The local symmetry condition in the Heisenberg group
arXiv:1807.05010
Abstract
I propose an analogue in the first Heisenberg group of David and Semmes' local symmetry condition (LSC). For closed -regular sets , I show that the (LSC) is implied by the boundedness of -dimensional singular integrals with horizontally antisymmetric kernels, and that the (LSC) implies the weak geometric lemma for vertical -numbers.
17 pages, 1 figure