Let P be a hypoelliptic polynomial. We consider classes of ultradifferentiable functions with respect to the iterates of the partial differential operator P(D) and prove that such classes satisfy a Paley-Wiener type theorem. These classes and the corresponding test spaces are nuclear.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-sm208-1-3, author = {Jordi Juan-Huguet}, title = {A Paley-Wiener type theorem for generalized non-quasianalytic classes}, journal = {Studia Mathematica}, volume = {209}, year = {2012}, pages = {31-46}, zbl = {1246.46039}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm208-1-3} }
Jordi Juan-Huguet. A Paley-Wiener type theorem for generalized non-quasianalytic classes. Studia Mathematica, Tome 209 (2012) pp. 31-46. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm208-1-3/