#11095: Add BMSS algorithm for isogenies of elliptic curves
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Reporter: defeo | Owner: cremona
Type: enhancement | Status: needs_work
Priority: minor | Milestone: sage-4.7.1
Component: elliptic curves | Keywords: isogenies
Work_issues: | Upstream: N/A
Reviewer: John Cremona | Author: Luca De Feo
Merged: | Dependencies:
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Comment(by cremona):
Over a finite field theer are always *lots* of isogeny degrees between any
two isogenous curves. For ordinary curves the set of degrees is the set
of all positive integers represented by a ceratin positive definite
quadratic form; for supersingular curves every degree except a finite
number are possible (see Kohel's thesis).
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11095#comment:14>
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