cv pdf file (last updated on Aug. 2023), a slide

   (upcoming) Organizing events

• Mar. 13-15 (2024) Analysis of PDEs in Fluid (Quasi-linear PDEs in fluids III), Osaka, Japan, link
  (also see the webpages for the previous events : 1st in 2021, 2nd in 2022)

• July 24-27 (2023) Recent Progress on Mathematical Fluid Dynamics, Jeju, link

• Apr. 20~21 (2023) 2023 Spring SNU Fluid PDE Workshop, Seoul, link

• Apr. 17~18 (2023) Spring UNIST PDE Group Workshop with A. Kiselev, link

• Jan. 30~Feb. 2 (2023) 2023 Winter International Workshop on Mathematical Analysis of Fluids, Busan, link

    (upcoming) Invited talks

• Dec. 16-20 (2024) Singularities in Fluids and General Relativity, NUS, Singapore, link

• Aug. 5-9 (2024) Patterns  in solutions  to the incompressible  Euler equations, Bedlewo, Poland, link

• Apr. 19-20 (2024) Analysis section, KMS Spring meeting, link

• Mar. 27 (2024) Nonlinear wave workshop, UNIST, link

• Feb. 21 (2024) Analysis seminar, Univ. of Texas at Austin, U.S., link

• Feb. 20 (2024) Applied math and Analysis seminar, Duke Univ., U.S., link

• Jan. 15-19 (2024) Fluids in Seoul 2024, Seoul, Korea, link

• Dec. 11-15 (2023) Recent advances in fluid dynamics: singularity, regularity and mixing, Kunshan, China

• Sep. 22 (2023) Yeungnam Workshop on Partial Differential Equations, Kyungsan, Korea

• July 5-7 (2023) RIMS Workshop  Mathematical Analysis in Fluid and Gas Dynamics, Kyoto, Japan, link

• Mar. 29-30 (2023) Kyoto-CAU Joint Meeting on Nonlinear PDEs, Kanazawa, Japan, link

• Feb. 26~Mar. 1 (2023) Nonlinear PDE Conference on the occasion of Professor Dongho Chae's 65th birthday, Jeju, link

Employment

•  Assistant Professor, Associate Professor, tenured Associate Professor, Department of Mathematical Sciences, UNIST (2015.06 ~ current)

•  Van Vleck Visiting Assistant Professor, Department of Mathematics, Univ. of Wisconsin-Madison (2012.09~2015.05)
Mentor: A. Kiselev and S. Denisov

Education

•  Ph.D., Univ. of Texas at Austin (2012.08) Advisor: A. Vasseur

•  B.S., Korea Univ. (2006.08)

(former and current) Students

•  Taehoon Ha(MS, 2023.08) now at industry

•  Deokwoo Lim(Ph.D, 2023.08) now at Seoul National Univesity as a post-doc

•  Youngjin Sim(MS-Ph.D program since 2021.09)

   Awards/Funds

• Research paper award, Korean Mathematical Society, 2024 Spring

• National Research Foundation of Korea, Mid-career, 2023-2028 (RS-2023-00274499)

• Outstanding Faculty Awards 2022, in research, UNIST 2023.04.11

• BRL(Basic Research Lab) fund (PI) 2022~2025  (NRF-2022R1A4A1032094)

• The nation’s top 50 awards for excellence from ‘2020 Academic and Research Support Program' of the Ministry of Education of Republic of Korea (2021.12.16)

• KIAS Associate Member 2019–2024

• National Research Foundation of Korea (NRF-2018R1D1A1B07043065) 2018–2023

• POSCO Science Fellowship of TJ Park Foundation 2017–2018

• National Research Foundation of Korea (NRF-2015R1D1A1A01058614) 2015–2018

• ICM 2014 Travel Grants from AMS-NSF

• AMS-Simons Travel Grants 2013–2015

• Frank Gerth III Dissertation Award 2012, Depart. of Math., University of Texas at Austin

• Frank Gerth III Graduate Excellence Award 2008, Depart. of Math., University of Texas at Austin

All the papers below are available either on arxiv.org or upon a request by email <kchoi "at" unist.ac.kr>.

    Preprints

1. (with I. Jeong and Y. Sim) On existence of Sadovskii vortex patch: A touching pair of symmetric counter-rotating uniform vortex, arxiv 

2. (with I. Jeong and D. Lim) On global regularity of some bi-rotational Euler flows in R^4, arxiv 

3. (with I. Jeong) On the winding number for particle trajectories in a disk-like vortex patch of the Euler equations, arxiv
   
   

    Publications

1. (with I. Jeong) On vortex stretching for anti-parallel axisymmetric flows, Amer. J. Math., to appear, arxiv

2. (with D. Chae and I. Jeong) Axi-symmetric solutions for active vector models generalizing 3D Euler and electron–MHD equations, Nonlinear Anal. Real World Appl., 74 (2023), 103953 journal,  arxiv

3. (with I. Jeong and D. Lim) Global regularity for some axisymmetric Euler flows in R^d, Proc. Amer. Math. Soc, to appear, arxiv

4. (with I. Jeong) Filamentation near Hill's vortex, Comm. PDE, 48, 1 (2023) journal, arxiv

5. (with I. Jeong and D. Lim) Stability of monotone, non-negative, and compactly supported vorticities in the half cylinder and infinite perimeter growth for patches, J. Nonlinear Sci., 32, 97 (2022) journal, arxiv

6. (with I. Jeong) Stability and instability of Kelvin waves, Calc. Var. 61, 221 (2022)  journal, arxiv

7. (with I. Jeong) Infinite growth in vorticity gradient of compactly supported planar vorticity near Lamb dipole, Nonlinear Anal. Real World Appl., 65 (2022), 103470 journal, arxiv

8. (with D. Lim) Stability of radially symmetric, monotone vorticities of 2D Euler equations,  Calc. Var. 61, 120 (2022) journal, arxiv

9. Stability of Hill's spherical vortex, Comm. Pure Appl. Math., 77:52-138 (2024), journal,  arxiv

10. (with I. Jeong) Growth of perimeter for vortex patches in a bulk, Applied Math. Letters, (113) 2021, 106857 journal, arxiv

11. (with K. Abe) Stability of Lamb dipoles,  Arch. Rational Mech. Anal., 244, 877–917 (2022) journal, arxiv

12. (with M. Kang and A. Vasseur) Global well-posedness of large perturbations of traveling waves in a hyperbolic-parabolic system arising from a chemotaxis model, J. Math. Pures Appl., 142 (2020), 266-297 journal, arxiv

13. (with M. Kang, Y. Kwon and A. Vasseur) Contraction for large perturbations of traveling waves in a hyperbolic-parabolic system arising from a chemotaxis model, Math. Models Methods Appl., 30 (2020), 387-437 journal, arxiv

14. (with M. Chae) Nonlinear stability of planar traveling waves in a chemotaxis model of tumor angiogenesis with chemical diffusion, J. Differential Equations, 268 (2020), 3449-3496 journal, arxiv

15. On the estimate of distance traveled by a particle in a disk-like vortex patch, Applied Math. Letters, 97 (2019), 67–72 journal, arxiv

16. (with S. Denisov) On the Growth of the Support of Positive Vorticity for 2D Euler Equation in an Infinite Cylinder, Commun. Math. Phys., 367 (2019), 1077-1093 journal, arxiv

17. (with M. Chae, K. Kang, and J. Lee) Stability of Planar Traveling Waves in a Keller-Segel Equation on an Infinite Strip Domain, J. Differential Equations, 265 (2018), 237-279 journal, arxiv

18. (with T. Hou, A. Kiselev, G. Luo, V. Sverak, and Y. Yao) On the Finite-Time Blowup of a 1D Model for the 3D Axisymmetric Euler Equations, Comm. Pure Appl. Math., 70 (2017), 2218–2243 journal, arxiv

19. (with A. Kiselev and Y. Yao) Finite time blow up for a 1D model of 2D Boussinesq system, 2013, Commun. Math. Phys., 334 (2015), 1667 - 1679 journal, arxiv

20. (with A. Vasseur) Short-time Stability of Scalar Viscous Shocks in the Inviscid Limit by the Relative Entropy Method, SIAM J. Math. Anal. 47 (2015), 1405 - 1418 journal, arxiv

21. Persistence of Holder Continuity for Non-local Integro-differential Equations, Discrete Contin. Dyn. Syst. - Series A, 33 (2013), 1741 - 1771 journal, early ver. on arxiv, revised one

22. (with A. Vasseur) Estimates on Fractional Higher Derivatives of Weak solutions for the Navier-Stokes Equations, Ann. Inst. Henri Poincare Anal. Non Lineaire, 31 (2014), 899 - 945 journal, arxiv

    Published articles in non refereed Journal

1. On stability of Hill’s vortex and its applications, Proceeding of Mathematical Analysis in Fluid and Gas Dynamics in RIMS Kokyuroku,  preprint