@article{Ke_Obukhovskiĭ_2013, title={Controllability for systems governed by second-order differential inclusions with nonlocal conditions}, volume={42}, url={https://apcz.umk.pl/TMNA/article/view/TMNA.2013.041}, abstractNote={We study a controllability problem for a system governed by a semilinear second-order differential inclusion involving control perturbations and nonlocal conditions in a Hilbert space. By using the fixed point theory for condensing multimaps, the $(E_0,X_0)$-controllability result for the mentioned problem is proved under the assumption that the corresponding linear system is $(E_0,X_0)$-controllable.}, number={2}, journal={Topological Methods in Nonlinear Analysis}, author={Ke, Tran Dinh and Obukhovskiĭ, Valeri}, year={2013}, month={Apr.}, pages={377–403} }