Representative properties of the quasi-ordered set
Retract extensions of ordered sets.
Riduzioni omotopicamente invarianti di insiemi parzialmente ordinati
Rotations of -lattices
In [2], J. Klimes studied rotations of lattices. The aim of the paper is to research rotations of the so-called -lattices introduced in [3] by V. Snasel.
Selfduality of the system of convex subsets of a partially ordered set
For a partially ordered set let us denote by the system of all convex subsets of . It is found the necessary and sufficient condition (concerning ) under which (as a partially ordered set) is selfdual.
Selfduality of the system of intervals of a partially ordered set
Semi-closure mappings and cofinal chains
Semigroups of order-preserving partial endomorphisms on trees, I
Semilattice structures on trees.
Semi-ordered groups
Semi-valuation et métrique associée
Sets and Posets with Inversions
Singularities on flag spaces
Some aspects of radical theory for fully ordered Abelian groups
Some cardinal characteristics of ordered sets
For ordered (= partially ordered) sets we introduce certain cardinal characteristics of them (some of those are known). We show that these characteristics—with one exception—coincide.
Some characterizations of completeness for trellises in terms of joins of cycles
This paper gives some new characterizations of completeness for trellises by introducing the notion of a cycle-complete trellis. One of our results yields, in particular, a characterization of completeness for trellises of finite length due to K. Gladstien (see K. Gladstien: Characterization of completeness for trellises of finite length, Algebra Universalis 3 (1973), 341–344).
Some fixed point theorems of the mappings of partially ordered sets
Some operations related with translation
Some properties of an ordering relation on certain classes of functors
Some properties of boolean ordered sets