#9052: Hasse invariant for elliptic curves
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Reporter: voloch | Owner: cremona
Type: enhancement | Status: positive_review
Priority: minor | Milestone: sage-4.4.3
Component: elliptic curves | Keywords: Hasse invariant
Author: Felipe Voloch | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by cremona):
The first two patches apply fine and tests pass. I added a review patch
which beefs up the docstring a little, adds some more examples (including
one over a non-prime field), and also added one-liners for characteristics
5 and 7.
Strictly this should be looked at again (William?), but I don't seem to
have the option of marking it as "needs review" again. In case you are
wondering about the char. 5,7 cases, as well as doing the math I also
systematically checked that this gives the same as the general method for
*all* curves over GF(5) and GF(7)!
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9052#comment:4>
Sage <http://www.sagemath.org>
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