#13365: Add Semidirect Product Method for Permutation Groups
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Reporter: khalasz | Owner: joyner
Type: enhancement | Status: needs_work
Priority: minor | Milestone: sage-5.3
Component: group theory | Resolution:
Keywords: groups semidirect product GAP | Work issues: fix failing
doctests
Report Upstream: N/A | Reviewers: Benjamin
Jones
Authors: Kevin Halasz | Merged in:
Dependencies: | Stopgaps:
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Description changed by khalasz:
Old description:
> Adds a semidirect product method.
> A generic, top-level method is added to categories/groups.py, which
> simply raises a `NotImplementedError`. This is then overridden in
> permgroup.py. This method wraps GAP's `SemidirectProduct` function. It is
> implemented so that the calling group is the group acting on an inputted
> normal subgroup.
>
> '''Apply'''
> 1. [attachment: 13365_semidirectproduct-v2.patch]
New description:
Adds a semidirect product method.
A generic, top-level method is added to categories/groups.py, which simply
raises a `NotImplementedError`. This is then overridden in permgroup.py.
This method wraps GAP's `SemidirectProduct` function. It is implemented so
that the calling group is the group acting on an inputted normal subgroup.
'''Apply'''
1. [attachment: 13365_semidirectproduct-v2.1.patch]
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13365#comment:14>
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