Xin Zhang

Xin Zhang

张鑫

Institution

School of Mathematical Sciences, Tongji University

E-mail

xinzhang2020 [at] tongji.edu.cn

Office

Ningjing Building 203, Siping Road 1239, Shanghai 200092, China

About

I am currently a tenure-track Associate Professor at School of Mathematical Sciences, Tongji University, Shanghai. Before joining Tongji, I was a postdoctoral researcher in Research Institute for Science and Engineering (理工学術院総合研究所), Waseda University (早稲田大学), working under Prof. Shibata Yoshihiro (柴田 良弘). I obtained my PhD in mathematics in September 2017 from Université Paris-Est Créteil Val-de-Marne, under the supervision of Prof. Danchin Raphaël.

Research

Nonlinear partial differential equations in fluid dynamics, free boundary value problems.

My research field is the mathematical analysis of nonlinear partial differential equations arising in fluid dynamics. In particular, I mainly study the sharp interface model associated to the Navier-Stokes problem, which describes the motion of incompressible or compressible viscous flows with free surface, or two-phase viscous flows. The methods I use are primarily harmonic analysis and functional analysis, and I am interested in well-posedness or ill-posedness theory in critical spaces, decay estimates, and singular limits.

Papers

Preprints

Published Papers

  1. Tu Miao; Zhang, Xin · J. Differential Equations 453 (2026), 113837
  2. Tan, Jin; Tsurumi Hiroyuki; Zhang, Xin · Z. Angew. Math. Phys. 76 (2025), no. 4, Paper No. 139
  3. Saito Hirokazu; Xu Jiang; Zhang, Xin; Zhou Wendu · J. Math. Fluid Mech. 27 (2025), no. 1, Paper No. 9
  4. Shibata, Yoshihiro; Zhang, Xin · Nonlinearity 36 (2023), no. 7, 3710–3733
  5. Shibata, Yoshihiro; Zhang, Xin · J. Differential Equations 325 (2022), 150–205
  6. Saito, Hirokazu; Zhang, Xin · Discrete Contin. Dyn. Syst. 41 (2021), no. 10, 4609–4643
  7. Saito, Hirokazu; Shibata, Yoshihiro; Zhang, Xin · SIAM J. Math. Anal. 52 (2020), no. 4, 3397–3443
  8. Zhang, Xin · J. Differential Equations 269 (2020), no. 9, 7059–7105
  9. Danchin, Raphaël; Zhang, Xin · J. Éc. polytech. Math. 4 (2017), 781–811
  10. Danchin, Raphaël; Zhang, Xin · Comm. Partial Differential Equations 42 (2017), no. 1, 68–99

Book Chapters

  1. Shibata, Yoshihiro; Zhang, Xin · Fluids under control (2023), 241–293, Birkhäuser/Springer

Talks

No current items.

Teaching

Current

Real Analysis
Fall 2026, Graduate course, 64 hours

Past Teaching at Tongji University

Theory of Functions of a Real Variable
Spring 2026, Undergraduate course, 68 hours
Selected Topics in Modern Applied Mathematics
Spring 2026, Graduate course (together with Prof. Ning Zheng), 16h / 32h
Real Analysis
Fall 2025, Graduate course, 64 hours
Modern Theory of Partial Differential Equations
Fall 2025, Undergraduate course, 48 hours
Real Analysis
Fall 2024, Graduate course, 68 hours
Modern Theory of Partial Differential Equations
Fall 2024, Undergraduate course, 51 hours
Real Analysis
Fall 2023, Graduate course, 51 hours
Theory of Functions of a Real Variable
Spring 2023, Undergraduate course, 68 hours
Modern Partial Differential Equations
Spring 2023, Graduate course (together with Prof. Lei Yu), 27h / 51h
Real and Complex Analysis
Fall 2022, Graduate course, 51 hours
Advanced Mathematics (A) II
Spring 2022, Calculus course for engineering students, 102 hours
Advanced Mathematics (A) I
Fall 2021, Calculus course for engineering students, 102 hours
Probability Theory and Statistics
Fall 2020, Undergraduate course for engineering students, 102 hours

Past Teaching at Waseda University

Calculus (A)
Fall quarter 2019, International course in English, 30 hours
Linear Algebra (A)
Winter quarter 2018, International course in English, 30 hours

Students

Ph.D. Students

  • Li Ming Since September 2026
  • Xiang Jiaju Since September 2026

Master Students

  • Wei Zhifan Since September 2025
  • Huang Junye Since September 2023, co-advised by Dr. Yang Xiaochuan
  • Tu Miao September 2022 – March 2025 (defended)
  • Zhou Wendu September 2022 – March 2025 (defended)

Other