Acta mathematica scientia,Series A ›› 2005, Vol. 25 ›› Issue (1): 11-20.

• Articles • Previous Articles     Next Articles

The Steckin Marchaud Type Inequality of Weighted Approximation by Modified Lagrange Interpolation Operators at Disturbed Nodes

 CHENG Bao-Fu   

  • Online:2005-02-25 Published:2005-02-25
  • Supported by:

    国家自然科学基金、浙江省自然科学基金及宁波市青年博士基金(2004A62001)资助

Abstract:

The Marcinkiewicz Zygmund inequality at disturbed ultraspherical nodes is established with which and a new kind if K functional the St eckin Marchaud type inequality for lower estimates of modified Lagrange interpolation operator at disurbed ultrasperical nodes id presented.

Key words: Lagrange interpolation,Marchinkiesicz zygmund inequality,Apporximation,Steckin Marchaud inequality

CLC Number: 

  • 41A25
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