I am currently an associate professor (tenure-track) at the Institute for Advanced Study in Mathematics of Harbin Institute of Technology. I obtained my Ph.D. degree at Université Paris-Saclay under the supervision of Nicolas Burq and Pierre Lissy.

Interests
  • Dispersive equations
  • Microlocal analysis and semiclassical analysis
  • Controllability and Stabilization of dispersive equations and coupled systems
  • Unique continuation
Education

  • PhD in Fundamental Mathematics, 2021

    Université Paris-Saclay

  • Master in Mathematics and Applications, 2017

    Université Paris-Saclay

  • BSc in Pure and Applied Mathematics, 2014

    Nankai University

Publications & Preprints

Controllability of a coupled wave system with a single control and different speeds
We consider an exact controllability problem in a smooth bounded domain, for a coupled wave system, with different speeds and a single …
Pierre Lissy, Jingrui NIU
Preprint Cite DOI
Symmetry for the wave equation on torus: sharp unique continuation and observability conditions for spacetime regions
In this work, we discover a new symmetry structure for the 1D wave equations associated with spacetime observable regions: observable …
Jingrui NIU, Ming Wang, Shengquan Xiang
Preprint
The periodic KdV with control on space-time measurable sets
In this paper, we establish the local exact controllability of the KdV equation on torus around equilibrium states, where both the …
Jingrui NIU, Ming Wang, Shengquan Xiang
Preprint
See all publications

Talks

  • Laboratoire Jacques-Louis Lions, Paris, 16 September 2025
    Brèves de CAGE: Geometric condition for the observability of the Schrödinger equations with magnetic potential on two-dimensional tori, Slides
  • Beijing Institute of Technology, Beijing, 28 April 2025
    Online talk: On the small-time controllability of KdV equations, Slides
  • Central South University, Changsha, 19 March 2025
    Online talk: On the small-time controllability of KdV equations.
  • Northwest University, Xi’an, 30 December 2024
    Invited talk: Control of wave equations and coupled wave systems.
  • Laboratoire de Mathématiques de Besançon, 19 September 2024
    Séminaire EDP: Quantitative control of KdV equations.
  • Peking University, 30 August 2024
    PDE workshop: Local controllability of nonlinear Schrödinger equations.
  • Nanjing University, 2 August 2024
    Invited talk: Local controllability of nonlinear Schrödinger equations. Slides
  • Karlstad, 12 June 2024
    Equadiff 2024 Minisymposium MS21 “Nonlinear waves in dispersive equations": Quantitative controllability and stability for KdV equations.
  • Inria Sophia Antipolis, 19 October 2023
    Séminaire McTAO: Local controllability of nonlinear Schrödinger equations on tori, Slides
  • Tokyo, 22 August 2023
    ICIAM2023 Minisymposium“Control and stabilization of PDEs: recent advances and applications”: The controllability of a special class of coupled wave systems, Slides
  • Beijing Institut of Technology, 19 August 2023
    Invited talk: Controllability of nonlinear Schrödinger equations on tori.
  • La Thuile, 25 February 2022
    Workshop “Nonlinear Waves and Hamiltonian PDEs”: The controllability of a special class of coupled wave systems, Slides
  • Fudan University, 21 August 2019
    Invited talk: Microlocal methods on the controllability of wave equations.
  • Nanjing University, 9 August 2019
    Invited talk: Simultaneous Control of Wave Systems.

Teaching

Université Paris-Dauphine

-TD de Géométrie et équations différentielles, Master 1 Mathématiques approfondies, 2020-2021.

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