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- W2891433006 abstract "In this work, a complete error analysis is presented for fully discrete solutions of the subdiffusion equation with a time-dependent diffusion coefficient, obtained by the Galerkin finite element method with conforming piecewise linear finite elements in space and backward Euler convolution quadrature in time. The regularity of the solutions of the subdiffusion model is proved for both nonsmooth initial data and incompatible source term. Optimal-order convergence of the numerical solutions is established using the proven solution regularity and a novel perturbation argument via freezing the diffusion coefficient at a fixed time. The analysis is supported by numerical experiments." @default.
- W2891433006 created "2018-09-27" @default.
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- W2891433006 date "2019-02-06" @default.
- W2891433006 modified "2023-10-10" @default.
- W2891433006 title "Subdiffusion with a time-dependent coefficient: Analysis and numerical solution" @default.
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- W2891433006 doi "https://doi.org/10.1090/mcom/3413" @default.
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