Logarithmic Bump With Bilinear T (B) Theorem And Maximal Singular Integral Operators

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Abstract

We show that if a pair of weights (u, ) satisfies a sharp Ap - bump condition in the scale of all log bumps certain loglog bumps , then Haar shifts map

( ) into

(u) with a constant quadratic in the complexity of the shift . This in turn implies the two weight boundedness for all Calderón – Zygmund operators. We obtain a generalized version of the former theorem valid for a larger family of Calderón – Zygmund operators in any ambient space . We present a bilinear Tb theorem for singular operators Calderón – Zygmund type. Extending the end point results obtained to maximal singular. Another consequence is a quantitative two weight bump estimate. 

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