Buyang Li

Professor and RGC Research Fellow
Department of Applied Mathematics
The Hong Kong Polytechnic University
Hung Hom, Hong Kong
Email address:

Curriculum Vitae

Research Interests     Publication     Research Group     PhD, Postdoc and Visiting Scholar Positions

  • Numerical methods and analysis for partial differential equations, including
  • Surface evolution under geometric flows, geometric evolution equations, PDEs on surfaces ← click here
  • Low-regularity approximation to nonlinear dispersive equations
  • Incompressible Navier–Stokes equations
  • Semilinear parabolic equations and phase field equation
  • Interior penalty finite element methods and perfectly matched layer (PML) for the Helmholtz equation
  • Maximal Lp-regularity of time discretization methods for parabolic equations
  • Maximum-norm stability and maximal Lp-regularity of finite element methods
  • High-order approximation of singular solutions of fractional evolution equations
  • Time-dependent Ginzburg–Landau superconductivity equations in nonsmooth domains (PDF)
  • Time-dependent Joule heating problem (for thermistors with temperature-dependent electric conductivity (PDF)
  • Editorial boards

  • Numerische Mathematik:                        2024.5 –– present

  • IMA Journal of Numerical Analysis:      2023.2 –– present

  • Mathematics of Computation:                 2022.2 –– present

  • SIAM Journal on Numerical Analysis:   2022.1 –– present

    Plenary speakers in conferences

  • Plenary Speaker, “30th Biennial Numerical Analysis Conference”, Glasgow, UK, 24–27 June 2025.

  • Plenary Speaker, “Free Boundary Problems: Theory & Applications”, João Pessoa, Brazil, 26–30 August 2024.

  • Plenary Speaker, “Frontiers in Applied Mathematics”, City University of Hong Kong, Hong Kong, 22–23 August 2024.

  •      (for the celebration of 30th anniversary of CityU)

  • Plenary Speaker, “2024 International Congress of Basic Science”, Beijing, 14­–26 July 2024.

  •      (Organizers: Caucher Birkar, Nicolai Reshitikhin, Shing-­Tung Yau)

    Awards and Fellowships

  • President's Award for Outstanding Achievement 2023 (Hong Kong PolyU).

  • RGC Research Fellow Award 2023 (Hong Kong Research Grants Council).

  • The Hong Kong Mathematical Society Young Scholars Award 2022.

  • Departmental Best Paper Award 2022 (Department of Applied Mathematics, Hong Kong PolyU).

  • Alexander von Humboldt Research Fellowship, 2015-2016.

  • Best Paper Award for Young Scholars 2013, The Chinese Society for Computational Mathematics