@Article{MallikaArjunan2014, author = "Mallika Arjunan, M. and Nadaf, N. Y.", title = "Existence and controllability results for damped second order impulsive functional differential systems with state-dependent delay", journal = "Opuscula Math.", year = "2014", volume = "34", number = "3", pages = "503--522", doi = "http://dx.doi.org/10.7494/OpMath.2014.34.3.503", url = "http://dx.doi.org/10.7494/OpMath.2014.34.3.503", abstract = "In this paper, we investigate the existence and controllability of mild solutions for a damped second order impulsive functional differential equation with state-dependent delay in Banach spaces. The results are obtained by using Sadovskii's fixed point theorem combined with the theories of a strongly continuous cosine family of bounded linear operators. Finally, an example is provided to illustrate the main results.", keywords = "damped second order differential equations, impulsive differential equations, controllability, state-dependent delay, cosine function, mild solution, fixed point", issn = "1232-9274" }