#9806: Constellations
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Reporter: vdelecroix | Owner:
Type: enhancement | vdelecroix
Priority: major | Status:
Component: combinatorics | needs_review
Keywords: constellation, permutation, | Milestone: sage-5.13
surfaces, graphs | Resolution:
Authors: vdelecroix | Merged in:
Report Upstream: N/A | Reviewers:
Branch: | Work issues:
Dependencies: | documentation
| Commit:
| Stopgaps:
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Description changed by vdelecroix:
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]
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
Apply:
* [attachment:trac_9806-constellations-all_in_one-vdfc.patch]
* [attachment:trac_9806_review_fc.patch]
* [attachment:trac_9806_doc_canonical_labels-vd.patch]
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Ticket URL: <http://trac.sagemath.org/ticket/9806#comment:31>
Sage <http://www.sagemath.org>
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