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Carleman estimate for wave equations coupled with the second order terms 期刊论文
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2022, 卷号: 506, 期号: 2, 页码: 24
Authors:  Jiang, Zifan;  Zhang, Wensheng
Favorite  |  View/Download:40/0  |  Submit date:2022/04/02
Carleman estimates  Coupled hyperbolic system  

Elastic wave full-waveform inversion in the time domain by the trust region method

期刊论文

JOURNAL OF APPLIED GEOPHYSICS, 2022, 卷号: 197, 页码: 16
Authors:  Zhang, Wensheng;  Li, Yijun
Favorite  |  View/Download:16/0  |  Submit date:2022/06/21
Elastic wave equations  Full-waveform inversion  Media coefficients  Trust region method  L-BFGS  
Stability Analysis for Wave Simulation in 3D Poroelastic Media with the Staggered-Grid Method 期刊论文
COMMUNICATIONS IN COMPUTATIONAL PHYSICS, 2020, 卷号: 28, 期号: 2, 页码: 743-767
Authors:  Zhang, Wensheng
Favorite  |  View/Download:55/0  |  Submit date:2020/09/23
3D  stability analysis  poroelastic media  wave propagation  staggered-grid  
H?lder stability in determining elastic coefficients of Biot's system in poroelastic media 期刊论文
Journal of Physics Communications, 2020, 卷号: 4, 期号: 8
Authors:  Zhang,Wensheng;  Jiang,Zifan
Favorite  |  View/Download:53/0  |  Submit date:2021/01/14
H?lder stability  inverse problem  elastic coefficients  Carleman estimate  Biot's system  poroelastic media  
Acoustic multi-parameter full waveform inversion based on the wavelet method 期刊论文
INVERSE PROBLEMS IN SCIENCE AND ENGINEERING, 2020, 页码: 28
Authors:  Zhang, Wensheng
Favorite  |  View/Download:65/0  |  Submit date:2020/09/23
Full waveform inversion  multi-parameter  wavelet method  numerical schemes  acoustic wave  time domain  
Convergence analysis of a coefficient inverse problem for the semi-discrete damped wave equation 期刊论文
APPLICABLE ANALYSIS, 2020, 页码: 26
Authors:  Zhang, Wensheng;  Zhao, Zhongliu
Favorite  |  View/Download:56/0  |  Submit date:2020/09/23
Discrete Carleman estimates  damped wave equation  coefficient inverse problem  semi-discrete  convergence  
High order symplectic integrators based on continuous-stage Runge-Kutta-Nystrom methods 期刊论文
APPLIED MATHEMATICS AND COMPUTATION, 2019, 卷号: 361, 页码: 670-679
Authors:  Tang, Wensheng;  Sun, Yajuan;  Zhang, Jingjing
Favorite  |  View/Download:84/0  |  Submit date:2020/01/10
Continuous-stage Runge-Kutta-Nystrom methods  Hamiltonian systems  Symplectic integrators  Legendre polynomial expansion  Simplifying assumptions  
Logarithmic stability of an inverse problem for Biot’s consolidation system in poro-elasticity 期刊论文
Journal of Physics Communications, 2019, 卷号: 3, 期号: 11
Authors:  Zhang,Wensheng;  Jiang,Zifan
Favorite  |  View/Download:68/0  |  Submit date:2020/03/10
Carleman estimate  inverse problem  Biot’s system  
Elastic full waveform inversion on unstructured meshes by the finite element method 期刊论文
PHYSICA SCRIPTA, 2019, 卷号: 94, 期号: 11, 页码: 16
Authors:  Zhang, Wensheng
Favorite  |  View/Download:66/0  |  Submit date:2019/10/28
unstructured triangular meshes  elastic wave  full waveform inversion  finite element method  iterative Tikhonov regularization  irregular topography  conjugate gradient method  
A multiscale method for wave propagation in 3D heterogeneous poroelastic media 期刊论文
GEOPHYSICS, 2019, 卷号: 84, 期号: 4, 页码: T237-T257
Authors:  Zhang, Wensheng;  Zheng, Hui
Favorite  |  View/Download:77/0  |  Submit date:2020/01/10