#12339: Free Groups
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Reporter: mmarco | Owner: joyner
Type: enhancement | Status: needs_work
Priority: minor | Milestone:
Component: group theory | Resolution:
Keywords: free groups | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Miguel Marco | Merged in:
Dependencies: | Stopgaps:
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Comment (by mmarco):
Added patches 12339-minor.patch and 12339-cmp.patch. They solve an issue
with left normal form, and adds comparison of braids.
All doctests passed, but the testuite fails in pickling (no clue about how
to solve it, i think its a problem with gap objects).
As an experiment, i have also added a 16192.patch to make this work with
libgap. It deppends on #6391. To make it work, apply #6391, and
16190.patch and then 16192.patch. It works much faster, but there are two
problems related to libgap: random segfaults occur, and libgap doesn't
handle the simplification isomorphism for finite presentations.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12339#comment:11>
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