TY  - GEN
AU  - Engel, Konrad 
TI  - Sperner theory, Vol. 65
SN  - 9780521452069
U1  - 511.32 ENG 
PY  - 1997///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Algebraic Topology
KW  - Combinatorial Set Theory
KW  - Partially Ordered Sets
KW  - Sperner Theory
N2  - The starting point of this book is Sperner's theorem, which answers the question: What is the maximum possible size of a family of pairwise (with respect to inclusion) subsets of a finite set? This theorem stimulated the development of a fast growing theory dealing with external problems on finite sets and, more generally, on finite partially ordered sets. This book presents Sperner theory from a unified point of view, bringing combinatorial techniques together with methods from programming, linear algebra, Lie-algebra representations and eigenvalue methods, probability theory, and enumerative
ER  -