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arXiv · 1412.4756

On the differentiability of the solutions of non-local Isaacs equations involving $\frac 12$-Laplacian

Imran H Biswas·Indranil Chowdhury
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Abstract

We derive $C^{1,\sigma}$-estimate for the solutions of a class of non-local elliptic Bellman-Isaacs equations. These equations are fully nonlinear and are associated with infinite horizon stochastic differential game problems involving jump-diffusions. The non-locality is represented by the presence of fractional order diffusion term and we deal with the particular case of $\frac 12$-Laplacian, where the order $\frac 12$ is known as the critical order in this context. More importantly, these equations are not translation invariant and we prove that the viscosity solutions of such equations are $C^{1,\sigma}$, making the equations classically solvable.

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Imran H Biswas, Indranil Chowdhury. 2014-12-15. On the differentiability of the solutions of non-local Isaacs equations involving $\frac 12$-Laplacian. https://arxiv.org/abs/1412.4756

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