Three-variable equations of posets
We find an independent base for three-variable equations of posets.
Tolerances, interval orders, and semiorders
Tolerances on poset algebras
To everz partiallz ordered set a certain groupoid is assigned. A tolerance on it is defined similarlz as a congruence, onlz the requirement of transitivitz is omitted. Some theorems concerning these tolerances are proved.
Topological categories containing any category of algebras
Topologies compatible with order and separation axioms
Topologies sur des espaces ordonnés
Total compactness of A-inductive partially ordered sets
Transitive closures of binary relations. I.
Transitive closures of binary relations II.
Transitive closures of binary relations. III.
Transitive ternary relations and quasiorderings
Transitively acting monoids of local automorphisms of locally finite trees
Translations des ensembles ordonnés
Translations of distributive and modular ordered sets
Two Poset Polytopes.
T-родно упорядоченные группы