Copyright © 2005 Elsevier Ltd All rights reserved.
Linearized oscillation in a nonautonomous scalar delay differential equation
Received 4 March 2005;
accepted 12 April 2005.
Available online 27 July 2005.
Abstract
A new linearized oscillation criterion is established for a nonautonomous scalar delay differential equation. The assumptions include a weak recurrence property of a partial derivative of the nonlinearity. The importance of the recurrence assumption is shown by an example.
Keywords: Delay differential equation; Oscillation; Linearization; Weakly recurrent function
MSC: 34K11






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