely ramified and sufficiently generic at $p$.

Number Theory · Mathematics 2025-09-24 Daniel Le , Bao V. Le Hung

We prove the Breuil-M\'ezard conjecture for 2-dimensional potentially Barsotti-Tate representations of the absolute Galois group G_K, K a finite extension of Q_p, for any p>2 (up to the question of determining precise values for the…

Number Theory · Mathematics 2013-09-19 Toby Gee , Mark Kisin

We formulate an analogue of the Breuil-M\'ezard conjecture for the group of units of a central division algebra over a $p$-adic local field, and we prove that it follows from the conjecture for $\mathrm{GL}_n$. To do so we construct a…

Number Theory · Mathematics 2025-07-21 Andrea Dotto

Let p > 2 be prime. We state and prove (under mild hypotheses on the residual representation) a geometric refinement of the Breuil-M\'ezard conjecture for 2-dimensional mod p representations of the absolute Galois group of Qp. We also state…

Number Theory · Mathematics 2013-03-21 Matthew Emerton , Toby Gee

We study the weight part of (a generalisation of) Serre's conjecture for mod l Galois representations associated to automorphic representations on rank two unitary groups for odd primes l. We propose a conjectural set of Serre weights,…

Number Theory · Mathematics 2011-06-29 Thomas Barnet-Lamb , Toby Gee , David Geraghty

We construct projective varieties in mixed characteristic whose singularities model, in generic cases, those of tamely potentially crystalline Galois deformation rings for unramified extensions of $\mathbb{Q}_p$ with small regular…

Number Theory · Mathematics 2022-06-16 Daniel Le , Bao V. Le Hung , Brandon Levin , Stefano Morra

We establish a geometrisation of the Breuil-M\'ezard conjecture for potentially Barsotti-Tate representations, as well as of the weight part of Serre's conjecture, for moduli stacks of two-dimensional mod p representations of the absolute…

Number Theory · Mathematics 2025-02-05 Ana Caraiani , Matthew Emerton , Toby Gee , David Savitt

We prove the weight elimination direction of the Serre weight conjectures as formulated by Herzig for forms of $U(n)$ which are compact at infinity and split at places dividing $p$ in generic situations. That is, we show that all modular…

Number Theory · Mathematics 2019-12-19 Daniel Le , Bao V. Le Hung , Brandon Levin

We formulate and prove the weight part of Serre's conjecture for three-dimensional mod $p$ Galois representations under a genericity condition when the field is unramified at $p$. This removes the assumption in \cite{arXiv:1512.06380},…

Number Theory · Mathematics 2024-06-19 Daniel Le , Bao Viet Le Hung , Brandon Levin , Stefano Morra

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 ramified at $p$ and prove the weight elimination direction of…

Number Theory · Mathematics 2024-12-16 Daniel Le , Bao Viet Le Hung , Brandon Levin , Stefano Morra

In this article, we prove a generalization of a theorem (Ogg's conjecture) due to Bary Mazur for arbitrary $N\in \N$ and for {\it number fields}. The main new observation is a modification of a theorem due to Glenn Stevens for the…

Number Theory · Mathematics 2021-08-10 Debargha Banerjee , Narasimha Kumar , Dipramit Majumdar

We prove in generic situations that the lattice in a tame type induced by the completed cohomology of a $U(3)$-arithmetic manifold is purely local, i.e., only depends on the Galois representation at places above $p$. This is a…

Number Theory · Mathematics 2020-03-05 Daniel Le , Bao V. Le Hung , Brandon Levin , Stefano Morra

We prove a version of the weight part of Serre's conjecture for mod $p$ Galois representations attached to automorphic forms on rank 2 unitary groups which are non-split at $p$. More precisely, let $F/F^+$ denote a CM extension of a totally…

Number Theory · Mathematics 2022-12-21 Karol Koziol , Stefano Morra

We formulate a version of the Breuil--Mezard conjecture for quaternion algebras, and show that it follows from the Breuil--Mezard conjecture for GL_2. In the course of the proof we establish a mod p analogue of the Jacquet--Langlands…

Number Theory · Mathematics 2013-09-03 Toby Gee , David Geraghty

We give a new local proof of the Breuil-M\'ezard conjecture in the case of a reducible representation of the absolute Galois group of $\mathbb{Q}_p$, $p>2$, that has scalar semi-simplification, via a formalism of Pa\v{s}k\=unas.

Number Theory · Mathematics 2017-05-17 Fabian Sander

Let p > 2 be prime. We prove the weight part of Serre's conjecture for rank two unitary groups for mod p representations in the unramified case (that is, the Buzzard-Diamond-Jarvis conjecture for unitary groups), by proving that any Serre…

Number Theory · Mathematics 2013-09-04 Toby Gee , Tong Liu , David Savitt

Let F be a totally real field, and v a place of F dividing an odd prime p. We study the weight part of Serre's conjecture for continuous, totally odd, two-dimensional mod p representations rhobar of the absolute Galois group of F that are…

Number Theory · Mathematics 2015-06-10 Fred Diamond , David Savitt

We prove the `weight elimination' part of the weight part of Serre's conjecture for mod 2 Galois representations for rank two unitary groups, by modifying the results in arXiv:1203.2552 and arXiv:1309.0527.

Number Theory · Mathematics 2022-10-28 Xiyuan Wang
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