The form sum and the Friedrichs extension of Schrödinger-type operators on Riemannian manifolds

Author:
Ognjen Milatovic

Journal:
Proc. Amer. Math. Soc. **132** (2004), 147-156

MSC (2000):
Primary 35P05, 58G25; Secondary 47B25, 81Q10

Published electronically:
April 24, 2003

MathSciNet review:
2021257

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Abstract | References | Similar Articles | Additional Information

Abstract: We consider , where is a Riemannian manifold (not necessarily complete), and is the scalar Laplacian on . We assume that , where and ( is a constant) are real-valued, and is semibounded below on . Let be the Friedrichs extension of . We prove that the form sum coincides with the self-adjoint operator associated to the closure of the restriction to of the sum of two closed quadratic forms of and . This is an extension of a result of Cycon. The proof adopts the scheme of Cycon, but requires the use of a more general version of Kato's inequality for operators on Riemannian manifolds.

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Additional Information

**Ognjen Milatovic**

Affiliation:
Department of Mathematics, Northeastern University, Boston, Massachusetts 02115

Address at time of publication:
Department of Mathematics, Fitchburg State College, Fitchburg, Massachusetts 01420

Email:
ogmilato@lynx.neu.edu, omilatovic@fsc.edu

DOI:
https://doi.org/10.1090/S0002-9939-03-07075-8

Received by editor(s):
August 20, 2002

Published electronically:
April 24, 2003

Communicated by:
David S. Tartakoff

Article copyright:
© Copyright 2003
American Mathematical Society