Popescu, Emil On Galois connexions. (English) Zbl 0875.06003 Orman, Gabriel V. (ed.), Proceedings of the 3rd colloquium of logic, language, mathematics linguistics, Braşov, Romania, May 23-25, 1991. Braşov: Transilvania Univ. of Braşov, Fac. of Science, Dept. of Math. 95-110 (1991). MSC: 06A15 68Q45 PDF BibTeX XML Cite \textit{E. Popescu}, in: Proceedings of the 3rd colloquium of logic, language, mathematics linguistics, Braşov, Romania, May 23-25, 1991. Braşov: Transilvania Univ. of Braşov, Fac. of Science, Dept. of Math.. 95--110 (1991; Zbl 0875.06003) OpenURL
Both, N. Independence and duality. (English) Zbl 0782.08001 Math., Rev. Anal. Numér. Théor. Approximation, Math. 33(56), No. 1-2, 9-12 (1991). Reviewer: D.Busneag (Craiova) MSC: 08A02 06A15 03E20 PDF BibTeX XML Cite \textit{N. Both}, Math. Rev. Anal. Numér. Théor. Approximation, Math. 33(56), No. 1--2, 9--12 (1991; Zbl 0782.08001) OpenURL
Tolstosheĭna, S. V. Generating sets of semigroups of closure operators. (Russian) Zbl 0776.20021 Uporyad. Mnozhestva Reshetki 10, 112-118 (1991). Reviewer: Václav Koubek (Praha) MSC: 20M20 20M05 06A15 PDF BibTeX XML Cite \textit{S. V. Tolstosheĭna}, Uporyad. Mnozhestva Reshetki 10, 112--118 (1991; Zbl 0776.20021) OpenURL
Kollár, Dušan; Šulka, Robert On some closure operators on semigroups. (English) Zbl 0755.20014 Demonstr. Math. 24, No. 1-2, 35-45 (1991). Reviewer: B.Pondělíček (Praha) MSC: 20M10 06A15 PDF BibTeX XML Cite \textit{D. Kollár} and \textit{R. Šulka}, Demonstr. Math. 24, No. 1--2, 35--45 (1991; Zbl 0755.20014) OpenURL
Dunn, J. Michael Gaggle theory: An abstraction of Galois connections and residuation, with applications to negation, implication, and various logical operators. (English) Zbl 0814.03044 Eijck, Jan van (ed.), Logics in AI. European workshop JELIA ’90, Amsterdam, Netherlands, September 10-14, 1990. Proceedings. Berlin etc.: Springer-Verlag. Lect. Notes Comput. Sci. 478, 31-51 (1991). Reviewer: V.Shekhtman (Moskva) MSC: 03G25 06A15 06D05 03B45 06E25 PDF BibTeX XML Cite \textit{J. M. Dunn}, Lect. Notes Comput. Sci. 478, 31--51 (1991; Zbl 0814.03044) OpenURL
Martínez-Legaz, J.-E.; Singer, Ivan \(\bigvee\)-dualities and \(\perp\)-dualities. (English) Zbl 0728.06007 Optimization 22, No. 4, 483-511 (1991). MSC: 06A15 06B23 PDF BibTeX XML Cite \textit{J. E. Martínez-Legaz} and \textit{I. Singer}, Optimization 22, No. 4, 483--511 (1991; Zbl 0728.06007) Full Text: DOI OpenURL
Jordens, Olav; Sturm, Teo Equivalences with closed equivalence classes. (English) Zbl 0718.06003 Math. Jap. 36, No. 2, 291-304 (1991). MSC: 06A15 08A30 08C10 06A06 PDF BibTeX XML Cite \textit{O. Jordens} and \textit{T. Sturm}, Math. Japon. 36, No. 2, 291--304 (1991; Zbl 0718.06003) OpenURL
Jordens, Olav; Sturm, Teo Closure systems of equivalences with a local property. (English) Zbl 0718.06002 Math. Jap. 36, No. 2, 245-250 (1991). MSC: 06A15 08A30 06B23 PDF BibTeX XML Cite \textit{O. Jordens} and \textit{T. Sturm}, Math. Japon. 36, No. 2, 245--250 (1991; Zbl 0718.06002) OpenURL
Ganter, Bernhard; Reuter, Klaus Finding all closed sets: A general approach. (English) Zbl 0754.06003 Order 8, No. 3, 283-290 (1991). Reviewer: K.Reuter MSC: 06A15 68R99 PDF BibTeX XML Cite \textit{B. Ganter} and \textit{K. Reuter}, Order 8, No. 3, 283--290 (1991; Zbl 0754.06003) Full Text: DOI OpenURL
Baulieu, Forrest B. Classification of normalized cluster methods in an order theoretic model. (English) Zbl 0742.92025 Discrete Appl. Math. 32, No. 1, 1-29 (1991). Reviewer: L.Niepel (Bratislava) MSC: 91C20 06A15 62H30 PDF BibTeX XML Cite \textit{F. B. Baulieu}, Discrete Appl. Math. 32, No. 1, 1--29 (1991; Zbl 0742.92025) Full Text: DOI OpenURL
Wille, Rudolf Tensor products of complete lattices as closure systems. (English) Zbl 0736.06011 General algebra, Proc. Conf., Vienna/Austria 1990, Contrib. Gen. Algebra 7, 381-386 (1991). MSC: 06B23 06A15 PDF BibTeX XML Cite \textit{R. Wille}, Contrib. Gen. Algebra None, 381--386 (1991; Zbl 0736.06011) OpenURL
Harbarth, Juliane A Galois correspondence between equivalence relations and unary operations. (English) Zbl 0747.08003 General algebra, Proc. Conf., Vienna/Austria 1990, Contrib. Gen. Algebra 7, 185-188 (1991). MSC: 08A30 08A40 06A15 PDF BibTeX XML Cite \textit{J. Harbarth}, Contrib. Gen. Algebra None, 185--188 (1991; Zbl 0747.08003) OpenURL
Šmarda, Bohumil Polarities on algebraical structures. (English) Zbl 0743.20042 Acta Math. Univ. Comenianae 58-59, 181-187 (1991). Reviewer: M.Abad (Bahia Blanca) MSC: 20F60 06F15 08A30 06A15 PDF BibTeX XML Cite \textit{B. Šmarda}, Acta Math. Univ. Comenianae 58--59, 181--187 (1991; Zbl 0743.20042) OpenURL