On the structure of maximum 2-part Spern
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Shahriar Shahriari
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Article
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1996
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Elsevier Science
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English
β 479 KB
Color the elements of a finite set S with two colors. A collection of subsets of S is called a 2-part Sperner family if whenever for two distinct sets A and B in this collection we have A c B then B -A has elements of S of both colors. All 2-part Sperner families of maximum size were characterized i