1College of Arts and Sciences Shanghai Maritime University
2Research Institute for Natural Sci., Department of Mathematics, Hanyang University, Seoul, 04763, Korea
3Department of Mathematics University of Alabama
In this paper, given a poset $(X,\leq)$, we introduce some drifts on a groupoid $(X,*)$ with respect to $(X,\leq)$, and we obtain several properties of these drifts related to the notion of $Bin(X)$. We discuss some connections between fuzzy subalgebras and upward drifts.