English

Properties of moduli of smoothness in $L_p(\mathbb{R}^d)$

Classical Analysis and ODEs 2020-03-26 v3

Abstract

In this paper, we discuss various basic properties of moduli of smoothness of functions from Lp(Rd)L_p(\mathbb{R}^d), 0<p0<p\le \infty. In particular, complete versions of Jackson-, Marchaud-, and Ulyanov-type inequalities are given for the whole range of pp. Moreover, equivalences between moduli of smoothness and the corresponding KK-functionals and the realization concept are proved.

Keywords

Cite

@article{arxiv.1907.12788,
  title  = {Properties of moduli of smoothness in $L_p(\mathbb{R}^d)$},
  author = {Yurii Kolomoitsev and Sergey Tikhonov},
  journal= {arXiv preprint arXiv:1907.12788},
  year   = {2020}
}