#9437: special linear group over finite rings
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Reporter: vdelecroix | Owner: AlexGhitza
Type: defect | Status: new
Priority: major | Milestone:
Component: algebra | Keywords: group, matrix, special linear
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Sage is not able to work with special linear group over finite rings (for
example iterate over its element). As in the following example, the
constructor accept the argument Zmod(4). But the object is not able to do
anything due to call to finite field in gap. Curiously, list(G) and
G.list() does not raise the same error (but both of them do).
{{{
sage: G = SL(2, Zmod(4))
sage: print G
sage: list(G)
TypeError Traceback (most recent call
last)
...
TypeError: variable names have not yet been set using
self._assign_names(...)
error coercing to finite field
sage: G.list()
NameError Traceback (most recent call
last)
NameError: name 'ZmodnZObj' is not defined
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9437>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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