On B-algebras
On BE-semigroups.
On BF-algebras
On branchwise implicative BCI-algebras.
On Butler -groups decomposing over two base elements
A -group is a sum of a finite number of torsionfree Abelian groups of rank , subject to two independent linear relations. We complete here the study of direct decompositions over two base elements, determining the cases where the relations play an essential role.
On Carathéodory vector lattices
On Carathéodory's and Krein-Milman's theorems in fully ordered groups
On certain lattice-ordered semigroups.
On certain localic nuclei
On complete lattice ordered groups with strong units
On complete lattice ordered groups with two generators. I.
On complete lattice ordered groups with two generators. II.
On completions of linearly ordered groups
On congruence distributivity of ordered algebras with constants
We define the order-congruence distributivity at 0 and order- congruence n-distributivity at 0 of ordered algebras with a nullary operation 0. These notions are generalizations of congruence distributivity and congruence n-distributivity. We prove that a class of ordered algebras with a nullary operation 0 closed under taking subalgebras and direct products is order-congruence distributive at 0 iff it is order-congruence n-distributive at 0. We also characterize such classes by a Mal'tsev condition....
On congruences and ideals of partially ordered quasigroups
Some results concerning congruence relations on partially ordered quasigroups (especially, Riesz quasigroups) and ideals of partially ordered loops are presented. These results generalize the assertions which were proved by Fuchs in [5] for partially ordered groups and Riesz groups.
On Conrad's partial order relation on semiprime rings and semigroups.
On constructive nilpotent groups.
On convex linearly ordered subgroups of an -group
On convexities of -groups
On covers in the lattice of representable -varieties