Abstract
We provide Sobolev estimates for solutions of first order Hamilton–Jacobi equations with Hamiltonians which are superlinear in the gradient variable. We also show that the solutions are differentiable almost everywhere. The proof relies on an inverse Hölder inequality. Applications to mean field games are discussed.
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Acknowledgments
The authors wish to thank the anonymous referee for the careful reading of the paper and the suggestions. Supported by the Italian Indam Gnampa project 2013 “Modelli di campo medio nelle dinamiche di popolazioni e giochi differenziali”. The first author wishes to thank the Indam and the University Rome Tor Vergata where the project was partially completed.
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Communicated by L. Ambrosio.
Cardaliaguet was partially supported by the ANR (Agence Nationale de la Recherche) projects ANR-10-BLAN 0112, ANR-12-BS01-0008-01 and ANR-14-ACHN-0030-01.
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Cardaliaguet, P., Porretta, A. & Tonon, D. Sobolev regularity for the first order Hamilton–Jacobi equation. Calc. Var. 54, 3037–3065 (2015). https://doi.org/10.1007/s00526-015-0893-3
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DOI: https://doi.org/10.1007/s00526-015-0893-3