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On the diophantine equation x(2)-Dy-2 = n 期刊论文
SCIENCE CHINA-MATHEMATICS, 2013, 卷号: 56, 期号: 2, 页码: 227-238
作者:  Wei DaSheng
收藏  |  浏览/下载:99/0  |  提交时间:2021/01/14
QUADRATIC FIELDS  SOLVABILITY  torus  Hilbert class field  reciprocity law  
The Cauchy problem of generalized Landau-Lifshitz equation into S (n) 期刊论文
SCIENCE CHINA-MATHEMATICS, 2013, 卷号: 56, 期号: 2, 页码: 283-300
作者:  Song Chong;  Yu Jie
收藏  |  浏览/下载:89/0  |  提交时间:2021/01/14
SCHRODINGER FLOW  KAHLER-MANIFOLDS  MAPS  generalized Landau-Lifshitz  geometric energy method  
Choice of weights in FMA estimators under general parametric models 期刊论文
SCIENCE CHINA-MATHEMATICS, 2013, 卷号: 56, 期号: 3, 页码: 443-457
作者:  Zhang XinYu;  Zou GuoHua;  Liang Hua
收藏  |  浏览/下载:103/0  |  提交时间:2021/01/14
REGRESSION  SELECTION  asymptotic optimality  likelihood inference  model averaging  model selection  model selection diagnostics  
A posteriori error estimator for eigenvalue problems by mixed finite element method 期刊论文
SCIENCE CHINA-MATHEMATICS, 2013, 卷号: 56, 期号: 5, 页码: 887-900
作者:  Jia ShangHui;  Chen HongTao;  Xie HeHu
收藏  |  浏览/下载:121/0  |  提交时间:2021/01/14
SUPERCONVERGENCE RESULT  ELLIPTIC PROBLEMS  APPROXIMATION  CONVERGENCE  second order elliptic eigenvalue problem  mixed finite element method  Raviart-Thomas  a posteriori error estimate  adaptive  
Application of auxiliary space preconditioning in field-scale reservoir simulation 期刊论文
SCIENCE CHINA-MATHEMATICS, 2013, 卷号: 56, 期号: 12, 页码: 2737-2751
作者:  Hu XiaoZhe;  Xu JinChao;  Zhang ChenSong
收藏  |  浏览/下载:122/0  |  提交时间:2021/01/14
ITERATIVE METHODS  BLOCK  EQUATIONS  SYSTEMS  GRIDS  reservoir simulation  black-oil model  fully implicit method  auxiliary space preconditioning  algebraic multigrid method  Krylov subspace iterative method  
Approximate acoustic cloaking in inhomogeneous isotropic space 期刊论文
SCIENCE CHINA-MATHEMATICS, 2013, 卷号: 56, 期号: 12, 页码: 2631-2644
作者:  Li JingZhi;  Liu HongYu;  Mao ShiPeng
收藏  |  浏览/下载:105/0  |  提交时间:2021/01/14
SCATTERING  transformation optics  approximate invisibility cloaking  scattering estimates  integral operator equations  
Rotated block triangular preconditioning based on PMHSS 期刊论文
SCIENCE CHINA-MATHEMATICS, 2013, 卷号: 56, 期号: 12, 页码: 2523-2538
作者:  Bai ZhongZhi
收藏  |  浏览/下载:117/0  |  提交时间:2021/01/14
HERMITIAN SPLITTING METHODS  DEFINITE LINEAR-SYSTEMS  NONSYMMETRIC MATRICES  block two-by-two matrix  PMHSS preconditioner  block triangular preconditioning  product-type preconditioning  eigen-properties  
Extrapolation methods to compute hypersingular integral in boundary element methods 期刊论文
SCIENCE CHINA-MATHEMATICS, 2013, 卷号: 56, 期号: 8, 页码: 1647-1660
作者:  Li Jin;  Zhang XiaoPing;  Yu DeHao
收藏  |  浏览/下载:168/0  |  提交时间:2021/01/14
CAUCHY PRINCIPAL VALUE  FINITE-PART INTEGRALS  GAUSSIAN QUADRATURE  SINGULAR-INTEGRALS  NUMERICAL-SOLUTION  EQUATIONS  SUPERCONVERGENCE  CIRCLE  hypersingular integrals  trapezoidal rule  asymptotic error expansion  extrapolation algorithm  
Necessary and sufficient conditions for Lipschitz ergodicity and generalized ergodicity 期刊论文
SCIENCE CHINA-MATHEMATICS, 2013, 卷号: 56, 期号: 4, 页码: 777-787
作者:  Zheng ZuoHuan
收藏  |  浏览/下载:123/0  |  提交时间:2021/01/14
DYNAMICAL-SYSTEMS  Lipschitz ergodicity  generalized ergodicity  dual invariant set  continuation region  O-expansive set