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arXiv · 1307.3661

Actions with globally hypoelliptic leafwise Laplacian and rigidity

Danijela Damjanovic
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Abstract

We prove several results concerning smooth $\mathbb R^k$ actions with the property that their leafwise Laplacian is globally hypoelliptic. Such actions are necessarily uniquely ergodic and minimal, and cohomology is often finite-dimensional, even trivial. Further we consider a class of examples of $\mathbb R^2$ actions on 2-step nilmanifolds, which have globally hypoelliptic leafwise Laplacian, and we show transversal local rigidity under certain Diophantine conditions.

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Danijela Damjanovic. 2013-07-20. Actions with globally hypoelliptic leafwise Laplacian and rigidity. https://arxiv.org/abs/1307.3661

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