On the Rank Function of a Differential Poset

Electronic Journal Of Combinatorics

Richard P. Stanley¹ 

关键词: Partially ordered set;    Differential poset;    Rank function;    Young lattice;    Young-Fibonacci lattice;    Hasse diagram;    Hasse walk;    Hypergraph;    Finite project;   

DOI  :  

学科分类：离散数学和组合数学

来源: Electronic Journal Of Combinatorics

【 摘 要 】

We study $r$-differential posets, a class of combinatorial objects introduced in 1988 by the first author, which gathers together a number of remarkable combinatorial and algebraic properties, and generalizes important examples of ranked posets, including

【 授权许可】

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