Explicit isogenies of prime degree over number fields
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2022
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| _version_ | 1866918025965338624 |
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| author | Banwait, Barinder S. Derickx, Maarten |
| author_facet | Banwait, Barinder S. Derickx, Maarten |
| contents | We provide an explicit and algorithmic version of a theorem of Momose classifying isogenies of prime degree of elliptic curves over number fields, which we implement in Sage and PARI/GP. Combining this algorithm with recent work of Box-Gajović-Goodman we determine the first instances of isogenies of prime degree for cubic number fields, as well as for several quadratic fields not previously known. While the correctness of the general algorithm relies on the Generalised Riemann Hypothesis, the algorithm is unconditional for the restricted class of semistable elliptic curves. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2203_06009 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Explicit isogenies of prime degree over number fields Banwait, Barinder S. Derickx, Maarten Number Theory 11G05 (primary), 11Y60, 11G15 (secondary) We provide an explicit and algorithmic version of a theorem of Momose classifying isogenies of prime degree of elliptic curves over number fields, which we implement in Sage and PARI/GP. Combining this algorithm with recent work of Box-Gajović-Goodman we determine the first instances of isogenies of prime degree for cubic number fields, as well as for several quadratic fields not previously known. While the correctness of the general algorithm relies on the Generalised Riemann Hypothesis, the algorithm is unconditional for the restricted class of semistable elliptic curves. |
| title | Explicit isogenies of prime degree over number fields |
| topic | Number Theory 11G05 (primary), 11Y60, 11G15 (secondary) |
| url | https://arxiv.org/abs/2203.06009 |