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A way to construct independence equivalent graphs
Authors:Hailiang Zhang
Institution:Department of Mathematics of East China Normal University, ShangHai, 200241, People’s Republic of China;Department of Mathematics, Taizhou University, Linhai Zhejiang 317000, People’s Republic of China
Abstract:Let us denote the independence polynomial of a graph by IG(x). If IG(x)=IH(x) implies that G?H then we say G is independence unique. For graph G and H if IG(x)=IH(x) but G and H are not isomorphic, then we say G and H are independence equivalent. In 7], Brown and Hoshino gave a way to construct independent equivalent graphs for circulant graphs. In this work we give a way to construct the independence equivalent graphs for general simple graphs and obtain some properties of the independence polynomial of paths and cycles.
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