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. I am working with Prof. Inwon Kim.

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

Here is my CV.


For questions about enrollment, you are advised to first consult with the math department undergraduate office (MS 6356 / ugrad at math.ucla.edu)

Spring 2019: I am teaching MATH 151A1 Applied Numerical Methods.

MATH 151A (CCLE access required): MWF 8am / GEOLOGY 4645. Find syllabus here.
  • Office hours: 1) M 1pm-2:30pm, W 9am-10:30am; or 2) by email appointment.
  • Course TA: Siting Liu.
  • Discussion section: Th 8am / GEOLOGY 4645.
  • TA office hours: Tu 4-5pm, and Th 9-10am.

  • 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) or here (by Prof. Andrew E. Yagle).
Find my past teaching here.

Publications & Preprints

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

Upcoming Events

  • (04/27/2019) Poster presentation at Southern California Applied Mathematics Symposium, Caltech, Pasadena, CA. link
  • (05/03/2019) Applied and Computational Mathematics Seminar, UW-Madison, Madison, WI. link


  • (02/2018) Applied Mathematics Colloquium, Columbia University, New York, NY. link
  • (01/2018) Geometry & Analysis Seminar, Columbia University, New York, NY. link
  • (01/2018) Participating Analysis Seminar, UCLA, Los Angeles, CA. link
  • (11/2017) PDE Seminar, NYU-ECNU Institute of Mathematical Sciences at NYU Shanghai, Shanghai, China. link
  • (10/2017) Mathematics Department Seminar, Zhejiang University, Hangzhou, China. link
  • (10/2017) 2017 Fall Program on Analysis of PDE (Week 6), Shanghai Center for Mathematical Sciences, Fudan University, Shanghai, China. link
  • (11/2016) 69th Annual Meeting of the APS Division of Fluid Dynamics, L25.03, Portland, OR. link

Updated in Apr. 2019.