Harnack Inequality for Nonlinear Equations Driven by the Normalized Infinity-Laplacian

Ahmed Mohammed, Carson Pocock

We establish interior Harnack inequalities for nonnegative viscosity solutions of \[ Δ_\infty^N u=f(u)+g(u)|Du|^q,\qquad 0<q<2, \] under natural monotonicity, sign, and Keller--Oss…