Analysis & PDE
- Anal. PDE
- Volume 9, Number 3 (2016), 727-772.
Regularity for parabolic integro-differential equations with very irregular kernels
We prove Hölder regularity for a general class of parabolic integro-differential equations, which (strictly) includes many previous results. We present a proof that avoids the use of a convex envelope as well as give a new covering argument that is better suited to the fractional order setting. Our main result involves a class of kernels that may contain a singular measure, may vanish at some points, and are not required to be symmetric. This new generality of integro-differential operators opens the door to further applications of the theory, including some regularization estimates for the Boltzmann equation.
Anal. PDE, Volume 9, Number 3 (2016), 727-772.
Received: 3 October 2015
Accepted: 16 December 2015
First available in Project Euclid: 16 November 2017
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Schwab, Russell W.; Silvestre, Luis. Regularity for parabolic integro-differential equations with very irregular kernels. Anal. PDE 9 (2016), no. 3, 727--772. doi:10.2140/apde.2016.9.727. https://projecteuclid.org/euclid.apde/1510843267