English

A note on the Kolmogorov-type inequalities for more than three norms

Functional Analysis 2026-03-03 v1

Abstract

In this note we show that sharp Kolmogorov-type inequalities that estimate the uniform norm f(k)\|f^{(k)}\| of the kk-th derivative of a function f ⁣:RRf\colon \mathbb{R}\to\mathbb{R} by the values of the uniform norm of ff and uniform norms of several its higher derivatives (f(r)\|f^{(r)}\| and f(r1)\|f^{(r-1)}\|, or f(r)\|f^{(r)}\| and f(r2)\|f^{(r-2)}\|, or f(r)\|f^{(r)}\|, f(r1)\|f^{(r-1)}\| and f(r2)\|f^{(r-2)}\|) using standard techniques can be obtained from the known solutions to the Kolmogorov problem about existence of a function with given norms of its derivatives.

Keywords

Cite

@article{arxiv.2603.02044,
  title  = {A note on the Kolmogorov-type inequalities for more than three norms},
  author = {Oleg Kovalenko},
  journal= {arXiv preprint arXiv:2603.02044},
  year   = {2026}
}