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arxiv: 1712.04338 · v1 · pith:5VT3SQFQnew · submitted 2017-12-09 · 🧮 math.FA

Liftings for ultra-modulation spaces, and one-parameter groups of Gevrey type pseudo-differential operators

classification 🧮 math.FA
keywords omegaoperatornamegammaoperatorspseudo-differentialdeducegevreyone-parameter
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We deduce one-parameter group properties for pseudo-differential operators $\operatorname{Op} (a)$, where $a$ belongs to the class $\Gamma ^{(\omega _0)}_*$ of certain Gevrey symbols. We use this to show that there are pseudo-differential operators $\operatorname{Op} (a)$ and $\operatorname{Op} (b)$ which are inverses to each others, where $a\in \Gamma ^{(\omega _0)}_*$ and $b\in \Gamma ^{(1/\omega _0)}_*$. We apply these results to deduce lifting property for modulation spaces and construct explicit isomorpisms between them. For each weight functions $\omega ,\omega _0$ moderated by GRS submultiplicative weights, we prove that the Toeplitz operator (or localization operator) $\operatorname{Tp} (\omega _0)$ is an isomorphism from $M^{p,q}_{(\omega )}$ onto $M^{p,q}_{(\omega /\omega _0)}$ for every $p,q \in (0,\infty ]$.

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    Proves that bilinear pseudo-differential operators with Gevrey-Hörmander symbols are invariant and continuous on modulation spaces, implying continuity on anisotropic Gelfand-Shilov spaces for both Beurling and Roumie...