The computational work and storage of numerically solving the time fractional PDEs are generally huge for the traditional direct methods since they require total memory and work …
Partial differential equations (PDEs) are used with huge success to model phenomena across all scientific and engineering disciplines. However, across an equally wide swath …
In this paper, a new alternating direction implicit Galerkin--Legendre spectral method for the two-dimensional Riesz space fractional nonlinear reaction-diffusion equation is developed …
D Li, HL Liao, W Sun, J Wang, J Zhang - arXiv preprint arXiv:1612.00562, 2016 - arxiv.org
This paper is concerned with numerical solutions of time-fractional nonlinear parabolic problems by a class of $ L1 $-Galerkin finite element methods. The analysis of $ L1 …
In this paper, we consider spectral approximation of fractional differential equations (FDEs). A main ingredient of our approach is to define a new class of generalized Jacobi functions …
Fractional partial order diffusion equations are a generalization of classical partial differential equations, used to model anomalous diffusion phenomena. When using the …
Y Yan, ZZ Sun, J Zhang - Communications in Computational Physics, 2017 - cambridge.org
The fractional derivatives include nonlocal information and thus their calculation requires huge storage and computational cost for long time simulations. We present an efficient and …
W Bu, Y Tang, J Yang - Journal of Computational Physics, 2014 - Elsevier
In this article, a class of two-dimensional Riesz space fractional diffusion equations is considered. Some fractional spaces are established and some equivalences between …
Z Hao, Z Sun, W Cao - Journal of Computational Physics, 2015 - Elsevier
A new fourth-order difference approximation is derived for the space fractional derivatives by using the weighted average of the shifted Grünwald formulae combining the compact …