#17798: Create a class for Coxeter matrices and types
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Reporter: tscrim | Owner: sage-combinat
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.6
Component: group theory | Resolution:
Keywords: Coxeter, groups, | Merged in:
matrices, types | Reviewers:
Authors: Travis Scrimshaw | Work issues:
Report Upstream: N/A | Commit:
Branch: | e61a4f3927c1d096f8ece1138ed33abbd928594d
public/combinat/coxeter_matrices-17798| Stopgaps:
Dependencies: |
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Comment (by jipilab):
In view of the tickets #15703, #16126, tt would be very good to include
the possibility to have "generalized" Coxeter matrices.
The "generalized" means that for the infinite labels, we can put a real
number <= -1 in the matrix.
Of course, this may be not so natural to have Coxeter matrices with such
entries, but this will make life much much easier for the other tickets:
being able to start with a matrix which encodes the "geometry" behind the
matrix.
Ticket #16126 should be kind of parallel to this one.
If you think it is a good idea, I would try take the patch from here and
make it possible to into such values.
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Ticket URL: <http://trac.sagemath.org/ticket/17798#comment:8>
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