Domination numbers and zeros of chromatic polynomials |
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| Authors: | F.M. Dong K.M. Koh |
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| Affiliation: | a Mathematics and Mathematics Education, National Institute of Education, Nanyang Technological University, Singapore 637616, Singapore
b Department of Mathematics, National University of Singapore, Singapore 117543, Singapore |
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| Abstract: | In this paper, we shall prove that if the domination number of G is at most 2, then P(G,λ) is zero-free in the interval (1,β), where |
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| Keywords: | Domination number Chromatic polynomial Zero Zero-free interval Splitting-closed family |
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