#19594: Implement the cactus group
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Reporter: tscrim | Owner: tscrim
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-7.0
Component: group theory | Resolution:
Keywords: cactus | Merged in:
Authors: Travis Scrimshaw | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
public/groups/cactus_group-19594 | 7eb2a1278ea0ca08375f87e0f82081218a2ea1ec
Dependencies: | Stopgaps:
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Comment (by dimpase):
Replying to [comment:16 darij]:
> Sorry, Travis, you are right with your worries:
> {{{
> sage: s45*s13 == s13*s45
> True
> sage: s26*s45*s13 == s26*s13*s45
> False
> }}}
> This cactus is thornier than I thought.
this is also what Knuth-Bendix computation was predicting, that for n>4
things get hard.
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Ticket URL: <http://trac.sagemath.org/ticket/19594#comment:17>
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