Abstract
We prove local higher integrability of spatial gradients for obstacle problems related to porous medium type equations.
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Cho, Y., Scheven, C. The self-improving property of higher integrability in the obstacle problem for the porous medium equation. Nonlinear Differ. Equ. Appl. 26, 37 (2019). https://doi.org/10.1007/s00030-019-0581-7
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DOI: https://doi.org/10.1007/s00030-019-0581-7