#11930: function to check if hyperelliptitc curve is singular in the sense of
hyperelliptic curves
-------------------------------+--------------------------------------------
Reporter: dkrenn | Owner: cremona
Type: enhancement | Status: needs_review
Priority: minor | Milestone: sage-4.8
Component: elliptic curves | Keywords: hyperelliptic curve, singular
Work_issues: | Upstream: N/A
Reviewer: | Author: Daniel Krenn
Merged: | Dependencies:
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Comment(by mstreng):
The cause is of course the computationally convenient, but mathematically
inaccurate, ambient space. The curve is smooth and projective, but not in
{{{P^2}}}:
{{{
sage: R.<x> = GF(3)[]
sage: H = HyperellipticCurve(x^5+1)
sage: H.ambient_space()
Projective Space of dimension 2 over Finite Field of size 3
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11930#comment:5>
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