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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)


An oscillation theorem for second order sublinear differential equations

Author: James S. W. Wong
Journal: Proc. Amer. Math. Soc. 110 (1990), 633-637
MSC: Primary 34C10
MathSciNet review: 1000170
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Abstract: An oscillation criterion is given for the second order sublinear differential equation $ x'' + a(t){\left\vert x \right\vert^\gamma }\operatorname{sgn} x = 0,0 < \gamma < 1$, where the coefficient $ a(t)$ is not assumed to be nonnegative for all large values of $ t$. The result extends a condition recently discovered by Butler, Erbe, and Mingarelli for the linear equation.

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PII: S 0002-9939(1990)1000170-4
Keywords: Second order, sublinear, ordinary differential equations, oscillation, weighted averages
Article copyright: © Copyright 1990 American Mathematical Society

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