A weak Galerkin finite element method on temporal graded meshes for the multi-term time fractional diffusion equations. - Suayip Toprakseven (Comput. Math. Appl., 2022)

Optimal order uniform convergence in energy and balanced norms of weak Galerkin finite element method on Bakhvalov-type meshes for nonlinear singularly perturbed problems. - Suayip Toprakseven (Comput. Appl. Math., 2022)

Error analysis of a weak Galerkin finite element method for two-parameter singularly perturbed differential equations in the energy and balanced norms. - Suayip Toprakseven; Peng Zhu (Appl. Math. Comput., 2023)

A numerical method for singularly perturbed convection-diffusion-reaction equations on polygonal meshes. - Naresh Kumar; Suayip Toprakseven; Ram Jiwari (Comput. Appl. Math., 2024)

A Dimensional-Splitting Weak Galerkin Finite Element Method for 2D Time-Fractional Diffusion Equation. - Aniruddha Seal; Srinivasan Natesan; Suayip Toprakseven (J. Sci. Comput., 2024)

A weak Galerkin finite element method for singularly perturbed problems with two small parameters on Bakhvalov-type meshes. - Suayip Toprakseven; Aditya Kaushik; Manju Sharma (Numer. Algorithms, 2024)

Anisotropic error analysis of weak Galerkin finite element method for singularly perturbed biharmonic problems. - Aayushman Raina; Srinivasan Natesan; Suayip Toprakseven (Math. Comput. Simul., 2025)