On algebraic operations of a lattice-ordered group
Projectable kernel of a lattice ordered group
Convex isomorphisms of Archimedean lattice ordered groups.
This paper contains a result of Cantor-Bernstein type concerning archimedean lattice ordered groups.
On absolute retracts and absolute convex retracts in some classes of l-groups
By dealing with absolute retracts of l-groups we use a definition analogous to that applied by Halmos for the case of Boolean algebras. The main results of the present paper concern absolute convex retracts in the class of all archimedean l-groups and in the class of all complete l-groups.
Isomorphisms of direct products of lattice-ordered groups
In this paper we investigate sufficient conditions for the validity of certain implications concerning direct products of lattice-ordered groups.
On the lattice of additive hereditary properties of finite graphs
In this paper it is proved that the lattice of additive hereditary properties of finite graphs is completely distributive and that it does not satisfy the Jordan-Dedekind condition for infinite chains.
Лексикографические произведения частично упорядоченных группоидов
The mixed product decompositions of partially ordered groups
Cantor-Bernstein theorem for lattice ordered groups
Прямые разложения частично упорядоченных групп
О графическом изоморфизме структур
Прямые разложения частично упорядоченных групп, II
Weak product decompositions of discrete lattices
Прямые разложения вполне дистрибутивных структур
Über Verbandsgruppen mit zwei Erzeugenden
О отношениях конгруэнтности на абстрактных алгебрах
Системы отношений конгруэнтности в структурах
Прямые разложения единицы в модулярных структурах
Об аксиомах теории мультиструктур
Orthogonal hull of a strongly projectable lattice ordered group
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