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arXiv · 2103.00892

Heat kernel asymptotics for quaternionic contact manifolds

Abdellah Laaroussi
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Abstract

In this paper, we study the heat kernel associated to the intrinsic sublaplacian on a quaternionic contact manifold considered as a subriemannian manifold. More precisely, we explicitly compute the first two coefficients $c_0$ and $c_1$ appearing in the small time asymptotics expansion of the heat kernel on the diagonal. We show that the second coefficient $c_1$ depends linearly on the qc scalar curvature $\kappa$. Finally we apply our results to compact qc-Einstein manifolds and prove the spectral invariance of geometric quantities in the subriemannian setting.

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Abdellah Laaroussi. 2021-03-01. Heat kernel asymptotics for quaternionic contact manifolds. https://arxiv.org/abs/2103.00892

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