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Displaying similar documents to “Minimal ball-coverings in Banach spaces and their application”

Some topological properties of ω -covering sets

Andrzej Nowik (2000)

Czechoslovak Mathematical Journal

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We prove the following theorems: There exists an ω -covering with the property s 0 . Under c o v ( 𝒩 ) = there exists X such that B o r [ B X is not an ω -covering or X B is not an ω -covering]. Also we characterize the property of being an ω -covering.

A new lower bound for the football pool problem for 7 matches

Laurent Habsieger (1996)

Journal de théorie des nombres de Bordeaux

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Let K 3 ( 7 , 1 ) denote the minimum cardinality of a ternary code of length 7 and covering radius one. In a previous paper, we improved on the lower bound K 3 ( 7 , 1 ) 147 by showing that K 3 ( 7 , 1 ) 150 . In this note, we prove that K 3 ( 7 , 1 ) 153 .