Journal
COMMUNICATIONS IN PARTIAL DIFFERENTIAL EQUATIONS
Volume 45, Issue 9, Pages 1213-1251Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/03605302.2020.1768542
Keywords
Kinetic formulation; dissipation measure; fractional conservation law; nonlinearity of porous medium kind; nonlocal and nonlinear diffusion; pure jump Levy operator; well-posedness; L(1)data
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Funding
- RUDN University Program 5-100
- French ANR project CoToCoLa [ANR-11-JS01-006-01]
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We introduce a kinetic formulation for scalar conservation laws with nonlocal and nonlinear diffusion terms. We deal with merelyL(1)initial data, general self-adjoint pure jump Levy operators, and locally Lipschitz nonlinearities of porous medium kind possibly strongly degenerate. The cornerstone of the formulation and the uniqueness proof is an adequate explicit representation of the dissipation measure associated to the diffusion. This measure is afunction in our nonlocal framework. Our approach is inspired from the second order theory unlike the cutting technique previously introduced for bounded entropy solutions. The latter technique no longer seems to fit the kinetic setting. This is moreover the first time that the more standard and sharper tools of the second order theory are faithfully adapted to fractional conservation laws.
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