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Polytopes determined by complementfree Sperner families

✍ Scribed by Konrad Engel; Peter L. Erdős

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
272 KB
Volume
81
Category
Article
ISSN
0012-365X

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✦ Synopsis

The profile of a family of subsets of an n-element set is a vector f = (f,,

, f,), where fk denotes the number of k-element sets in the family. Using a new method the extreme points of the convex hull of the profiles of all complementfree Sperner families over an n-element set are determined.

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