#15456: fix bug in has_right/left_descents in Weyl group code
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Reporter: | Owner:
zabrocki | Status: needs_review
Type: | Milestone: sage-6.2
defect | Resolution:
Priority: major | Merged in:
Component: | Reviewers:
combinatorics | Work issues:
Keywords: | Commit:
Authors: | 549f238c87e446116457d645c2b0171b423c02df
Frédéric Chapoton | Stopgaps:
Report Upstream: N/A |
Branch: |
u/chapoton/15456 |
Dependencies: |
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Comment (by zabrocki):
I couldn't find an indication that the documentation specifies that at
least one of has_descent / has_right_descent / has_left_descent should be
implemented.
Instead it seems to be that the default implementation of `has_descent`
calls `has_left`or`right_descent`
Maybe we should throw checks in `_test_has_descent` to ensure that all of
the functions work.
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Ticket URL: <http://trac.sagemath.org/ticket/15456#comment:15>
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