#11930: function to check if hyperelliptic curve is singular in the sense of
hyperelliptic curves
------------------------------------------------------------+---------------
Reporter: dkrenn | Owner:
cremona
Type: enhancement | Status:
needs_work
Priority: minor | Milestone:
sage-4.8
Component: elliptic curves | Keywords:
hyperelliptic curve, singular, sd35
Work_issues: make resultants work for more general fields | Upstream:
N/A
Reviewer: Marco Streng, Damiano Testa | Author:
Daniel Krenn, Marco Streng, Damiano Testa
Merged: | Dependencies:
------------------------------------------------------------+---------------
Comment(by zimmerma):
Marco, I tried to apply this patch to 4.7.2 (this is needed to check
#11800).
However the example in the description still fails:
{{{
----------------------------------------------------------------------
| Sage Version 4.7.2, Release Date: 2011-10-29 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
Loading Sage library. Current Mercurial branch is: 11800
sage: R.<x> = PolynomialRing(GF(3))
sage: H=HyperellipticCurve(x^5+1)
sage: H.is_singular()
True
}}}
Paul
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11930#comment:12>
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