#21112: wrong base ring in sigma_invariants
-------------------------------------+-------------------------------------
Reporter: bhutz | Owner:
Type: defect | Status: needs_work
Priority: minor | Milestone: sage-7.3
Component: algebraic | Resolution:
geometry |
Keywords: | Merged in:
Authors: Ben Hutz | Reviewers:
Report Upstream: N/A | Work issues:
Branch: u/bhutz/sigma_bug | Commit:
| a41d7397734bf0bc2538ba81a8e80cc0721326d7
Dependencies: | Stopgaps:
-------------------------------------+-------------------------------------
Changes (by mmanes):
* status: needs_review => needs_work
Comment:
Returns "NameError: global name 'NonImplementedError' is not defined" for
morphisms of higher dimensional projective spaces.
{{{
R.<t> = QQ[]
K.<a> = NumberField(t^2-2)
P.<x,y,z> = ProjectiveSpace(K,2)
H = End(P)
f = H([x^2, y^2, x*y])
f.sigma_invariants(1)
}}}
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Ticket URL: <https://trac.sagemath.org/ticket/21112#comment:3>
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