#15959: The hash function of combinatorial free module elements should depend on
the parent
-------------------------------------+-------------------------------------
Reporter: nthiery | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.2
Component: linear algebra | Resolution:
Keywords: | Merged in:
Authors: Travis Scrimshaw | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/tscrim/kyoto_fix-15959 | 7bdb017e3e37d52a89d29e262d0b96f3fe831b48
Dependencies: #15931 | Stopgaps:
-------------------------------------+-------------------------------------
Changes (by {'newvalue': u'Travis Scrimshaw', 'oldvalue': ''}):
* commit: => 7bdb017e3e37d52a89d29e262d0b96f3fe831b48
* dependencies: => #15931
* branch: => u/tscrim/kyoto_fix-15959
* author: => Travis Scrimshaw
Comment:
I haven't merged in the latest #15931, but instead started with the
a2bbe7f297 commit. The fix for the Kyoto path model is that I was passing
in elements of the weight space, whereas the `Epsilon()/Phi()` methods
returned an element of the weight lattice. I've added an additional check
for robustness.
----
New commits:
||[http://git.sagemath.org/sage.git/commit/?id=e8fe5eb8943debdb457c38d3264167d66e7b2b14
e8fe5eb]||{{{Trac 15931: implement a proper hash function for
(combinatorial) free module elements}}}||
||[http://git.sagemath.org/sage.git/commit/?id=e6ef605116edd69eb8630d80fc731eeae0316a25
e6ef605]||{{{Trac 15931: add a @cached_method on the new hash function for
(combinatorial) free module elements}}}||
||[http://git.sagemath.org/sage.git/commit/?id=a2bbe7f297caeb73bda1f8ce31af9ee21b90a26b
a2bbe7f]||{{{Trac 15931: include the hash of the parent in the new hash
function for (combinatorial) free module elements}}}||
||[http://git.sagemath.org/sage.git/commit/?id=13be6205f2aeaa0dd6658f96286f5eafbc99addf
13be620]||{{{Merge branch 'develop' into test/15959}}}||
||[http://git.sagemath.org/sage.git/commit/?id=7bdb017e3e37d52a89d29e262d0b96f3fe831b48
7bdb017]||{{{Fix for Kyoto path model with hash depending on the
parent.}}}||
--
Ticket URL: <http://trac.sagemath.org/ticket/15959#comment:4>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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