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Journal articles
A lower bound on the spectrum of the sublaplacian
Abstract : We establish a new lower bound on the first nonzero eigenvalue $\lambda_1 (\theta )$ of the sublaplacian $\Delta_b$ on a compact strictly pseudoconvex CR manifold $M$ carrying a contact form $\theta$ whose Tanaka-Webster connection has pseudohermitian Ricci curvature bounded from below.
Cited literature [37 references]
https://hal.archives-ouvertes.fr/hal-00927302
Contributor : Ahmad El Soufi <>
Submitted on : Tuesday, January 14, 2014 - 9:19:06 AM
Last modification on : Friday, February 19, 2021 - 4:10:02 PM
Long-term archiving on: : Tuesday, April 15, 2014 - 4:19:21 PM
Contributor : Ahmad El Soufi <>
Submitted on : Tuesday, January 14, 2014 - 9:19:06 AM
Last modification on : Friday, February 19, 2021 - 4:10:02 PM
Long-term archiving on: : Tuesday, April 15, 2014 - 4:19:21 PM
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