#7983: Notion of descent/major index in tableau.py is not mathematically
standard
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Reporter: jbandlow | Owner: sage-combinat
Type: defect | Status: needs_review
Priority: major | Milestone:
Component: combinatorics | Resolution:
Keywords: combinat, tableaux | Work issues:
Report Upstream: N/A | Reviewers: jbandlow
Authors: arattan, Darij Grinberg | Merged in:
Dependencies: #8392 | Stopgaps:
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Comment (by darij):
Hi Anne,
good point, thanks -- I've added the reference to Haiman, and also a
better reference (Sagan's cyclic sieving paper) for the conflicting
notation. If you agree, the Stanley reference can be removed (he defines
promotion for linear extensions of posets, then claiming that this
obviously defines it for tableaux -- this isn't really central to the
paper, though).
In other news, I've added documentation to {{{insert_word}}}, slightly
improved that of {{{catabolism}}} and {{{lambda_catabolism}}}, and fixed a
couple more typos. Since I don't know anything about catabolism, can you
tell me if it's OK that {{{catabolism_sequence(Tableau([]))}}} does not
terminate? I'm hesitating to call it a bug as long as I don't know if this
should be defined at all for an empty tableau.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7983#comment:12>
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