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A new definition of conditional invariance for boundary value problems involving a wide range of boundary conditions (including initial value problems as a special case) is proposed. It is shown that other definitions worked out in order to…

数学物理 · 物理学 2014-12-23 Roman Cherniha , John R King

We study steady Boltzmann equation in half-space, which arises in the Knudsen boundary layer problem, with diffusive reflection boundary conditions. Under certain admissible conditions and the source term decaying exponentially, we…

偏微分方程分析 · 数学 2021-04-09 Yong Wang , Feimin Huang

The paper is devoted to the study of positive solutions of a second-order linear elliptic equation in divergence form in a domain $D\subseteq \mathbb{R}^n$ that satisfy an oblique boundary condition on a portion of $\partial D$. First, we…

偏微分方程分析 · 数学 2020-08-11 Yehuda Pinchover , Idan Versano

In this paper we consider a porous-elastic system consisting of nonlinear boundary/interior damping and nonlinear boundary/interior sources. Our interest lies in the theoretical understanding of the existence, finite time blow-up of…

偏微分方程分析 · 数学 2018-08-01 Vo Anh Khoa , Le Thi Phuong Ngoc , Nguyen Thanh Long

We study a space-fractional Stefan problem with the Dirichlet boundary conditions. It is a model that describes superdiffusive phenomena. Our main result is the existence of the unique classical solution to this problem. In the proof we…

偏微分方程分析 · 数学 2023-08-08 S. D. Roscani , K. Ryszewska , L. D. Venturato

Existence and uniqueness of the scattering solutions is proved for a class of bounded rough obstacles which is much larger than the class of Lipschitz obstacles. Integral equations method is not used. The approach is based on the…

数学物理 · 物理学 2007-05-23 A. G. Ramm , M. Sammartino

Deep neural networks for automatic image colorization often suffer from the color-bleeding artifact, a problematic color spreading near the boundaries between adjacent objects. Such color-bleeding artifacts debase the reality of generated…

计算机视觉与模式识别 · 计算机科学 2021-09-22 Eungyeup Kim , Sanghyeon Lee , Jeonghoon Park , Somi Choi , Choonghyun Seo , Jaegul Choo

The aim of this paper is to state and prove existence and uniqueness results for a general elliptic problem with homogeneous Neumann boundary conditions, often associated with image processing tasks like denoising. The novelty is that we…

偏微分方程分析 · 数学 2025-03-11 Bogdan Maxim

In this paper, we obtained the sufficient conditions for the existence of solutions to the discrete boundary value problems of fractional difference equation depending on parameters. We use Krasnoselskii fixed point theorem to establish the…

经典分析与常微分方程 · 数学 2020-04-01 Deepak B. Pachpatte , Arif S. Bagwan , Amol D. Khandagale

We show existence of solutions for the equations of static atomistic nonlinear elasticity theory on a bounded domain with prescribed boundary values. We also show their convergence to the solutions of continuum nonlinear elasticity theory,…

偏微分方程分析 · 数学 2016-06-30 Julian Braun , Bernd Schmidt

We consider a system of PDEs of Monge-Kantorovich type that, in the isotropic case, describes the stationary configurations of two-layers models in granular matter theory with a general source and a general boundary data. We propose a new…

偏微分方程分析 · 数学 2015-12-10 Graziano Crasta , Annalisa Malusa

We consider a one-dimensional free boundary problem governed by a nonlinear diffusion - convection equation with a Neumann condition at fixed face $x=0$, which is variable in time and a like Stefan convective condition on the free boundary.…

偏微分方程分析 · 数学 2024-10-07 Adriana C. Briozzo

In this paper, we delve into the study of evolution equations that exhibit white-noise boundary conditions. Our primary focus is to establish a necessary and sufficient condition for the existence of solutions, by utilizing the concept of…

概率论 · 数学 2023-05-22 Mohamed Fkirine , Said Hadd , Abdelaziz Rhandi

Motivated by porous medium equations with randomly perturbed velocity field, this paper considers a class of nonlinear degenerate diffusion equations with nonlinear conservative noise in bounded domains. The existence, uniqueness and…

概率论 · 数学 2023-09-06 Kai Du , Ruoyang Liu , Yuxing Wang

We consider conservation laws with source terms in a bounded domain with Dirichlet boundary conditions. We first prove the existence of a strong trace at the boundary in order to provide a simple formulation of the entropy boundary…

偏微分方程分析 · 数学 2008-11-05 G. C. Coclite , K. H. Karlsen , Y. -S. Kwon

This paper considers to the problems of diffraction of electromagnetic waves on a half-plane, which has a finite inclusion in the form of a Lipschitz curve. The diffraction problem formulated as boundary value problem for Helmholtz…

数学物理 · 物理学 2018-03-06 E. Lipachev

We consider a boundary value problem involving conformable derivative of order $\alpha ,$ $1<\alpha <2$ and Dirichlet conditions. To prove the existence of solutions, we apply the method of upper and lower solutions together with Schauder's…

经典分析与常微分方程 · 数学 2017-10-31 Rabah Khaldi , Guezane-Lakoud Assia

We establish existence and multiplicity theorems for a Dirichlet boundary value problem at resonance, which is a nonlinear subcritical perturbation of a linear eigenvalue problem studied by Cuesta. Our framework includes a sign-changing…

偏微分方程分析 · 数学 2007-05-23 Teodora Liliana Dinu

Recent object detectors have achieved impressive accuracy in identifying objects seen during training. However, real-world deployment often introduces novel and unexpected objects, referred to as out-of-distribution (OOD) objects, posing…

Employing a limiting case of a conjecture for constructing piecewise separable-variables functions, the elements of the Pseudoanalytic Function Theory are used for numerically approaching solutions of the forward Dirichlet boundary value…

数学物理 · 物理学 2012-10-18 M. P. Ramirez T. , C. M. A. Robles G. , R. A. Hernandez-Becerril