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Analysis Seminar – Joshua Isralowitz (SUNY Albany)
November 22, 2019 @ 3:00 pm - 4:00 pm
Title: Sparse domination of commutators via matrix techniques
Abstract: In this talk, we will show how one can obtain sparse domination of iterated commutators from a convex body domination of an operator via a simple algebraic trick. Time permitting, we discuss consequences and related results, such as a bumped Orlicz BMO type sufficient condition for the two weight boundedness of iterated commutators with a CZO and a related umbumped necessary two weight bound for Riesz transforms (both with arbitrary, not necessarily Ap, weights).