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We prove three related quantitative results for the relative isoperimetric problem outside a convex body $\Omega$ in the plane: (1) {\L}ojasiewicz estimates and quantitative rigidity for critical points, (2) rates of convergence for the…

偏微分方程分析 · 数学 2025-12-02 Elena Mäder-Baumdicker , Robin Neumayer , Jiewon Park , Melanie Rupflin

We analyze the gradient flow of a potential energy in the space of probability measures when we substitute the optimal transport geometry with a geometry based on Sinkhorn divergences, a debiased version of entropic optimal transport. This…

偏微分方程分析 · 数学 2025-11-19 Mathis Hardion , Hugo Lavenant

In this paper we establish a rigorous gradient flow structure for one-dimensional Kimura equations with respect to some Wasserstein-Shahshahani optimal transport geometry. This is achieved by first conditioning the underlying stochastic…

偏微分方程分析 · 数学 2022-10-03 Jean-Baptiste Casteras , Léonard Monsaingeon

Motivated by recent developments in the fields of large deviations for interacting particle system and mean field control, we establish a comparison principle for the Hamilton--Jacobi equation corresponding to linearly controlled gradient…

偏微分方程分析 · 数学 2024-01-08 Giovanni Conforti , Richard Kraaij , Daniela Tonon

We study the convergences of three projected Sobolev gradient flows to the ground state of the Gross-Pitaevskii eigenvalue problem. They are constructed as the gradient flows of the Gross-Pitaevskii energy functional with respect to the…

数值分析 · 数学 2023-11-30 Ziang Chen , Jianfeng Lu , Yulong Lu , Xiangxiong Zhang

Non-linear versions of log-Sobolev inequalities, that link a free energy to its dissipation along the corresponding Wasserstein gradient flow (i.e. corresponds to Polyak-Lojasiewicz inequalities in this context), are known to provide global…

偏微分方程分析 · 数学 2025-06-30 Pierre Monmarché , Julien Reygner

This is an expository paper on the theory of gradient flows, and in particular of those PDEs which can be interpreted as gradient flows for the Wasserstein metric on the space of probability measures (a distance induced by optimal…

偏微分方程分析 · 数学 2016-09-14 Filippo Santambrogio

R. Thom's gradient conjecture states that if a gradient flow of an analytic function converges to a limit, it does so along a unique limiting direction. In this paper, we extend and settle this conjecture in the context of infinite…

偏微分方程分析 · 数学 2024-07-17 Beomjun Choi , Pei-Ken Hung

We consider the initial-boundary value problem of a thermodynamically consistent diffuse interface model for incompressible two-phase flows with unmatched densities in a bounded domain $\Omega\subset\mathbb{R}^3$. Our first aim is to study…

偏微分方程分析 · 数学 2026-03-30 Harald Garcke , Maoyin Lv , Hao Wu

We propose a new normalized Sobolev gradient flow for the Gross-Pitaevskii eigenvalue problem based on an energy inner product that depends on time through the density of the flow itself. The gradient flow is well-defined and converges to…

数值分析 · 数学 2020-04-03 Patrick Henning , Daniel Peterseim

We prove full convergence of gradient-flows of the arc-length restricted tangent point energies in the Hilbert-case towards critical points. This is done through a {\L}ojasiewicz-Simon gradient inequality for these energies. In order to do…

经典分析与常微分方程 · 数学 2025-11-11 Elias Döhrer , Nicolas Freches

We study nonlinear degenerate parabolic equations of Fokker-Planck type which can be viewed as gradient flows with respect to the recently introduced spherical Hellinger-Kantorovich distance. The driving entropy is not assumed to be…

泛函分析 · 数学 2019-04-03 Stanislav Kondratyev , Dmitry Vorotnikov

We study the equation of one-dimensional quasistatic nonlinear viscoelasticity with Dirichlet boundary conditions, in the particular case that the underlying dissipation geometry (provided by the viscosity) is comparable to the Bhattacharya…

偏微分方程分析 · 数学 2026-05-12 Alexander Mielke , Billy Sumners

We study the convergence to equilibrium in high dimensions, focusing on explicit bounds on mixing times and the emergence of the cutoff phenomenon for Dyson-Laguerre processes. These are interacting particle systems with non-constant…

概率论 · 数学 2025-09-25 Samuel Chan-Ashing

We propose a general method to identify nonlinear Fokker--Planck--Kolmogorov equations (FPK equations) as gradient flows on the space of probability measures on $\mathbb{R}^d$ with a natural differential geometry. Our notion of gradient…

偏微分方程分析 · 数学 2024-11-11 Marco Rehmeier , Michael Röckner

We study evolution equations on metric graphs with reservoirs, that is graphs where a one-dimensional interval is associated to each edge and, in addition, the vertices are able to store and exchange mass with these intervals. Focusing on…

偏微分方程分析 · 数学 2024-12-24 Georg Heinze , Jan-Frederik Pietschmann , André Schlichting

We revisit entropy methods to prove new sharp trace logarithmic Sobolev and sharp Gagliardo-Nirenberg-Sobolev inequalities on the half space, with a focus on the entropy inequality itself and not the actual flow, allowing for somewhat…

偏微分方程分析 · 数学 2021-12-28 Simon Zugmeyer

This work is concerned with the gradient flow of absolutely $p$-homogeneous convex functionals on a Hilbert space, which we show to exhibit finite ($p<2$) or infinite extinction time ($p \geq 2$). We give upper bounds for the finite…

偏微分方程分析 · 数学 2020-12-25 Leon Bungert , Martin Burger

We consider an infinite lattice system of interacting spins living on a smooth compact manifold, with short- but not necessarily finite-range pairwise interactions. We construct the gradient flow of the infinite-volume free energy on the…

概率论 · 数学 2025-02-19 Ronan Herry , Thomas Leblé

Gradient schemes is a framework that enables the unified convergence analysis of many numerical methods for elliptic and parabolic partial differential equations: conforming and non-conforming Finite Element, Mixed Finite Element and Finite…

数值分析 · 数学 2020-03-23 Jerome Droniou , Robert Eymard