Results 1 to 10 of about 19,682 (163)
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.
A. Day, J. Jezek
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Fuzzy Sets and Systems, 2022 In this paper we deal with varieties of commutative residuated lattices that arise from a specific kind of construction: the {\em twist-product} of a lattice. Twist-products were first considered by Kalman in 1958 to deal with order involutions on plain lattices, but the extension of this concept to residuated lattices has attracted some attention ...
Paolo Agliano'
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Artificial kagome lattices of Shockley surface states patterned by halogen hydrogen-bonded organic frameworks [PDF]
Nature CommunicationsArtificial electronic kagome lattices may emerge from electronic potential landscapes using customized structures with exotic supersymmetries, benefiting from the confinement of Shockley surface-state electrons on coinage metals, which offers a flexible ...
Ruoting Yin +16 more
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Topological mechanical metamaterial for robust and ductile one-way fracturing [PDF]
Nature CommunicationsFracturing is unavoidable and threatens the reliability and functionality of materials. Therefore, regulating the propagation of cracks in a predictable and ductile manner is of paramount importance.
Xinyu Wang +3 more
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Varieties of Orthomodular Lattices
Canadian Journal of Mathematics, 1971 In this paper we start investigating the lattice of varieties of orthomodular lattices. The varieties studied here are those generated by orthomodular lattices which are the horizontal sum of Boolean algebras. It turns out that these form a principal ideal in the lattice of all varieties of orthomodular lattices.
G. Bruns, G. Kalmbach
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Varieties of bounded K-lattices
Fuzzy Sets and Systems, 2022 In this paper we continue to study varieties of K-lattices, focusing on their bounded versions. These (bounded) commutative residuated lattices arise from a specific kind of construction: the {\em twist-product} of a lattice. Twist-products were first considered by Kalman in 1958 to deal with order involutions on plain lattices, but the extension of ...
Paolo Agliano'
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“Polymerization” of Bimerons in Quasi-Two-Dimensional Chiral Magnets with Easy-Plane Anisotropy [PDF]
NanomaterialsWe re-examine the internal structure of bimerons, which are stabilized in easy-plane chiral magnets and represent coupled states of two merons with the same topological charge |1/2| but with opposite vorticity and the polarity.
Natsuki Mukai, Andrey O. Leonov
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On lattices of varieties of restriction semigroups
Semigroup Forum, 2013 In the abstract of the paper the author writes: ``The left restriction semigroups have arisen in a number of contexts, one being as the abstract characterization of semigroups of partial maps, another as the `weakly left E-ample' semigroups of the `York school', and, more recently as a variety of unary semigroups defined by a set of simple identities.''
Peter R. Jones
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VARIETIES OF ORTHOMODULAR LATTICES WITH A STRONGLY FULL SET OF STATES
Demonstratio Mathematica, 1981 1. I n t r o d u c t i o n I n t h i s paper we study some e q u a t i o n a l c l a s s e s of o r t h o modular l a t t i c e s . The l a t t i c e of v a r i e t i e s of orthomodular l a t t i c e s has been s tudied by Bruns and Kalmbach ( [ l ] , [
R. Godowski
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Strictly join irreducible varieties of residuated lattices [PDF]
Journal of Logic and Computation, 2021 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.
P. Aglianó, S. Ugolini
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