https://bugzilla.redhat.com/show_bug.cgi?id=1282132
Bug ID: 1282132
Summary: Review Request: gap-pkg-gpd - Groupoids, group graphs,
and groupoid graphs
Product: Fedora
Version: rawhide
Component: Package Review
Severity: medium
Priority: medium
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
CC: [email protected]
Spec URL: https://jjames.fedorapeople.org/gap-pkg-gpd/gap-pkg-gpd.spec
SRPM URL:
https://jjames.fedorapeople.org/gap-pkg-gpd/gap-pkg-gpd-1.34-1.fc24.src.rpm
Fedora Account System Username: jjames
Description: The Gpd package provides functions for computation with finite
groupoids and their morphisms.
The first part is concerned with the standard constructions for connected
groupoids, and for groupoids with more than one component. Groupoid morphisms
are also implemented, and recent work includes the implementation of
automorphisms of a finite, connected groupoid: by permutation of the objects;
by automorphism of the root group; and by choice of rays to each object. The
automorphism group of such a groupoid is also computed, together with an
isomorphism of a quotient of permutation groups.
The second part implements graphs of groups and graphs of groupoids. A graph of
groups is a directed graph with a group at each vertex and with isomorphisms
between subgroups on each arc. This construction enables normal form
computations for free products with amalgamation, and for HNN extensions, when
the vertex groups come with their own rewriting systems.
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