Abstract
In this paper we extend the theory of two weight, \(A_p\) bump conditions to the setting of matrix weights. We prove two matrix weight inequalities for fractional maximal operators, fractional and singular integrals, sparse operators and averaging operators. As applications we prove quantitative, one weight estimates, in terms of the matrix \(A_p\) constant, for singular integrals, and prove a Poincaré inequality related to those that appear in the study of degenerate elliptic PDEs.
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The first author is supported by NSF Grant DMS-1362425 and research funds from the Dean of the College of Arts and Sciences, the University of Alabama. The second and third authors are supported by the Simons Foundation.
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Cruz-Uribe OFS, D., Isralowitz, J. & Moen, K. Two Weight Bump Conditions for Matrix Weights. Integr. Equ. Oper. Theory 90, 36 (2018). https://doi.org/10.1007/s00020-018-2455-5
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DOI: https://doi.org/10.1007/s00020-018-2455-5
Keywords
- Matrix weights
- \(A_p\) bump conditions
- Maximal operators
- Fractional integral operators
- Singular integral operators
- Sparse operators
- Poincaré inequalities
- p-Laplacian