On the best polynomial approximation in some Banach spaces for functions analytical in the unit disk

1994 ◽  
Vol 55 (4) ◽  
pp. 338-343 ◽  
Author(s):  
S. B. Vakarchuk
Keyword(s):  
Banach Spaces ◽  
Unit Disk ◽  
Polynomial Approximation ◽  
Best Polynomial Approximation

Best polynomial approximation in Sobolev-Laguerre and Sobolev-Legendre spaces

2002 ◽  
Vol 18 (4) ◽  
pp. 551-568 ◽  
Author(s):  
D. H. Kim ◽  
S. H. Kim ◽  
K. H. Kwon ◽  
Xin Li
Keyword(s):  
Polynomial Approximation ◽  
Best Polynomial Approximation

scholarly journals Generalized Order and Best Approximation of Entire Function in -Norm

2010 ◽  
Vol 2010 ◽  
pp. 1-15 ◽  
Author(s):  
Mohammed Harfaoui
Keyword(s):  
Entire Function ◽  
Polynomial Approximation ◽  
Best Approximation ◽  
Extremal Function ◽  
Entire Functions ◽  
Complex Variables ◽  
Several Complex Variables ◽  
Best Polynomial Approximation ◽  
Growth Of Entire Functions

The aim of this paper is the characterization of the generalized growth of entire functions of several complex variables by means of the best polynomial approximation and interpolation on a compact with respect to the set , where is the Siciak extremal function of a -regular compact .

scholarly journals Composition operators on some Möbius invariant Banach spaces

2000 ◽  
Vol 62 (1) ◽  
pp. 1-19 ◽  
Author(s):  
Shamil Makhmutov ◽  
Maria Tjani
Keyword(s):  
Banach Space ◽  
Banach Spaces ◽  
Unit Disk ◽  
Composition Operator ◽  
Composition Operators ◽  
Bloch Space ◽  
Holomorphic Functions ◽  
Mean Oscillation

We characterise the compact composition operators from any Mobius invariant Banach space to VMOA, the space of holomorphic functions on the unit disk U that have vanishing mean oscillation. We use this to obtain a characterisation of the compact composition operators from the Bloch space to VMOA. Finally, we study some properties of hyperbolic VMOA functions. We show that a function is hyperbolic VMOA if and only if it is the symbol of a compact composition operator from the Bloch space to VMOA.

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