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arXiv · 1305.0731

Semiclassical hypoelliptic estimates with a big loss of derivatives

Alberto Parmeggiani·Karel Pravda-Starov
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Abstract

We study the pseudospectral properties of general pseudodifferential operators around a doubly characteristic point and provide necessary and sufficient conditions for semiclassical hypoelliptic a priori estimates with a big loss of derivatives to hold.

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Alberto Parmeggiani, Karel Pravda-Starov. 2013-05-03. Semiclassical hypoelliptic estimates with a big loss of derivatives. https://arxiv.org/abs/1305.0731

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