Capacities with Values in Compact Hausdorff Lattices. - Oleh R. Nykyforchyn (Appl. Categorical Struct., 2007)

Idempotent Convexity and Algebras for the Capacity Monad and its Submonads. - Oleh R. Nykyforchyn; Dusan Repovs (Appl. Categorical Struct., 2011)

Ambiguous representations as fuzzy relations between sets. - Oleh R. Nykyforchyn; Dusan Repovs (Fuzzy Sets Syst., 2011)

L-fuzzy strongest postcondition predicate transformers as L-idempotent linear or affine operators between semimodules of monotonic predicates. - Oleh R. Nykyforchyn; Dusan Repovs (Fuzzy Sets Syst., 2012)

Adjoints and Monads Related to Compact Lattices and Compact Lawson Idempotent Semimodules. - Oleh R. Nykyforchyn (Order, 2012)

Rough games modeled via L-fuzzy ambiguous representations of semilattices. - Oleh R. Nykyforchyn; Oksana Mykytsey (Fuzzy Sets Syst., 2020)

Ambiguous Representations of Semilattices, Imperfect Information, and Predicate Transformers. - Oleh R. Nykyforchyn; Oksana Mykytsey (Order, 2020)

Approximation Relations on the Posets of Pseudoultrametrics. - Svyatoslav Nykorovych; Oleh R. Nykyforchyn; Andriy Zagorodnyuk (Axioms, 2023)