Results 11 to 20 of about 19,781 (262)
Minimal monoids generating varieties with complex subvariety lattices [PDF]
Proceedings of the Edinburgh Mathematical Society, 2022 A variety is finitely universal if its lattice of subvarieties contains an isomorphic copy of every finite lattice. We show that the 6-element Brandt monoid generates a finitely universal variety of monoids and, by the previous results, it is the ...
S. V. Gusev
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Varieties of monoids with complex lattices of subvarieties [PDF]
Bulletin of the London Mathematical Society, 2020 A variety is finitely universal if its lattice of subvarieties contains an isomorphic copy of every finite lattice. Examples of finitely universal varieties of semigroups have been available since the early 1970s, but it is unknown if there exists a ...
S. V. Gusev, Edmond W. H. Lee
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Order Filter Model for Minuscule Plücker Relations [PDF]
Discrete Mathematics & Theoretical Computer Science, 2020 The Plücker relations which define the Grassmann manifolds as projective varieties are well known. Grass-mann manifolds are examples of minuscule flag manifolds.
David C Lax
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Stone Commutator Lattices and Baer Rings
Discussiones Mathematicae - General Algebra and Applications, 2022 In this paper, we transfer Davey‘s characterization for κ -Stone bounded distributive lattices to lattices with certain kinds of quotients, in particular to commutator lattices with certain properties, and obtain related results on prime, radical ...
Mureşan Claudia
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On tractability and congruence distributivity [PDF]
Logical Methods in Computer Science, 2007 Constraint languages that arise from finite algebras have recently been the object of study, especially in connection with the Dichotomy Conjecture of Feder and Vardi.
Emil Kiss, Matthew Valeriote
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The Lattice of Varieties of Implication Semigroups [PDF]
Order, 2019 Compared with the previous version, we rewrite Section 3 and add Appendixes A and ...
Sergey V. Gusev +2 more
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Varieties of Lattices with Geometric Descriptions [PDF]
Order, 2011 A lattice L is spatial if every element of L is a join of completely join-irreducible elements of L (points), and strongly spatial if it is spatial and the minimal coverings of completely join-irreducible elements are well-behaved. Herrmann, Pickering, and Roddy proved in 1994 that every modular lattice can be embedded, within its variety, into an ...
Luigi Santocanale, Friedrich Wehrung
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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
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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
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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
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