Abstract
We study existence and Lorentz regularity of distributional solutions to elliptic equations with measurable coefficients and either a convection or a drift first order term. The presence of such a term makes the problem not coercive. The main tools are pointwise estimates of the rearrangements of both the solution and its gradient.
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The author is grateful to the anonymous referee for the careful reading of the manuscript and for all the comments and corrections. The author has been partially supported by: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (PNPD/CAPES-UnB-Brazil), Grants 88887.363582/2019-00.
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Buccheri, S. Gradient estimates for nonlinear elliptic equations with first order terms. manuscripta math. 165, 191–225 (2021). https://doi.org/10.1007/s00229-020-01210-5
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DOI: https://doi.org/10.1007/s00229-020-01210-5