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A lowest-degree quasi-conforming finite element de Rham complex on general quadrilateral grids by piecewise polynomials 期刊论文
CALCOLO, 2022, 卷号: 59, 期号: 1, 页码: 32
作者:  Quan, Qimeng;  Ji, Xia;  Zhang, Shuo
收藏  |  浏览/下载:116/0  |  提交时间:2022/04/02
Nonconforming finite element  De Rham complex  General quadrilateral grids  Piecewise polynomial  
Order Reduced Schemes for the Fourth Order Eigenvalue Problems on Multi-Connected Planar Domains 期刊论文
NUMERICAL MATHEMATICS-THEORY METHODS AND APPLICATIONS, 2021, 卷号: 14, 期号: 4, 页码: 920-944
作者:  Xi, Yingxia;  Ji, Xia;  Zhang, Shuo
收藏  |  浏览/下载:114/0  |  提交时间:2022/04/02
Multilevel mixed element method  fourth order eigenvalue problem  multi-connected planar domain  
A Simple Low-Degree Optimal Finite Element Scheme for the Elastic Transmission Eigenvalue Problem 期刊论文
COMMUNICATIONS IN COMPUTATIONAL PHYSICS, 2021, 卷号: 30, 期号: 4, 页码: 1061-1082
作者:  Xi, Yingxia;  Ji, Xia;  Zhang, Shuo
收藏  |  浏览/下载:109/0  |  提交时间:2022/04/02
subject Elastic transmission eigenvalue problem  nonconforming finite element method  high accuracy  
SOURCE RECONSTRUCTION WITH MULTIFREQUENCY SPARSE SCATTERED FIELDS 期刊论文
SIAM JOURNAL ON APPLIED MATHEMATICS, 2021, 卷号: 81, 期号: 6, 页码: 2387-2404
作者:  Ji, Xia;  Liu, Xiaodong
收藏  |  浏览/下载:112/0  |  提交时间:2022/04/02
multipolar point sources  multifrequency scattered fields  sparse data  sampling method  
A High Accuracy Nonconforming Finite Element Scheme for Helmholtz Transmission Eigenvalue Problem 期刊论文
JOURNAL OF SCIENTIFIC COMPUTING, 2020, 卷号: 83, 期号: 3, 页码: 20
作者:  Xi, Yingxia;  Ji, Xia;  Zhang, Shuo
收藏  |  浏览/下载:131/0  |  提交时间:2020/09/23
Nonconforming finite element method  Transmission eigenvalues  High accurary  
A multi-level mixed element scheme of the two-dimensional Helmholtz transmission eigenvalue problem 期刊论文
IMA JOURNAL OF NUMERICAL ANALYSIS, 2020, 卷号: 40, 期号: 1, 页码: 686-707
作者:  Xi, Yingxia;  Ji, Xia;  Zhang, Shuo
收藏  |  浏览/下载:135/0  |  提交时间:2020/09/23
mixed finite element method  transmission eigenvalue  multi-level scheme  
Inverse Fluid-solid Interaction Scattering Problem Using Phased and Phaseless Far Field Data 期刊论文
ACTA MATHEMATICAE APPLICATAE SINICA-ENGLISH SERIES, 2020, 卷号: 36, 期号: 1, 页码: 74-94
作者:  Ji, Xia;  Jia, Yun-fei;  Liu, Xiao-dong
收藏  |  浏览/下载:213/0  |  提交时间:2020/05/24
fluid-solid interaction scattering  direct sampling method  far field pattern  phaseless  phase retrieval  
IDENTIFICATION OF POINT-LIKE OBJECTS WITH MULTIFREQUENCY SPARSE DATA 期刊论文
SIAM JOURNAL ON SCIENTIFIC COMPUTING, 2020, 卷号: 42, 期号: 4, 页码: A2325-A2343
作者:  Ji, Xia;  Liu, Xiaodong
收藏  |  浏览/下载:129/0  |  提交时间:2021/01/14
inverse scattering  multifrequency  sparse data  uniqueness  sampling method  
INVERSE ELECTROMAGNETIC SOURCE SCATTERING PROBLEMS WITH MULTIFREQUENCY SPARSE PHASED AND PHASELESS FAR FIELD DATA 期刊论文
SIAM JOURNAL ON SCIENTIFIC COMPUTING, 2019, 卷号: 41, 期号: 6, 页码: B1368-B1388
作者:  Ji, Xia;  Liu, Xiaodong
收藏  |  浏览/下载:179/0  |  提交时间:2020/09/23
electromagnetic source scattering  phaseless far field data  uniqueness  phase retrieval  direct sampling methods