Yaolong Li
Abstract
The rank function is introduced for poset greedoids on the base of poset matroids,and the closure operators are defined and a series of properties of closure operaters of poset greedoids are discussed.Finally,the closure axioms on poset greedoids are obtained.
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The rank function is introduced for poset greedoids on the base of poset matroids,and the closure operators are defined and a series of properties of closure operaters of poset greedoids are discussed.Finally,the closure axioms on poset greedoids are obtained.
Key concepts: Partially ordered set, Closure (psychology), Matroid, Mathematics, Axiom, Combinatorics, Rank (graph theory), Closure operator