Article ID Journal Published Year Pages File Type
9513242 Discrete Mathematics 2005 11 Pages PDF
Abstract
For a given finite poset T whose Hasse diagram is a tree and its maximal element is its root, we compare the number of those embeddings into T of a chain of a given length which contain the maximal element of T and the number of those embeddings which do not contain the maximal element of T. For a given positive integer k, we establish average depth thresholds for T beyond which there are always more embeddings of the second kind than those of the first one. We, actually, give a better than 1 upper bound for the ratio between the numbers of these embeddings that depends on the structure of T.
Related Topics
Physical Sciences and Engineering Mathematics Discrete Mathematics and Combinatorics
Authors
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