Welcome to Lexiao's Homepage!


I am a Ph.D. Student at Columbia IEOR


I am Lexiao Lai 赖乐潇, a Ph.D. student at Columbia IEOR. My research interest lies in nonconvex optimization, semi-algebraic geometry and low-rank matrix recovery. I completed my undergraduate at the University of Hong Kong, majoring in Mathematics and minoring in Finance. And I graduated with First Class Honors.

At Columbia, I am working with Prof. Cédric Josz on nonconvex optimization problems. Please refer to my CV for more details.

Research Papers

  1. Cédric Josz, Lexiao Lai, Nonsmooth rank-one matrix factorization landscape, Optimization Letters, 2021
  2. Elliot Cartee, Lexiao Lai, Qianli Song, Alexander Vladimirsky, Time-dependent surveillance-evasion games, 58th IEEE Conference on Decision and Control, 2019