Hierarchical Decomposition of Semigroups

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A computer algebra package for hierarchical compositions and decompositions of permutation groups and transformation semigroups, with special emphasis on the explicit representation of the connection network, implemented in GAP www.gap-system.org.

Hierarchical Decomposition of Semigroups Web Site


  • Lagrange decomposition for permutation groups
  • Holonomy decomposition for transformation semigroups


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Additional Project Details

Intended Audience

Information Technology, Science/Research

User Interface

Console/Terminal, X Window System (X11)


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