A lower bound on the spectrum of the Sublaplacian

DOI10.1007/s12220-014-9481-6zbMath1322.53076OpenAlexW2052122173MaRDI QIDQ490758

Amine Aribi, Ahmad El Soufi, Sorin Dragomir

Publication date: 28 August 2015

Published in: The Journal of Geometric Analysis (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/s12220-014-9481-6

zbMATH Keywords

Tanaka-Webster connectionFefferman metricpseudo-Hermitian Ricci curvatureSublaplacian

Mathematics Subject Classification ID

Global differential geometry of Hermitian and Kählerian manifolds (53C55) Spectral problems; spectral geometry; scattering theory on manifolds (58J50) Methods of global Riemannian geometry, including PDE methods; curvature restrictions (53C21) CR structures, CR operators, and generalizations (32V05)

Related Items (4)

Gravitational field equations on Fefferman space-times ⋮ The sharp upper bounds for the first positive eigenvalue of the Kohn-Laplacian on compact strictly pseudoconvex hypersurfaces ⋮ The first positive eigenvalue of the sub-Laplacian on CR spheres ⋮ The Lichnerowicz-Obata theorem on sub-Riemannian manifolds with transverse symmetries

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