Advisor(s)

Mikhail Shubin

Contributor(s)

Pierre Albin, Maxim Braverman, Christopher K. King, Petar Y. Topalov

Date of Award

2009

Date Accepted

3-2009

Degree Grantor

Northeastern University

Degree Level

Ph.D.

Degree Name

Doctor of Philosophy

Department or Academic Unit

College of Arts and Sciences. Department of Mathematics.

Keywords

Quadratic form, Asymptotics

Subject Categories

Differential equations--Asymptotic theory, Manifolds (Mathematics)

Disciplines

Mathematics

Abstract

We find the semiclassical asymptotics for every eigenvalue of the Witten Laplacian up to any fixed index (in increasing order) for compact manifolds with boundary in the presence of a general Riemannian metric. To this end, we modify and use the variational method suggested by Kordyukov, Mathai and Shubin (2005), with a more extended use of quadratic forms instead of the operators. We also utilize some important ideas and technical elements from Helffer and Nier (2006), who proved more accurate asymptotic expansions but only for the exponentially small eigenvalues.

Document Type

Dissertation

Rights Holder

Niluefer Koldan



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