#9894: Group cohomology spkg, version 2.1
----------------------------------------------------------------------------+
Reporter: SimonKing |
Owner: tbd
Type: enhancement |
Status: needs_review
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: Is the code independent of the computer's newline character? |
----------------------------------------------------------------------------+
Comment(by kcrisman):
Replying to [comment:11 SimonKing]:
> Hi Karl-Dieter,
>
> There is also another way to potentially get more insight: Could you try
the computation in protocol mode, i.e., {{{H =
CohomologyRing(G,prime=2,GroupName='A8',options='prot')}}}? The last few
protocol lines before the error will probably help to locate the problem.
Cool documentation of what is going on! I removed the db stuff (but not
the folder) again, and got this before the same error (I assume that up to
here it is the same for you):
{{{
There is no new generator of H^*(SmallGroup(192,1493); GF(2)) in degree 7
Degree 7 of the visible ring structure of H^*(SmallGroup(192,1493);
GF(2)) is computed!
Saving H^*(SmallGroup(192,1493); GF(2))
We expect that the Hilbert-Poincare criterion will not apply before
degree 11
Start computation in Degree 8
All stable cocycles are decomposable
Determine degree 8 standard monomials of H^*(SmallGroup(192,1493);
GF(2))
Express 48 standard monomials as cocycles
> Interreduction
> Determining decomposable subspace
> Extracting relations
There is no new relation in degree 8
There is no new generator of H^*(SmallGroup(192,1493); GF(2)) in degree 8
Try to lift 1st power of 0th Dickson invariant
Determine degree 8 standard monomials of H^*(SmallGroup(192,1493);
GF(2))
Express 48 standard monomials as cocycles
> Interreduction
> Determining decomposable subspace
> Extracting decomposable cocycles and relations
---------------------------------------------------------------------------
IndexError Traceback (most recent call
last)
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9894#comment:19>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en.
