Multipliers of some Banach ideals and Wiener-Ditkin sets
Turan A. Gürkanli (2005)
Mathematica Slovaca
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Turan A. Gürkanli (2005)
Mathematica Slovaca
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Öztop, S. (2000)
International Journal of Mathematics and Mathematical Sciences
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U. B. Tewari (2007)
Colloquium Mathematicae
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Let I = (0,∞) with the usual topology. For x,y ∈ I, we define xy = max(x,y). Then I becomes a locally compact commutative topological semigroup. The Banach space L¹(I) of all Lebesgue integrable functions on I becomes a commutative semisimple Banach algebra with order convolution as multiplication. A bounded linear operator T on L¹(I) is called a multiplier of L¹(I) if T(f*g) = f*Tg for all f,g ∈ L¹(I). The space of multipliers of L¹(I) was determined by Johnson and Lahr. Let X be a...
J. Kerlin (1974)
Studia Mathematica
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R. H. Fischer, Turan A. Gürkanli, T. S. Liu (1996)
Mathematica Slovaca
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Takahasi, Sin-Ei (1991)
International Journal of Mathematics and Mathematical Sciences
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Ehrhard Behrends, Ursula Schmidt-Bichler (1981)
Studia Mathematica
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Fischer, R.H., Gürkanli, A.T., Liu, T.S. (1996)
International Journal of Mathematics and Mathematical Sciences
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Viktor Losert, Michael Grosser (1983)
Manuscripta mathematica
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Matthew Daws
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In the first part of the paper, we present a short survey of the theory of multipliers, or double centralisers, of Banach algebras and completely contractive Banach algebras. Our approach is very algebraic: this is a deliberate attempt to separate essentially algebraic arguments from topological arguments. We concentrate upon the problem of how to extend module actions, and homomorphisms, from algebras to multiplier algebras. We then consider the special cases when we have a bounded...