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A polynomial algorithm determining cyclic vertex connectivity of 4-regular graphs

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For a connected graph G, a set S of vertices is a cyclic vertex cutset if $$G - S$$G-S is not connected and at least two components of $$G-S$$G-S contain… Click to show full abstract

For a connected graph G, a set S of vertices is a cyclic vertex cutset if $$G - S$$G-S is not connected and at least two components of $$G-S$$G-S contain a cycle respectively. The cyclic vertex connectivity $$c \kappa (G)$$cκ(G) is the cardinality of a minimum cyclic vertex cutset. In this paper, for a 4-regular graph G with v vertices, we give a polynomial time algorithm to determine $$c \kappa (G)$$cκ(G) of complexity $$O(v^{15/2})$$O(v15/2).

Keywords: algorithm determining; polynomial algorithm; vertex connectivity; cyclic vertex; determining cyclic

Journal Title: Journal of Combinatorial Optimization
Year Published: 2019

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