Year: 2026
Type: preprint
Abstract: We prove a Harnack inequality on Monge--Ampère gradient graphs under suitable geometric bounds, giving us interior $L^\infty$ estimates for the linearized Monge--Ampère equation. The proof combines Moser iteration on extrensic balls with a gradient estimate for the extrinsic distance function. The argument avoids the Caffarelli--Gutiérrez Harnack inequality and the engulfing and covering properties of Monge--Ampère sections.
Source: arXiv (Cornell University)
Authors: Rakshit, Arghya, Wu, Derek
Language: English
Subfield: Applied Mathematics
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7222961608
