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About Certain Fourth-Order Ordinary Differential Operators — Oscillation and Discreteness of their Spectrum

✍ Scribed by Frank Fiedler

Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
613 KB
Volume
142
Category
Article
ISSN
0025-584X

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## Abstract We consider a system of ordinary differential operators of mixed order on an interval (0, __r__~0~), __r__~0~ > 0, where some of the coefficients are singular at 0. A special case has been dealt with by Kako, where the essential spectrum of an operator associated with a linearized magne

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## Abstract A system of ordinary differential operators of mixed order on an interval (0,τ~0~), __r__~o~0 > 0, is considered, where the coefficients may be singular at 0. A special case has been dealt with by Kako where the essential spectrum of an operator associated with a linearized magnetohydro