What's New

20-Apr-2020

AMA and SN researchers use mathematical models to help the fight against the COVID-19 pandemic

Read Mode

20-Apr-2020

Chair Professor Defeng Sun named SIAM Fellow 2020

Read Mode

16-Mar-2020

[Cancellation] Differential Inclusions in Optimal Control of Deterministic and Stochastic Systems

Read Mode

11-Feb-2020

[Cancellation] Stochastic Trust-region Methods with Trust-region Radius Depending on Probabilistic Models

Read Mode

17-Dec-2019

[Cancellation] Due to the unforeseen condition on PolyU campus, please note that the Colloquim talk by Prof...

Read Mode

10-Dec-2019

AMA UGC Teaching and Learning PALMS Project has won 7 International Educational Awards, 10 Dec 2019

Read Mode

02-Dec-2019

[Cancellation] Due to the unforeseen condition on PolyU campus, please note that the Distinguished Lectures...

Read Mode

04-Sep-2019

Media reports on “AMA’s Active Learning Pedagogies and Mobile Applications in University STEM Education”, 4...

Read Mode

29-Aug-2019

AMA Seminar: Inverting the Markovian Projection with an Application to Local Stochastic Volatility Models

Read Mode

12-Jul-2019

Congratulations to Miss Lee Ka Yi, our Investment Science graduate, for receiving the Medal of Honour (MH) ...

Read Mode

11-Jul-2019

Congratulations to Mr. Salihu Sabiu Musa for winning the Best Research Paper Presentation Award presented b...

Read Mode

02-Jul-2019

Congratulations to the following colleagues for receiving the RGC GRF in 2019-2020: Chen XJ, He DH, James H...

Read Mode

25-May-2019

Dr. Yang Lei, AMA alumnus, won 2018-2019 Hong Kong Mathematical Society Best Thesis Award

Read Mode

25-May-2019

Dr. Wang Zhi-an received 2019 Hong Kong Mathematical Society Award for Young Scholars

Read Mode

15-May-2019

Enjoy our newsletter - AMAgazine issue 13!

Read Mode

10-Apr-2019

Prof Yang receives The Presidents award

Read Mode

27-Jan-2019

Drs. James Huang and Li Xun won 2018 Outstanding Achievement Award in Scientific Research for Institution o...

Read Mode

12-Dec-2018

Chair Professors Jian Huang and Liqun Qi recognized as Highly Cited Researchers 2018

Read Mode

08-Nov-2018

The Chinese Academy of Sciences (CAS) approved the CAS AMSS-PolyU Joint Lab of Applied Mathematics

Read Mode

26-Oct-2018

Dr. Zhou Zhi won Early Career Award 2018/19 (26 Oct 2018)

Read Mode

15-Oct-2018

Dr. He and his co-authors receives the Second Prize for the 2019 Award for Outstanding Research Articles in...

Read Mode

16-Jul-2018

Prof. Sun Defeng awarded the triennial Beale--Orchard-Hays Prize for Excellence in Computational Mathematic...

Read Mode

Academic Staff


Emeritus Professor of Applied Mathematics

Professor Qi Liqun
祁力群榮休教授

B.S., M.S., Ph.D.

TU707, Yip Kit Chuen Bldg.

2766 4591

Personal Website


Qualification
  • B.S. (Computational Mathematics) Tsinghua University 1968
  • M.S. (Computer Sciences) University of Wisconsin 1981
  • Ph.D. (Computer Sciences) University of Wisconsin 1984

 

Research Interests

Optimization and Applications

  • Generalized Newton Methods
  • Nonlinear Programming

 

Multi-linear Algebra

 

Computational Mathematics and Application

  • Numerical Multi-linear Algebra
  • Systems of Nonlinear Equations

 

Honor and Awards
  • ISI Most Highly Cited Scientist
  • The First Class Science and Technology Award of Chinese Operations Research Society in 2010
  • The President's Awards for Excellent Performance/Achievement 2003/2004, based upon Research and Scholarly Activities, The Hong Kong Polytechnic University
  • Foreign Member of the Petrovskaya Academy of Science and Arts, Russia

 

Selected Publications
  • S. Hu, L. Qi and G. Zhang, Computing the geometric measure of entanglement of multipartite pure states by means of non-negative tensors, Phys. Rev. A 93 (2016) 012304.
  • L. Qi, Hankel tensors: Associated Hankel matrices and Vandermonde decomposition, Commun. Math. Sci. 13 (2015) 113-125.
  • L. Qi, C. Xu and Y. Xu, Nonnegative tensor factorization, completely positive tensors and a hierarchically elimination algorithm, SIAM J. Matrix Anal. Appl. 35 (2014) 1227-1241.
  • G. Ni, L. Qi and M. Bai, Geometric measure of entanglement and U-eigenvalues of tensors, SIAM J. Matrix Anal. Appl 35 (2014) 73-87.
  • L. Qi, G. Yu and Y. Xu, Nonnegative diffusion orientation distribution function, J. Math. Imaging Vision 45 (2013) 103-113.
  • M. Ng, L. Qi and G. Zhou, Finding the largest eigenvalue of a non-negative tensor, SIAM J. Matrix Anal. Appl. 31 (2009) 1090-1099.
  • L. Qi, Eigenvalues of a real supersymmetric tensor, J. Symb. Comput. 40 (2005) 1302-1324.
  • L. Qi, D. Sun and G. Zhou, A new look at smoothing Newton methods for nonlinear complementarity problems and boxconstrained variational inequalities, Math. Prog. 87 (2000) 1-35.
  • L. Qi and J. Sun, A nonsmooth version of Newton’s method, Math. Prog. 58 (1993) 353-368.
  • L. Qi, Convergence analysis of some algorithms for solving nonsmooth equations, Math. Oper. Res. 18 (1993) 227-244.


Back to Top