Zhixiang Zhang

Bio

I am an Assistant Professor in the Department of Mathematics at University of Macau. Previously,  I was a postdoctoral researcher in the Department of Statistics and Data Science at Wharton School, University of Pennsylvania, advised by Prof. Edgar Dobriban. I finshished my Ph.D. in statistics at Nanyang Technological University in 2021, under the supervision of Prof. Guangming Pan. Before my Ph.D., I received my bachelor’s degree from the School of Mathematical Sciences at University of Science and Technology of China in 2016. 

Research interests

Random matrix theory, High-dimensional statistics, Randomized algorithms 

Working papers

Zhixiang Zhang, Yachong Yang, Weijie J. Su, and Edgar Dobriban. “Robust Inference Under Heteroskedasticity via the Hadamard Estimator.” 2025

Leda Wang, Zhixiang Zhang, and Edgar Dobriban. “Inference in Randomized Least Squares and PCA via Normality of Quadratic Forms.” 2024

Zhixiang Zhang, Sokbae Lee, and Edgar Dobriban. “A Framework for Statistical Inference via Randomized Algorithms.”  2023.

 

Publications

Bo Zhang, Zhixiang Zhang, and Guangming Pan. “Estimating the number of significant components in high-dimensional PCA.” Biometrika, 2025.

Xiaoyu Liu, Yiming Liu, Guangming Pan, Lingyue Zhang, and Zhixiang Zhang. “Asymptotic limits of spiked eigenvalues and eigenvectors of signal-plus-noise matrices with weak signals and heteroskedastic noise.” Bernoulli, 2025.

Zhixiang Zhang, Yiming Liu, and Guangming Pan. “Tracy-Widom law for the extreme eigenvalues of large signal-plus-noise matrices.”  Bernoulli, 2023.

Yiming Liu, Ying-Chang Liang, Guangming Pan, and Zhixiang Zhang. “Random or Nonrandom Signal in High-Dimensional Regimes.” IEEE Transactions on Information Theory, 2022.

Zhixiang Zhang, Shurong Zheng, Guangming Pan, and Ping-Shou Zhong. “Asymptotic independence of spiked eigenvalues and linear spectral statistics for large sample covariance matrices.” The Annals of Statistics, 2022.



Teaching

  • Topics in Probability and Statistics,  Spring 2026
  • Multivariate Data Analysis, Spring 2024-2026
  • Time Series Analysis, Autumn 2025
  • Linear Statistical Analysis, Autumn 2023-2025



Contact details

Faculty of Science and Technology 

University of Macau, Avenida da Universidade, Taipa, 

Macau, China

 

Room: E11-3078

Telephone: (853) 8822-4153 

Email: zhixzhang@um.edu.mo



Contact details