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In this paper, we prove the existence and global boundedness from above for a solution to an integrodifferential model for nonisothermal multi-phase transitions under nonhomogeneous third type boundary conditions. The system couples a…

偏微分方程分析 · 数学 2015-03-17 Pierluigi Colli , Pavel Krejčí , Elisabetta Rocca , Jürgen Sprekels

In this paper we study the existence, the optimal regularity of solutions, and the regularity of the free boundary near the so-called \emph{regular points} in a thin obstacle problem that arises as the local extension of the obstacle…

偏微分方程分析 · 数学 2019-06-18 Agnid Banerjee , Donatella Danielli , Nicola Garofalo , Arshak Petrosyan

We consider a parabolic non-local free boundary problem that has been derived as a limit of a bulk-surface reaction-diffusion system which models cell polarization. The authors have justified the well-posedness of this problem and have…

偏微分方程分析 · 数学 2023-04-24 Anna Logioti , Barbara Niethammer , Matthias Röger , Juan J. L. Velázquez

We provide a sharp lower bound for the perimeter of the inner parallel sets of a convex body $\Omega$. The bound depends only on the perimeter and inradius $r$ of the original body and states that \[|\partial\Omega_t| \geq…

度量几何 · 数学 2020-05-05 Simon Larson

Two-dimensional topological insulators possess conducting edge states at their boundary while being insulating in the bulk. The detection of edge states remains an open question in ultracold atom setups. We propose a configuration to…

量子气体 · 物理学 2020-06-30 Bernhard Irsigler , Jun-Hui Zheng , Walter Hofstetter

We justify rigorously the equilibrium-diffusion limit of the model consists of a radiative transfer satisfied by the specific intensity of radiation coupled to a diffusion equation satisfied by the material temperature. For general initial…

偏微分方程分析 · 数学 2025-04-28 Lei Li

In the present work we study classifiers' decision boundaries via Brownian motion processes in ambient data space and associated probabilistic techniques. Intuitively, our ideas correspond to placing a heat source at the decision boundary…

机器学习 · 计算机科学 2021-01-18 Bogdan Georgiev , Lukas Franken , Mayukh Mukherjee

$SU(N)$ gauge theories on compact spaces have a non-trivial vacuum structure characterized by a countable set of topological sectors and their topological charge. In lattice simulations, every topological sector needs to be explored a…

高能物理 - 格点 · 物理学 2020-08-12 Yannis Burnier , Adrien Florio , Olaf Kaczmarek , Lukas Mazur

This paper is about nonequilibrium steady states (NESS) of a class of stochastic models in which particles exchange energy with their "local environments" rather than directly with one another. The physical domain of the system can be a…

数学物理 · 物理学 2016-03-25 Yao Li , Peter Nandori , Lai-Sang Young

We obtain (i) lower and upper bounds for the heat content of an open set in $\mathbb{R}^m$ with $R$-smooth boundary and finite Lebesgue measure, (ii) a necessary and sufficient geometric condition for finiteness of the heat content in…

偏微分方程分析 · 数学 2016-08-01 Michiel van den Berg , Katie Gittins

The problem of heat conduction in one-dimensional piecewise homogeneous composite materials is examined by providing an explicit solution of the one-dimensional heat equation in each domain. The location of the interfaces is known, but…

数值分析 · 数学 2016-12-23 Natalie E. Sheils

In this paper we study the system of a scalar quantum field confined between two plane, isotropic, and homogeneous parallel plates at thermal equilibrium. We represent the plates by the most general lossless and frequency-independent…

高能物理 - 理论 · 物理学 2020-09-01 J. M. Munoz-Castaneda , L. Santamaria-Sanz , M. Donaire , M. Tello-Fraile

This paper reviews results about free convection near a vertical flat plate embedded in some saturated porous medium. We focus on a third order autonomous differential equation that gives a special class of solutions called similarity…

经典分析与常微分方程 · 数学 2007-05-23 B. Brighi , J. -D. Hoernel

This paper is devoted to studying the inflow problem for an ideal polytropic model with non-viscous gas in one-dimensional half space. We showed the existence of the boundary layer in different areas. By employing the energy method, we also…

偏微分方程分析 · 数学 2018-06-01 Meichen Hou , Lili Fan

In this paper we introduce a variational model for the study of multilayer films that allows for the treatment of both coherent and incoherent interfaces between layers. The model is designed in the framework of the theory of Stress Driven…

偏微分方程分析 · 数学 2024-01-29 Randy Llerena , Paolo Piovano

In this paper, the boundary flex control problem of non stationary equation governing the coupled mass and heat flow of a viscous incompressible fluid in a generalized Boussinesq approximation by assuming that viscosity and heat…

偏微分方程分析 · 数学 2012-07-18 Gol Kim

We use holographic techniques to study the zero-temperature limit of dissipation for a Brownian particle moving in a strongly coupled CFT at finite temperature in various space-time dimensions. The dissipative term in the boundary theory…

高能物理 - 理论 · 物理学 2016-04-20 Pinaki Banerjee , B. Sathiapalan

Three inverse boundary value problems for the heat equations in one space dimension are considered. Those three problems are: extracting an unknown interface in a heat conductive material, an unknown boundary in a layered material or a…

偏微分方程分析 · 数学 2007-05-23 Masaru Ikehata

This paper considers the problem of heat transfer in a composite ceramic material where the structural elements are bonded to the matrix via a thin heat resistant adhesive layer. The layer has the form of a circular ring or close to it.…

材料科学 · 物理学 2016-04-21 Daria Andreeva , Wiktoria Miszuris , Alexander Zagnetko

This paper is devoted to the diffusive limit of the nonlinear radiative heat transfer system with curved boundary domain (\textit{two dimensional disk}). The solution constructed in \cite{ghattassi2022convergence} by the leading order…

偏微分方程分析 · 数学 2023-05-30 Mohamed Ghattassi , Xiaokai Huo , Nader Masmoudi