Article PDF
Avoid common mistakes on your manuscript.
References
S. Dragomir, On pseudohermitian immersions between strictly pseudoconvex CR manifolds.American J. Math. (bd1)117 (1995), 169–202.
A. Greenleaf, The first eigenvalue of a sublaplacian on a pseudohermitian manifold.Comm. Partial Diff. Equat. (2) 10 (1985), 191–217.
L. Hörmander, Subelliptic operators.Ann. of Math. Studies 91 (1979), 127–208.
Z. Jiaqing andY. Hongcang, On the estimate of the first eigenvalue of a compact Riemannian maifold.Scientia Sinica (12)XXVII (1984), 1265–1273.
S. Kobayashi andK. Nomizu,Foundations of differential geometry. Interscience Publ., New York, Vol. I, (1963), Vol II, (1969).
J. J. Kohn, Harmonic integrals on strongly pseudoconvex manifolds.Ann. of Math. 78 (1963), 112–148, ibid., 79 (1965), 450-472.
J. M. Lee, Pseudo-Einstein structures on CR manifolds.American J. Math. 110 (1988), 157–178.
A. Menikoff andJ. Sjöstrand, On the eigenvalues of a class of hypoelliptic operators.Math. Ann. 235 (1978), 55–85.
N. Tanaka,A differential geometric study on strongly pseudo-convex CR manifolds. Kinokunya Co., Ltd., Tokyo, (1975).
S. Webster, Pseudohermitian structures on a real hypersurface.J. Diff. Geometry 13 (1978), 25–11.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Barletta, E., Dragomir, S. On the spectrum of a strictly pseudoconvex cr Manifold. Abh.Math.Semin.Univ.Hambg. 67, 33–46 (1997). https://doi.org/10.1007/BF02940818
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02940818