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4 - A Regularity Theory for the Isaacs Equation

Published online by Cambridge University Press:  16 June 2022

Edgard A. Pimentel
Affiliation:
Universidade de Coimbra, Portugal
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Summary

We examine the Isaacs equations through approximation methods. Because this equation lacks convexity and differentiability, important developments in regularity theory are not available. We approximate an Isaacs operator by a Bellman one, with fixed coefficients, and transmit regularity from the latter to the former. It allows us to develop a regularity for the solutions to the Isaacs equation in Sobolev and Hölder spaces (including classical solutions).

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Publisher: Cambridge University Press
Print publication year: 2022

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