Electronic Journal of Differential Equations,
Vol. 2007(2007), No. 40, pp. 1-40.

Title: Asymptotic solutions of forced nonlinear second order
       differential equations and their extensions

Authors: Angelo B. Mingarelli (Carleton Univ., Ottawa, Canada)
         Kishin Sadarangani (Univ. de Las Palmas de Gran Canaria, Spain)
 
Abstract:
 Using a modified version of Schauder's fixed point theorem,
 measures of non-compactness and classical techniques,
 we provide new general results on the asymptotic behavior
 and the non-oscillation of second order scalar nonlinear
 differential equations on a half-axis. In addition, we extend
 the methods and present new similar results for integral
 equations and Volterra-Stieltjes integral equations,
 a framework whose benefits include the unification of
 second order difference and differential equations.
 In so doing, we enlarge the class of nonlinearities and in
 some cases remove the distinction between superlinear,
 sublinear, and linear differential equations that is
 normally found in the literature. An update of papers,
 past and present, in the theory of Volterra-Stieltjes
 integral equations is also presented.
  
Submitted February 15, 2007. Published March 9, 2007.
Math Subject Classifications: 39A11, 34E10, 34A30, 34C10, 45D05, 45G10, 45M05.
Key Words: Second order differential equations; nonlinear; non-oscillation; 
    integral inequalities; Atkinson's theorem; asymptotically linear;
    asymptotically constant; oscillation; differential inequalities;
    fixed point theorem; Volterra-Stieltjes; integral equations.