#12630: Add representations of quivers and quiver algebras to sage
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Reporter: JStarx | Owner:
Type: enhancement | AlexGhitza
Priority: major | Status:
Component: algebra | needs_work
Keywords: algebra, quiver, module, | Milestone: sage-5.12
days49 | Resolution:
Authors: Jim Stark, Simon King, | Merged in:
Mathieu Guay-Paquet, Aladin Virmaux | Reviewers: Simon
Report Upstream: N/A | King
Branch: | Work issues:
Dependencies: #12412, #12413, #14806 | Commit:
| Stopgaps:
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Changes (by SimonKing):
* cc: ncohen (added)
Comment:
Hi Nathann!
I think you are the person to answer the questions I raised in my previous
post and on sage-combinat-devel:
- Are digraphs constructed with `data_structure="static_sparse"`
considered being immutable? If they are, shouldn't one set the attribute
`._immutable` to the graph, so that the hash won't complain about
mutability?
- Would it be OK from your perspective to add the methods for creation of
"free small category" (i.e., directed paths with concatenation), quiver
representations and quiver algebras to `DiGraph`? Or would you prefer that
we keep creating a sub-class `Quiver` of `DiGraph` providing these
methods?
--
Ticket URL: <http://trac.sagemath.org/ticket/12630#comment:126>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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