SgpDec
Hierarchical Composition and
Decomposition of Permutation Groups and Transformation
Semigroups
News
SgpDec is switching to GAP 4.5. The last SgpDec release for GAP 4.4
is sgpdec-0.5.38.
Therefore the development version (svn repository) works only with
the upcoming release (the beta release can be downloaded from here).
Also, a new package dependency is introduced Citrus,
replacing Monoid. These changes make the installation of SgpDec
slightly more challenging, but once GAP 4.5 is out, everything will
be back to normal.
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Related papers, drafts
Lagrange decomposition
Simple composition examples
On
the Skeleton of a Transformation Semigroup
Holonomy decomposition of a small automaton (cascaded automaton,
tiling picture, original automaton):
