On a power of cyclically ordered sets
On a property of partially ordered sets.
On A System Of All Maximal Chains (Antichains) Of A Graph
On a Theory of Scale Types.
On algebraic closures of compact elements
On an axiom concerning the theory of “interval orders”.
On an integer sequence related to a product of trigonometric functions, and its combinatorial relevance.
On automorphism groups of cyclically ordered sets.
On Banach's fixed point theorem and formal balls.
On bisemilattices. I
On blockers in bounded posets.
On CCC boolean algebras and partial orders
We partially strengthen a result of Shelah from [Sh] by proving that if and is a CCC partial order with e.g. (the successor of ) and then is -linked.
On chains and posets within the power set of a continuum.
On chains whose power semigroups are lattices.
On closure operators on monoids
On colored set partitions of type B n
Generalizing Reiner’s notion of set partitions of type B n, we define colored B n-partitions by coloring the elements in and not in the zero-block respectively. Considering the generating function of colored B n-partitions, we get the exact formulas for the expectation and variance of the number of non-zero-blocks in a random colored B n-partition. We find an asymptotic expression of the total number of colored B n-partitions up to an error of O(n −1/2log7/2 n], and prove that the centralized and...
On completeness and direction in fuzzy relational systems.
The concepts of bounded subset, complete subset and directed subset, wich are well known in the context of partially ordered sets (X,≤), are extended in order to become appliable, with coherence, in fuzzy relational systems (X,R). The properties of these generalized structures are analyzed and operative exemples of them are presented.
On completion of cyclically ordered sets
On convexly isomorphic posets
On dense subsets of rational numbers