Boundedness of commutators and H-BMO duality in the two matrix weighted setting
arXiv:1511.02926
Abstract
In this paper we characterize the two matrix weighted boundedness of commutators with any of the Riesz transforms (when both are matrix A weights) in terms of a natural two matrix weighted BMO space. Furthermore, we identify this BMO space when as the dual of a natural two matrix weighted H space, and use our commutator result to provide a converse to Bloom's matrix A theorem, which as a very special case proves Buckley's summation condition for matrix A weights. Finally, we use our results to prove a matrix weighted John-Nirenberg inequality, and we also briefly discuss the challenging question of extending our results to the matrix weighted vector BMO setting.
v3: 36 pages, no figures, updated bibliography, typos corrected, simplified proof of b) implies a) in Theorem 2.2, to appear in the journal Integral Equations and Operator Theory