TRIGONOMETRIC JACKSON INTEGRALS APPROXIMATION BY A k-GENERALIZED MODULUS OF SMOOTHNESS
Authors
Hawraa Abbas Almurieb
Department of Mathematics, College of Education for Pure Sciences,
University of Babylon
Zainab Abdulmunim Sharba
Computer Science Department, College of Science for Women,
University of Babylon
Mayada Ali Kareem
Department of Mathematics, College of Education for Pure Sciences,
University of Babylon
Abstract
The need for smoothness measures emerged by mathematicians working in the fields of approximation theory, functional analysis and real analysis. In the present paper, anew version of generalized modulus of smoothness is studied. The aim of defining that modulus,is to find the degree of best Lp functions approximation via trigonometric polynomials.We benefit from Jackson integrals to arrive to the essential approximation theorems