Balayage by Fourier transforms with sparse frequencies in compact abelian groups
George S. Shapiro (1981)
Colloquium Mathematicae
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George S. Shapiro (1981)
Colloquium Mathematicae
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J. Florek (1987)
Colloquium Mathematicae
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María L. Torres de Squire (1993)
Publicacions Matemàtiques
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We extend to locally compact abelian groups, Fejer's theorem on pointwise convergence of the Fourier transform. We prove that lim φ * f(y) = f (y) almost everywhere for any function f in the space (L, l)(G) (hence in L(G)), 2 ≤ p ≤ ∞, where {φ} is Simon's generalization to locally compact abelian groups of the summability Fejer Kernel. Using this result, we extend to locally compact abelian groups a theorem of F. Holland on the Fourier transform of unbounded measures of type q. ...
Anne C. Morel (1968)
Colloquium Mathematicae
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Krzysztof Krupiński (2005)
Fundamenta Mathematicae
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Kharazishvili, Aleksander (2015-11-18T12:34:03Z)
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Fred Clare (1976)
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Thomas A. Fournelle (1979)
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N. I. Kryuchkov (2012)
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Paul Hill, Charles Megibben (1985)
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Janusz Dronka, Bronislaw Wajnryb, Paweł Witowicz, Kamil Orzechowski (2017)
Open Mathematics
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We present a simple constructive proof of the fact that every abelian discrete group is uniformly amenable. We improve the growth function obtained earlier and find the optimal growth function in a particular case. We also compute a growth function for some non-abelian uniformly amenable group.
Manfred Dugas, John Irwin (1992)
Forum mathematicum
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Michael Pannenberg (1990)
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Peter H. Schmitt (1984)
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Terence M. Gagen (1965)
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Colin C. Graham (1978)
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Colin C. Graham (1977)
Colloquium Mathematicae
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