#20419: Fix type recognition of Coxeter matrix
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Reporter: tscrim | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-7.2
Component: combinatorics | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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We have type A -> B -> G:
{{{
sage: M = CoxeterMatrix(['A',2])
sage: CoxeterMatrix(matrix(M)).coxeter_type()
Coxeter type of ['B', 2]
sage: M = CoxeterMatrix(['B',2])
sage: CoxeterMatrix(matrix(M)).coxeter_type()
Coxeter type of ['G', 2]
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/20419>
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