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arXiv · 1506.05854

Pseudo-differential operators, Wigner transform and Weyl systems on type I locally compact groups

Marius Mantoiu·Michael Ruzhansky
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Abstract

Let $G$ be a unimodular type I second countable locally compact group and $\hat G$ its unitary dual. We introduce and study a global pseudo-differential calculus for operator-valued symbols defined on $G\times\hat G$, and its relations to suitably defined Wigner transforms and Weyl systems. We also unveil its connections with crossed products $C^*$-algebras associated to certain $C^*$-dynamical systems, and apply it to the spectral analysis of covariant families of operators. Applications are given to nilpotent Lie groups, in which case we relate quantizations with operator-valued and scalar-valued symbols.

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Marius Mantoiu, Michael Ruzhansky. 2015-06-18. Pseudo-differential operators, Wigner transform and Weyl systems on type I locally compact groups. https://arxiv.org/abs/1506.05854

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