Mathematical Inequalities & Applications · Volume 12, Issue 2 The weak type inequality for the maximal operator of the Marcinkiewicz-Fejér means of the two-dimensional Walsh-Kaczmarz system 12-19 Pages 227-238 DOI 10.7153/mia-12-19 Downloads Short PDF Full PDF PNG Authors Ushangi Goginava Keywords Walsh function Hardy space maximal operator Subject classes 42C10