A Priori Estimates for Maximally Subelliptic Quadratic Forms

Abstract

We prove a priori subelliptic estimates, near a non-characteristic boundary point, for the heat operators associated to a wide class of maximally subelliptic quadratic forms. This is the third paper in a series devoted to studying general maximally subelliptic boundary value problems.

66 pages, v2: typos and other local issues fixed, part 3 in a series. Part 1: arXiv:2507.03501 Part 2: arXiv:2510.12775