Cīrulis, Jānis Quasi-decompositions and quasidirect products of Hilbert algebras. (English) Zbl 07438421 Math. Slovaca 71, No. 4, 781-806 (2021). Reviewer: Daniel Romano (Banja Luka) MSC: 03G25 06A15 PDF BibTeX XML Cite \textit{J. Cīrulis}, Math. Slovaca 71, No. 4, 781--806 (2021; Zbl 07438421) Full Text: DOI OpenURL
Cırulis, Jānis Lattice of closure endomorphisms of a Hilbert algebra. (English) Zbl 1437.03183 Asian-Eur. J. Math. 12, No. 5, Article ID 1950082, 16 p. (2019). MSC: 03G25 06A15 06F35 08A35 PDF BibTeX XML Cite \textit{J. Cırulis}, Asian-Eur. J. Math. 12, No. 5, Article ID 1950082, 16 p. (2019; Zbl 1437.03183) Full Text: DOI arXiv OpenURL
Cīrulis, Jānis Orthoposets with quantifiers. (English) Zbl 1286.06013 Bull. Sect. Log., Univ. Łódź, Dep. Log. 41, No. 1-2, 1-12 (2012). MSC: 06C15 06A15 PDF BibTeX XML Cite \textit{J. Cīrulis}, Bull. Sect. Log., Univ. Łódź, Dep. Log. 41, No. 1--2, 1--12 (2012; Zbl 1286.06013) Full Text: Link OpenURL
Cīrulis, Jānis Adjoint semilattice and minimal Brouwerian extensions of a Hilbert algebra. (English) Zbl 1280.03063 Acta Univ. Palacki. Olomuc., Fac. Rerum Nat., Math. 51, No. 2, 41-51 (2012). Reviewer: Florentina Chirteş (Craiova) MSC: 03G25 06A12 06A15 08A35 PDF BibTeX XML Cite \textit{J. Cīrulis}, Acta Univ. Palacki. Olomuc., Fac. Rerum Nat., Math. 51, No. 2, 41--51 (2012; Zbl 1280.03063) Full Text: Link OpenURL
Cīrulis, Jānis Symmetric closure operators on orthoposets. (English) Zbl 1284.06009 Czermak, J. (ed.) et al., Proceedings of the 81st workshop on general algebra “81. Arbeitstagung Allgemeine Algebra”, Salzburg, Austria, February 3–6, 2011. Klagenfurt: Verlag Johannes Heyn (ISBN 978-3-7084-0447-9/pbk). Contributions to General Algebra 20, 19-28 (2012). Reviewer: Helmut Länger (Wien) MSC: 06A15 06C15 PDF BibTeX XML Cite \textit{J. Cīrulis}, Contrib. Gen. Algebra 20, 19--28 (2012; Zbl 1284.06009) OpenURL
Cīrulis, Jānis Multipliers, closure endomorphisms and quasi-decompositions of a Hilbert algebra. (English) Zbl 1082.03056 Chajda, I. (ed.) et al., Proceedings of the 68th workshop on general algebra “68. Arbeitstagung Allgemeine Algebra”, Dresden, Germany, June 10–13, 2004 and of the summer school 2004 on general algebra and ordered sets, Malá Morávka, Czech Republic, September 5–11, 2004. Klagenfurt: Verlag Johannes Heyn (ISBN 3-7084-0163-8/pbk). Contributions to General Algebra 16, 25-34 (2005). Reviewer: Michiro Kondo (Inzai) MSC: 03G25 06A15 PDF BibTeX XML Cite \textit{J. Cīrulis}, Contrib. Gen. Algebra 16, 25--34 (2005; Zbl 1082.03056) OpenURL
Cīrulis, Jānis Modal semilattices, implicative semilattices and triples. (English) Zbl 0993.06003 Chajda, I. (ed.) et al., Contributions to general algebra 13. Proceedings of the 60th workshop on general algebra “60. Arbeitstagung Allgemeine Algebra”, Dresden, Germany, June 22-25, 2000 and of the summer school ’99 on general algebra and ordered sets, Velké Karlovice, Czech Republic, August 30-September 4, 1999. Klagenfurt: Verlag Johannes Heyn. Contrib. Gen. Algebra. 13, 91-101 (2001). Reviewer: Jaromír Duda (Brno) MSC: 06A12 06A15 08A05 PDF BibTeX XML Cite \textit{J. Cīrulis}, Contrib. Gen. Algebra 13, 91--101 (2001; Zbl 0993.06003) OpenURL
Cīrulis, Jānis Coresiduated homomorphisms between implicative semilattices. (English) Zbl 1023.06500 Proc. Latv. Acad. Sci., Sect. B, Nat. Exact Appl. Sci. 50, No. 1, 9-12 (1996). MSC: 06A15 03G10 06A12 PDF BibTeX XML Cite \textit{J. Cīrulis}, Proc. Latv. Acad. Sci., Sect. B, Nat. Exact Appl. Sci. 50, No. 1, 9--12 (1996; Zbl 1023.06500) OpenURL
Cirulis, Jănis Multipliers in implicative algebras. (English) Zbl 0634.03067 Bull. Sect. Logic, Pol. Acad. Sci. 15, 152-158 (1986). Reviewer: J.Cirulis MSC: 03G25 06A15 PDF BibTeX XML Cite \textit{J. Cirulis}, Bull. Sect. Logic, Pol. Acad. Sci. 15, 152--158 (1986; Zbl 0634.03067) OpenURL
Cīrulis, Jānis Remarks on endomorphisms of the closure of implicative semilattices. (Russian) Zbl 0621.06002 Latv. Mat. Ezheg. 30, 136-149 (1986). Reviewer: Tibor Katriňák (Bratislava) MSC: 06A12 06A15 06B10 08A35 06D20 PDF BibTeX XML Cite \textit{J. Cīrulis}, Latv. Mat. Ezheg. 30, 136--149 (1986; Zbl 0621.06002) OpenURL
Tsirulis, J. P. Relative pseudo-complements in semilattices. (English) Zbl 0521.06008 Sov. Math. 26, No. 2, 102-106 (1982). MSC: 06A12 06A15 03G25 PDF BibTeX XML Cite \textit{J. P. Tsirulis}, Sov. Math. 26, No. 2, 102--106 (1982; Zbl 0521.06008) OpenURL
Tsirulis, J. P. Relative pseudo-complements in semilattices. (Russian) Zbl 0492.06003 Izv. Vyssh. Uchebn. Zaved., Mat. 1982, No. 2(237), 78-80 (1982). MSC: 06A12 06A15 03G25 PDF BibTeX XML Cite \textit{J. P. Tsirulis}, Izv. Vyssh. Uchebn. Zaved., Mat. 1982, No. 2(237), 78--80 (1982; Zbl 0492.06003) OpenURL