#19011: Add Jones representation of braid groups and Jones polynomials of braid
closures
-------------------------------------+-------------------------------------
Reporter: fuglede | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.9
Component: algebraic | Resolution:
topology | Merged in:
Keywords: | Reviewers:
Authors: Søren Fuglede | Work issues:
Jørgensen | Commit:
Report Upstream: N/A | 8202cf5754bcecd608e1dfb2c189eb7846febb6c
Branch: | Stopgaps:
u/fuglede/jones_rep |
Dependencies: |
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Comment (by mmarco):
BTW, even if some complicated conversions need to be done, .subs is still
slow compared to direct call:
{{{
sage: %time f(1/(a+1))
CPU times: user 0 ns, sys: 0 ns, total: 0 ns
Wall time: 450 µs
sage: %time f(a)
CPU times: user 1e+03 µs, sys: 0 ns, total: 1e+03 µs
Wall time: 476 µs
}}}
Note that the first one gives as result an element of the fraction field
of S.
--
Ticket URL: <http://trac.sagemath.org/ticket/19011#comment:21>
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