Drawing Pfaffian Graphs
Norine, Serguei (2004) Drawing Pfaffian Graphs. In: Graph Drawing 12th International Symposium, GD 2004, September 29-October 2, 2004, New York, NY, USA , pp. 371-376 (Official URL: http://dx.doi.org/10.1007/978-3-540-31843-9_37).
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We prove that a graph is Pfaffian if and only if it can be drawn in the plane (possibly with crossings) so that every perfect matching intersects itself an even number of times.
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