Results 11 to 20 of about 35 (32)

Varieties of Distributive Rotational Lattices [PDF]

, 2013
summary:A rotational lattice is a structure $\langle L;\vee ,\wedge , g\rangle $ where $L=\langle L;\vee ,\wedge \rangle $ is a lattice and $g$ is a lattice automorphism of finite order.
Czédli, Gábor, Nagy, Ildikó V.
core   +1 more source

Homomorphisms of heterogeneous algebras [PDF]

, 1970
summary:A construction of all homomorphisms of a heterogeneous algebra into an algebra of the same type is presented. A relational structure is assigned to any heterogeneous algebra, and homomorphisms between these relational structures make it possible ...
Birkhoff, Garrett, Miroslav Novotný, Novotný, Miroslav, Lipson, John D., Marinković, Bojan, Krapež, Aleksandar   +5 more
core   +1 more source

Radicals of 0-regular algebras

, 2006
We consider a generalisation of the Kurosh--Amitsur radical theory for rings (and more generally multi-operator groups) which applies to 0-regular varieties in which all operations preserve 0.
McConnell, N. R., N. R. McConnell, Stokes, Tim E., Tim Stokes   +3 more
core   +1 more source

Weak alg-universality and $Q$-universality of semigroup quasivarieties [PDF]

, 2005
summary:In an earlier paper, the authors showed that standard semigroups $\bold M_1$, $\bold M_2$ and $\bold M_3$ play an important role in the classification of weaker versions of alg-universality of semigroup varieties.
V. Koubek, M. Demlová, Demlová, M., Koubek, V., Marie Demlová, Václav Koubek   +5 more
core  

Finitely generated almost universal varieties of 0-lattices [PDF]

, 2005
... has a full embedding into K, and K is almost universal if there is a class C of K-objects such that all non-constant homomorphisms between them form a universal category.
J. Sichler, V. Koubek, Koubek, V., Sichler, J.   +3 more
core  

On universality of semigroup varieties [PDF]

, 2006
summary:A category $K$ is called $\alpha $-determined if every set of non-isomorphic $K$-objects such that their endomorphism monoids are isomorphic has a cardinality less than $\alpha $.
Demlová, Marie, Koubek, Václav
core  

Algebrai struktúrák és algoritmusok = Algebraic structures and algorithms

, 2009
A pályázat keretében három témakörben --- általános algebra, félcsoportelmélet és döntési problémák bonyolultsága --- nyertünk eredményeket. A kutatás jelentős része hazai, illetve külföldi kutatókkal való együttműködésben született.
Szabó, László, Maróti, Miklós, Hartmann, Miklós, Waldhauser, Tamás, Zádori, László, B. Szendrei, Mária, Szendrei, Ágnes   +6 more
core  

Structure of lattices of varieties and lattices of quasivarieties: Similarity and difference. I

Algebra and Logic, 1995
V A Gorbunov, Gorbunov V A
exaly  

Localizations of varieties and quasivarieties

Journal of Pure and Applied Algebra, 2000
Maria Cristina Pedicchio
exaly  

Structure of lattices of varieties and lattices of quasivarieties: Similarity and difference. II

Algebra and Logic, 1995
V A Gorbunov, Gorbunov V A
exaly