The index of \mathbbT^an in \mathbbT

2021/02/28 by Noah Taylor, Taylor, Noah
Mathematics · #FOS: Mathematics #Number Theory (math.NT) #math.NT

paper · pdf · doi:10.48550/arxiv.2103.00649

13 pages, no figures

arxiv created 2021/02/28 · arxiv updated 2021/03/02

Abstract

For a prime level N, we compute the index of the anemic Hecke algebra of weight 2 level Γ₀(N) forms inside the full Hecke algebra. We prove that the index is fully described by the presence of weight 1 Katz forms of the same level.

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