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Let $\Omega \subset \mathbb{R}^N$, $N\ge 2$, be an open, connected, bounded set with $C^2$ boundary. In this paper we consider the torsion problem with Robin boundary conditions and we study the symmetry of the solutions when suitable extra…

偏微分方程分析 · 数学 2025-09-30 Nunzia Gavitone , Riccardo Molinarolo

We compare the solutions of two one-dimensional Poisson problems on an interval with Robin boundary conditions, one with given data, and one where the data has been symmetrized. When the Robin parameter is positive and the symmetrization is…

偏微分方程分析 · 数学 2021-01-26 Jeffrey J. Langford , Patrick McDonald

We consider the torsional rigidity and the principal eigenvalue related to the Laplace operator with Dirichlet and Robin boundary conditions. The goal is to find upper and lower bounds to products of suitable powers of the quantities above…

偏微分方程分析 · 数学 2025-12-18 Giuseppe Buttazzo , Simone Cito , Francesco Solombrino

In this paper, we generalize a classical comparison result for solutions to Hamilton-Jacobi equations with Dirichlet boundary conditions, to solutions to Hamilton-Jacobi equations with non-zero boundary trace. As a consequence, we prove the…

偏微分方程分析 · 数学 2023-05-18 Vincenzo Amato , Andrea Gentile

Let $\Omega \subset \mathbb{R}^2$ be an open, bounded and Lipschitz set. We consider the torsion problem for the Laplace operator associated to $\Omega$ with Robin boundary conditions. In this setting, we study the equality case in the…

偏微分方程分析 · 数学 2023-02-07 Alba Lia Masiello , Gloria Paoli

We compare the solutions of two Poisson problems in a spherical shell with Robin boundary conditions, one with given data, and one where the data has been cap symmetrized. When the Robin parameters are nonnegative, we show that the solution…

偏微分方程分析 · 数学 2021-01-08 Jeffrey J. Langford

In this paper we establish a Hardy inequality for Laplace operators with Robin boundary conditions. For convex domains, in particular, we show explicitly how the corresponding Hardy weight depends on the coefficient of the Robin boundary…

谱理论 · 数学 2015-11-16 Hynek Kovarik , Ari Laptev

Gaussian random fields over infinite-dimensional Hilbert spaces require the definition of appropriate covariance operators. The use of elliptic PDE operators to construct covariance operators allows to build on fast PDE solvers for…

统计方法学 · 统计学 2017-12-13 Yair Daon , Georg Stadler

We consider an inverse problem arising in corrosion detection. We prove a stability result of logarithmic type for the determination of the corroded portion of the boundary and impedance by two measurements on the accessible portion of the…

偏微分方程分析 · 数学 2010-04-14 Eva Sincich

The purpose of this paper is to establish a quantitative version of the Talenti comparison principle for solutions to the Poisson equation with Robin boundary conditions. This quantitative enhancement is proved in terms of the asymmetry of…

偏微分方程分析 · 数学 2025-11-17 Vincenzo Amato , Rosa Barbato , Simone Cito , Alba Lia Masiello , Gloria Paoli

In this paper we prove a Faber-Krahn type inequality for the first eigenvalue of the Hermite operator with Robin boundary condition. We prove that the optimal set is an half-space and we also address the equality case in such inequality.

偏微分方程分析 · 数学 2021-04-12 Francesco Chiacchio , Nunzia Gavitone

In this paper we study the $p$-Poisson equation with Robin boundary conditions, where the Robin parameter is a function. By means of some weighted isoperimetric inequalities, we provide various sharp bounds for the solutions to the problems…

偏微分方程分析 · 数学 2022-11-22 Vincenzo Amato , Francesco Chiacchio , Andrea Gentile

In a planar infinite strip with a fast oscillating boundary we consider an elliptic operator assuming that both the period and the amplitude of the oscillations are small. On the oscillating boundary we impose Dirichlet, Neumann or Robin…

偏微分方程分析 · 数学 2014-03-25 Denis Borisov , Giuseppe Cardone , Luisa Faella , Carmen Perugia

In the last decades comparison results of Talenti type for Elliptic Problems with Dirichlet boundary conditions have been widely investigated. In this paper, we generalize the results obtained in arXiv:1909.11950 to the case of p-Laplace…

偏微分方程分析 · 数学 2021-09-20 Vincenzo Amato , Andrea Gentile , Alba Lia Masiello

In this paper, we prove a threshold result for the Robin problem of semilinear parabolic equations

偏微分方程分析 · 数学 2010-03-22 Junhui Xie , Qiuyi Dai , Huaxiang Hu

In this paper, the existence of smooth positive solutions to a Robin boundary-value problem with non-homogeneous differential operator and reaction given by a nonlinear convection term plus a singular one is established. Proofs chiefly…

偏微分方程分析 · 数学 2019-09-24 Umberto Guarnotta , Salvatore A. Marano , Dumitru Motreanu

This paper studies the existence and uniqueness of a classical solution to a type of Robin boundary problems on the nonnegative orthant. We propose a new decomposition-homogenization method for the Robin boundary problem based on…

概率论 · 数学 2024-12-20 Lijun Bo , Yijie Huang , Xiang Yu

In this work we derive global estimates for viscosity solutions to fully nonlinear elliptic equations under relaxed structural assumptions on the governing operator which are weaker than convexity and oblique boundary conditions and under…

偏微分方程分析 · 数学 2023-06-02 Junior da S. Bessa , João Vitor da Silva , Maria N. B. Frederico , Gleydson C. Ricarte

In this paper we consider PDE's problems involving the anisotropic Laplacian operator, with Robin boundary conditions. By means of Talenti techniques, widely used in the last decades, we prove a comparison result between the solutions of…

偏微分方程分析 · 数学 2021-03-05 Rossano Sannipoli

The aim of this paper is to investigate Green's function for parabolic and elliptic systems satisfying a possibly nonlocal Robin-type boundary condition. We construct Green's function for parabolic systems with time-dependent coefficients…

偏微分方程分析 · 数学 2014-09-25 Jongkeun Choi , Seick Kim
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