World's Best Scientists 2026 revealed!
Award Badge
Mathematics
China
2026

D-Index & Metrics

Mathematics

D-Index
84
Citations
25817
World Ranking
116
National Ranking
5

Research.com Recognitions

  • 2026 - Research.com Mathematics in China Leader Award
  • 2025 - Research.com Mathematics in China Leader Award
  • 2023 - Research.com Mathematics in China Leader Award

Overview

Liqun Qi is affiliated with the Hong Kong Polytechnic University in China. Their research spans multiple areas within engineering, computer science, and mathematics, with a strong emphasis on computational mathematics and its applications.

Their recent publications include work published in various academic journals, highlighting advancements in tensor analysis, quaternions, and matrix optimization. Notable papers are:

  • Generalized tensor function via the tensor singular value decomposition based on the T-product, 2020, Linear Algebra and its Applications
  • T-Jordan Canonical Form and T-Drazin Inverse Based on the T-Product, 2020, Communications on Applied Mathematics and Computation
  • Dual Quaternions and Dual Quaternion Vectors, 2022, Communications on Applied Mathematics and Computation
  • Quaternion Matrix Optimization: Motivation and Analysis, 2021, Journal of Optimization Theory and Applications
  • Singular Values of Dual Quaternion Matrices and Their Low-Rank Approximations, 2022, Numerical Functional Analysis and Optimization

Throughout their career, Liqun Qi has collaborated frequently with several researchers, including:

  • Chunfeng Cui
  • Xinzhen Zhang
  • Ziyan Luo
  • Yanwei Xu
  • Gaohang Yu

Their publication record covers contributions to a range of reputable venues, including:

  • arXiv (Cornell University)
  • Communications on Applied Mathematics and Computation
  • Communications in Mathematical Sciences
  • Journal of Scientific Computing
  • Journal of Optimization Theory and Applications

Key fields of study in their work are:

  • Engineering
  • Computer Science
  • Mathematics

Within these fields, their research dives deeply into several subfields such as:

  • Computational Mathematics
  • Computational Theory and Mathematics
  • Computer Vision and Pattern Recognition
  • Computational Mechanics
  • Control and Systems Engineering

The research topics covered by Liqun Qi include:

  • Tensor decomposition and applications
  • Matrix Theory and Algorithms
  • Sparse and Compressive Sensing Techniques
  • Advanced Neuroimaging Techniques and Applications
  • Algebraic and Geometric Analysis
  • Elasticity and Material Modeling
  • Robotic Mechanisms and Dynamics

Best Publications

  • A nonsmooth version of Newton's method

    Liqun Qi;Jie Sun

  • Eigenvalues of a real supersymmetric tensor

    Liqun Qi

  • Convergence Analysis of Some Algorithms for Solving Nonsmooth Equations

    Liqun Qi

  • Nonsmooth Equations: Motivation and Algorithms

    Jong-Shi Pang;Liqun Qi

  • A new look at smoothing Newton methods for nonlinear complementarity problems and box constrained variational inequalities

    Liqun Qi;Defeng Sun;Guanglu Zhou

  • A smoothing method for mathematical programs with equilibrium constraints

    Francisco Facchinei;Houyuan Jiang;Liqun Qi

  • Global and superlinear convergence of the smoothing Newton method and its application to general box constrained variational inequalities

    X. Chen;L. Qi;D. Sun

  • $M$-Tensors and Some Applications

    Liping Zhang;Liqun Qi;Guanglu Zhou

  • Finding the Largest Eigenvalue of a Nonnegative Tensor

    Michael Ng;Liqun Qi;Guanglu Zhou

  • Towards better MR characterization of neural tissues using directional diffusion kurtosis analysis.

    Edward S. Hui;Matthew M. Cheung;Liqun Qi;Ed X. Wu

  • Symmetric nonnegative tensors and copositive tensors

    Liqun Qi

  • Does diffusion kurtosis imaging lead to better neural tissue characterization? A rodent brain maturation study

    Matthew M. Cheung;Edward S. Hui;Kevin C. Chan;Joseph A. Helpern

  • Smoothing Methods and Semismooth Methods for Nondifferentiable Operator Equations

    Xiaojun Chen;Zuhair Nashed;Liqun Qi

  • Tensor Analysis: Spectral Theory and Special Tensors

    Liqun Qi;Ziyan Luo

  • M-tensors and nonsingular M-tensors

    Weiyang Ding;Liqun Qi;Yimin Wei

  • Eigenvalues and invariants of tensors

    Liqun Qi

  • New quasi-Newton methods for unconstrained optimization problems

    Zengxin Wei;Guoyin Li;Liqun Qi

  • On the Constant Positive Linear Dependence Condition and Its Application to SQP Methods

    Liqun Qi;Zengxin Wei

  • H + -eigenvalues of Laplacian and signless Laplacian tensors

    Liqun Qi

  • A New Nonsmooth Equations Approach to Nonlinear Complementarity Problems

    Houyuan Jiang;Liqun Qi

  • Reformulation : nonsmooth, piecewise smooth, semismooth and smoothing methods

    Masao Fukushima;Liqun Qi

Frequent Co-Authors

Yimin Wei
Yimin Wei Fudan University
Zheng-Hai Huang
Zheng-Hai Huang Tianjin University
Guoyin Li
Guoyin Li University of New South Wales
Defeng Sun
Defeng Sun Hong Kong Polytechnic University
Xiaojun Chen
Xiaojun Chen Hong Kong Polytechnic University
Hong Yan
Hong Yan City University of Hong Kong
Deren Han
Deren Han Nanjing Normal University
John R. Birge
John R. Birge University of Chicago
Yinyu Ye
Yinyu Ye Stanford University
Michael K. Ng
Michael K. Ng Hong Kong Baptist University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring Mathematics in the USA opens various doors for further education and career advancement. Many graduates complement their math background with business-oriented degrees, offering versatility in the job market. For those interested in management roles, the easiest online mba programs provide an accessible route to gaining essential leadership and financial skills without compromising quality.

If you aim for executive expertise, pursuing one of the online dba programs can be a strategic next step. These Doctorate in Business Administration degrees focus on applied knowledge, ideal for mathematically trained professionals seeking high-level strategic roles.

For math graduates inclined towards finance, the best online masters in finance offer specialized training that blends quantitative skills and financial theory, paving the way for careers in investment, risk management, and financial analysis.

Time-efficient options also exist for busy individuals. The quickest online mba programs allow students to fast-track their education and quickly apply advanced business strategies, making these pathways especially appealing for professionals eager to accelerate their career growth.

Best Scientists Citing Liqun Qi

Trending Scientists

Recently Published Articles