Graph automorphisms of multilattices
In the present paper we generalize a result of a theorem of J. Jakubík concerning graph automorphisms of lattices to the case of multilattices of locally finite length.
Affine completness of projectable lattice ordered groups
Convex isomorphisms of directed multilattices
By applying the solution of the internal direct product decomposition we investigate the relations between convex isomorphisms and direct product decompositions of directed multilattices.
Cancellation rule for internal direct product decompositions of a connected partially ordered set
In this note we deal with two-factor internal direct product decompositions of a connected partially ordered set.
Seventy years of Professor Ján Jakubík
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