#20154: train-tracks
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Reporter: dbenielli | Owner:
Type: task | Status: needs_review
Priority: major | Milestone: sage-7.3
Component: group theory | Resolution:
Keywords: free-group | Merged in:
automorphism | Reviewers:
Authors: Dominique | Work issues:
Benielli, Thierry Coulbois | Commit:
Report Upstream: N/A | d35c1d2fcbb626332e8ad15a1fc98441edb4b0aa
Branch: public/train- | Stopgaps:
track |
Dependencies: |
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Comment (by vdelecroix):
Hello Dominique, Thierry,
There are two current problems (see the failing doctests of patchbot):
- the comparison between elements of the free group changed. Before we had
the following order on generators `x_0^-1`, `x_0`, `x_1^-1`, `x_1`, ...
But with your branch, because you use direct comparison on the Tietze
generators, it became `x_n^-1`, `x_{n-1}^-1`, ..., `x_0^-1`, `x_0`, `x_1`,
..., I think the former was preferable. What do you think?
- there are a lot of failure related to the `free_group.py` being moved.
You just need to change the occurrence of `sage.groups.free_group` by
`sage.groups.free_groups.free_group` everywhere.
--
Ticket URL: <http://trac.sagemath.org/ticket/20154#comment:55>
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