#9806: Constellations
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Reporter: vdelecroix | Owner: vdelecroix
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.10
Component: combinatorics | Resolution:
Keywords: constellation, | Merged in:
permutation, surfaces, graphs | Reviewers:
Authors: vdelecroix | Work issues: documentation
Report Upstream: N/A | Commit:
Branch: u/chapoton/9806 | 6fdb21b48ffbf3c6edc47c0c7fee84f9c4f25859
Dependencies: | Stopgaps:
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Description changed by chapoton:
Old description:
> A constellation is a combinatorial description (via elements of the
> symmetric group) of graphs embedded in surfaces (also called G-map). This
> ticket aims to implement a basic class for it with:
> * fast data type
> * normal form and isomorphism test
> * action of the braid group
> * enumeration/generation with constraints
>
> Apply:
>
> * [attachment:trac_9806-constellations-all_in_one-vdfc.patch]
> * [attachment:trac_9806_review_fc.patch]
> * [attachment:trac_9806_doc_canonical_labels-vd.patch]
New description:
A constellation is a combinatorial description (via elements of the
symmetric group) of graphs embedded in surfaces (also called G-map). This
ticket aims to implement a basic class for it with:
* fast data type
* normal form and isomorphism test
* action of the braid group
* enumeration/generation with constraints
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Ticket URL: <http://trac.sagemath.org/ticket/9806#comment:45>
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