New Moduli of Smoothness

نویسندگان

  • K. A. Kopotun
  • D. Leviatan
  • I. A. Shevchuk
چکیده

We discuss various properties of the new modulus of smoothness ω k,r (f, t)p := sup 0<h6t ‖W kh(·)∆khφ(·)(f , ·)‖Lp [−1,1], where φ(x) := √ 1− x2 and Wδ(x) = ( (1−x−δφ(x)/2)(1+x−δφ(x)/2) )1/2 . Related moduli with more general weights are also considered.

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تاریخ انتشار 2014