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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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Hu Qiya [8]
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A Robust Multilevel Preconditioner Based on a Domain Decomposition Method for the Helmholtz Equation
期刊论文
JOURNAL OF SCIENTIFIC COMPUTING, 2019, 卷号: 81, 期号: 1, 页码: 291-311
Authors:
Lu, Peipei
;
Xu, Xuejun
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View/Download:24/0
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Submit date:2019/10/28
Multilevel method
Helmholtz equation
High wave number
Continuous interior penalty finite element method
GMRES method
Overlapping domain decomposition method
Generalized plane wave discontinuous Galerkin methods for nonhomogeneous Helmholtz equations with variable wave numbers
期刊论文
INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS, 2019, 页码: 22
Authors:
Yuan, Long
;
Hu, Qiya
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View/Download:21/0
  |  
Submit date:2020/01/10
Helmholtz equation
nonhomogeneous
variable wave numbers
generalized plane wave
local spectral elements
error estimates
AN OPTIMIZED SCHWARZ METHOD WITH RELAXATION FOR THE HELMHOLTZ EQUATION: THE NEGATIVE IMPACT OF OVERLAP
期刊论文
ESAIM-MATHEMATICAL MODELLING AND NUMERICAL ANALYSIS-MODELISATION MATHEMATIQUE ET ANALYSE NUMERIQUE, 2019, 卷号: 53, 期号: 1, 页码: 249-268
Authors:
Liu, Yongxiang
;
Xu, Xuejun
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View/Download:21/0
  |  
Submit date:2020/01/10
optimized Schwarz method
the Helmholtz equation
overlapping size
ANALYSIS OF POLLUTION-FREE APPROACHES FOR MULTI-DIMENSIONAL HELMHOLTZ EQUATIONS
期刊论文
INTERNATIONAL JOURNAL OF NUMERICAL ANALYSIS AND MODELING, 2019, 卷号: 16, 期号: 3, 页码: 412-435
Authors:
Wang, Kun
;
Wong, Yau Shu
;
Huang, Jizu
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View/Download:25/0
  |  
Submit date:2019/04/02
Helmholtz equation
error estimate
finite difference method
polar and spherical coordinates
pollution-free scheme
AN ADDITIVE OVERLAPPING DOMAIN DECOMPOSITION METHOD FOR THE HELMHOLTZ EQUATION
期刊论文
SIAM JOURNAL ON SCIENTIFIC COMPUTING, 2019, 卷号: 41, 期号: 2, 页码: A1252-A1277
Authors:
Leng, Wei
;
Ju, Lili
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View/Download:22/0
  |  
Submit date:2020/01/10
additive domain decomposition method
Helmholtz equation
perfectly matched layer
truncated domain problem
error analysis
parallel computing
Uniqueness in inverse acoustic and electromagnetic scattering by penetrable obstacles with embedded objects
期刊论文
JOURNAL OF DIFFERENTIAL EQUATIONS, 2018, 卷号: 265, 期号: 12, 页码: 6352-6383
Authors:
Yang, Jiaqing
;
Zhang, Bo
;
Zhang, Haiwen
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View/Download:61/0
  |  
Submit date:2018/11/16
Comparisons of three kinds of plane wave methods for the Helmholtz equation and time-harmonic Maxwell equations with complex wave numbers
期刊论文
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 2018, 卷号: 344, 页码: 323-345
Authors:
Yuan, Long
;
Hu, Qiya
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View/Download:27/0
  |  
Submit date:2018/09/08
Helmholtz equation
Time-harmonic Maxwell's equations
Well posedness
Electromagnetic wave
Plane wave basis
Error estimates
Fast imaging of scattering obstacles from phaseless far-field measurements at a fixed frequency
期刊论文
INVERSE PROBLEMS, 2018, 卷号: 34, 期号: 10, 页码: 24
Authors:
Zhang, Bo
;
Zhang, Haiwen
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View/Download:31/0
  |  
Submit date:2018/10/07
inverse scattering
Helmholtz equation
phaseless far-field data
direct imaging method
A Two-Steps Method Based on Plane Wave for Nonhomogeneous Helmholtz Equations in Inhomogeneous Media
期刊论文
NUMERICAL MATHEMATICS-THEORY METHODS AND APPLICATIONS, 2018, 卷号: 11, 期号: 3, 页码: 453-476
Authors:
Hu, Qiya
;
Zhao, Lin
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View/Download:21/0
  |  
Submit date:2018/09/08
Nonhomogeneous Helmholtz equation
inhomogeneous media
plane wave method
discontinuous Galerkin method
errors
preconditioner
A plane wave method combined with local spectral elements for nonhomogeneous Helmholtz equation and time-harmonic Maxwell equations
期刊论文
ADVANCES IN COMPUTATIONAL MATHEMATICS, 2018, 卷号: 44, 期号: 1, 页码: 245-275
Authors:
Hu, Qiya
;
Yuan, Long
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View/Download:21/0
  |  
Submit date:2018/07/30
Helmholtz equation
Time-harmonic Maxwell equations
Nonhomogeneous
Local spectral element
Plane wave basis functions
Error estimates