Ahmed Abdullah, Z., Haitham Qasem, I., Ali Mohamad, H. (2011). Oscillations of First Order Linear Delay Differential Equations with positive and negative coefficients. , 8(3), 806-809.
Zainab Ahmed Abdullah; Intisar Haitham Qasem; Hussain Ali Mohamad. "Oscillations of First Order Linear Delay Differential Equations with positive and negative coefficients". , 8, 3, 2011, 806-809.
Ahmed Abdullah, Z., Haitham Qasem, I., Ali Mohamad, H. (2011). 'Oscillations of First Order Linear Delay Differential Equations with positive and negative coefficients', , 8(3), pp. 806-809.
Ahmed Abdullah, Z., Haitham Qasem, I., Ali Mohamad, H. Oscillations of First Order Linear Delay Differential Equations with positive and negative coefficients. , 2011; 8(3): 806-809.

Oscillations of First Order Linear Delay Differential Equations with positive and negative coefficients

Baghdad Science Journal
Article 1, Volume 8, Issue 3, 2011, Pages 806-809
Authors
Zainab Ahmed Abdullah; Intisar Haitham Qasem; Hussain Ali Mohamad
Abstract
Oscillation criteria are obtained for all solutions of the first-order linear delay differential equations with positive and negative coefficients where we established some sufficient conditions so that every solution of (1.1) oscillate. This paper generalized the results in [11]. Some examples are considered to illustrate our main results.
Keywords
Delay differential equations; oscillations
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