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Zelinka, Bohdan
Representation of undirected graphs by anticommutative conservative groupoids. (English). Mathematica Bohemica, vol. 119 (1994), issue 3, pp. 231-237
MSC: 05C25, 05C99, 08A30, 20L05, 20N02 | MR 1305526 | Zbl 0828.20074 | DOI: 10.21136/MB.1994.126168
Keywords:
anticommutative conservative groupoids; undirected graphs; tolerances; congruences; anticommutative groupoid; conservative groupoid
Summary:
The paper studies tolerances and congruences on anticommutative conservative groupoids. These groupoids can be assigned in a one-to-one way to undirected graphs.
References:
[1] G. F. McNulty, C. R. Shallon: Inheгently nonfinitely based finite algebras. Lectuгes Notes Math.1004 (1983), 206-231. MR 0716184
[2] L. Nebeský: Algebraic properties of trees. Charles Univ., Pгague, 1969. MR 0274210
[3] R. Pöschel: Graph varieties. (preprint). Institut der Mathematik, Akad. Wiss. DDR, Berlin, 1985.
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