Normal Solvability and Fredholm Properties for Regular Hypoelliptic Operators
摘要
We establish normal solvability and a priori estimates for regular hypoelliptic operators with special variable coefficients, acting in multianisotropic Sobolev spaces in \(\mathbb {R}^n.\) We obtain Fredholm criteria for certain classes of regular hypoelliptic operators in various scales of weighted multianisotropic spaces.