#18895: Add support for general c_{ij} for Nakajima monomials and some cleanup
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Reporter: tscrim | Owner: sage-combinat
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-7.2
Component: combinatorics | Resolution:
Keywords: crystals, | Merged in:
nakajima monomials | Reviewers:
Authors: Travis Scrimshaw | Work issues:
Report Upstream: N/A | Commit:
Branch: | aab22d3f3f48ef63cb46cb3d5c401b2c790af86f
public/crystals/general_c_monomial-18895| Stopgaps:
Dependencies: |
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Changes (by tscrim):
* status: new => needs_review
* branch: => public/crystals/general_c_monomial-18895
* milestone: sage-6.8 => sage-7.2
* commit: => aab22d3f3f48ef63cb46cb3d5c401b2c790af86f
Old description:
> With the changes on #18453, computing the weight of an element of the
> monomial crystals has become slow. This ticket aims to speed it up and do
> some other miscellaneous cleanups.
New description:
The definition allows a choice of a general c,,ij,, matrix such that
c,,ij,, + c,,ji,, = 1 for all `i != j`.
We also perform some cleanup:
- Remove the trailing whitespace at the end of the monomial printing.
- Only needing to input the dominant weight.
- Better handling of dictionaries in monomial methods.
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Comment:
I am recycling this ticket because I couldn't improve the weight function.
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New commits:
||[http://git.sagemath.org/sage.git/commit/?id=aab22d3f3f48ef63cb46cb3d5c401b2c790af86f
aab22d3]||{{{Adding support for general c_{ij} and some cleanup.}}}||
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Ticket URL: <http://trac.sagemath.org/ticket/18895#comment:1>
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