Existence of periodic solutions in shifts δ± for neutral nonlinear dynamic systems. - Murat Adivar; Halis Can Koyuncuoglu; Youssef N. Raffoul (Appl. Math. Comput., 2014)

Floquet theory based on new periodicity concept for hybrid systems involving q-difference equations. - Murat Adivar; Halis Can Koyuncuoglu (Appl. Math. Comput., 2016)

Asymptotic Constancy for the Solutions of Caputo Fractional Differential Equations with Delay. - Halis Can Koyuncuoglu; Youssef N. Raffoul; Nezihe Turhan (Symmetry, 2023)