Three-Commutators Revisited

Abstract

We present a class of pseudo-differential elliptic systems with anti-self-dual potentials on (Formula presented.) satisfying compensation phenomena similar to the ones discovered by the second author for elliptic systems with anti-symmetric potentials. These compensation phenomena are based on new “multi-commutator” structures generalizing the 3-commutators recently introduced by the authors.© 2020 Taylor & Francis Group, LLC.