$(H_p-L_p)$ type inequalities for subsequences of Nörlund means of Walsh-Fourier series

David Baramidze, Lars-Erik Persson, Kristoffer Tangrand +1

We investigate the subsequence $\{t_{2^n}f\}$ of Nörlund means with respect to the Walsh system generated by non-increasing and convex sequences. In particular, we prove that a bi…