activity
20162026
most citedHarnack inequality for a class of Kolmogorov-Fokker-Planck equations in non-divergence form

19 citations · 20 across the 9 of their papers we have counts for

collaborators

11 papers

math.AP2026

Variational properties of Perron's extremal solutions in the Bernoulli one-phase problem

Farhan Abedin, William M. Feldman, Kerrek Stinson

We study the Perron extremal solutions of the stationary one-phase Bernoulli problem. These solutions are important in several applications, but not much is known about the regular…

math.AP2025

Boundary regularity for subelliptic equations in the Heisenberg group

Farhan Abedin, Giulio Tralli

We prove boundary Hölder and Lipschitz regularity for a class of degenerate elliptic, second order, inhomogeneous equations in non-divergence form structured on the left-invariant…

math.AP2025

Regularity of two-phase free boundary minimizers in periodic media

Farhan Abedin, William M Feldman

We study the regularity of minimizers of a two-phase energy functional in periodic media. Our main result is a large scale Lipschitz estimate. We also establish improvement-of-flat…

math.AP2022

Quantitative convergence of the "bulk'' free boundary in an oscillatory obstacle problem

Farhan Abedin, William M Feldman

We consider an oscillatory obstacle problem where the coincidence set and free boundary are also highly oscillatory. We establish a rate of convergence for a regularized notion of…

math.AP2021

A perturbative approach to the parabolic optimal transport problem for non-MTW costs

Farhan Abedin, Jun Kitagawa

Fix a pair of smooth source and target densities and of equal mass, supported on bounded domains . Also fix a cost function $c_0 \in C^{4,α}(…

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…