Rate of Convergence in Sobolev Space

Sevilay Kırcı Serenbay, Hande Tanberkan


In this paper, a new theorem on degree of approximation in


L2 p() Sobolev space of integrable functions of two variables by Bernstein-Chlodowsky polnomials on an unbounded triangular domain is studied. Also by using the K- functional of Peetre the order of approximation are established.


Bernstein -Chlodowsky polynomials, convergence, absolutely continuous, function, L2 Hardy-Littlewood majorante, K - functional of Peetre

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