Electronic Journal of Differential Equations,
Vol. 2006(2006), No. 110, pp. 1-25.

Title: On periodic linear neutral delay 
       differential and difference equations

Authors: Christos G. Philos  (Univ. of Ioannina, Greece)
         Ioannis K. Purnaras (Univ. of Ioannina, Greece)
	 
Abstract: 
 This article  concerns  the behavior of the solutions to periodic
 linear neutral delay differential equations as well as to periodic linear
 neutral delay difference equations. Some new results are obtained via two
 appropriate distinct roots of the corresponding (so called) characteristic
 equation.

Submitted April 13, 2006. Published September 11, 2006.
Math Subject Classifications: 34K25, 34K40, 39A11.
Key Words: Neutral delay differential equation;
           neutral delay difference equation; periodic coefficients;
           characteristic equation; behavior of solutions.