Equivalence Between K-functionals Based on Continuous Linear Transforms


Autoria(s): Draganov, Borislav; Ivanov, Kamen
Data(s)

20/07/2016

20/07/2016

2007

Resumo

2000 Mathematics Subject Classification: 46B70, 41A10, 41A25, 41A27, 41A35, 41A36, 42A10.

The paper presents a method of relating two K-functionals by means of a continuous linear transform of the function. In particular, a characterization of various weighted K-functionals by unweighted fixed-step moduli of smoothness is derived. This is applied in estimating the rate of convergence of several approximation processes.

Partially supported by grant No. 103/2007 of the National Science Fund of the Sofia University.

Identificador

Serdica Mathematical Journal, Vol. 33, No 4, (2007), 475p-494p

1310-6600

http://hdl.handle.net/10525/2572

Idioma(s)

en

Publicador

Institute of Mathematics and Informatics Bulgarian Academy of Sciences

Palavras-Chave #K-Functional #Modulus of Smoothness #Rate of Convergence #Best Approximation #Linear Operator
Tipo

Article