Generalized -lattices of order ω+
T. Traczyk, W. Zarębski (1976)
Colloquium Mathematicae
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T. Traczyk, W. Zarębski (1976)
Colloquium Mathematicae
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George Grätzer, David Kelly (1984)
Colloquium Mathematicae
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George Grätzer, David Kelly (1986)
Colloquium Mathematicae
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Tomasz Brengos (2008)
Discussiones Mathematicae - General Algebra and Applications
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This paper shows basic properties of covariety lattices. Such lattices are shown to be infinitely distributive. The covariety lattice of subcovarieties of a covariety K of F-coalgebras, where F:Set → Set preserves arbitrary intersections is isomorphic to the lattice of subcoalgebras of a -coalgebra for some cardinal κ. A full description of the covariety lattice of Id-coalgebras is given. For any topology τ there exist a bounded functor F:Set → Set and a covariety K of F-coalgebras,...
W. Zarębski (1977)
Colloquium Mathematicae
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Wolfgang Rump (2001)
Colloquium Mathematicae
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We extend our module-theoretic approach to Zavadskiĭ’s differentiation techniques in representation theory. Let R be a complete discrete valuation domain with quotient field K, and Λ an R-order in a finite-dimensional K-algebra. For a hereditary monomorphism u: P ↪ I of Λ-lattices we have an equivalence of quotient categories which generalizes Zavadskiĭ’s algorithms for posets and tiled orders, and Simson’s reduction algorithm for vector space categories. In this article we replace...
Scott Duke Kominers, Zachary Abel (2008)
Journal de Théorie des Nombres de Bordeaux
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We show that if is an extremal even unimodular lattice of rank with , then is generated by its vectors of norms and . Our result is an extension of Ozeki’s result for the case .
R. B. McFeat
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CONTENTSPart I1. Introduction...................................................................................................................................................... 52. Preliminaries.................................................................................................................................................. 62.1. Notation...........................................................................................................................................................
Antonio S. Granero, Marcos Sánchez (2008)
Banach Center Publications
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If X is a Banach space and C ⊂ X a convex subset, for x** ∈ X** and A ⊂ X** let d(x**,C) = inf||x**-x||: x ∈ C be the distance from x** to C and d̂(A,C) = supd(a,C): a ∈ A. Among other things, we prove that if X is an order-continuous Banach lattice and K is a w*-compact subset of X** we have: (i) and, if K ∩ X is w*-dense in K, then ; (ii) if X fails to have a copy of ℓ₁(ℵ₁), then ; (iii) if X has a 1-symmetric basis, then .
Kôji Honda (1968)
Studia Mathematica
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