#9267: Update the charge statistic on words
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Reporter: jbandlow | Owner: sage-combinat
Type: defect | Status: needs_review
Priority: major | Milestone: sage-4.5
Component: combinatorics | Keywords: words, charge, cocharge
Author: Jason Bandlow | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Changes (by newvalueoldvalue):
* status: new => needs_review
* author: => Jason Bandlow
Old description:
> The following behavior is currently in sage:
> {{{
> sage: w = Word([1,2,3,1,2])
> sage: w.charge()
> 0
> }}}
> This is inconsistent with the definition one usually finds in the
> literature, which would give the charge of this word as 2. (see
> Macdonald's book, for example).
>
> The goal of this ticket is to fix this bug, add a cocharge statistic, and
> extend the definition to words without partition content.
New description:
The following behavior is currently in sage:
{{{
sage: w = Word([1,2,3,1,2])
sage: w.charge()
0
}}}
This is inconsistent with the definition one usually finds in the
literature, which would give the charge of this word as 2. (see
Macdonald's book, for example).
The goal of this ticket is to fix this bug, add a cocharge statistic, and
extend the definition to words without partition content.
See [http://groups.google.com/group/sage-combinat-
devel/browse_thread/thread/e7c2fd6abb9dd6df this thread] on sage-combinat-
devel for discussion of this ticket.
--
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9267#comment:1>
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