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Spanning isogeny classes of principally polarized abelian surfaces with RM

Number Theory 2024-05-31 v1

Abstract

We describe how isogenies between principally polarized abelian surfaces (PPAS) with real multiplication (RM) can be decomposed into elementary isogeny types. This leads to a strategy for enumerating the isogeny class of a given PPAS with RM. This note is part of an ongoing work with R. van Bommel, S. Chidambaram, and E. Costa and is not indended for separate publication.

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Cite

@article{arxiv.2405.19820,
  title  = {Spanning isogeny classes of principally polarized abelian surfaces with RM},
  author = {Jean Kieffer},
  journal= {arXiv preprint arXiv:2405.19820},
  year   = {2024}
}

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8 pages