Faculty

Chengyi Zhang
Research Associate
Office: N408
Phone:
Office hours
  • By appointment
Research
  • Numerical Linear Algebra
  • Matrix theory
  • Optimization theory
  • mathematical problems in control theory
  • and other branches of engineering
Recent publications
  • Cheng-yi Zhang, Chengxian Xu, Shuanghua Luo. Convergence of block iterative methods for linear systems with generalized H-matrices, Journal of Computational and Applied Mathematics, 229(1): 70-84, 2009.
  • Cheng-yi Zhang, Shuanghua Luo, Chengxian Xu. Schur complements of generally diagonally dominant matrices and criterion for irreducibility of matrices, Electronic Journal of Linear Algebra. 18: 69-87, 2009.
  • Cheng-yi Zhang, Chengxian Xu, Yao-tang Li. The Eigenvalue Distribution on Schur Complements of H-matrices, Linear Algebra Appl., 422 (2007), pp. 250-264.
  • Cheng-yi Zhang, Yao-tang Li, Feng Chen. On Schur complements of block diagonally dominant matrices, Linear Algebra Appl., 414 (2006), pp. 533-546.
  • Cheng-yi Zhang, Chengxian Xu and Yao-tang Li, Nonsingularity/singularity criteria for nonstrictly generalized diagonally dominant matrices, Proceedings of the Eighth International Conference on Matrix Theory and Its Applications in China, 2008.
  • Cheng-yi Zhang, Yao-tang Li, On Critical Conditions for Nonsingularity of Weakly Strictly Dominant Matrices, Chinese Journal of Engineering Mathematics(in China), Vol. 23 N0.3, Jun, 2006, 505-510.
  • Cheng-yi Zhang, Yao-tang Li. Diagonal Dominant Matrices and the Determing of H-matrices and M-matrices, Guangxi Sciences (in China), 12(3) (2005), pp. 1161-164.
  • Qing-bing Liu, Cheng-yi Zhang. Equal sum matrices and nonsingularity criteria for matrices, Far East Journal of Applied Mathematics, Volume 30, Number 3, March 2008, Pages 315-324.
  • Qing-bing Liu, Cheng-yi Zhang. Preconditioned SOR iterative methods for L-matrices, Far East Journal of Applied Mathematics, Volume 27, Issue 1, April 2007, Pages 145 - 152.
  • Fusheng Wang, Kecun Zhang, Cheng-yi Zhang, Youpang Han. A Feasible Descent Decompose it ion Algorithm for Large-scale Quadratic Programming, Mathematica Application (in China), 2007, 20 (2): 370-376.
  • Yao-Tang Li, Hong-Juan Wang and Cheng-yi Zhang, New Preconditioned AOR Iterative Methods for Linear Systems, Southeast Asian Bulletin of Mathematics, (2007) 31: 295-306.
  • Zhang Tai, Zhu Yan, Cheng-yi Zhang and Miao Junhong. New properties of weakly generalized diagonally dominant matrix, Journal of Hainan Normal University (Natural Science, in China), 20(2) (2007), pp. 97-100.
Education
  • Feb., 2006 - Present, Ph.D, Department of Mathematics of School of Science,
  • Xi’an Jiaotong University Xi’an, Shaanxi, P.R. China
  • Jan., 2006, Master, Department of Mathematics, Yunnan University, Kunming, Yunnan, P.R. China, (Conferred in Jan., 2006)
  • July, 2000 - September, 2003, Math. Teacher of High School, Group of Mathematics, Beizhen High School, Binzhou, Shandong, P.R. China
  • July, 2000, BSc, Department of Mathematics, Qufu Normal University, Qufu, Shandong, P.R. China.