On the contraction mapping. - Bünyamin Yildiz; Hakan Simsek (Appl. Math. Comput., 2000)

Automatic calculation of Alexander polynomials of (3, k)-Torus knots. - Mustafa Bayram; Hakan Simsek; Necmettin Yildirim (Appl. Math. Comput., 2003)

Automatic calculation of minimum crossing numbers of 3-braids. - Hakan Simsek; Mustafa Bayram; Ismail Can (Appl. Math. Comput., 2003)

The successive approximation method and Padé approximants for solutions the non-linear boundary value problem. - Hakan Simsek; Ercan Çelik (Appl. Math. Comput., 2003)

A work on torus knots K(p, q). - Tamer Ugur; Abdullah Kopuzlu; Hakan Simsek (Appl. Math. Comput., 2003)

On the lateral Cauchy problem. - Hakan Simsek (Appl. Math. Comput., 2004)

An estimate for the completeness of products of solutions of PDE. - Hakan Simsek (Appl. Math. Comput., 2004)

A computer program to calculate Alexander polynomial from Braids presentation of the given knot. - Hakan Simsek; Mustafa Bayram; Ugur Yavuz (Appl. Math. Comput., 2004)

Bulut-tabanli Ortamda Yurutulen Bir Yazilim Performans Testi Deneyimi. - Ali Yamuc; Ethem Cem Ozkan; Burak Ibrahim Sevindi; Hakan Simsek; Turan Bahattin Ozen (UYMS, 2016)

Soft computing based e-commerce website service quality index measurement. - Hakan Simsek; Irem Güvendiren (Electron. Commer. Res. Appl., 2023)

Fuzzy security level metric of hybrid cryptosystem algorithms. - Hakan Simsek; Ömer Faruk Öncel (J. Supercomput., 2025)