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We examine a steepest energy descent flow with obstacle constraint in higher order energy frameworks where the maximum principle is not available. We construct the flow under general assumptions using De Giorgi's minimizing movement scheme.…

偏微分方程分析 · 数学 2019-03-04 Marius Müller

We prove that certain nonlocal functionals defined on partitions made of measurable sets Gamma-converge to a local functional modeled on the perimeter in the sense of De Giorgi. Those nonlocal functionals involve generalized surface tension…

偏微分方程分析 · 数学 2025-06-26 Thomas Gabard , Vincent Millot

We evaluate the entanglement entropy of a non-minimal coupling Einstein-scalar theory with two approaches in classical Euclidean gravity. By analysing the equation of motion, we find that the entangled surface is restricted to be a minimal…

高能物理 - 理论 · 物理学 2016-06-29 Bing Sun , Weizhen Jia , Xingyang Yu

We show the flexibility of the metric entropy and obtain additional restrictions on the topological entropy of geodesic flow on closed surfaces of negative Euler characteristic with smooth non-positively curved Riemannian metrics with fixed…

动力系统 · 数学 2020-08-07 Thomas Barthelmé , Alena Erchenko

We consider exact and asymptotic solutions of the stationary cubic nonlinear Schr\"odinger equation (NLSE) on metric graphs. We focus on some basic example graphs. The asymptotic solutions are obtained using the canonical perturbation…

斑图形成与孤子 · 物理学 2017-02-22 Sven Gnutzmann , Daniel Waltner

Many nonlocal models have adopted Euclidean balls as the nonlocal interaction neighborhoods. When solving them numerically, it is sometimes convenient to adopt polygonal approximations of such balls. A crucial question is, to what extent…

数值分析 · 数学 2022-05-27 Qiang Du , Hehu Xie , Xiaobo Yin

Consider a stationary Poisson process $\eta$ in the $d$-dimensional Euclidean or hyperbolic space and construct a random graph with vertex set $\eta$ as follows. First, each point $x\in\eta$ is connected by an edge to its nearest neighbour,…

概率论 · 数学 2024-11-04 Holger Sambale , Christoph Thäle , Tara Trauthwein

This work revolves around the rigorous asymptotic analysis of models in nonlocal hyperelasticity. The corresponding variational problems involve integral functionals depending on nonlocal gradients with a finite interaction range $\delta$,…

偏微分方程分析 · 数学 2024-04-30 Javier Cueto , Carolin Kreisbeck , Hidde Schönberger

We propose and study a nonlocal conservation law modelling traffic flow in the existence of inter-vehicle communication. It is assumed that the nonlocal information travels at a finite speed and the model involves a space-time nonlocal…

偏微分方程分析 · 数学 2023-07-06 Qiang Du , Kuang Huang , James Scott , Wen Shen

In this work we establish that finite directed graphs give rise to semiflows on the power set of their nodes. We analyze the topological dynamics for semiflows on finite directed graphs by characterizing Morse decompositions, recurrence…

动力系统 · 数学 2020-05-29 José Ayala , Wolfgang Kliemann

By means of variational methods we investigate existence, non-existence as well as regularity of weak solutions for a system of nonlocal equations involving the fractional laplacian operator and with nonlinearity reaching the critical…

偏微分方程分析 · 数学 2015-08-24 Luiz Faria , Olimpio Miyagaki , Fabio Pereira , Marco Squassina , Chengxiang Zhang

Graph-based analysis holds both theoretical and applied significance, attracting considerable attention from researchers and yielding abundant results in recent years. However, research on fractional problems remains limited, with most of…

偏微分方程分析 · 数学 2025-06-10 Mengjie Zhang , Yong Lin , Yunyan Yang

We study localized solutions for the nonlinear graph wave equation on finite arbitrary networks. Assuming a large amplitude localized initial condition on one node of the graph, we approximate its evolution by the Duffing equation. The rest…

斑图形成与孤子 · 物理学 2019-05-22 J. G. Caputo , I. Khames , A. Knippel , A. B. Aceves

Discrete Ginzburg-Landau (DGL) equations with non-local nonlinearities have been established as significant inherently discrete models in numerous physical contexts, similar to their counterparts with local nonlinear terms. We study two…

偏微分方程分析 · 数学 2021-10-25 Dirk Hennig , Nikos I. Karachalios

We consider a general interacting particle system with interactions on a random graph, and study the large population limit of this system. When the sequence of underlying graphs converges to a graphon, we show convergence of the…

概率论 · 数学 2024-10-16 Carla Crucianelli , Ludovic Tangpi

We address semigroup well-posedness for a linear, compressible viscous fluid interacting at its boundary with an elastic plate. We derive the model by linearizing the compressible Navier-Stokes equations about an arbitrary flow state, so…

偏微分方程分析 · 数学 2018-08-17 George Avalos , Pelin Guven Geredeli , Justin T. Webster

We investigate the long-time behaviour of solutions to a nonlocal partial differential equation on smooth Riemannian manifolds of bounded sectional curvature. The equation models self-collective behaviour with intrinsic interactions that…

偏微分方程分析 · 数学 2022-10-20 Razvan C. Fetecau , Hansol Park

We rigorously derive the dense graph limit of a discrete model describing the formation of biological transportation networks. The discrete model, defined on undirected graphs with pressure-driven flows, incorporates a convex energy…

最优化与控制 · 数学 2026-01-23 Nuno J. Alves , Jan Haskovec

We study the physical Laplacian and the corresponding heat flow on an infinite, locally finite graph with possibly unbounded valence.

谱理论 · 数学 2010-01-01 Andreas Weber

In this paper, we first prove some propositions of Sobolev spaces defined on a locally finite graph $G=(V,E)$, which are fundamental when dealing with equations on graphs under the variational framework. Then we consider a nonlinear…

偏微分方程分析 · 数学 2019-08-13 Xiaoli Han , Mengqiu Shao , Liang Zhao