3 papers
math.NT2026
The trianguline variety for reductive groups
Andrea Conti, Mohamed Moakher, Julian Quast
We study the trianguline variety for split connected reductive groups. We generalize a theorem of Breuil, Hellmann, and Schraen about its local structure, establishing smoothness o…
math.AG2025
On Modified Diagonal Cycles and the Beauville Decomposition of the Ceresa Cycle
Lucas Lagarde, Mohamed Moakher, Morena Porzio +2
Let be a curve of genus , and let be its Jacobian. The choice of a degree 1 divisor on gives an embedding of into ; we denote by $[C]_{}^{e}\in \ma…
math.NT2024
Quantitative level lowering for weight two Hilbert modular forms
Mohamed Moakher
We generalize a result of Ribet and Takahashi on the parametrization of elliptic curves by Shimura curves to the Hilbert modular setting. In particular, we study the behaviour of t…