A course in universal algebra S Burris, HP Sankappanavar Graduate Texts Math 78, 56, 1981 | 4707 | 1981 |
Semi-de Morgan algebras HP Sankappanavar The Journal of symbolic logic 52 (3), 712-724, 1987 | 84 | 1987 |
A characterization of principal congruences of De Morgan algebras and its applications HP Sankappanavar Studies in Logic and the Foundations of Mathematics 99, 341-349, 1980 | 62 | 1980 |
Semi-Heyting algebras: an abstraction from Heyting algebras HP Sankappanavar Actas del IX Congreso Dr. A. Monteiro, 33-66, 2007 | 61 | 2007 |
Heyting algebras with a dual lattice endomorphism HP Sankappanavar Mathematical Logic Quarterly 33 (6), 565-573, 1987 | 52 | 1987 |
Heyting algebras with dual pseudocomplementation. HP Sankappanavar | 45 | 1985 |
Pseudocomplemented Ockham and de Morgan algebras HP Sankappanavar Zeitschrift für mathematische Logik und Grundlagen der Mathematik 32, 385-396, 1986 | 40 | 1986 |
Principal congruences of pseudocomplemented Demorgan algebras HP Sankappanavar Zeitschrift f r Mathematische Logik und Grundlagen der Mathematik 33 (1), 3-11, 1987 | 33 | 1987 |
A course in universal algebra B Stanley, HP Sankappanavar Graduate Texts in Mathematics 78, 1981 | 32 | 1981 |
Demi-pseudocomplemented lattices: principal congruences and subdirect irreducibility HP Sankappanavar Algebra Universalis 27, 180-193, 1990 | 31 | 1990 |
Expansions of semi-Heyting algebras I: Discriminator varieties HP Sankappanavar Studia Logica 98, 27-81, 2011 | 27 | 2011 |
Distributive lattices with a dual endomorphism HP Sankappanavar Mathematical Logic Quarterly 31 (25‐28), 385-392, 1985 | 27 | 1985 |
Lattice-theoretic decision problems in universal algebra S Burris, HP Sankappanavar Algebra Universalis 5 (1), 163-177, 1975 | 26 | 1975 |
Quasi‐Stone algebras NH Sankappanavar, HP Sankappanavar Mathematical Logic Quarterly 39 (1), 255-268, 1993 | 19 | 1993 |
Decision problems: history and methods HP Sankappanavar Math. Logic. Proc. First Brazil. Conf, 241-291, 1977 | 17 | 1977 |
De Morgan Algebras: New Perspectives and Applications HP Sankappanavar Scientiae Mathematicae Japonicae 75 (1), 139-168, 2012 | 14 | 2012 |
Congruence lattices of pseudocomplemented semilattices HP Sankappanavar Algebra Universalis, 1979 | 13 | 1979 |
A course in universal algebra: The millennium edition, 2000 S Burris, HP Sankappanavar | 13 | |
Semisimple varieties of implication zroupoids JM Cornejo, HP Sankappanavar Soft Computing 20 (8), 3139-3151, 2016 | 12 | 2016 |
A course in universal algebra. 1981 S Burris, HP Sankappanavar Graduate texts in mathematics, 1981 | 12 | 1981 |