4 citations · 13 across the 28 of their papers we have counts for
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math.RA2019
Semimodular -lattices
Ivan Chajda, Helmut Länger
The concept of a -lattice was introduced by V. Sná\v sel in order to generalize some lattice concepts for directed posets whose elements need not have suprema or infima. We exte…
math.RA2019
Semimodules over commutative semirings and modules over unitary commutative rings
Ivan Chajda, Helmut Länger
We study the so-called closed and splitting subsemimodules and submodules of a given semimodule or module, respectively. We describe lattices of subsemimodules and of closed subsem…
math.RA2019
Sectionally pseudocomplemented posets
Ivan Chajda, Helmut Länger, Jan Paseka
The concept of a sectionally pseudocomplemented lattice was introduced by I. Chajda as an extension of relative pseudocomplementation for not necessarily distributive lattices. The…