研究了大型稀疏线性互补问题的异步并行算法
及其收敛性理论。
对于一般非对称线性代数方程组, 构造了有效的
对称与反对称分裂迭代算法, 并建立了算法的
收敛理论。
同时, 还研究了若干特殊的矩阵方程的数学
性质和直接解法。
2002年正式发表的论文如下:
- On the convergence of nonstationary multisplitting
two-stage iteration methods for hermitian positive definite
linear systems,
Journal of Computational and Applied Mathematics,
138:2(2002), 287-296. (With C.-L. Wang)
- Splitting-MINRES methods for linear systems
with the coefficient matrix
with a dominant indefinite symmetric part,
Mathematica Numerica Sinica,
24:1(2002), 113-128. (In Chinese) (With S.-X. Qiu)
- Matrix multisplitting methods with applications to
linear complementarity problems:
Parallel asynchronous methods,
International Journal of Computer Mathematics,
79:2(2002), 205-232. (With D.J. Evans)
- Relaxed asynchronous iterations for
the linear complementarity problem,
Journal of Computational Mathematics,
20:1(2002), 97-112. (With Y.-G. Huang)
- Least-squares solutions of the matrix equation
A*XA=D in bisymmetric matrix set,
Mathematica Numerica Sinica,
24:1(2002), 9-20. (In Chinese) (With A.-P. Liao)
- On the construction of positive definite
Jacobian matrix from two eigenpairs,
Journal of Numerical Methods
and Computer Applications,
23:2(2002), 131-138. (In Chinese) (With A.-P. Liao)
- A regularized conjugate gradient method for
symmetric positive definite system of linear equations,
Journal of Computational Mathematics,
20:4(2002), 437-448. (With S.-L. Zhang)
- Convergence of asynchronous multisplitting two-stage
relaxation methods for block systems of weakly
nonlinear equations,
In Proceedings of the Fifth China-Japan
Seminar on Numerical Mathematics,
Z.-C. Shi and H. Kawarada eds.,
Science Press of China,
Beijing/New York, 1-14(2002).
- The constrained solutions of two matrix equations,
Acta Mathematica Sinica (English Series),
18:4(2002), 671-678. (With A.-P. Liao)
- Experimental study of the asynchronous multisplitting
relaxation methods for the linear complementarity problems,
Journal of Computational Mathematics,
20:6(2002), 561-574.
2002年参加国际国内学术会议, 并做邀请报告如下:
- Preconditioners for nonsymmetric block
Toeplitz-like-plus-diagonal linear systems,
International Conference
on Structured Matrices,
The Chinese University of Hong Kong
and University of Hong Kong, P.R. China,
May 29--June 1, 2002.
(30 minutes)
- Preconditioners for nonsymmetric block
Toeplitz-like-plus-diagonal linear systems,
The Sixth Japan-China Joint
Seminar on Numerical Mathematics,
University of Tsukuba,
Tsukuba, Japan,
August 5--9, 2002.
(60 minutes)
2002年学术讲座如下:
- Preconditioners for nonsymmetric block
Toeplitz-like-plus-diagonal linear systems,
SCCM, Department of Computer Science,
Stanford University,
Stanford, U.S.A.,
March 13, 2002.
(45 minutes)
- Preconditioners for nonsymmetric block
Toeplitz-like-plus-diagonal linear systems,
Department of Computer Science,
University of Kentucky,
Lexington, U.S.A.,
May 6, 2002.
(45 minutes)