3 papers
math.NA2026
Error estimate of the nonuniform BDF3-L2 method for subdiffusion equations via multiscale solution decomposition
Wenlin Qiu, Kexin Li, Yiqun Li +1
Numerical experiments reported by Quan and Wu [SIAM J Numer Anal 61 (2023) 2106-2132] show that the observed temporal convergence rates of nonuniform L2 methods for subdiffusion mo…
math.NA2026
The optimal error analysis of nonuniform L1 method for the variable-exponent subdiffusion model
Wenlin Qiu, Kexin Li, Yiqun Li +1
This work investigates the optimal error estimate of the fully discrete scheme for the variable-exponent subdiffusion model under the nonuniform temporal mesh. We apply the perturb…
math.NA2025
Variable-order fractional wave equation: Analysis, numerical approximation, and fast algorithm
Jinhong Jia, Chuanting Jiang, Yiqun Li +2
We investigate a local modification of a variable-order fractional wave equation, which describes the propagation of diffusive wave in viscoelastic media with evolving physical pro…