#15843: Add reduced Burau representation, Alexander polynomial to Braid
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Reporter: lipshitz | Owner:
Type: enhancement | Status: needs_review
Priority: minor | Milestone: sage-6.2
Component: algebra | Resolution:
Keywords: Braid, braid | Merged in:
group, Burau representation, | Reviewers:
Alexander polynomial, knot theory | Work issues:
Authors: Robert Lipshitz | Commit:
Report Upstream: N/A | 4fdf5b936657a25e8840d5e49b4ebf1f59b64bbc
Branch: u/chapoton/15843 | Stopgaps:
Dependencies: |
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Changes (by chapoton):
* commit: bec075f7b708d1856750eebe835b5d2cd1d0d33b =>
4fdf5b936657a25e8840d5e49b4ebf1f59b64bbc
* branch: u/lipshitz/ticket/15843 => u/chapoton/15843
Comment:
I have made a few modifications. This is still not good, as one would like
the result of `alexander_polynomial` to be a Laurent polynomial, and not a
fraction.
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New commits:
||[http://git.sagemath.org/sage.git/commit/?id=f71a95f5ec112ac9c3327e6366af4a277addec16
f71a95f]||{{{Added reduced Burau representation, Alexander polynomial to
Braid class.}}}||
||[http://git.sagemath.org/sage.git/commit/?id=f75139b602b395dc12ae56ebe8931edc11c01fb6
f75139b]||{{{trac #15843 details, minor changes}}}||
||[http://git.sagemath.org/sage.git/commit/?id=d57585227064a2361277a5190b4016d38a217e71
d575852]||{{{trac #15843 make sure tests pass}}}||
||[http://git.sagemath.org/sage.git/commit/?id=4fdf5b936657a25e8840d5e49b4ebf1f59b64bbc
4fdf5b9]||{{{trac #15843 remove unused imports}}}||
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Ticket URL: <http://trac.sagemath.org/ticket/15843#comment:4>
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