Article ID Journal Published Year Pages File Type
4649337 Discrete Mathematics 2009 10 Pages PDF
Abstract

A 2-walk is a closed spanning trail which uses every vertex at most twice. A graph is said to be chordal if each cycle different from a 3-cycle has a chord. We prove that every chordal planar graph GG with toughness t(G)>34 has a 2-walk.

Keywords
Related Topics
Physical Sciences and Engineering Mathematics Discrete Mathematics and Combinatorics
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