Some remarks on (p,q)-absolutely summing operators in -spaces
S. Kwapień (1968)
Studia Mathematica
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S. Kwapień (1968)
Studia Mathematica
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J. Janas (1988)
Studia Mathematica
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Vijay Gupta (1995)
Publicacions Matemàtiques
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In the present paper, we prove a global direct theorem for the modified Baskakov type operators in terms of so called Ditzian-Totik modulus of smoothness.
Dumitru Popa (1997)
Collectanea Mathematica
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Schmeelk, John, Takaci, Arpad (1992)
Portugaliae mathematica
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J. López Molina, E. Sánchez Pérez (2000)
Studia Mathematica
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We study tensor norms and operator ideals related to the ideal , 1 < p < ∞, 0 < σ < 1, of (p,σ)-absolutely continuous operators of Matter. If α is the tensor norm associated with (in the sense of Defant and Floret), we characterize the -nuclear and - integral operators by factorizations by means of the composition of the inclusion map with a diagonal operator , where r is the conjugate exponent of p’/(1-σ). As an application we study the reflexivity of the components...
Ian Doust, Byron Walden (1996)
Studia Mathematica
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We prove that compact AC-operators have a representation as a combination of disjoint projections which mirrors that for compact normal operators. We also show that unlike arbitrary AC-operators, compact AC-operators admit a unique splitting into real and imaginary parts, and that these parts must necessarily be compact.
A. Pełczyński (1967)
Studia Mathematica
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