Convex automorphisms of partial monounary algebras
Convex subsets of partial monounary algebras
Cyclically ordered sets as partial algebras
A representation of cyclically ordered sets by means of partial semigroups with an additional unary operation is constructed.
Decidability of weak equational theories
Einige Bemerkungen über Clones und interpolierbare Funktionen auf universellen Algebren
Endomorphisms and connected components of partial monounary algebras
Endomorphisms of partial monounary algebras
Equational bases for weak monounary varieties
It is well-known that every monounary variety of total algebras has one-element equational basis (see [5]). In my paper I prove that every monounary weak variety has at most 3-element equational basis. I give an example of monounary weak variety having 3-element equational basis, which has no 2-element equational basis.
Essentially equational categories
Exchangeable partial groupoids I
Exchangeable partial groupoids II
Exponentiality in categories of partial algebras.
Exponentiation of relational systems with respect to strong homomorphisms.
Four notes on quasiorder lattices
From hereditary classes to varieties in abstract model theory and partial algebra
Generalization of the concept of variety and quasivariety to partial algebras through category theory [Book]
Generalized difference posets and orthoalgebras.
Graph homomorphisms of partial monounary algebras
Homomorphism theorem for equationally partial algebras
Intervals in partial monounary algebras
In this paper the notion of an interval in a partial monounary algebra is introduced and pairs , of partial monounary algebras are investigated such that each interval in is also an interval in , and conversely.