Weiran Sun

collaborators

4 papers

math.AP2025

Uniqueness for the Homogeneous Landau-Coulomb Equation in $L^{3/2}$

Maria Pia Gualdani, Weiran Sun

We prove the uniqueness of $H$ -solutions to the homogeneous Landau-Coulomb equation satisfying $⟨ v ⟩^{k_{0}} f \in C ([0, T]; L^{3/2} (R^{3}))$ and $\langle v \rang…

math.NA2025

The spectrum of the Steklov-Helmholtz operator

Nilima Nigam, Kshitij Patil, Weiran Sun

We present a wavenumber-robust strategy for computing Steklov eigenpairs of the Helmholtz operator $- I^ - I^¼^{2}$ . As the wavenumber $I^¼ \to I^¼_{D}$ from below (where $I^¼_{D}^{2}$ is…

math.AP2025

The $M$ -Operator and Uniqueness of Nonlinear Kinetic Equations

Ricardo Alonso, Maria Pia Gualdani, Weiran Sun

We introduce an $M$ -operator approach to establish the uniqueness of continuous or bounded solutions for a broad class of Landau-type nonlinear kinetic equations. The spe…

math.AP2025

Crossover from ballistic transport to normal diffusion: a kinetic view

Zhe Xue, Weiran Sun, Zhennan Zhou +1

The crossover between dispersion patterns has been frequently observed in various systems. Inspired by the pathway-based kinetic model for E. coli chemotaxis that accounts for the…

Uniqueness for the Homogeneous Landau-Coulomb Equation in L3/2

The spectrum of the Steklov-Helmholtz operator

The M-Operator and Uniqueness of Nonlinear Kinetic Equations

Crossover from ballistic transport to normal diffusion: a kinetic view

Uniqueness for the Homogeneous Landau-Coulomb Equation in $L^{3/2}$

The $M$ -Operator and Uniqueness of Nonlinear Kinetic Equations