Characterization of two-parameter matrix valued BMO by commutator with the Hilbert Transform

Fecha

2018

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artículo original

Autores

Mena Arias, Darío Alberto

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In this paper, we prove that the space of two parameter matrix-valued BMO functions can be characterized by considering iterated commutators with the Hilbert transform. The upper estimate relies on Petermichl's representation of the Hilbert transform as an average of dyadic shifts and the boundedness of certain paraproduct operators, while the lower bound follows Ferguson and Lacey's proof for the scalar case.

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MATHEMATICS

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