Sharp Jackson inequalities

  • Authors:

  • F. Dai;Z. Ditzian;S. Tikhonov

  • Affiliations:

  • Department of Mathematical and Statistical Sciences, University of Alberta, Edmonton, Alta., Canada T6G 2G1;Department of Mathematical and Statistical Sciences, University of Alberta, Edmonton, Alta., Canada T6G 2G1;Scuola Normale Superiore Piazza dei Cavalieri7, Pisa, Italy, 56126

  • Venue:
  • Journal of Approximation Theory
  • Year:
  • 2008

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Abstract

For trigonometric polynomials on [-@p,@p]=T, the classical Jackson inequality E"n(f)"p=