Electronic Journal of Differential Equations,
Vol. 2010(2010), No. 100, pp. 1-9.

Title: Periodic solutions for a second-order neutral differential
       equation with variable parameter and multiple deviating arguments
       
Authors: Bo Du (Huaiyin Normal Univ., Jiangsu, China)
         Xiaojing Wang (Huaiyin Normal Univ., Jiangsu, China)

Abstract: 
 By employing the continuation theorem of coincidence
 degree theory developed by Mawhin, we obtain periodic solution
 for a class of neutral differential equation with variable
 parameter and multiple deviating arguments.

Submitted April 12, 2010. Published July 21, 2010.
Math Subject Classifications: 34B15, 34B13.
Key Words: Mawhin's continuation theorem; periodic solution; 
           neutral; variable parameter.