1. Department of Mathematics, University of Torino, Via Carlo Alberto 10, 10123Torino, Italy.marco.cappiello@unito.it;3. Institut für Analysis, Leibniz Universit?t Hannover, Welfenplatz 1, D–30167Hannover, Germany.
Abstract:
We introduce a global wave front set suitable for the analysis of tempered ultradistributions of quasi-analytic Gelfand–Shilov type. We study the transformation properties of the wave front set and use them to give microlocal existence results for pullbacks and products. We further study quasi-analytic microlocality for classes of localization and ultradifferential operators, and prove microellipticity for differential operators with polynomial coefficients.