Herrmann, Christian On the finiteness problem for classes of modular lattices. (English) Zbl 1472.06007 Algebra Univers. 80, No. 1, Paper No. 4, 3 p. (2019). MSC: 06C05 03D35 PDFBibTeX XMLCite \textit{C. Herrmann}, Algebra Univers. 80, No. 1, Paper No. 4, 3 p. (2019; Zbl 1472.06007) Full Text: DOI arXiv
Herrmann, Christian; Ziegler, Martin Definable relations in finite-dimensional subspace lattices with involution. (English) Zbl 1472.03029 Algebra Univers. 79, No. 3, Paper No. 68, 26 p. (2018). MSC: 03C40 03C10 06C05 03G25 PDFBibTeX XMLCite \textit{C. Herrmann} and \textit{M. Ziegler}, Algebra Univers. 79, No. 3, Paper No. 68, 26 p. (2018; Zbl 1472.03029) Full Text: DOI
Herrmann, Christian; Tsukamoto, Yasuyuki; Ziegler, Martin On the consistency problem for modular lattices and related structures. (English) Zbl 1373.06006 Int. J. Algebra Comput. 26, No. 8, 1573-1595 (2016). Reviewer: Jānis Cīrulis (Riga) MSC: 06C05 08A50 03B25 03G15 15A75 16Z05 PDFBibTeX XMLCite \textit{C. Herrmann} et al., Int. J. Algebra Comput. 26, No. 8, 1573--1595 (2016; Zbl 1373.06006) Full Text: DOI arXiv
Herrmann, Christian Homogeneous modular lattices are distributive. (English) Zbl 1377.06005 Order 33, No. 2, 359-363 (2016). Reviewer: Martin Weese (Potsdam) MSC: 06C05 03G10 06D05 PDFBibTeX XMLCite \textit{C. Herrmann}, Order 33, No. 2, 359--363 (2016; Zbl 1377.06005) Full Text: DOI
Herrmann, Christian On the coordinatization of primary Arguesian lattices of low geometric dimension. (English) Zbl 1314.06009 Beitr. Algebra Geom. 55, No. 2, 649-668 (2014). Reviewer: Horst Szambien (Garbsen) MSC: 06C05 16P20 20D30 20K01 PDFBibTeX XMLCite \textit{C. Herrmann}, Beitr. Algebra Geom. 55, No. 2, 649--668 (2014; Zbl 1314.06009) Full Text: DOI
Herrmann, Christian A review of some of Bjarni Jónsson’s results on representation of Arguesian lattices. (English) Zbl 1282.06011 Algebra Univers. 70, No. 2, 163-174 (2013). Reviewer: Grigore Călugăreanu (Cluj-Napoca) MSC: 06C05 06C20 PDFBibTeX XMLCite \textit{C. Herrmann}, Algebra Univers. 70, No. 2, 163--174 (2013; Zbl 1282.06011) Full Text: DOI
Herrmann, Christian On the number of join irreducibles and acyclicity in finite modular lattices. (English) Zbl 1216.06004 Algebra Univers. 64, No. 3-4, 433-444 (2010). Reviewer: Jan Jakubík (Košice) MSC: 06C05 PDFBibTeX XMLCite \textit{C. Herrmann}, Algebra Univers. 64, No. 3--4, 433--444 (2010; Zbl 1216.06004) Full Text: DOI
Herrmann, Christian Complemented modular lattices with involution and orthogonal geometry. (English) Zbl 1192.06008 Algebra Univers. 61, No. 3-4, 339-364 (2009). Reviewer: Jan Jakubík (Košice) MSC: 06C05 06C20 51A50 PDFBibTeX XMLCite \textit{C. Herrmann}, Algebra Univers. 61, No. 3--4, 339--364 (2009; Zbl 1192.06008) Full Text: DOI
Herrmann, Christian On perfect pairs for quadruples in complemented modular lattices and concepts of perfect elements. (English) Zbl 1195.06005 Algebra Univers. 61, No. 1, 1-29 (2009). Reviewer: Grigore Călugăreanu (Cluj-Napoca) MSC: 06C05 06C20 16G20 PDFBibTeX XMLCite \textit{C. Herrmann}, Algebra Univers. 61, No. 1, 1--29 (2009; Zbl 1195.06005) Full Text: DOI
Herrmann, Christian; Roddy, Michaele S. A second note on the equational theory of modular ortholattices. (English) Zbl 1137.06004 Algebra Univers. 57, No. 3, 371-373 (2007). Reviewer: Jānis Cīrulis (Riga) MSC: 06C15 06C05 06B20 PDFBibTeX XMLCite \textit{C. Herrmann} and \textit{M. S. Roddy}, Algebra Univers. 57, No. 3, 371--373 (2007; Zbl 1137.06004) Full Text: DOI
Herrmann, Christian; Nurakunov, Anvar On locally finite modular lattice varieties of finite height. (English) Zbl 1139.06002 Order 24, No. 1, 31-37 (2007). Reviewer: Václav Slavík (Praha) MSC: 06C05 06B20 08B15 PDFBibTeX XMLCite \textit{C. Herrmann} and \textit{A. Nurakunov}, Order 24, No. 1, 31--37 (2007; Zbl 1139.06002) Full Text: DOI
Herrmann, Christian; Semenova, Marina Existence varieties of regular rings and complemented modular lattices. (English) Zbl 1139.06003 J. Algebra 314, No. 1, 235-251 (2007). Reviewer: Václav Slavík (Praha) MSC: 06C05 06B20 16E50 PDFBibTeX XMLCite \textit{C. Herrmann} and \textit{M. Semenova}, J. Algebra 314, No. 1, 235--251 (2007; Zbl 1139.06003) Full Text: DOI
Herrmann, Christian Corrigendum: Gluings of modular lattices. (English) Zbl 1105.06005 Order 23, No. 2-3, 169-171 (2006). MSC: 06C05 06B20 PDFBibTeX XMLCite \textit{C. Herrmann}, Order 23, No. 2--3, 169--171 (2006; Zbl 1105.06005) Full Text: DOI
Herrmann, Christian Erratum: On the contractions of vectorial lattice representations. (English) Zbl 1086.06004 Order 22, No. 1, 83-84 (2005). MSC: 06C05 06C20 05B35 PDFBibTeX XMLCite \textit{C. Herrmann}, Order 22, No. 1, 83--84 (2005; Zbl 1086.06004) Full Text: DOI
Herrmann, Christian; Micol, Florence; Roddy, Michael S. On \(n\)-distributive modular ortholattices. (English) Zbl 1090.06006 Algebra Univers. 53, No. 2-3, 143-147 (2005). Reviewer: Helmut Länger (Wien) MSC: 06C15 06C05 08A50 PDFBibTeX XMLCite \textit{C. Herrmann} et al., Algebra Univers. 53, No. 2--3, 143--147 (2005; Zbl 1090.06006) Full Text: DOI
Herrmann, Christian; Takách, Géza A characterization of subgroup lattices of finite abelian groups. (English) Zbl 1075.06004 Beitr. Algebra Geom. 46, No. 1, 215-239 (2005). Reviewer: Grigore Călugăreanu (Safat) MSC: 06C05 16P20 20K10 PDFBibTeX XMLCite \textit{C. Herrmann} and \textit{G. Takách}, Beitr. Algebra Geom. 46, No. 1, 215--239 (2005; Zbl 1075.06004) Full Text: EuDML EMIS
Herrmann, Christian; Roddy, Michael S. A note on the equational theory of modular ortholattices. (English) Zbl 1014.06006 Algebra Univers. 44, No. 1-2, 165-168 (2000). Reviewer: Ivan Chajda (Olomouc) MSC: 06C05 06C15 06B20 PDFBibTeX XMLCite \textit{C. Herrmann} and \textit{M. S. Roddy}, Algebra Univers. 44, No. 1--2, 165--168 (2000; Zbl 1014.06006) Full Text: DOI
Herrmann, Christian On the size of Boolean combinations of subgroups of finite Abelian groups. (English) Zbl 0992.20015 Order 17, No. 4, 387-390 (2000). Reviewer: Grigore Călugăreanu (Safat) MSC: 20D30 06C05 20K01 PDFBibTeX XMLCite \textit{C. Herrmann}, Order 17, No. 4, 387--390 (2000; Zbl 0992.20015) Full Text: DOI
Herrmann, C. On automorphism groups of Arguesian lattices. (English) Zbl 0902.06009 Acta Math. Hung. 79, No. 1-2, 35-38 (1998). Reviewer: Ki Hang Kim (Montgomery) MSC: 06C05 20F29 20B25 PDFBibTeX XMLCite \textit{C. Herrmann}, Acta Math. Hung. 79, No. 1--2, 35--38 (1998; Zbl 0902.06009) Full Text: DOI
Herrmann, Christian; Wild, Marcel A polynomial algorithm for testing congruence modularity. (English) Zbl 0857.08006 Int. J. Algebra Comput. 6, No. 4, 379-387 (1996). Reviewer: M.Wild (Zürich) MSC: 08B10 06C05 06A15 PDFBibTeX XMLCite \textit{C. Herrmann} and \textit{M. Wild}, Int. J. Algebra Comput. 6, No. 4, 379--387 (1996; Zbl 0857.08006) Full Text: DOI
Herrmann, C. Alan Day’s work on modular and arguesian lattices. (English) Zbl 0838.06002 Algebra Univers. 34, No. 1, 35-60 (1995). Reviewer: V.N.Salij (Saratov) MSC: 06-03 06C05 PDFBibTeX XMLCite \textit{C. Herrmann}, Algebra Univers. 34, No. 1, 35--60 (1995; Zbl 0838.06002) Full Text: DOI
Herrmann, Christian; Pickering, Douglas; Roddy, Michael A geometric description of modular lattices. (English) Zbl 0816.06008 Algebra Univers. 31, No. 3, 365-396 (1994). Reviewer: H.Szambien (Garbsen) MSC: 06C05 06D05 06B20 08B15 51A05 PDFBibTeX XMLCite \textit{C. Herrmann} et al., Algebra Univers. 31, No. 3, 365--396 (1994; Zbl 0816.06008) Full Text: DOI
Day, Alan; Herrmann, Christian; Jónsson, Bjarni; Nation, J. B.; Pickering, Doug Small non-Arguesian lattices. (English) Zbl 0808.06007 Algebra Univers. 31, No. 1, 66-94 (1994). Reviewer: C.Herrmann (Darmstadt) MSC: 06C05 PDFBibTeX XMLCite \textit{A. Day} et al., Algebra Univers. 31, No. 1, 66--94 (1994; Zbl 0808.06007) Full Text: DOI
Herrmann, Christian; Wild, Marcel Acyclic modular lattices and their representations. (English) Zbl 0725.16014 J. Algebra 136, No. 1, 17-36 (1991). Reviewer: C.Herrmann (Darmstadt) MSC: 16G20 06C05 16G30 05B35 16G60 PDFBibTeX XMLCite \textit{C. Herrmann} and \textit{M. Wild}, J. Algebra 136, No. 1, 17--36 (1991; Zbl 0725.16014) Full Text: DOI
Herrmann, Christian On the contraction of vectorial lattice representations. (English) Zbl 0752.06003 Order 8, No. 3, 275-281 (1991). Reviewer: M.Stern (Halle) MSC: 06C05 06C20 05B35 PDFBibTeX XMLCite \textit{C. Herrmann}, Order 8, No. 3, 275--281 (1991; Zbl 0752.06003) Full Text: DOI
Day, Alan; Herrmann, Christian Gluings of modular lattices. (English) Zbl 0669.06007 Order 5, No. 1, 85-101 (1988). Reviewer: D.Busneag MSC: 06C05 08B25 06B20 PDFBibTeX XMLCite \textit{A. Day} and \textit{C. Herrmann}, Order 5, No. 1, 85--101 (1988; Zbl 0669.06007) Full Text: DOI
Herrmann, Christian Frames of permuting equivalences. (English) Zbl 0628.06004 Acta Sci. Math. 51, No. 1-2, 93-101 (1987). Reviewer: I.Chajda MSC: 06B05 06C05 08B10 06B10 06B15 05A17 06B20 PDFBibTeX XMLCite \textit{C. Herrmann}, Acta Sci. Math. 51, No. 1--2, 93--101 (1987; Zbl 0628.06004)
Herrmann, Christian On the arithmetic of projective coordinate systems. (English) Zbl 0544.06008 Trans. Am. Math. Soc. 284, 759-785 (1984). Reviewer: J.Jakubík MSC: 06C05 06B20 06B25 06C20 PDFBibTeX XMLCite \textit{C. Herrmann}, Trans. Am. Math. Soc. 284, 759--785 (1984; Zbl 0544.06008) Full Text: DOI
Herrmann, Christian On elementary Arguesian lattices with four generators. (English) Zbl 0539.06009 Algebra Univers. 18, 225-259 (1984). Reviewer: J.Jakubík MSC: 06C05 51A30 51D25 PDFBibTeX XMLCite \textit{C. Herrmann}, Algebra Univers. 18, 225--259 (1984; Zbl 0539.06009) Full Text: DOI
Herrmann, C. A characterization of distributivity for modular polarity lattices. (English) Zbl 0532.06007 Contributions to lattice theory, Szeged/Hung. 1980, Colloq. Math. Soc. János Bolyai 33, 473-490 (1983). Reviewer: D.Schweigert MSC: 06C05 06B05 06C10 PDFBibTeX XML
Herrmann, Christian On the word problem for the modular lattice with four free generators. (English) Zbl 0506.06004 Math. Ann. 265, 513-527 (1983). MSC: 06C05 06B25 PDFBibTeX XMLCite \textit{C. Herrmann}, Math. Ann. 265, 513--527 (1983; Zbl 0506.06004) Full Text: DOI EuDML
Herrmann, Christian Über die von vier Moduln erzeugte Dualgruppe. (On the dual group generated by four modules). (German) Zbl 0599.06005 Abh. Braunschw. Wiss. Ges. 33, 157-159 (1982). MSC: 06C05 06B25 06B15 PDFBibTeX XMLCite \textit{C. Herrmann}, Abh. Braunschw. Wiss. Ges. 33, 157--159 (1982; Zbl 0599.06005)
Herrmann, Christian Rahmen und erzeugende Quadrupel in modularen Verbänden. (German) Zbl 0503.06011 Algebra Univers. 14, 357-387 (1982). MSC: 06C05 06B15 06B25 PDFBibTeX XMLCite \textit{C. Herrmann}, Algebra Univers. 14, 357--387 (1982; Zbl 0503.06011) Full Text: DOI
Faigle, Ulrich; Herrmann, Christian Projective geometry on partially ordered sets. (English) Zbl 0466.51001 Trans. Am. Math. Soc. 266, 319-332 (1981). Reviewer: E. Glock MSC: 51A05 06C05 PDFBibTeX XMLCite \textit{U. Faigle} and \textit{C. Herrmann}, Trans. Am. Math. Soc. 266, 319--332 (1981; Zbl 0466.51001) Full Text: DOI
Freese, Ralph; Herrmann, Christian; Huhn, Andras P. On some identities valid in modular congruence varieties. (English) Zbl 0466.08001 Algebra Univers. 12, 322-334 (1981). MSC: 08B10 08A30 06C05 PDFBibTeX XMLCite \textit{R. Freese} et al., Algebra Univers. 12, 322--334 (1981; Zbl 0466.08001) Full Text: DOI
Herrmann, Christian A parameter for subdirectly irreducible modular lattices with four generators. (English) Zbl 0463.06009 Acta Sci. Math. 43, 169-179 (1981). MSC: 06C05 PDFBibTeX XMLCite \textit{C. Herrmann}, Acta Sci. Math. 43, 169--179 (1981; Zbl 0463.06009)
Gumm, H. Peter; Herrmann, Christian Algebras in modular varieties: Baer refinements, cancellation and isotopy. (English) Zbl 0458.08007 Houston J. Math. 5, 503-523 (1979). MSC: 08B10 08A30 06C05 PDFBibTeX XMLCite \textit{H. P. Gumm} and \textit{C. Herrmann}, Houston J. Math. 5, 503--523 (1979; Zbl 0458.08007)
Hagemann, Joachim; Herrmann, Christian A concrete ideal multiplication for algebraic systems and its relation to congruence distributivity. (English) Zbl 0419.08001 Arch. Math. 32, 234-245 (1979). MSC: 08A30 08B10 06C05 06B10 PDFBibTeX XMLCite \textit{J. Hagemann} and \textit{C. Herrmann}, Arch. Math. 32, 234--245 (1979; Zbl 0419.08001) Full Text: DOI
Herrmann, C.; Huhn, A. P. Lattices of normal subgroups which are generated by frames. (English) Zbl 0384.06010 Lattice Theory, Szeged 1974, Colloq. Math. Soc. Janos Bolyai 14, 97-136 (1976). MSC: 06C05 06C20 PDFBibTeX XML
Doyen, J.; Herrmann, C. Projective lines and n-distributivity. (English) Zbl 0381.06015 Lattice Theory, Szeged 1974, Colloq. Math. Soc. Janos Bolyai 14, 45-50 (1976). MSC: 06C05 06D05 PDFBibTeX XML
Herrmann, Christian On modular lattices generated by two complemented pairs. (English) Zbl 0357.06008 Houston J. Math. 2, 513-523 (1976). MSC: 06C05 PDFBibTeX XMLCite \textit{C. Herrmann}, Houston J. Math. 2, 513--523 (1976; Zbl 0357.06008)
Herrmann, Christian Concerning M. M. Gluhov’s paper on the word problem for free modular lattices. (English) Zbl 0346.06008 Algebra Univers. 5, 445 (1975). MSC: 06C05 PDFBibTeX XMLCite \textit{C. Herrmann}, Algebra Univers. 5, 445 (1975; Zbl 0346.06008) Full Text: DOI
Herrmann, Christian; Huhn, Andras Zum Wortproblem für freie Untermodulverbände. (German) Zbl 0343.06012 Arch. Math. 26, 449-453 (1975). MSC: 06C05 20E15 PDFBibTeX XMLCite \textit{C. Herrmann} and \textit{A. Huhn}, Arch. Math. 26, 449--453 (1975; Zbl 0343.06012) Full Text: DOI
Herrmann, Christian; Kindermann, Margarete; Wille, Rudolf On modular lattices generated by 1+2+2. (English) Zbl 0342.06006 Algebra Univers. 5, 243-251 (1975). MSC: 06C05 08Axx 06C15 PDFBibTeX XMLCite \textit{C. Herrmann} et al., Algebra Univers. 5, 243--251 (1975; Zbl 0342.06006) Full Text: DOI
Herrmann, Christian; Huhn, Andras P. Zum Begriff der Charakteristik modularer Verbände. (German) Zbl 0316.06006 Math. Z. 144, 185-194 (1975). MSC: 06C05 13B25 PDFBibTeX XMLCite \textit{C. Herrmann} and \textit{A. P. Huhn}, Math. Z. 144, 185--194 (1975; Zbl 0316.06006) Full Text: DOI EuDML
Herrmann, Christian; Poguntke, Werner The class of sublattices of normal subgroup lattices is not elementary. (English) Zbl 0303.20031 Algebra Univers. 4, 280-286 (1974). MSC: 20E15 08C10 06C05 PDFBibTeX XMLCite \textit{C. Herrmann} and \textit{W. Poguntke}, Algebra Univers. 4, 280--286 (1974; Zbl 0303.20031) Full Text: DOI
Herrmann, Christian Modulare Verbände von Länge \(n\leq 6\). (German) Zbl 0315.06005 Proc. Univ. Houston, Lattice Theory Conf., Houston 1973, 119-146 (1973). MSC: 06C05 PDFBibTeX XML
Herrmann, Christian On the equational theory of submodule lattices. (English) Zbl 0313.06004 Proc. Univ. Houston, Lattice Theory Conf., Houston 1973, 105-118 (1973). MSC: 06C05 08B99 20E15 03B99 PDFBibTeX XML
Herrmann, C. Weak (projective) radius and finite equational bases for classes of lattices. (English) Zbl 0288.06008 Algebra Univers. 3, 51-58 (1973). MSC: 06B05 08B99 06C05 PDFBibTeX XMLCite \textit{C. Herrmann}, Algebra Univers. 3, 51--58 (1973; Zbl 0288.06008) Full Text: DOI
Herrmann, Christian Quasiplanare Verbände. (German) Zbl 0275.06011 Arch. Math. 24, 240-246 (1973). MSC: 06C05 08C10 03D40 PDFBibTeX XMLCite \textit{C. Herrmann}, Arch. Math. 24, 240--246 (1973; Zbl 0275.06011) Full Text: DOI
Herrmann, Christian S-verklebte Summen von Verbänden. (German) Zbl 0275.06007 Math. Z. 130, 255-274 (1973). MSC: 06C05 06B05 06D05 PDFBibTeX XMLCite \textit{C. Herrmann}, Math. Z. 130, 255--274 (1973; Zbl 0275.06007) Full Text: DOI EuDML
Day, A.; Herrmann, C.; Wille, R. On modular lattices with four generators. (English) Zbl 0275.06010 Algebra Univers. 2, 317-323 (1972). MSC: 06C05 PDFBibTeX XMLCite \textit{A. Day} et al., Algebra Univers. 2, 317--323 (1972; Zbl 0275.06010) Full Text: DOI