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On Balance Index Sets of L-Products with Cycles and Complete Graphs

Harris Kwong Sin-Min Lee1, Sheng-Ping Bill Lo Hsin-Hao Su2, Yung-Chin Wang3
1Dept. of Math. Sci. Dept. of Comp. Sci. SUNY at Fredonia San Jose State University Fredonia, NY 14063, USA San Jose, CA 95192, USA
2Cisco Systems, Inc. Department of Mathematics 170 West Tasman Drive Stonehill College San Jose, CA 95134, USA Easton, MA 02357, USA
3Dept. of Physical Therapy Tzu-Hui Institute of Technology Taiwan, Republic of China

Abstract

Let \( G \) be a graph with vertex set \( V \) and edge set \( E \). A labeling \( f : V \to \{0,1\} \) induces a partial edge labeling \( f^* : E \to \{0,1\} \) defined by \( f^*(xy) = f(x) \) if and only if \( f(x) = f(y) \) for each edge \( xy \in E \). The balance index set of \( G \), denoted \( \text{BI}(G) \), is defined as \( \{|f^{*-1}(0) – f^{*-1}(1)| : |f^{-1}(0) – f^{-1}(1)| \leq 1\} \). In this paper, we study the balance index sets of graphs which are \( L \)-products with cycles and complete graphs.