Growth of p-th means of the Poisson-Stieltjes integrals in polydisc

Journal Title: Математичні Студії - Year 2019, Vol 52, Issue 1

Abstract

We prove a sharp upper estimate of the pth means of the Poisson-Stieltjes integrals in the unit polydisc for p>1. The estimate is given in terms of the smoothness of a complex-valued Stieltjes measure μ. If the measure μ is positive, the estimate becomes equivalent to the smoothness condition.

Authors and Affiliations

I. E. Chyzhykov, O. A. Kutnyak

Keywords

Related Articles

Approximation of periodic analytic functions by Fejer sums

For upper bounds of the deviations of Fejer sums taken over classes of periodic functions that admit analytic extensions to a fixed strip of the complex plane, we obtain asymptotic equalities. In certain cases, these equ...

International conference in functional analysis dedicated to the 125th anniversary of Stefan Banach

On March 30, 2017, the international mathematical community celebrated the 125th birthday of Stefan Banach, the famous Lviv mathematician, one of the founders of functional analysis. Dedicated to this anniversary, the In...

Distance between a maximum modulus point and zero set of an analytic function

Let f be an analytic function in the disk DR={z∈C:|z|≤R}, R∈(0,+∞]. We call a point w∈DR a maximum modulus point of f if |f(w)|=M(|w|,f), where M(r,f)=max{|f(z)|:|z|=r}. Denote by d(w,f) the distance between a maximum mo...

Cauchy, infinitesimals and ghosts of departed quantifiers

rocedures relying on infinitesimals in Leibniz, Euler and Cauchy have been interpreted in both a Weierstrassian and Robinson’s frameworks. The latter provides closer proxies for the procedures of the classical masters. T...

Hilbert transform on W1σ

We obtain a boundedness criterion for the Hilbert transform on the Paley-Wiener space in the terms of decomposition. Since we have a simple method of evaluation of the Hilbert transform.

Download PDF file
  • EP ID EP673801
  • DOI 10.30970/ms.52.1.48-54
  • Views 54
  • Downloads 0

How To Cite

I. E. Chyzhykov, O. A. Kutnyak (2019). Growth of p-th means of the Poisson-Stieltjes integrals in polydisc. Математичні Студії, 52(1), 48-54. https://europub.co.uk/articles/-A-673801