A Local-global principle for isogenies of composite degree
Number Theory
2022-05-09 v2
Abstract
Let be an elliptic curve over a number field . If for almost all primes of , the reduction of modulo that prime has rational cyclic isogeny of fixed degree, we can ask if this forces to have a cyclic isogeny of that degree over . Building upon the work of Sutherland, Anni, and Banwait-Cremona in the case of prime degree, we consider this question for cyclic isogenies of arbitrary degree.
Cite
@article{arxiv.1801.05355,
title = {A Local-global principle for isogenies of composite degree},
author = {Isabel Vogt},
journal= {arXiv preprint arXiv:1801.05355},
year = {2022}
}
Comments
30 pages