Construction and Enumeration of a Special Class of Transitive Relations

Yan Yang1, Qing-qing Li1, Xue-ping Wang2
1College of Sciences Southwest Petroleum University, Sichuan 610500, China
2College of Mathematics and software Science Sichuan Normal University, Sichuan 610066, China

Abstract

In this paper, we deal with the transitive relations on a finite $n$-element set. The transitive relations are interpreted as Boolean matrices. A special class of transitive relations are constructed and enumerated, which can generate all transitive
relations on a finite n-element set by intersection operation. Besides, several necessary and sufficient conditions that a relation
\(R\) is transitive are given.