Ticket #11540 (closed enhancement: fixed)

Opened 2 years ago

Last modified 22 months ago

Make elliptic curve reduction consistent with has_good_reduction

Reported by: mderickx Owned by: cremona
Priority: major Milestone: sage-4.7.2
Component: elliptic curves Keywords: Reduction of elliptic curves
Cc: Work issues:
Report Upstream: N/A Reviewers: Chris Wuthrich
Authors: Maarten Derickx Merged in: sage-4.7.2.alpha2
Dependencies: Stopgaps:

Description (last modified by wuthrich) (diff)

for more info see:  https://groups.google.com/forum/#!topic/sage-nt/91msjosvJuA

This patch changes the behaviour of the reduction of an elliptic curve over a number field. Now, it will always cahnge to a minimal model and then give back its special fibre if the reduction is good.

Attachments

ec-reduction-inconsistencie.patch Download (2.9 KB) - added by mderickx 2 years ago.

Change History

comment:1 Changed 2 years ago by mderickx

  • Status changed from new to needs_review

Changed 2 years ago by mderickx

comment:2 Changed 22 months ago by wuthrich

  • Keywords Reduction of elliptic curves added
  • Reviewers set to Chris Wuthrich
  • Status changed from needs_review to positive_review
  • Description modified (diff)

comment:3 Changed 22 months ago by jdemeyer

  • Status changed from positive_review to closed
  • Resolution set to fixed
  • Merged in set to sage-4.7.2.alpha2
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