Císcar, Juan Vicente Llinares - Instituto Valenciano de Investigaciones Económicas (IVIE) - 1995
covers both ways (convexity and acyclicity) of analyzing the problem of existence of maximal elements of non transitive … binary relations. And on the other hand, to introduce the concept of an abstract convexity structure, which we call mc …-spaces, that generalizes the notion of usual convexity. It is presented as a powerful tool which allows many problems which have …