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Niloufar Fuladi, Cross-cap drawings and signed reversal distance
Niloufar Fuladi, Cross-cap drawings and signed reversal distance
A cross-cap drawing of a graph G is a drawing on the sphere with g distinct points, called cross-caps, such that the drawing is an embedding except at the cross-caps, where edges cross properly. A cross-cap drawing of a graph G with g cross-caps can be used to represent an embedding of G on a …