#13089: Implement weighted projective spaces.
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Reporter: davideklund | Owner: AlexGhitza
Type: enhancement | Status: new
Priority: minor | Milestone: sage-5.1
Component: algebraic geometry | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: David Eklund | Merged in:
Dependencies: | Stopgaps:
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Comment (by novoselt):
Not all WPs are (singular) Fano and general toric varieties are handled by
PPL so there are no dimension limits.
If one of the weights is one, e.g. WP(1,1,4,6), then one can take for the
fan rays the standard basis plus "negative weights except for one 1", i.e.
(-1,-4,-6).
In general you take the standard basis of dimension+1 and quotient by the
weights. If this works - great, I just was not sure if there are still
problems with fans in quotient lattices in Sage - there were some but we
were gradually improving the situation.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13089#comment:5>
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