Let 𝔾 be a homogeneousgroup on ℝⁿ whose multiplication and inverse operations are polynomial maps. In 1999, T. Tao proved that the singular integral operator with Llog⁺L function kernel on ≫ is both of type (p,p) and of weak type (1,1). In this paper, the same results are proved for the Littlewood-Paley g-functions on 𝔾
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-sm195-1-4, author = {Yong Ding and Xinfeng Wu}, title = {Littlewood-Paley g-functions with rough kernels on homogeneous groups}, journal = {Studia Mathematica}, volume = {192}, year = {2009}, pages = {51-86}, zbl = {1178.42017}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm195-1-4} }
Yong Ding; Xinfeng Wu. Littlewood-Paley g-functions with rough kernels on homogeneous groups. Studia Mathematica, Tome 192 (2009) pp. 51-86. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm195-1-4/