Article ID Journal Published Year Pages File Type
4647755 Discrete Mathematics 2012 12 Pages PDF
Abstract

A graph is pseudo-outerplanar   if each block has an embedding on the plane in such a way that the vertices lie on a fixed circle and the edges lie inside the disk of this circle with each of them crossing at most one another. In this paper, we prove that each pseudo-outerplanar graph admits edge decompositions into a linear forest and an outerplanar graph, or a star forest and an outerplanar graph, or two forests and a matching, or max{Δ(G),4}max{Δ(G),4} matchings, or max{⌈Δ(G)/2⌉,3}max{⌈Δ(G)/2⌉,3} linear forests. These results generalize known results on outerplanar graphs and K2,3K2,3-minor-free graphs, since the class of pseudo-outerplanar graphs is larger than the class of K2,3K2,3-minor-free graphs.

Related Topics
Physical Sciences and Engineering Mathematics Discrete Mathematics and Combinatorics
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