The automorphisms groups of symmetric algebras
Ernest Płonka (1970)
Colloquium Mathematicae
Bludov, V.V. (2002)
Sibirskij Matematicheskij Zhurnal
H. Sezinando (1992)
Semigroup forum
Oldřich Kopeček (1977)
Czechoslovak Mathematical Journal
Josef Niederle, Libor Polák (1979)
Colloquium Mathematicae
Harry Gronshor (1972)
Fundamenta Mathematicae
William Cornish (1977)
Fundamenta Mathematicae
Robert M. Vancko (1974)
Colloquium Mathematicae
Jiří Adámek, Václav Koubek, Věra Pohlová (1972)
Acta Universitatis Carolinae. Mathematica et Physica
Pinus, A.G. (2007)
Sibirskij Matematicheskij Zhurnal
Kopamu, Samuel J.L. (1996)
Portugaliae Mathematica
J.I. Garcia (1991)
Semigroup forum
Radelecki, Sándor (1992)
Mathematica Pannonica
Czédli, G. (1994)
Acta Mathematica Universitatis Comenianae. New Series
Stephen D. Comer (1979)
Mathematische Zeitschrift
Ivan Chajda (1995)
Mathematica Slovaca
Ivan Chajda (1997)
Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
Ewa Graczyńska, Dietmar Schweigert (2007)
Discussiones Mathematicae - General Algebra and Applications
Derived varieties were invented by P. Cohn in [4]. Derived varieties of a given type were invented by the authors in [10]. In the paper we deal with the derived variety of a given variety, by a fixed hypersubstitution σ. We introduce the notion of the dimension of a variety as the cardinality κ of the set of all proper derived varieties of V included in V. We examine dimensions of some varieties in the lattice of all varieties of a given type τ. Dimensions of varieties of lattices and all subvarieties...
Basarab, Şerban (2001)
Analele Ştiinţifice ale Universităţii “Ovidius" Constanţa. Seria: Matematică
Ivan Chajda (1988)
Mathematica Slovaca