Characterizations of Convex spaces and Anti-matroids via Derived Operators

In this paper we use the notion of derived sets to study convex spaces. By axiomatizing the derived sets on convex spaces, we define c-derived operators and restricted c-derived operators. Results show that convex structures can be characterized in terms of c-derived operators. Furthermore, the link...

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Bibliographic Details
Main Authors: Chen Fanhong, Shen Chong
Format: Article
Language:English
Published: De Gruyter 2019-05-01
Series:Open Mathematics
Subjects:
Online Access:https://doi.org/10.1515/math-2019-0022
Description
Summary:In this paper we use the notion of derived sets to study convex spaces. By axiomatizing the derived sets on convex spaces, we define c-derived operators and restricted c-derived operators. Results show that convex structures can be characterized in terms of c-derived operators. Furthermore, the link between c-derived operators and Shi’s m-derived operators is studied. Specifically, it is proved that a c-derived operator is an m-derived operator if and only if it satisfies the Exchange Law. At last, we show an application of c-derived operators to anti-matroids.
ISSN:2391-5455