Mathematical Inequalities & Applications · Volume 15, Issue 1 Global estimates for the maximal operator and homotopy operator 15-03 Pages 27-35 DOI 10.7153/mia-15-03 Downloads Short PDF Full PDF PNG Authors Yuming Xing Shusen Ding Keywords differential forms harmonic equations homotopy operator maximal operator Subject classes 26B10 31B10 46E35