Regularity for parabolic integro-differential equations with very irregular kernels

RW Schwab, L Silvestre - Analysis & PDE, 2016 - msp.org
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 …

On existence and uniqueness of viscosity solutions for second order fully nonlinear PDEs with Caputo time fractional derivatives

T Namba - Nonlinear Differential Equations and Applications …, 2018 - Springer
Initial-boundary value problems for second order fully nonlinear PDEs with Caputo time
fractional derivatives of order less than one are considered in the framework of viscosity …

Perron's method for nonlocal fully nonlinear equations

C Mou - Analysis & PDE, 2017 - msp.org
This paper is concerned with the existence of viscosity solutions of nonlocal fully nonlinear
equations that are not translation-invariant. We construct a discontinuous viscosity solution …

Further time regularity for nonlocal, fully nonlinear parabolic equations

HA Chang‐Lara, D Kriventsov - Communications on Pure and …, 2017 - Wiley Online Library
We establish Hölder estimates for the time derivative of solutions of nonlocal parabolic
equations under mild assumptions for the boundary data. As a consequence we are able to …

Existence of solutions to integro-PDEs

C Mou - Calculus of Variations and Partial Differential …, 2019 - Springer
This paper is concerned with existence of a C^ α C α viscosity solution of a second order
non-translation invariant integro-PDE. We first obtain a weak Harnack inequality for such …

Existence-Uniqueness for Nonlinear Integro-differential Equations with Drift in

A Biswas, S Khan - SIAM Journal on Mathematical Analysis, 2023 - SIAM
In this article we consider a class of nonlinear integro-differential equations of the form in,
where,. The above equation appears in the study of ergodic control problems in when the …

Coupling Lévy measures and comparison principles for viscosity solutions

N Guillen, C Mou, A Świȩch - Transactions of the American Mathematical …, 2019 - ams.org
We prove new comparison principles for viscosity solutions of nonlinear integro-differential
equations. The operators to which the method applies include but are not limited to those of …

Comparison principle for general nonlocal Hamilton-Jacobi equations with superlinear gradient

A Ciomaga, TM Le, O Ley, E Topp - arXiv preprint arXiv:2409.11124, 2024 - arxiv.org
We obtain the comparison principle for discontinuous viscosity sub-and supersolutions of
nonlocal Hamilton-Jacobi equations, with superlinear and coercive gradient terms. The …

Minimizing ruin probability under the Sparre Anderson model

L Tian, L Bai - Communications in Statistics-Theory and Methods, 2022 - Taylor & Francis
In this paper, we consider the problem of minimizing the ruin probability of an insurance
company in which the surplus process follows the Sparre Andersen model. We recast this …

Periodic homogenization for weakly elliptic Hamilton-Jacobi-Bellman equations with critical fractional diffusion

A Ciomaga, D Ghilli, E Topp - Communications in Partial …, 2022 - Taylor & Francis
In this paper we establish periodic homogenization for Hamilton-Jacobi-Bellman (HJB)
equations, associated to nonlocal operators of integro-differential type. We consider the …