9 citations · 21 across the 10 of their papers we have counts for
10 papers
Correction: N-free posets and orthomodularity
Gejza Jenča
We present a corrected version of a theorem from the paper "N-free posets and orthomodularity" published in Order 43(1) (2026).
N-free posets and orthomodularity
Gejza Jenča
We prove that the incomparability orthoset of a finite poset is Dacey if and only if the poset is N-free. We give a characterization of finite posets with compatible incomparabilit…
Quantum Suplattices
Gejza Jenča, Bert Lindenhovius
Building on the theory of quantum posets, we introduce a non-commutative version of suplattices, i.e., complete lattices whose morphisms are supremum-preserving maps, which form a…
Orthogonality spaces associated with posets
Gejza Jenča
An orthogonality space is a set equipped with a symmetric, irreflexive relation called orthogonality. Every orthogonality space has an associated complete ortholattice, called the…
Voltage lifts of graphs from a category theory viewpoint
Gejza Jenča
We prove that the notion of a derived voltage graph comes from an adjunction between the category of voltage graphs and a category of group labeled graphs.
Pseudo effect algebras as algebras over bounded posets
Gejza Jenča
We prove that there is a monadic adjunction between the category of bounded posets and the category of pseudo effect algebras.
Linear extensions and order-preserving poset partitions
Gejza Jenča, Peter Sarkoci
We examine the lattice of all order congruences of a finite poset from the viewpoint of combinatorial algebraic topology. We will prove that the order complex of the lattice of all…
Extensions of witness mappings
Gejza Jenča
We deal with the problem of coexistence in interval effect algebras using the notion of a witness mapping. Suppose that we are given an interval effect algebra , a coexistent su…
Compatibility support mappings in effect algebras
Gejza Jenča
We give a characterization of subsets of effect algebras, that can be embedded into a range of an observable. To give this characterization, we introduce a new notion of {\em compa…
A representation theorem for MV-algebras
Gejza Jenca
An {\em MV-pair} is a pair where is a Boolean algebra and is a subgroup of the automorphism group of satisfying certain conditions. Let be the equivale…