Emergent Mind
Pointwise-in-time a posteriori error control for time-fractional parabolic equations
(2105.05848)
Published May 12, 2021
in
math.NA
and
cs.NA
Abstract
For time-fractional parabolic equations with a Caputo time derivative of order $\alpha\in(0,1)$, we give pointwise-in-time a posteriori error bounds in the spatial $L2$ and $L\infty$ norms. Hence, an adaptive mesh construction algorithm is applied for the L1 method, which yields optimal convergence rates $2-\alpha$ in the presence of solution singularities.
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