%0 Journal Article %T Remarks on square functions in the Littlewood-Paley theory %A Shuichi Sato %J Mathematics %D 1998 %I arXiv %X We prove that certain square function operators in the Littlewood-Paley theory defined by the kernels without any regularity are bounded on Lp spaces. %U http://arxiv.org/abs/math/9809046v1