#8649: to_tableau method broken for crystals of type B
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Reporter: aschilling | Owner: sage-combinat
Type: defect | Status: positive_review
Priority: major | Milestone: sage-4.4
Component: combinatorics | Keywords: crystals
Author: Anne Schilling | Upstream: N/A
Reviewer: Dan Bump | Merged:
Work_issues: |
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Comment(by bump):
I wrote:
> My conclusion is that the patch is correct and fixes a bad book. It
should be merged.
I meant a bad *bug*.
Replying to Nicolas:
It was news to me that Type B tableaux (which were first invented I think
by Kashiwara) do not have to be column strict when 0 is involved. That is,
Type A tableaux are the classical ones and every column is strict. It
looks to me as if there actually is something different about 0.
I don't understand this as a mathematical point, but I did enough testing
that I am sure
the patch is right.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8649#comment:4>
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