© 1996 by London Mathematical Society
© The London Mathematical Society
On an Oscillation Criterion for a Second Order Linear Quasi-Differential Equation
Department of Mathematics, University of Durban-Westville Private Bag X54001, Durban 4000, South Africa
Received 7 February 1994. Revision received 29 September 1994.
In this paper we give an oscillation criterion for the quasi-differential equation (py')' + qy = 0. The results include a generalisation of an oscillation theorem of Hartman. We also give a necessary and sufficient condition for oscillation.