A zero-free interval for chromatic polyn
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D.R. Woodall
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Article
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1992
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Elsevier Science
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English
β 458 KB
Woodall, D.R., A zero-free interval for chromatic polynomials, Discrete Mathematics 101 (1992) 333-341. It is proved that, for a wide class of near-triangulations of the plane, the chromatic polynomial has no zeros between 2 and 2.5. Together with a previously known result, this shows that the zero