7 citations · 11 across the 25 of their papers we have counts for
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math.CO2025
Congruences on posets, relatively pseudocomplemented and Boolean posets
Ivan Chajda, Helmut Länger
The aim of the present paper is to extend the concept of a congruence from lattices to posets. We use an approach different from that used by the first author and V. Snášel. By usi…
math.CO2021
Monotone and cone preserving mappings on posets
Ivan Chajda, Helmut Länger
We define several sorts of mappings on a poset like monotone, strictly monotone, upper cone preserving and variants of these. Our aim is to characterize posets in which some of the…