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On the Decomposition of a 3-Connected Graph into Cyclically 4-Edge-Connected Components


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Abstract

A graph is called cyclically 4-edge-connected if removing any three edges from it results in a graph in which at most one connected component contains a cycle. A 3-connected graph is 4-edge-connected if and only if removing any three edges from it results in either a connected graph or a graph with exactly two connected components one of which is a single-vertex one. We show how to associate with any 3-connected graph a tree of components such that every component is a 3-connected and cyclically 4-edge-connected graph.

About the authors

A. V. Pastor

St.Petersburg Department of Steklov Institute of Mathematics and Peter the Great St.Petersburg Polytechnic University

Author for correspondence.
Email: pastor@pdmi.ras.ru
Russian Federation, St.Petersburg

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