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Analysis of the horizontal Laplacian for the Hopf fibration

  • Robert O. Bauer
Published/Copyright: November 18, 2005
Forum Mathematicum
From the journal Volume 17 Issue 6

Abstract

We study the horizontal Laplacian ΔH associated to the Hopf fibration S3 → S2 with arbitrary Chern number k. We use representation theory to calculate the spectrum, describe the heat kernel and obtain the complete heat trace asymptotics of ΔH. We express the Green functions for associated Poisson semigroups and obtain bounds for their contraction properties and Sobolev inequalities for ΔH. The bounds and inequalities improve as |k | increases.

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Published Online: 2005-11-18
Published in Print: 2005-11-18

Walter de Gruyter GmbH & Co. KG

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