Embedding Quartic Eulerian Digraphs on the Plane [article]

Dan Archdeacon, Paul Bonnington, Bojan Mohar
2017 arXiv   pre-print
Minimal obstructions for embedding 4-regular Eulerian digraphs on the plane are considered in relation to the partial order defined by the cycle removal operation. Their basic properties are provided and all obstructions with parallel arcs are classified.
arXiv:1706.02896v1 fatcat:xwe6l42x3jaztf35galjc3sjry