English

Hypergeometric L-functions in average polynomial time

Number Theory 2020-09-22 v4

Abstract

We describe an algorithm for computing, for all primes pXp \leq X, the mod-pp reduction of the trace of Frobenius at pp of a fixed hypergeometric motive in time quasilinear in XX. This combines the Beukers--Cohen--Mellit trace formula with average polynomial time techniques of Harvey et al.

Keywords

Cite

@article{arxiv.2005.13640,
  title  = {Hypergeometric L-functions in average polynomial time},
  author = {Edgar Costa and Kiran S. Kedlaya and David Roe},
  journal= {arXiv preprint arXiv:2005.13640},
  year   = {2020}
}

Comments

15 pages, 1 figure; v4 several exposition improvements as suggested the referees

R2 v1 2026-06-23T15:52:00.822Z