Results 11 to 20 of about 165,943,886 (264)
The Amalgamation Property for Varieties of Lattices [PDF]
Transactions of the American Mathematical Society, 1984 There are precisely three varieties of lattices that satisfy the amalgamation property: trivial lattices, distributive lattices, and all lattices.
Day, Alan, Ježek, Jaroslav
openaire +2 more sources
Pointed Lattice Subreducts of Varieties of Residuated Lattices [PDF]
OrderAbstract We study the pointed lattice subreducts of varieties of residuated lattices (RLs) and commutative residuated lattices (CRLs), i.e. lattice subreducts expanded by the constant $$\textsf{1}$$
Přenosil, Adam
core +5 more sources
Strictly join irreducible varieties of residuated lattices [PDF]
, 2022 We study (strictly) join irreducible varieties in the lattice of subvarieties of residuated lattices. We explore the connections with well-connected algebras and suitable generalizations, focusing in particular on representable varieties.
Ugolini, Sara, Aglianò, Paolo
core +1 more source
Principal and syntactic congruences in congruence-distributive and congruence-permutable varieties [PDF]
, 2008 We give a new proof that a finitely generated congruence-distributive variety has finitely determined syntactic congruences (or, equivalently, term finite principal congruences), and show that the same does not hold for finitely generated congruence ...
McKenzie, Ralph +3 more
core +1 more source
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
Ideals and congruences in $L$-algebras and pre-$L$-algebras [PDF]
Categories and General Algebraic Structures with ApplicationsWe link the recent theory of $L$-algebras to previous notions of Universal Algebra and Categorical Algebra concerning subtractive varieties, commutators, multiplicative lattices, and their spectra.
Marino Gran +2 more
doaj +1 more source
Moduli space singularities for 3d N = 4 $$ \mathcal{N}=4 $$ circular quiver gauge theories
Journal of High Energy Physics, 2018 The singularity structure of the Coulomb and Higgs branches of good 3d N = 4 $$ \mathcal{N}=4 $$ circular quiver gauge theories (CQGTs) with unitary gauge groups is studied. The central method employed is the Kraft-Procesi transition. CQGTs are described
Jamie Rogers, Radu Tatar
doaj +1 more source
Simple and subdirectly irreducibles bounded distributive lattices with unary operators
International Journal of Mathematics and Mathematical Sciences, 2006 We characterize the simple and subdirectly irreducible distributive algebras in some varieties of distributive lattices with unary operators, including topological and monadic positive modal algebras. Finally, for some varieties of Heyting algebras with
Sergio Arturo Celani
doaj +1 more source
On the lattice of varieties of bands of groups [PDF]
Pacific Journal of Mathematics, 1980 1* Introduction* When considered as semigroups with an additional unary operation x —> x~\ where x~ denotes the (unique) inverse of x in the subgroup to which it belongs, the class CR of completely regular semigroups (often called unions of groups) forms a variety of universal algebras, containing as a subvariety thevariety BG of bands of groups (those
Hall, T. E., Jones, P. R.
openaire +3 more sources
The Order of Hypersubstitutions of Type (2,1)
International Journal of Mathematics and Mathematical Sciences, 2011 Hypersubstitutions are mappings which map operation symbols to terms of the corresponding arities. They were introduced as a way of making precise the concept of a hyperidentity and generalizations to 𝑀-hyperidentities.
Tawhat Changphas, Wonlop Hemvong
doaj +1 more source