On the global well-posedness and self-similar solutions for a nonlinear elliptic problem with a dynamic boundary condition

This paper establishes the global well-posedness and constructs self-similar solutions for a semilinear elliptic equation with a nonlinear dynamic boundary condition in the half-space by utilizing the broader framework of Morrey spaces to accommodate rough, non-decaying initial data and deriving key estimates for associated interior and boundary operators.

Lucas C. F. Ferreira, Narayan V. Machaca-León2026-03-12🔢 math

A Physics-Informed, Global-in-Time Neural Particle Method for the Spatially Homogeneous Landau Equation

This paper introduces a physics-informed neural particle method (PINN-PM) for the spatially homogeneous Landau equation that utilizes a continuous-time, mesh-free formulation to eliminate time-discretization errors, while providing rigorous Lv2L^2_v stability analysis and error bounds that demonstrate superior accuracy and macroscopic invariant preservation compared to traditional time-stepping methods.

Minseok Kim, Sung-Jun Son, Yeoneung Kim, Donghyun Lee2026-03-12🔢 math

Forcing with random variables in bounded arithmetics and set theory

This paper analyzes Boolean-valued random forcing in bounded arithmetic from a set-theoretic perspective, demonstrating that under specific saturation assumptions, the forcing algebra is isomorphic to the probability algebra on $2^{\omega_1}$ and establishing the structural relationship between the original model and its generic extensions while offering an alternative framework to axiomatic approaches.

Radek Honzik2026-03-12🔢 math

Long-time dynamics of a bulk-surface convective Cahn--Hilliard system: Pullback attractors and convergence to equilibrium

This paper investigates the long-time dynamics of a bulk-surface convective Cahn--Hilliard system by establishing instantaneous regularization, proving the existence of a minimal pullback attractor for the resulting non-autonomous system, and demonstrating convergence to a single steady state under decay assumptions on the velocity fields using the Łojasiewicz–Simon inequality.

Patrik Knopf, Andrea Poiatti, Jonas Stange, Sema Yayla2026-03-12🔢 math

Incompressible Euler Blowup at the C1,13C^{1,\frac{1}{3}} Threshold

This paper establishes the sharp finite-time Type-I blowup for the three-dimensional incompressible Euler equations in the axisymmetric no-swirl class with initial velocity in C1,αC^{1,\alpha} for every α(0,13)\alpha \in (0, \frac{1}{3}), utilizing a novel Lagrangian framework to prove that the quadratic strain term dominates the pressure Hessian uniformly below the critical regularity threshold of 13\frac{1}{3}.

Steve Shkoller2026-03-12🔢 math

Convergence Analysis of a Fully Discrete Observer For Data Assimilation of the Barotropic Euler Equations

This paper establishes the first time-uniform error estimate for a fully discrete Luenberger observer applied to the one-dimensional barotropic Euler equations using mixed finite elements and implicit Euler time integration, demonstrating convergence that depends on initial errors, discretization parameters, and measurement noise via a modified relative energy technique.

Aidan Chaumet, Jan Giesselmann2026-03-12🔢 math