Chaotic n-Dimensional Euclidean and Hyperbolic Open Billiards and Chaotic Spinning Planar Billiards. - Ali Deniz; Judy Kennedy; Sahin Koçak; Andrei V. Ratiu; Cevat Üstün; James A. Yorke (SIAM J. Appl. Dyn. Syst., 2008)

Stability of Graphs. - Bünyamin Demir; Ali Deniz; Sahin Koçak (Electron. J. Comb., 2009)

Trimming of finite subsets of the Manhattan plane. - Gökçe Çakmak; Ali Deniz; Sahin Koçak (Discret. Optim., 2025)