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Oscillation of second-order hyperbolic equations with non-integrable coefficients

Published online by Cambridge University Press:  14 November 2011

Wu-Teh Hsiang
Affiliation:
Department of Mathematical Sciences, Northern Illinois University, Dekalb, Illinois 60115, U.S.A.
Man Kam Kwong
Affiliation:
Department of Mathematical Sciences, Northern Illinois University, Dekalb, Illinois 60115, U.S.A.

Synopsis

Some sufficient conditions are obtained on the coefficient g and the initial values Φ and ψfor the solution ot the non-linear hyperbolic equation

to change sign in the first quadrant. An example is given to show that is not sufficient in the linear case.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1982

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