A level raising result for modular Galois representations modulo prime powers

Panagiotis Tsaknias

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arXiv · 1203.6541

A level raising result for modular Galois representations modulo prime powers

Panagiotis Tsaknias

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Abstract

In this work we provide a level raising theorem for $\mod \lambda^n$ modular Galois representations. It allows one to see such a Galois representation that is modular of level $N$, weight 2 and trivial Nebentypus as one that is modular of level $Np$, for a prime $p$ coprime to $N$, when a certain local condition at $p$ is satisfied. It is a generalization of a result of Ribet concerning $\mod \ell$ Galois representations.

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Panagiotis Tsaknias. 2012-03-29. A level raising result for modular Galois representations modulo prime powers. https://arxiv.org/abs/1203.6541

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