Poset and the Containment Relations Between Different Kinds of Greedoids
2004-04-29 00:00:00MaoHua
鄭州大學(xué)學(xué)報(理學(xué)版) 2004年1期
Abstract：It is known that poset theory is important to the study on greedoid theory.But what is the direct relation between poset theory and the containment relations between different kinds of geedoids?How to apply poset theo-ty to solve such problem?In order to obtain the answers，the applications to study the containment relations be-tween classes of greedoids are discussed by constrcting a posef for all greedoids defined on the same set.Most reslts are presented in constructive methods and so they are casier and clearer in theory and application.
Key words：greedoid；poset；containment relation
CLC number：O 157
Article ID：1671-6841(2004)01-0025-04
