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In this paper we prove and discuss some new $\left( H_{p},L_{p}\right)$ type inequalities of maximal operators of $T$ means with respect to the Vilenkin systems with monotone coefficients. We also apply these inequalities to prove strong…

Classical Analysis and ODEs · Mathematics 2021-01-25 G. Tutberidze

In this paper we prove and discuss some new $\left(H_{p},weak-L_{p}\right) $ type inequalities of maximal operators of Vilenkin-N\"orlund means with monotone coefficients. We also apply these results to prove a.e. convergence of such…

Classical Analysis and ODEs · Mathematics 2015-03-19 L. E. Persson , G. Tephnadze , P. Wall

We discuss $(H_p,L_p)$ and $(H_p,\text{weak}-L_p)$ type inequalities of weighted maximal operators of $T$ means with respect to the Vilenkin systems with monotone coefficients, considered in \cite{tut4} and prove that these results are the…

Classical Analysis and ODEs · Mathematics 2022-07-13 Davit Baramidze

In this paper we prove and discuss some new $\left( H_p,L_{p,\infty}\right)$ type inequalities of the maximal operators of $T$ means with monotone coefficients with respect to Walsh-Kaczmarz system. It is also proved that these results are…

Classical Analysis and ODEs · Mathematics 2021-03-30 Nata Gogolashvili , George Tephnadze

In this paper we prove and discuss some new $\left(H_{p},L_{p}\right)$ type inequalities of maximal operators of Vilenkin-N\"orlund means with non-decreasing coefficients. We also apply these inequalities to prove strong convergence…

Classical Analysis and ODEs · Mathematics 2015-04-24 L. E. Persson , G. Tephnadze , P. Wall

In this paper we prove and discuss some new $\left( H_{p},L_{p}\right)$-type inequalities of weighted maximal operators of Vilenkin-N\"orlund means with non-increasing coefficients. These results are the best possible in a special sense. As…

Classical Analysis and ODEs · Mathematics 2015-04-23 I. Blahota , L. E. Persson , G. Tephnadze

The main aim of this paper is to investigate $\left( H_{p},L_{p,\infty }\right) $ type inequalities for maximal operators of N\"orlund means with monotone coefficients of one-dimensional Walsh-Kaczmarz system. By applying this results we…

Classical Analysis and ODEs · Mathematics 2014-12-30 George Tephnadze

The main aim of this paper is to investigate (H_{p},L_{p})-type inequalities for maximal operators of logarithmic means of one-dimensional Vilenkin-Fourier series.

Classical Analysis and ODEs · Mathematics 2014-10-23 George Tephnadze

The main aim of this paper is to investigate $\left(H_{p},L_{p}\right)$- type inequalities for the the maximal operators of N\"orlund logaritmic means, for $0<p<1.$

Classical Analysis and ODEs · Mathematics 2019-02-04 George Tephnadze , Giorgi Tutberidze

The main aim of this paper is to investigate $\left( H_{p},L_{p}\right) $ and $\left( H_{p},L_{p,\infty }\right) $ type inequalities for maximal operators of Riesz logarithmic means of one-dimensional Vilenkin-Fourier series.

Classical Analysis and ODEs · Mathematics 2014-10-30 George Tephnadze

In this paper we derive converge of $T$ means of Vilenkin-Fourier series with monotone coefficients of integrable functions in Lebesgue and Vilinkin-Lebesgue points. Moreover, we discuss pointwise and norm convergence in $L_p$ norms of such…

Classical Analysis and ODEs · Mathematics 2022-07-13 Davit Baramidze , Nato Gogolashvili , Nato Nadirashvili

In this paper we present and prove some new results concerning approximation properties of $T$ means with respect to the Vilenkin system in Lebesgue spaces and Lipschitz classes for any $1\leq p<\infty$. As applications, we obtain extension…

General Mathematics · Mathematics 2024-05-31 N. Anakidze , N. Areshidze , L. -E. Persson , G. Tephnadze

The main aim of this paper is to investigate weighted maximal operators of partial sums of Vilenkin-Fourier series. We also use our results to prove approximation and strong convergence theorems on the martingale Hardy spaces $H_{p},$ when…

Classical Analysis and ODEs · Mathematics 2014-10-29 George Tephnadze

Recently, the authors studied the connection between each maximal monotone operator T and a family H(T) of convex functions. Each member of this family characterizes the operator and satisfies two particular inequalities. The aim of this…

Functional Analysis · Mathematics 2008-02-13 Regina Sandra Burachik , B. F. Svaiter

The main aim of this paper is to prove that when $0<p<1/2$ the maximal operator $\overset{\sim }{\sigma }_{p}^{\ast }f:=\underset{n\in \mathbb{N}}{% \sup }\frac{\left\vert \sigma_{n}f\right\vert }{\left( n+1\right) ^{1/p-2}}$ is bounded…

Classical Analysis and ODEs · Mathematics 2014-10-28 George Tephnadze

In this article we characterize all possible cases that may occur in the relations between the sets of $p$ for which weak type $(p,p)$ and strong type $(p,p)$ inequalities for the Hardy--Littlewood maximal operators, both centered and…

Classical Analysis and ODEs · Mathematics 2017-09-20 Dariusz Kosz

In this paper we derive converge of N\"orlund means of Vilenkin-Fourier series with monotone coefficients of integrable functions in Lebesgue and Vilinkin-Lebesgue points. Moreover, we discuss pointwise and norm convergence in $L_p$ norms…

Classical Analysis and ODEs · Mathematics 2022-07-13 Davit Baramidze , Zura Dvalashvili , Giorgi Tutberidze

The restricted maximal operators of partial sums with respect to bounded Vilenkin systems are investigated. We derive the maximal subspace of positive numbers, for which this operator is bounded from the Hardy space $%H_{p}$ to the Lebesgue…

Classical Analysis and ODEs · Mathematics 2018-02-23 I. Blahota , K. Nagy , L. E. Persson , G. Tephnadze

In this paper we prove and discuss a new divergence result of N\"orlund logarithmic means with respect to Vilenkin system in Hardy space $H_1. $

Classical Analysis and ODEs · Mathematics 2018-02-22 L. -E. Persson , G. Tephnadze , P. Wall

In this paper we introduce some new weighted maximal operators of the partial sums of the Walsh-Fourier series. We prove that for some "optimal" weights these new operators indeed are bounded from the martingale Hardy space $H_{p}$ to the…

General Mathematics · Mathematics 2023-08-03 David Baramidze , Lars-Erik Persson , Harpal Singh , George Tephnadze
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