activity
20112026
most citedRegularity for parabolic integro-differential equations with very irregular kernels

73 citations · 125 across the 11 of their papers we have counts for

collaborators

15 papers

math.AP2026

Partial Hölder regularity for fully nonlinear nonlocal parabolic equations with integrable kernels

Minhyun Kim, Luke Schleef, Russell W. Schwab

In this work, we consider solutions to (fully nonlinear) parabolic integro-differential equations with integrable interaction kernels. A typical equation would be that obtained by…

math.AP2025

Hamilton-Jacobi-Bellman equations on graphs

Nicolò Forcillo, Jun Kitagawa, Russell W. Schwab

Here, we study Hamilton-Jacobi-Bellman equations on graphs. These are meant to be the analog of any of the following types of equations in the continuum setting of partial differen…

math.AP2024

Well-posedness for viscosity solutions of the one-phase Muskat problem in all dimensions

Russell Schwab, Son Tu, Olga Turanova

In this article, we apply the viscosity solutions theory for integro-differential equations to the \emph{one-phase} Muskat equation (also known as the Hele-Shaw problem with gravit…

math.AP2020

Regularity for a special case of two-phase Hele-Shaw flow via parabolic integro-differential equations

Farhan Abedin, Russell W. Schwab

We establish that the regularity theory for translation invariant fractional order parabolic integro-differential equations (via Krylov-Safonov estimates) gives an improv…

math.AP2018★ 6 cited

Min-max formulas for nonlocal elliptic operators on Euclidean space

Nestor Guillen, Russell Schwab

An operator satisfies the Global Comparison Property if anytime a function touches another from above at some point, then the operator preserves the ordering at the point of contac…

math.AP2018

Some free boundary problems recast as nonlocal parabolic equations

Hector A. Chang-Lara, Nestor Guillen, Russell W. Schwab

In this work we demonstrate that a class of some one and two phase free boundary problems can be recast as nonlocal parabolic equations on a submanifold. The canonical examples wou…

math.AP2017

Estimates for Dirichlet-to-Neumann maps as integro-differential operators

Nestor Guillen, Jun Kitagawa, Russell W. Schwab

Some linear integro-differential operators have old and classical representations as the Dirichlet-to-Neumann operators for linear elliptic equations, such as the 1/2-Laplacian or…

math.AP2016

Min-max formulas for nonlocal elliptic operators

Nestor Guillen, Russell W. Schwab

In this work, we give a characterization of Lipschitz operators on spaces of functions (also , , , ) that obey the global comparison property--…

math.AP2015★ 2 cited

Neumann Homogenization via Integro-Differential Operators, Part 2: singular gradient dependence

Nestor Guillen, Russell W. Schwab

We continue the program initiated in a previous work, of applying integro-differential methods to Neumann Homogenization problems. We target the case of linear periodic equations w…

math.AP2014★ 73 cited

Regularity for parabolic integro-differential equations with very irregular kernels

Russell W. Schwab, Luis Silvestre

We prove Hölder regularity for a general class of parabolic integro-differential equations, which (strictly) includes many previous results. We present a proof which avoids the use…

math.AP2014

Neumann Homogenization via Integro-Differential Operators

Nestor Guillen, Russell W. Schwab

In this note we describe how the Neumann homogenization of fully nonlinear elliptic equations can be recast as the study of nonlocal (integro-differential) equations involving elli…

math.AP2013★ 10 cited

Hölder Regularity For Integro-Differential Equations With Nonlinear Directional Dependence

Marcus Rang, Moritz Kassmann, Russell W. Schwab

We prove Hölder regularity results for a class of nonlinear elliptic integro-differential operators with integration kernels whose ellipticity bounds are strongly directionally dep…

math.AP2013★ 27 cited

Regularity results for nonlocal parabolic equations

Moritz Kassmann, Russell W. Schwab

We survey recent regularity results for parabolic equations involving nonlocal operators like the fractional Laplacian. We extend the results of Felsinger-Kassmann (2013) and obtai…

math.AP2011★ 4 cited

Stochastic Homogenization for Some Nonlinear Integro-Differential Equations

Russell W. Schwab

In this note we extend to the random, stationary ergodic setting previous results of periodic homogenization for a particular family of nonlinear nonlocal "elliptic" equations with…

math.AP2011★ 3 cited

Aleksandrov-Bakelman-Pucci Type Estimates For Integro-Differential Equations

Nestor Guillen, Russell Schwab

In this work we provide an Aleksandrov-Bakelman-Pucci type estimate for a certain class of fully nonlinear elliptic integro-differential equations, the proof of which relies on an…