Parametrices and hypoellipticity for pseudodifferential operators on spaces of tempered ultraditributions
arXiv:1405.1942
Abstract
We construct parametrices for a class of pseudodifferential operators of infinite order acting on spaces of tempered ultradistributions of Beurling and Roumieu type. As a consequence we obtain a result of hypoellipticity in these spaces.
16 pages