Principal Solutions Revisited

Abstract

The main objective of this paper is to identify principal solutions associated with Sturm-Liouville operators on arbitrary open intervals (a, b) ⊆ R, as introduced by Leighton and Morse in the scalar context in 1936 and by Hartman in the matrix-valued situation in 1957, with Weyl-Titchmarsh solutions, as long as the underlying Sturm-Liouville differential expression is nonoscillatory (resp., disconjugate or bounded from below near an endpoint) and in the limit point case at the endpoint in question. In addition, we derive an explicit formula for Weyl-Titchmarsh functions in this case (the latter appears to be new in the matrix-valued context).

Department(s)

Mathematics and Statistics

Keywords and Phrases

Matrix-valued Schrödinger operators; Oscillation theory; Principal solutions; Weyl-Titchmarsh solutions

International Standard Serial Number (ISSN)

2297-024X; 2297-0215

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Springer, All rights reserved.

Publication Date

01 Jan 2016

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