A C0 finite element method for the biharmonic problem with Dirichlet boundary conditions in a polygonal domain. - Hengguang Li; Charuka D. Wickramasinghe; Peimeng Yin (CoRR, 2022)

A Mixed Finite Element Method for Singularly Perturbed Fourth Oder Convection-Reaction-Diffusion Problems on Shishkin Mesh. - Charuka D. Wickramasinghe (CoRR, 2023)

A Graded Mesh Refinement for 2D Poisson's Equation on Non Convex Polygonal Domains. - Charuka D. Wickramasinghe; Priyanka Ahire (CoRR, 2024)