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The quasi-reversibility method for a final value problem of the time-fractional diffusion equation with inhomogeneous source
被引:27
作者:
Yang, Fan
[1
]
Ren, Yu-Peng
[1
]
Li, Xiao-Xiao
[1
]
机构:
[1] Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China
基金:
中国国家自然科学基金;
关键词:
inhomogeneous source;
ill-posed problem;
regularization method;
time-fractional backward diffusion problem;
FINITE-DIFFERENCE APPROXIMATIONS;
BOUNDARY VALUE METHOD;
ANOMALOUS DIFFUSION;
BACKWARD PROBLEM;
SPACE;
REGULARIZATION;
D O I:
10.1002/mma.4705
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
This paper is devoted to discuss a multidimensional backward heat conduction problem for time-fractional diffusion equation with inhomogeneous source. This problem is ill-posed. We use quasi-reversibility regularization method to solve this inverse problem. Moreover, the convergence estimates between regularization solution and the exact solution are obtained under the a priori and the a posteriori choice rules. Finally, the numerical examples for one-dimensional and two-dimensional cases are presented to show that our method is feasible and effective.
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页码:1774 / 1795
页数:22
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