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Optimal rotated block-diagonal preconditioning for discretized optimal control problems constrained with fractional time-dependent diffusive equations
期刊论文
OAI收割
APPLIED NUMERICAL MATHEMATICS, 2021, 卷号: 163, 页码: 126-146
作者:
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浏览/下载:29/0
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提交时间:2021/04/26
Fractional optimal control problem
Numerical discretizations
Block two-by-two linear system
Preconditioning
Spectral bounds
Krylov subspace iteration methods
Convergence property
Fast matrix splitting preconditioners for higher dimensional spatial fractional diffusion equations
期刊论文
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JOURNAL OF COMPUTATIONAL PHYSICS, 2020, 卷号: 404, 页码: 13
作者:
Bai, Zhong-Zhi
;
Lu, Kang-Ya
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收藏
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浏览/下载:14/0
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提交时间:2020/05/24
Spatial fractional diffusion equations
Shifted finite-difference discretization
Block Toeplitz-like matrix
Block circulant-like matrix
Preconditioning
Eigenvalue distribution
On regularized Hermitian splitting iteration methods for solving discretized almost-isotropic spatial fractional diffusion equations
期刊论文
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NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS, 2020, 卷号: 27, 期号: 1, 页码: 21
作者:
Bai, Zhong-Zhi
;
Lu, Kang-Ya
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收藏
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浏览/下载:19/0
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提交时间:2020/06/30
convergence property
matrix splitting iteration
preconditioning
spatial fractional diffusion equation
Regularized HSS iteration methods for stabilized saddle-point problems
期刊论文
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IMA JOURNAL OF NUMERICAL ANALYSIS, 2019, 卷号: 39, 期号: 4, 页码: 1888-1923
作者:
Bai, Zhong-Zhi
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收藏
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浏览/下载:71/0
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提交时间:2020/01/10
stabilized saddle-point problem
Hermitian and skew-Hermitian splitting
stationary iteration method
inexact implementation
preconditioning
convergence
Frequency-domain acoustic wave modeling using regularized preconditioning iterative method
期刊论文
OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2019, 卷号: 62, 期号: 5, 页码: 1824-1834
作者:
Si JieGe
;
Li XiaoFan
;
Zhang Huan
;
Li BingFei
;
Ma XiaoNa
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收藏
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浏览/下载:71/0
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提交时间:2019/06/10
Regularized preconditioning technique
Quasi-Newton method
Acoustic wave modeling
On multistep Rayleigh quotient iterations for Hermitian eigenvalue problems
期刊论文
OAI收割
COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2019, 卷号: 77, 期号: 9, 页码: 2396-2406
作者:
Bai, Zhong-Zhi
;
Miao, Cun-Qiang
;
Jian, Shuai
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收藏
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浏览/下载:49/0
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提交时间:2020/01/10
Hermitian eigenvalue problem
Rayleigh quotient iteration
Multistep modification
Inexact solve
Preconditioning
On spectral clustering of HSS preconditioner for generalized saddle-point matrices
期刊论文
OAI收割
LINEAR ALGEBRA AND ITS APPLICATIONS, 2018, 卷号: 555, 页码: 285-300
作者:
Bai, Zhong-Zhi
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收藏
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浏览/下载:34/0
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提交时间:2018/10/07
Generalized saddle-point problem
Hermitian and skew-Hermitian splitting
Preconditioning
Spectral property
Respectively scaled HSS iteration methods for solving discretized spatial fractional diffusion equations
期刊论文
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NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS, 2018, 卷号: 25, 期号: 5, 页码: 18
作者:
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浏览/下载:23/0
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提交时间:2019/01/11
convergence property
HSS iteration
matrix splitting
preconditioning
respective scaling
spatial fractional diffusion equation
Diagonal and circulant or skew-circulant splitting preconditioners for spatial fractional diffusion equations
期刊论文
OAI收割
COMPUTATIONAL & APPLIED MATHEMATICS, 2018, 卷号: 37, 期号: 4, 页码: 4196-4218
作者:
Lu, Kang-Ya
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收藏
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浏览/下载:22/0
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提交时间:2018/10/07
Circulant matrix
Skew-circulant matrix
Preconditioning
Spatial fractional diffusion equations
Quasi-HSS iteration methods for non-Hermitian positive definite linear systems of strong skew-Hermitian parts
期刊论文
OAI收割
NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS, 2018, 卷号: 25, 期号: 4, 页码: 19
作者:
Bai, Zhong-Zhi
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收藏
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浏览/下载:23/0
  |  
提交时间:2019/12/13
convergence
Hermitian and skew-Hermitian splitting
iteration method
preconditioning
system of linear equations