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Log-Concavity of Whitney Numbers of Dowling Lattices

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We prove that the generating polynomial of Whitney numbers of the second kind of Dowling lattices has only real zeros.

Document Type: Research Article

Affiliations: Département de Mathématiques, Bat. 101, Université Claude Bernard, Lyon 1, 43, Bd du 11 Novembre 1918, Villeurbanne Cedex, 69622, France

Publication date: February 1, 1999

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