Abstract
In this paper, by using a discrete game interpretation of fully nonlinear parabolic equations proposed by Kohn and Serfaty (Commun Pure Appl Math 63(10):1298–1350, 2010), we show that the spatial semiconvexity of viscosity solutions is preserved for a class of fully nonlinear evolution equations with concave parabolic operators. We also reduce the game-theoretic argument to the viscous and inviscid Hamilton-Jacobi equations, categorizing the semiconvexity regularity of solutions in terms of semiconcavity of the Hamiltonian.
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Acknowledgements
The author would like to thank the anonymous referees for careful reading and helpful comments. Several results related to this work were presented at the 6th Italian-Japanese Workshop on Geometric Properties for Parabolic and Elliptic PDEs held in Cortona, May 20–24, 2019. The author is grateful to the organizers for their invitation and hospitality.
The work of the author is supported by Japan Society for the Promotion of Science (JSPS) through the grants No. 16K17635 and No. 19K03574 and by Central Research Institute of Fukuoka University through the grant No. 177102.
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Liu, Q. (2021). Semiconvexity of Viscosity Solutions to Fully Nonlinear Evolution Equations via Discrete Games. In: Ferone, V., Kawakami, T., Salani, P., Takahashi, F. (eds) Geometric Properties for Parabolic and Elliptic PDE's. Springer INdAM Series, vol 47. Springer, Cham. https://doi.org/10.1007/978-3-030-73363-6_10
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