Sharankhaev, Ivan Konstantinovich On positive completeness and positively closed sets of multifunctions of rank 2. (Russian. English summary) Zbl 07896827 Sib. Èlektron. Mat. Izv. 20, No. 2, 1313-1319 (2023). MSC: 08A99 × Cite Format Result Cite Review PDF Full Text: DOI MNR
Marchenkov, Sergey S. On the action of the implicative closure operator on the set of partial functions of the multivalued logic. (English. Russian original) Zbl 1524.03020 Discrete Math. Appl. 31, No. 3, 155-164 (2021); translation from Diskretn. Mat. 32, No. 1, 60-73 (2020). MSC: 03B50 × Cite Format Result Cite Review PDF Full Text: DOI
Ryabets, Leonid Vladimirovich Parametric closed classes of hyperfunctions on two-element set. (Russian. English summary) Zbl 1362.08001 Izv. Irkutsk. Gos. Univ., Ser. Mat. 17, 46-61 (2016). MSC: 08A40 03B50 06E30 × Cite Format Result Cite Review PDF Full Text: Link