Electronic Journal of Differential Equations,
Vol. 2005(2005), No. 134, pp. 1-18.

Title: Oscillation criteria for first-order nonlinear
       neutral delay differential equations
       
Authors: Elmetwally M. Elabbasy (Mansoura Univ., Egypt)
         Taher S. Hassan (Mansoura Univ., Egypt)
	 Samir H. Saker (Mansoura Univ., Egypt)

Abstract: 
 Oscillation criteria are obtained for all solutions
 of first-order nonlinear neutral delay differential equations.
 Our results extend and improve some results well known 
 in the literature. Some examples are considered to
 illustrate our main results.
 
Submitted August 2, 2005. Published November 30, 2005.
Math Subject Classifications: 34K15, 34C10.
Key Words: Oscillation; non-oscillation; neutral delay of
           differential equations.