Xu Wu

most citedLong time

H^{1}

-stability of fast L2-1

_{σ}

method on general nonuniform meshes for subdiffusion equations

1 citations · 2 across the 3 of their papers we have counts for

collaborators

3 papers

math.NA2022

Roundoff error problem in L2-type methods for time-fractional problems

Chaoyu Quan, Shijie Wang, Xu Wu

Roundoff error problems have occurred frequently in interpolation methods of time-fractional equations, which can lead to undesirable results such as the failure of optimal converg…

math.NA2022★ 1 cited

Long time $H^{1}$ -stability of fast L2-1 $_{σ}$ method on general nonuniform meshes for subdiffusion equations

Chaoyu Quan, Xu Wu, Jiang Yang

In this work, the global-in-time $H^{1}$ -stability of a fast L2-1 $_{σ}$ method on general nonuniform meshes is studied for subdiffusion equations, where the convolution kernel in the C…

math.NA2022★ 1 cited

Global-in-time $H^{1}$ -stability of L2-1 $_{σ}$ method on general nonuniform meshes for subdiffusion equation

Chaoyu Quan, Xu Wu

In this work the L2-1 $_{σ}$ method on general nonuniform meshes is studied for the subdiffusion equation. When the time step ratio is no less than $0.475329$ , a bilinear form associa…

Roundoff error problem in L2-type methods for time-fractional problems

Long time H1-stability of fast L2-1σ​ method on general nonuniform meshes for subdiffusion equations

Global-in-time H1-stability of L2-1σ​ method on general nonuniform meshes for subdiffusion equation

Long time $H^{1}$ -stability of fast L2-1 $_{σ}$ method on general nonuniform meshes for subdiffusion equations

Global-in-time $H^{1}$ -stability of L2-1 $_{σ}$ method on general nonuniform meshes for subdiffusion equation