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A limit-point criterion for 2n-th order symmetric differential expressions
Published online by Cambridge University Press: 14 November 2011
Synopsis
A perturbation theorem for symmetric differential expressions is given and applied to even-order expressions. We assume the coefficients p0(t), pn(t) to be eventually positive and to have real powers of t as dominating terms. Then we are able to admit for the absolute values of the other coefficients a rate of growth depending on the growth of both of the coefficients p0, pn in order to obtain minimal deficiency indices.
- Type
- Research Article
- Information
- Proceedings of the Royal Society of Edinburgh Section A: Mathematics , Volume 90 , Issue 1-2 , 1981 , pp. 1 - 12
- Copyright
- Copyright © Royal Society of Edinburgh 1981
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