Title
A robust error analysis of the OSC method for a multi-term fourth-order sub-diffusion equation
Abstract
In this paper, we consider an orthogonal spline collocation (OSC) method to solve the fourth-order multi-term subdiffusion equation. The L1 method on graded meshes is employed in temporal direction. In the spatial direction, we develop the orthogonal spline collocation method. The stability and convergence of the above mentioned method are proved theoretically, and it's still valid if alpha 1 -> 1(-) new robust error bound is obtained, which is a more natural and desirable result and does not blow up as alpha 1 -> 1(-)Some numerical results are also provided to verify our theoretical analysis and demonstrate the effectiveness of the OSC method.
Year
DOI
Venue
2022
10.1016/j.camwa.2022.01.007
COMPUTERS & MATHEMATICS WITH APPLICATIONS
Keywords
DocType
Volume
Fourth-order subdiffusion equation, Multi-term, L1 method, Collocation method, Stability and convergence
Journal
109
ISSN
Citations 
PageRank 
0898-1221
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Haixiang Zhang100.34
Xuehua Yang200.68
Qiong Tang300.68
Da Xu400.34