scholarly journals Almost everywhere convergence of Fejér and logarithmic means of subsequences of partial sums of the Walsh–Fourier series of integrable functions

2010 ◽  
Vol 162 (4) ◽  
pp. 687-708 ◽  
Author(s):  
György Gát
Keyword(s):  
Fourier Series ◽  
Partial Sums ◽  
Almost Everywhere Convergence ◽  
Almost Everywhere ◽  
Integrable Functions ◽  
Logarithmic Means

scholarly journals Almost everywhere convergence of Cesàro means of two variable Walsh – Fourier series with varying parameteres

2021 ◽  
Vol 73 (3) ◽  
pp. 291-307
Author(s):  
A. A. Abu Joudeh ◽  
G. G´at
Keyword(s):  
Fourier Series ◽  
Maximal Operator ◽  
Weak Type ◽  
Partial Sums ◽  
Cesàro Means ◽  
Almost Everywhere Convergence ◽  
Almost Everywhere ◽  
Integrable Functions ◽  
Walsh Group ◽  
Cesáro Means

UDC 517.5 We prove that the maximal operator of some means of cubical partial sums of two variable Walsh – Fourier series of integrable functions is of weak type . Moreover, the -means of the function converge a.e. to for , where is the Walsh group for some sequences .

scholarly journals Walsh-Fourier series with coefficients of generalized bounded variation

1989 ◽  
Vol 47 (3) ◽  
pp. 458-465 ◽  
Author(s):  
F. Móricz
Keyword(s):  
Fourier Series ◽  
Bounded Variation ◽  
Real Numbers ◽  
Almost Everywhere Convergence ◽  
Almost Everywhere ◽  
Integrable Functions

AbstractWe extend in different ways the class of null sequences of real numbers that are of bounded variation and study the Walsh-Fourier series of integrable functions on the interval [(0, 1) with such coefficients. We prove almost everywhere convergence as well as convergence in the pseu dometric of Lr(0, 1) for 0 < r < 1.

Almost Everywhere Convergence of (𝐶, α)-Means of Quadratical Partial Sums of Double Vilenkin–Fourier Series

2006 ◽  
Vol 13 (3) ◽  
pp. 447-462
Author(s):  
György Gát ◽  
Ushangi Goginava
Keyword(s):  
Fourier Series ◽  
Maximal Operator ◽  
Weak Type ◽  
Partial Sums ◽  
Almost Everywhere Convergence ◽  
Almost Everywhere

Abstract We prove that the maximal operator of the (𝐶, α)-means of quadratical partial sums of double Vilenkin–Fourier series is of weak type (1,1). Moreover, the (𝐶, α)-means of a function 𝑓 ∈ 𝐿1 converge a.e. to 𝑓 as 𝑛 → ∞.

scholarly journals Maximal summability operators on the dyadic hardy spaces

Filomat ◽  
2021 ◽  
Vol 35 (7) ◽  
pp. 2189-2208
Author(s):  
Ushangi Goginava ◽  
Salem Said
Keyword(s):  
Fourier Series ◽  
Hardy Spaces ◽  
Maximal Operators ◽  
Almost Everywhere Convergence ◽  
Varying Parameters ◽  
Almost Everywhere ◽  
Logarithmic Means

It is proved that the maximal operators of subsequences of N?rlund logarithmic means and Ces?ro means with varying parameters of Walsh-Fourier series is bounded from the dyadic Hardy spaces Hp to Lp. This implies an almost everywhere convergence for the subsequences of the summability means.

Sign in / Sign up

Export Citation Format

Share Document