楊慶之

南開大學數學科學學院科學與工程計算系，教授，博士生導師，系主任。

研究方向：最優化方法，數值多重線性代數。具體地，主要研究來自經濟、金融、交通、通訊等工程實際部門的優化問題及其他相關問題的理論和算法。

主持國家自然科學基金一項，教育部留學回國人員啓動基金一項；參加教育部重大項目一項。

《高校計算數學學報》編委，中國計算數學會常務理事，天津市計算數學會理事長，中國運籌學會數學規劃分會常務理事，天津工業與應用數學會理事，美國Math. Review評論員。

1993年9月— 1994年6月，北京大學數學系訪問學者；

2005年9月— 2006年9月，美國Minnesota 大學訪問學者。

1. Yuning Yang and Qingzhi Yang, Some modified relaxed alternating projection methods for solving the two-sets convex feasibility problem, Optimization, published online, (Jan.,2012); (SCI)

2. Yuning Yang and Qingzhi Yang, On solving biquadratic optimization via semidefinite relaxation , Computational Optimization and Applications, 53(2012); (SCI)

3. Qingzhi Yang and Yuning Yang, Further results for Perron-Frobenius theorem for nonnegative tensors II, SIAM J. Matrix Anal. and Appl, 32(4)(2011)； (SCI)

4. Jinling Zhao and Qingzhi Yang, Self-adaptive projection methods for the multiple-sets split feasibility problem, Inverse Problems, 27(2011); (SCI)

5. Yuning Yang and Qingzhi Yang, Singular values of nonnegative rectangular tensors, Frontiers Math. China, 6(2011); (SCI)

6. Zhongwen Wang, Qingzhi Yang and Yuning Yang, The relaxed inexact projection methods for the split feasibility problem, Applied Math. and Computation, 217(2011); (SCI)

7.Yuning Yang and Qingzhi Yang, Further results for Perron-Frobenius theorem for nonnegative tensors, SIAM J. Matrix Anal. and Appl, 31(5)(2010)； （SCI）

8.Jinling Zhao, Qingzhi Yang and Hongxiu Gao, A note on Solodov and Tseng’s methods for maximal monotone mappings, Journal of Computational and Applied Mathematics, 234(5)(2010); (SCI)

9. Qinggang Wang, Jinling Zhao and Qingzhi Yang, Some non-interior path-following methods based on a scaled central path for linear complementarity problems, Computational Optimization and Applications, 46（2010）;(SCI)

10. Jinling Zhao and Qingzhi Yang, Weak co-coercivity and its applications in several algorithms for solving variational inequalities, Applied Mathematics and computation, 201(2008); (SCI)

11. Qingzhi Yang and Jinling Zhao，Some remarks on convex feasibility problem and best approximation problems， Numerical Mathematics: Theory, Method and Applications, 1(2008); (SCIE)

12. Jinling Zhao and Qingzhi Yang: A note on Krasnoselski-Mann theorem and its generalizations, Inverse Problems, 23（2007）;（SCI）

13. Qingzhi Yang: On the generalized system for relaxed cocoercive variational inequalities and projection methods, Journal of Optimization Theory and Applications, 130（2006）; (SCI)

14. Qingzhi Yang and Jinling Zhao: Generalized KM theorems and their applications, Inverse Problems, 22 (2006); (SCI)

15. 楊慶之，趙金玲：分裂可行問題的投影算法，計算數學，28（2006）;

16. Qingzhi Yang: On the variable-step relaxed projection algorithm for variational inequalities, Journal of Mathematical Analysis and Applications, 302 (2005); (SCI)

17. Qingzhi Yang: A new proof of strong duality theorem for semidefinite programming, Journal of Mathematical Analysis and Applications, 303 (2005); (SCI)

18. Jinling Zhao and Qingzhi Yang: Several solution methods for the splitting feasibility problem, Inverse Problems, 21 (2005); (SCI)

19. Qingzhi Yang: The revisit of a projection algorithm for variational inqualities, Journal of Industrial and Management Optimization, 1(2005); (SCI)

20. Qingzhi Yang: The relaxed CQ algorithm solving the splitting feasibility problem, Inverse Problems, 20 (2004); (SCI)

21. Qingzhi Yang and Hong Yu: Discretization method for semidefinite programming, Computers and Mathematics with Applications, 48 (20)

^[1]