Geodesic
Subdirectly irreducible groupoids in some varieties
Commentationes Mathematicae Universitatis Carolinae, Tome 24 (1983) no. 4, pp. 631-645 Cet article a éte moissonné depuis la source Czech Digital Mathematics Library

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Classification : 08A30, 08B05, 08B15, 08B20, 20L05 
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}
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Płonka, Jerzy. Subdirectly irreducible groupoids in some varieties. Commentationes Mathematicae Universitatis Carolinae, Tome 24 (1983) no. 4, pp. 631-645. http://geodesic.mathdoc.fr/item/CMUC_1983_24_4_a4/

[1] J. DUDEK: A new characterization of groupoids with at most n essentially $n$-ary polynomials. Bull. de la Soc. Royale des Sol. de Liège, 48, n° 9-10 (1980), 390-392. | MR | Zbl

[2] G. GRÄTZER: Universal algebra. Springer-Verlag, 1979. | MR

[3] J. PŁONKA: On algebras with n distinct essentially $n$-ary operations. Algebra Universalis, vol. 1 , fasc. 1 (1971), 73-79. | MR

[4] J. PŁONKA: Subdirectly irreducible algebras with exactly $n$ essentially $n$-ary polynomials. to appear.