Sparse6 (.g6) Graph Format
Sparse6 file format
Sparse6 is a text-based file format for storing one or more undirected graphs.
This format supports directed and undirected graphs, which may include self-loops and multiple edges.
The GraphTheory[ImportGraph] and GraphTheory[ExportGraph] commands can read from and write to this format.
The general-purpose commands Import and Export also support this format.
Import a Sparse6 file encoding the Petersen graph.
Petersen ≔ Import⁡example/petersen.s6,base=datadir
Petersen≔Graph 1: an undirected graph with 10 vertices and 15 edge(s)
McKay, B.D. and Piperno, A., Practical Graph Isomorphism, II, Journal of Symbolic Computation, 60 (2014), pp. 94-112, doi:10.1016/j.jsc.2013.09.003
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