The backward problem for radially symmetric time‐fractional diffusion‐wave equation under Robin boundary condition

Abstract

This paper is devoted to solve the backward problem for radially symmetric time‐fractional diffusion‐wave equation under Robin boundary condition. This problem is ill‐posed and we apply an iterative regularization method to solve it. The error estimates are obtained under the a priori and a posteriori parameter choice rules. Numerical results show that the proposed method is efficient and stable.