A new inverse problem for the diffusion operator. - Hikmet Koyunbakan (Appl. Math. Lett., 2006)

Solution of a discontinuous inverse nodal problem on a finite interval. - Hikmet Koyunbakan; Etibar S. Panakhov (Math. Comput. Model., 2006)

The inverse nodal problem for a differential operator with an eigenvalue in the boundary condition. - Hikmet Koyunbakan (Appl. Math. Lett., 2008)

Inverse problem for a singular differential operator. - Hikmet Koyunbakan; Etibar S. Panakhov (Math. Comput. Model., 2008)

Erratum to "Inverse nodal problem for differential operator with eigenvalue in the boundary condition" [Appl. Math. Letters 21 (2008) 1301-1305]. - Hikmet Koyunbakan (Appl. Math. Lett., 2009)

Uniform Statistical Convergence on Time Scales. - Yavuz Altin; Hikmet Koyunbakan; Emrah Yilmaz (J. Appl. Math., 2014)

On the stability of the solution of the inverse problem for Dirac operator. - Seyfollah Mosazadeh; Hikmet Koyunbakan (Appl. Math. Lett., 2020)

Discrete Sturm-Liouville operators having the hydrogen atom potential. - Seyfollah Mosazadeh; Hikmet Koyunbakan (Appl. Math. Comput., 2025)

A machine learning radial basis deep neural network procedure for the solutions of the nonlinear breast cancer model. - Zulqurnain Sabir; Aline Nazzal; Abdullah Srour; Hikmet Koyunbakan; Saira Bhatti (Int. J. Model. Simul. Sci. Comput., 2025)