About Me

I am currently a Lecturer in the Department of Mathematics at Southwest Minzu University. From July 2023 to August 2024, I worked as a postdoctoral fellow with Professor Ting Kei Pong at the Hong Kong Polytechnic University. In 2021, I obtained my Ph.D. degree in Pure Mathematics at the Sichuan Normal University, under the supervision of Professor Fuquan Xia. I completed my M.S. degree in 2018 in Operational Research and Cybernetics at the China West Normal University, under the supervision of Professor Minglu Ye. Prior to that, I obtained my B.A. degree in 2015 in Mathematics and Applied Mathematics at Sichuan Minzu College.

My research interests lie in the nonlinear optimization and its applications, and first-order methods for large-scale convex or nonconvex problems.

Selected Publications

• Kurdyka-Łojasiewicz exponent via Hadamard parametrization
  Wenqing Ouyang, Yuncheng Liu, Ting Kei Pong and Hao Wang
  SIAM Journal on Optimization, 35(1), 62-91, 2025.

• Proximal variable smoothing method for three-composite nonconvex nonsmooth minimization with a linear operator
  Yuncheng Liu and Fuquan Xia
  Numerical Algorithms, 96, 237-266, 2024.

• Variable smoothing incremental aggregated gradient method for nonsmooth nonconvex regularized optimization
  Yuncheng Liu and Fuquan Xia
  Optimization Letters, 15, 2147–2164, 2022.

• Linear convergence of proximal incremental aggregated gradient method for nonconvex nonsmooth minimization problems
  Yuncheng Liu and Fuquan Xia
  Applicable Analysis, 101(9), 3445-3464, 2021.

• Convergence study on the logarithmic-quadratic proximal regularization of strictly contractive Peaceman Rachford splitting with larger step-size
  Yuncheng Liu, Ke Guo and Meijia Yang
  International Journal of Computer Mathematics, 97(8), 1744-1766, 2020.

Visits

• 2025.07 - 2025.08, Department of Applied Mathematics, The Hong Kong Polytechnic University, hosted by Professor Ting Kei Pong.