Approximation by Modified Summation Integral Type Operators in the $L_p$ Spaces
Received:October 05, 2007  Revised:July 07, 2008
Key Words: Beta operators   $K$-functional   moduli of smoothness   Riesz-Thorin interpolation theorem   H\"{o}lder inequality.  
Fund Project:the National Natural Science Foundation of China (No.10571040).
Author NameAffiliation
QI Qiu Lan College of Mathematics and Information Science, Hebei Normal University, Hebei 050016, China 
GUO Shun Sheng College of Mathematics and Information Science, Hebei Normal University, Hebei 050016, China 
LI Jian Kun College of Mathematics and Information Science, Hebei Normal University, Hebei 050016, China 
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Abstract:
      The generalized summation integral type operators with Beta basis functions are widely studied. At present, the investigations for the properties of these operators are only limited to the functions of bounded variation. Some authors studied the rate of point-wise rate of convergence, asymptotic formula of Voronovskaja type, and some direct results about these type of operators. The present paper considers the direct, inverse and equivalence theorems of modified summation integral type operators in the $L_p$ spaces.
Citation:
DOI:10.3770/j.issn:1000-341X.2009.06.017
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