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Module isoclass

Module isoclass 

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Isomorphism class functions (ALGO-MO-004).

Counterpart of igraph_isoclass, igraph_isoclass_subgraph, and igraph_isoclass_create in references/igraph/src/isomorphism/isoclasses.c.

Classifies small graphs into isomorphism classes via precomputed lookup tables. Two graphs have the same isoclass iff they are isomorphic.

Supported sizes:

  • Directed: 3 and 4 vertices (16 and 218 isoclasses respectively)
  • Undirected: 3, 4, and 5 vertices (4, 11, and 34 isoclasses)

Functionsยง

isoclass
Determines the isomorphism class of a graph.
isoclass_create
Creates the canonical representative graph of the given isomorphism class.
isoclass_subgraph
Determines the isomorphism class of a subgraph induced by the given vertices.