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中国科学院数学与系统科学研究院机构知识库
KMS Of Academy of mathematics and systems sciences, CAS
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An efficient cascadic multigrid solver for 3-D magnetotelluric forward modelling problems using potentials
期刊论文
GEOPHYSICAL JOURNAL INTERNATIONAL, 2022, 卷号: 230, 期号: 3, 页码: 1834-1851
Authors:
Pan, Kejia
;
Wang, Jinxuan
;
Hu, Shuanggui
;
Ren, Zhengyong
;
Cui, Tao
;
Guo, Rongwen
;
Tang, Jingtian
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View/Download:30/0
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Submit date:2023/02/07
Electrical properties
Magnetotellurics
Numerical modelling
Numerical solutions
Fast matrix splitting preconditioners for higher dimensional spatial fractional diffusion equations
期刊论文
JOURNAL OF COMPUTATIONAL PHYSICS, 2020, 卷号: 404, 页码: 13
Authors:
Bai, Zhong-Zhi
;
Lu, Kang-Ya
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View/Download:116/0
  |  
Submit date:2020/05/24
Spatial fractional diffusion equations
Shifted finite-difference discretization
Block Toeplitz-like matrix
Block circulant-like matrix
Preconditioning
Eigenvalue distribution
A NOVEL LEAST SQUARES METHOD FOR HELMHOLTZ EQUATIONS WITH LARGE WAVE NUMBERS
期刊论文
SIAM JOURNAL ON NUMERICAL ANALYSIS, 2020, 卷号: 58, 期号: 5, 页码: 3091-3123
Authors:
Hu, Qiya
;
Song, Rongrong
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View/Download:111/0
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Submit date:2021/01/14
Helmholtz equations
inhomogeneous media
large wave number
auxiliary unknowns
least squares
error estimates
preconditioner
An improved Dai-Kou conjugate gradient algorithm for unconstrained optimization
期刊论文
COMPUTATIONAL OPTIMIZATION AND APPLICATIONS, 2019, 页码: 23
Authors:
Liu, Zexian
;
Liu, Hongwei
;
Dai, Yu-Hong
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View/Download:115/0
  |  
Submit date:2020/05/24
Conjugate gradient algorithm
Limited memory
Quasi-Newton method
Preconditioned conjugate gradient algorithm
Global convergence
On multistep Rayleigh quotient iterations for Hermitian eigenvalue problems
期刊论文
COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2019, 卷号: 77, 期号: 9, 页码: 2396-2406
Authors:
Bai, Zhong-Zhi
;
Miao, Cun-Qiang
;
Jian, Shuai
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View/Download:122/0
  |  
Submit date:2020/01/10
Hermitian eigenvalue problem
Rayleigh quotient iteration
Multistep modification
Inexact solve
Preconditioning
An Improved Domain Decomposition Method for Drop Impact Reliability Analysis of 3-D ICs
期刊论文
IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY, 2018, 卷号: 8, 期号: 10, 页码: 1788-1799
Authors:
Zhou, Hao
;
Zhu, Hengliang
;
Cui, Tao
;
Pan, David Z.
;
Zhou, Dian
;
Zeng, Xuan
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View/Download:132/0
  |  
Submit date:2018/11/16
Domain decomposition (DD)
drop test
reliability
through-silicon via (TSV)
Analysis on inexact block diagonal preconditioners for elliptic PDE-constrained optimization problems
期刊论文
COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2017, 卷号: 74, 期号: 10, 页码: 2423-2437
Authors:
Huang, Na
;
Ma, Chang-Feng
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View/Download:415/111
  |  
Submit date:2018/07/25
PDE-constrained optimization
Saddle point matrices
Preconditioner
Cholesky decomposition
Spectral bound
Diagonal and Toeplitz splitting iteration methods for diagonal-plus-Toeplitz linear systems from spatial fractional diffusion equations
期刊论文
NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS, 2017, 卷号: 24, 期号: 4, 页码: 15
Authors:
Bai, Zhong-Zhi
;
Lu, Kang-Ya
;
Pan, Jian-Yu
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  |  
View/Download:127/0
  |  
Submit date:2018/07/30
convergence
Krylov subspace method
matrix splitting iteration
preconditioning
spatial fractional diffusion equation
spectral analysis
A nonmonotone inexact Newton method for unconstrained optimization
期刊论文
OPTIMIZATION LETTERS, 2017, 卷号: 11, 期号: 5, 页码: 947-965
Authors:
Gao, Huan
;
Zhang, Hai-Bin
;
Li, Zhi-Bao
;
Tadjouddine, Emmanuel
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  |  
View/Download:86/0
  |  
Submit date:2018/07/30
Inexact Newton method
Nonmonotone line search
Preconditioned conjugate gradient
Global convergence
Convergence analysis on multigrid methods for elliptic problems with large jumps in coefficients
期刊论文
IMA JOURNAL OF NUMERICAL ANALYSIS, 2015, 卷号: 35, 期号: 4, 页码: 1888-1912
Authors:
Zheng, Hui
;
Wu, Jinbiao
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View/Download:84/0
  |  
Submit date:2018/07/30
multigrid method
jump coefficient problem
discrete harmonic extension
nearly singular problem
preconditioned conjugate gradient method