Erratum and original of Port-Hamiltonian structure of interacting particle systems and its mean-field limit

This paper presents a minimal port-Hamiltonian formulation for interacting particle systems to analyze their stability and mean-field limits, while simultaneously issuing an erratum that corrects a previous claim regarding trajectory compactness by providing a counterexample for repulsive interactions and a revised proof for Hamiltonian gradient convergence.

Jannik Daun, Daniel Jannik Happ, Birgit Jacob, Claudia TotzeckTue, 10 Ma🔢 math

Splitting methods for the Gross-Pitaevskii equation on the full space and vortex nucleation

This paper establishes the convergence of Lie-Trotter and Strang splitting schemes for the Gross-Pitaevskii equation with time-dependent potentials and non-zero boundary conditions in Zhidkov spaces, while demonstrating the conservation of generalized mass, near-preservation of energy, and investigating quantum vortex nucleation in relevant experimental settings.

Quentin Chauleur (Paradyse), Gaspard Kemlin (LAMFA)Tue, 10 Ma🔢 math

Flexibility of Codimension One C1,θC^{1,\theta} Isometric Immersions

This paper improves the known threshold for the flexibility of C1,θC^{1,\theta} isometric immersions of nn-dimensional Riemannian metrics into Rn+1\mathbb{R}^{n+1} by proving that any short immersion can be approximated by such immersions for θ<1/(1+2(n1))\theta < 1/(1+2(n-1)) when n3n \geq 3, utilizing a refined convex integration scheme with enhanced iterative integration by parts.

Dominik InauenTue, 10 Ma🔢 math

Low Mach Number Limit and Convergence Rates for a Compressible Two-Fluid Model with Algebraic Pressure Closure

This paper rigorously establishes the low Mach number limit and derives explicit convergence rates for a three-dimensional viscous compressible two-fluid model with algebraic pressure closure, proving that its well-prepared strong solutions converge to the incompressible Navier–Stokes equations as the Mach number tends to zero.

Yang Li, Mária Lukáčová-Medvidová, Ewelina ZatorskaTue, 10 Ma🔢 math

Existence, Sharp Boundary Asymptotics, and Stochastic Optimal Control for Semilinear Elliptic Equations with Gradient-Dependent Terms and Singular Weights

This paper establishes the existence, uniqueness, and sharp boundary asymptotics of large solutions to semilinear elliptic equations with gradient-dependent terms and singular weights, while also proving their strict convexity and identifying them as value functions for infinite-horizon stochastic optimal control problems.

Dragos-Patru CoveiTue, 10 Ma🔢 math