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Analytic regularity for a singularly perturbed fourth order reaction-diffusion boundary value problem (2311.06849v2)
Published 12 Nov 2023 in math.CA, cs.NA, and math.NA
Abstract: We consider a fourth order, reaction-diffusion type, singularly perturbed boundary value problem, and the regularity of its solution. Specifically, we provide estimates for arbitrary order derivatves, which are explicit in the singular perturbation parameter as well as the differentiation order. Such estimates are needed for the numerical analysis of high order methods, e.g.hp Finite Element Method (FEM).