20 citations · 31 across the 3 of their papers we have counts for
3 papers
math.NA2021★ 11 cited
Robust fast method for variable-order time-fractional diffusion equations without regularity assumptions
Jia-Li Zhang, Zhi-Wei Fang, Hai-Wei Sun
In this paper, we develop a robust fast method for mobile-immobile variable-order (VO) time-fractional diffusion equations (tFDEs), superiorly handling the cases of small or vanish…
math.NA2021★ 20 cited
Fast second-order evaluation for variable-order Caputo fractional derivative with applications to fractional sub-diffusion equations
Jia-li Zhang, Zhi-wei Fang, Hai-wei Sun
In this paper, we propose a fast second-order approximation to the variable-order (VO) Caputo fractional derivative, which is developed based on - formula and the exponent…
math.NA2021
Exponential-sum-approximation technique for variable-order time-fractional diffusion equations
Jia-Li Zhang, Zhi-Wei Fang, Hai-Wei Sun
In this paper, we study the variable-order (VO) time-fractional diffusion equations. For a VO function , we develop an exponential-sum-approximation (ESA) technique t…