List of Publications by Topics
Singularities and Illposedness for hydrodynamic PDE
- Stationary self-similar profiles for the two-dimensional inviscid Boussinesq equations (with Ken Abe and Dan Ginsberg)
- Strong ill-posedness of SQG in critical Sobolev spaces (with Junha Kim)
- A simple proof of ill-posedness for incompressible Euler equations in critical Sobolev spaces (with Junha Kim)
- The incompressible Euler equations under octahedral symmetry: singularity formation in a fundamental domain (with Tarek Elgindi)
- Loss of regularity for the 2D Euler equations
- Finite-time Singularity Formation for Strong Solutions to the Boussinesq System (with Tarek Elgindi)
- On the Effects of Advection and Vortex Stretching (with Tarek Elgindi)
- Finite-time Singularity Formation for Strong Solutions to the axi-symmetric 3D Euler Equations (with Tarek Elgindi)
- Ill-posedness for the incompressible Euler equations in critical Sobolev spaces (with Tarek Elgindi)
- Discrete Schrödinger equation and ill-posedness for the Euler equation (with Benoit Pausader)
Stability issues for hydrodynamic PDE
- Stability of vortex quadrupoles with odd-odd symmetry (with Kyudong Choi and Yao Yao)
- On the optimal rate of vortex stretching for axisymmetric Euler flows without swirl (with Deokwoo Lim)
- On existence of Sadovskii vortex patch: A touching pair of symmetric
counter-rotating uniform vortex (with Kyudong Choi and Young-Jin Sim)
- Twisting in Hamiltonian Flows and Perfect Fluids (with Tarek Elgindi and Theodore Drivas)
- On vortex stretching for anti-parallel axisymmetric flows (with Kyudong Choi)
- Filamentation near Hill's vortex (with Kyudong Choi)
- Stability of monotone vorticities in the half cylinder and infinite perimeter growth for patches (with Kyudong Choi and Deokwoo Lim)
- Stability and instability of Kelvin waves (with Kyudong Choi)
- Infinite growth in vorticity gradient of compactly supported planar vorticity near Lamb dipole (with Kyudong Choi)
- Growth of perimeter for vortex patches (with Kyudong Choi)
- On Singular Vortex Patches, II: Long-time dynamics (with Tarek Elgindi)
- Weakened vortex stretching effect in three scale hierarchy for the 3D Euler equations (with Jungkyoung Na and Tsuyoshi Yoneda)
Wellposedness for hydrodynamic PDE
- Wellposedness of inviscid SQG in the half-plane (with Junha Kim and Hideyuki Miura)
- On global regularity of some bi-rotational Euler flows (with Kyudong Choi and Deokwoo Lim)
- On well-posedness of α-SQG equations in the half-plane (with Junha Kim and Yao Yao)
- Logarithmic spirals in 2d perfect fluids (with Ayman Said)
- Global regularity for some axisymmetric Euler flows in Rd (with Kyudong Choi and Deokwoo Lim)
- Axi-symmetric solutions active vector models generalizing 3D Euler and electron–MHD equations (with Dongho Chae and Kyudong Choi)
- On evolution of corner-like gSQG patches (with Junekey Jeon)
- On Singular Vortex Patches, I: Well-posedness Issues (with Tarek Elgindi)
- Active vector models generalizing 3D Euler and electron–MHD systems (with Dongho Chae)
- Preservation of log-Hölder coefficients of the vorticity in the transport equation (with Dongho Chae)
- Symmetries and Critical Phenomena in Fluids (with Tarek Elgindi)
MHD models and Quasilinear dispersive systems
- MHS equilibria in the non-resistive limit to the randomly forced resistive magnetic relaxation equations (with Ken Abe, Federico Pasqualotto, and Naoki Sato)
- On illposedness of the Hall and electron magnetohydrodynamic equations
without resistivity on the whole space (with Sung-Jin Oh)
- Wellposedness of the electron MHD without resistivity for large perturbations of the uniform magnetic field (with Sung-Jin Oh)
- Illposedness for dispersive equations: Degenerate dispersion and Takeuchi--Mizohata condition (with Sung-Jin Oh)
- Illposedness via degenerate dispersion for generalized surface quasi-geostrophic equations with singular velocities
(with Dongho Chae and Sung-Jin Oh)
- Well-posedness for Ohkitani model and long-time existence for surface quasi-geostrophic equations (with Dongho Chae, Jungkyoung Na and Sung-Jin Oh)
- On the Cauchy problem for the Hall and electron magnetohydrodynamic equations without resistivity I: illposedness near degenerate stationary solutions (with Sung-Jin Oh)
Inviscid limit
- Time periodic solutions to a heat equation with linear forcing and boundary conditions (with Sun-Chul Kim)
- Anomalous Dissipation in Passive Scalar Transport (with Tarek Elgindi, Theodore Drivas, and Gautam Iyer)
- Quasi-streamwise vortices and enhanced dissipation for the incompressible 3D Navier–Stokes equations (with Tsuyoshi Yoneda)
- Vortex stretching and a modified zeroth law for the incompressible 3D Navier–Stokes equations (with Tsuyoshi Yoneda)
- On stationary solutions and inviscid limits for generalized Constantin–Lax–Majda equation with O(1) forcing (with Sun-Chul Kim)
- On the stationary solutions and inviscid limit for the generalized Proudman–Johnson equation with O(1)–forcing (with Sun-Chul Kim)
- Enstrophy dissipation and vortex thinning for the incompressible 2D Navier–Stokes equations (with Tsuyoshi Yoneda)
Kinetic and related PDE
- Well-posedness and singularity formation for Vlasov–Riesz system (with Young-Pil Choi)
- Global weak solutions to Vlasov–Manev–Fokker–Planck system (with Young-Pil Choi)
- On well-posedness and singularity formation for the Euler–Riesz system (with Young-Pil Choi)
- Relaxation to fractional porous medium equation from Euler–Riesz system (with Young-Pil Choi)
- Classical solutions to the fractional porous medium flow (with Young-Pil Choi)
- Global Cauchy problem for the Vlasov--Riesz--Fokker--Planck system near the global Maxwellian (with Young-Pil Choi and Kyungkeun Kang)
Dyadic models in Fluid dynamics
- Self-similar solutions for dyadic models of the Euler equations
- A Blow-Up Result for Dyadic Models of the Euler Equations (with Dong Li)
Chemotaxis and mathematical biology
- Well-posedness and singularity formation for inviscid Keller–Segel–fluid system of consumption type (with Kyungkeun Kang)
Random matrix theory
- A Limit theorem for stochastically decaying partitions at the edge (with Sasha Sodin)
Dynamical Systems
- Outer Billiards with Contraction: Regular Polygons
- Outer Billiards with Contraction: Attracting Cantor Sets
Combinatorics
- Gale–Robinson sequences and brane tilings (with Gregg Musiker and Sicong Zhang)