Jiajun Tong Name in Chinese


Department of Mathematics
University of California, Los Angeles

Contact Information

UCLA Mathematics Department
Box 951555
Los Angeles, CA 90095-1555, U.S.A.

Office: MS 6224
Email: MyFirstName at math.ucla.edu

About Me

I am a Hedrick Assistant Adjunct Professor at Department of Mathematics, UCLA, under the mentorship of Prof. Inwon Kim.

Here is my CV.

Research Interests: PDEs and applied mathematics, especially evolution free boundary problems, fluid-structure interaction, liquid crystals, and complex and active fluids.

Publications & Preprints

  1. Regularity of Minimizers of a Tensor-valued Variational Obstacle Problem in Three Dimensions
    Zhiyuan Geng and Jiajun Tong, arXiv:1908.10889. Accepted by Calc. Var. Partial Differential Equations.
  2. Regularized Stokes Immersed Boundary Problems in Two Dimensions: Well-posedness, Singular Limit, and Error Estimates
    Jiajun Tong, arXiv:1904.09528. Accepted by Comm. Pure Appl. Math..
  3. Directed Migration of Microscale Swimmers by an Array of Shaped Obstacles: Modeling and Shape Optimization
    Jiajun Tong and Michael J. Shelley, SIAM J. Appl. Math. (2018), 78(5), 2370-2392.
  4. On the Viscous Camassa-Holm Equations with Fractional Diffusion
    Zaihui Gan, Fang-Hua Lin and Jiajun Tong, arXiv:1709.00774. To appear in Discrete Contin. Dyn. Syst..
  5. Solvability of the Stokes Immersed Boundary Problem in Two Dimensions
    Fang-Hua Lin and Jiajun Tong, Comm. Pure Appl. Math. (2019), 72(1), pp. 159-226.
  6. Guiding microscale swimmers using teardrop-shaped posts
    Megan S. Davies Wykes, Xiao Zhong, Jiajun Tong, Takuji Adachi, Yanpeng Liu, Leif Ristroph, Michael D. Ward, Michael J. Shelley and Jun Zhang, Soft Matter (2017), 13, pp. 4681-4688.
  7. Stability of Soft Quasicrystals in a Coupled-Mode Swift-Hohenberg Model for Three-Component Systems
    Kai Jiang, Jiajun Tong and Pingwen Zhang, Commun. Comput. Phys. (2016), 19, pp. 559-581.
  8. Stability of two-dimensional soft quasicrystals in systems with two length scales
    Kai Jiang, Jiajun Tong, Pingwen Zhang and An-Chang Shi, Phys. Rev. E (2015), 92(4), 042159.


Winter 2020: I am teaching MATH 151A Applied Numerical Methods Sections 1 & 2.

  • Office hours: 1) M 3pm-4:30pm, W 1pm-2:30pm, Th 10am-11:30am; or 2) by email appointment.

  • Matlab and other computing resources are accessible at PIC lab and at UCLA Library in CLICC or via remote access.
  • Find quick tutorials on Matlab here (by Prof. Chris Anderson at UCLA) or here (by Prof. Andrew E. Yagle).

MATH 151A/1 (CCLE logon required): MWF 8am / MS 6229.

  • Course TA: Mingtao Xia / MS 2943.
  • Discussion section: Th 8am / MS 6229.
  • TA office hours: Th 11:50am-1:50pm.

MATH 151A/2 (CCLE logon required): MWF 10am / MS 6229.

  • Course TA: Yurun Ge / MS 3903.
  • Discussion section: Tu 10am / MS 6229.
  • TA office hours: 2:30pm-4pm.

Spring 2020: I will teach MATH 136 Partial Differential Equations.

For enrollment questions, you are advised to first consult with the math department undergraduate office (MS 6356 / ugrad at math.ucla.edu). The math department does not use PTE numbers for this course.

Find my past teaching here.

What's Upcoming

  • (02/14/2020) Analysis and PDE Seminar, UCLA, Los Angeles, CA. link
  • (05/2020) Invited talk at Madison Workshop in PDE 2020, UW-Madison, Madison, WI. link

Updated in Jan. 2020.