#9894: Group cohomology spkg, version 2.1
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Reporter: SimonKing | Owner: tbd
Type: enhancement | Status: new
Priority: major | Milestone: sage-4.6
Component: optional packages | Keywords: modular group cohomology
solaris t2
Author: Simon King | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by SimonKing):
Hi!
Thank you for testing!
I found this error particularly interesting, at the very end of the file
{{{
sage: H.sylow_cohomology().Dickson
Expected:
['-b_2_0^6 - b_2_2^6 - b_2_2^2*b_4_6^2 + b_2_2^3*c_6_11 + b_4_6^3',
None]
Got:
['b_4_6^3-b_2_2^2*b_4_6^2-b_2_2^6-b_2_0^6+b_2_2^3*c_6_11', None]
}}}
What you got is, as much as I see, the result that you would get when
computing {{{H.sylow_cohomology()}}} from scratch. But in fact it is
expected that {{{H.sylow_cohomology()}}} is automatically downloaded from
a web repository, containing cohomology rings that were computed with an
old version of the package and thus have equivalent data (note that the
polynomials above are equal) presented in a different form.
Could it be that you worked without internet connection? At least, it
would explain that particular error.
Often there is a "list index out of range" in
{{{MODCOHO.find_relations}}}. This one is a bit obscure to me at the
moment. Can you try one of these examples manually and post the full
traceback?
There is one error in "BarCode.show"; I have seen this on OS X before, but
this seems to be a problem with "show" on OS X in general.
Could you please post the ''entire'' log? It seems that you cut off too
much. E.g., I can not see how {{{COCH.massey_power}}} fails.
Best regards,
Simon
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9894#comment:2>
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