#15843: Add reduced Burau representation, Alexander polynomial to Braid
-------------------------------------+-------------------------------------
Reporter: lipshitz | Owner:
Type: enhancement | Status: needs_work
Priority: minor | Milestone: sage-6.2
Component: algebra | Resolution:
Keywords: Braid, braid | Merged in:
group, Burau representation, | Reviewers: Frédéric Chapoton,
Alexander polynomial, knot theory | Travis Scrimshaw
Authors: Robert Lipshitz | Work issues:
Report Upstream: N/A | Commit:
Branch: u/chapoton/15843 | 97dd45c03c2fdb2433e3f8a9f1bd8a7ebad84e65
Dependencies: | Stopgaps:
-------------------------------------+-------------------------------------
Changes (by vbraun):
* status: positive_review => needs_work
Comment:
{{{
sage -t src/sage/algebras/quaternion_algebra.py
**********************************************************************
File "src/sage/algebras/quaternion_algebra.py", line 12, in
sage.algebras.quaternion_algebra.unpickle_QuaternionAlgebra_v0
Failed example:
f, t = Q.__reduce__()
Exception raised:
Traceback (most recent call last):
File "/home/release/Sage/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 480, in _run
self.execute(example, compiled, test.globs)
File "/home/release/Sage/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 839, in execute
exec compiled in globs
File "<doctest
sage.algebras.quaternion_algebra.unpickle_QuaternionAlgebra_v0[1]>", line
1, in <module>
f, t = Q.__reduce__()
ValueError: too many values to unpack
**********************************************************************
File "src/sage/algebras/quaternion_algebra.py", line 14, in
sage.algebras.quaternion_algebra.unpickle_QuaternionAlgebra_v0
Failed example:
sage.algebras.quaternion_algebra.unpickle_QuaternionAlgebra_v0(*t)
Exception raised:
Traceback (most recent call last):
File "/home/release/Sage/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 480, in _run
self.execute(example, compiled, test.globs)
File "/home/release/Sage/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 839, in execute
exec compiled in globs
File "<doctest
sage.algebras.quaternion_algebra.unpickle_QuaternionAlgebra_v0[3]>", line
1, in <module>
sage.algebras.quaternion_algebra.unpickle_QuaternionAlgebra_v0(*t)
NameError: name 't' is not defined
**********************************************************************
1 item had failures:
2 of 5 in
sage.algebras.quaternion_algebra.unpickle_QuaternionAlgebra_v0
[4 tests, 2 failures, 0.01 s]
----------------------------------------------------------------------
sage -t src/sage/algebras/quaternion_algebra.py # 2 doctests failed
----------------------------------------------------------------------
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/15843#comment:12>
Sage <http://www.sagemath.org>
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