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Error analysis of an L2-type method on graded meshes for semilinear subdiffusion equations

Numerical Analysis 2024-09-09 v2 Numerical Analysis

Abstract

A semilinear initial-boundary value problem with a Caputo time derivative of fractional order α(0,1)\alpha\in(0,1) is considered, solutions of which typically exhibit a singular behaviour at an initial time. For an L2-type discretization of order 3α3-\alpha, we give sharp pointwise-in-time error bounds on graded temporal meshes with arbitrary degree of grading.

Keywords

Cite

@article{arxiv.2408.03420,
  title  = {Error analysis of an L2-type method on graded meshes for semilinear subdiffusion equations},
  author = {Natalia Kopteva},
  journal= {arXiv preprint arXiv:2408.03420},
  year   = {2024}
}
R2 v1 2026-06-28T18:05:49.884Z