We give a characterization of pfaffian graphs in terms of even orientations, extending the characterization of near bipartite non-pfaffian graphs by Fischer and Little. Our graph theoretical characterization is equivalent to the one proved by Little using linear algebra arguments.
Even orientations and pfaffian graphs
M. Abreu;D. Labbate;
2022-01-01
Abstract
We give a characterization of pfaffian graphs in terms of even orientations, extending the characterization of near bipartite non-pfaffian graphs by Fischer and Little. Our graph theoretical characterization is equivalent to the one proved by Little using linear algebra arguments.File in questo prodotto:
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