Calculus of Variations and Geometric Measure Theory
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Q. H. Nguyen - C. P. Nguyen

Good-$\lambda$ and Muckenhoupt-Wheeden type bounds in quasilinear measure datum problems, with applications

created by nguyen on 13 Jul 2018
modified on 03 Aug 2018

[BibTeX]

Accepted Paper

Inserted: 13 jul 2018
Last Updated: 3 aug 2018

Journal: Math. Ann.
Year: 2018

Abstract:

Weighted good-$\lambda$ type inequalities and Muckenhoupt-Wheeden type bounds are obtained for gradients of solutions to a class of quasilinear elliptic equations with measure data. Such results are obtained globally over sufficiently flat domains in $\mathbb{R}^n$ in the sense of Reifenberg. The principal operator here is modeled after the $p$-Laplacian, where for the first time singular case $\frac{3n-2}{2n-1}<p\leq 2-\frac{1}{n}$ is considered. Those bounds lead to useful compactness criteria for solution sets of quasilinear elliptic equations with measure data. As an application, sharp existence results and sharp bounds on the size of removable singular sets are deduced for a quasilinear Riccati type equation having a gradient source term with linear or super-linear power growth.


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