Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-28T15:22:43.658Z Has data issue: false hasContentIssue false

Spectral properties of first order ordinary differential operators with short range potentials

Published online by Cambridge University Press:  22 January 2016

S. Itatsu
Affiliation:
Department of Mathematics, Faculty of Science University of Shizuoka Department of Mathematics, Faculty of Science University of Nagoya
H. Kaneta
Affiliation:
Department of Mathematics, Faculty of Science University of Shizuoka Department of Mathematics, Faculty of Science University of Nagoya
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The purpose of the present paper is to give a complete proof of the theorem which will be used in a paper of the second author [4].

We will discuss certain spectral properties of selfadjoint ordinary differential operators of the form iA(d/dx) + V acting in L2(R)n = Σ ⊕ L2(R)n, where A is a real diagonal constant matrix and V an Hermitian matrix valued function on R which satisfies some conditions to be stated in the sequel.

Type
Research Article
Copyright
Copyright © Editorial Board of Nagoya Mathematical Journal 1980

References

[ 1 ] Agmon, S., Spectral properties of Schrodinger operators and scattering theory, Annali della Scuol Normal Superiore di Pisa, series 4, vol. 2 (1975), 51218.Google Scholar
[ 2 ] Angelopoulos, E., Reduction on the Lorentz subgroup of UIR’s of the Poincaré group induced by a semisimple little group, Math. Phys. vol. 15 (1974), 155165.Google Scholar
[ 3 ] Coddington, E. A., Levinson, N., Theory of ordinary differential equations, McGraw-Hill, 1955.Google Scholar
[ 4 ] Kaneta, H., Irreducibility of some unitary representations of the Poincaré group with respect to the Poincaré subsemigroup, I, Nagoya Math. J. vol. 78 (1980), 113136.CrossRefGoogle Scholar
[ 5 ] Kato, T., Perturbation theory for linear operators, Springer, 1966.Google Scholar
[ 6 ] Martynov, V. V., Conditions for discreteness and continuity of the spectrum of a selfadjoint operator of first order differential equations, Dokl. Acad. Nauk, SSSR, 165 (1965), 986991.Google Scholar
[ 7 ] Mochizuki, K., Spectral and scattering theory for symmetric hyperbolic system in an exterior domain, Pub. RIMS, Kyoto Univ., 5 (1969), 219258.Google Scholar
[ 8 ] Yajima, K., The limiting absorption principle for uniformly propagative systems, J. Fac. Sci. Univ. Tokyo Sec. 1A, 21 (1974), 119131. Eigenfunction expansions associated with uniformly propagative systems and their applications to scattering theory, J. Fac. Sci. Univ. Tokyo, Sec. 1A, 22 (1975), 121151.Google Scholar