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Chromatic Sums of Singular Maps on the Projective Plane and the Torus
Author(s): 
Pages: 10-16
Year: Issue:  3
Journal: OPERATIONS RESEARCH TRANSACTIONS

Keyword:  Operation researchsingular mapsurfaceChromatic sum;
Abstract: A map is singular if each edge is on the same face on a surface(i.e., those have only one face on a surface). Because any map with loop is not colorable, all maps here are assumed to be loopless. In this paper we present the chromatic enumeration for rooted singular maps on the projective plane and the torus.
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