Abstract
We study a porous medium equation with nonlocal diffusion effects given by an inverse fractional Laplacian operator:
We pose the problem for \({x\in {\mathbb{R}^n}}\) and t > 0 with bounded and compactly supported initial data, and prove the existence of weak and bounded solutions that propagate with finite speed, a property that is not shared by other fractional diffusion models.
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Communicated by F. Lin
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Caffarelli, L., Vazquez, J.L. Nonlinear Porous Medium Flow with Fractional Potential Pressure. Arch Rational Mech Anal 202, 537–565 (2011). https://doi.org/10.1007/s00205-011-0420-4
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Keywords
- Porous Medium
- Weak Solution
- Contact Point
- Obstacle Problem
- Energy Inequality