Opened 9 years ago
Last modified 4 years ago
#9391 new defect
kolyvagin_cohomology_class() method differs from doc
Reported by: | justin | Owned by: | cremona |
---|---|---|---|
Priority: | major | Milestone: | |
Component: | elliptic curves | Keywords: | kolyvagin classes |
Cc: | Merged in: | ||
Authors: | Justin Walker | Reviewers: | |
Report Upstream: | N/A | Work issues: | |
Branch: | Commit: | ||
Dependencies: | Stopgaps: |
Description (last modified by )
If P is a 'kolyvagin_point' created from an elliptic curve, the doc string says
Definition: P.kolyvagin_cohomology_class(self, n=None) Docstring: INPUT: * n -- positive integer that divides the gcd of a_p and p+1 for all p dividing the conductor. If n is None, choose the largest valid n.
In fact, if "n" is None, a ValueError? is thrown.
Change History (2)
comment:1 Changed 5 years ago by
comment:2 Changed 4 years ago by
- Description modified (diff)
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The problem happens when the conductor is 1.
This is because the gcd of the empty list is 0. I do not know what to do to solve the issue.