On the maximal operators of Riesz logarithmic means of Vilenkin-Fourier   series
  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. 
George Tephnadze
math.CA math.FA