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In this paper, we consider a family of second-order elliptic systems subject to a periodically oscillating Robin boundary condition. We establish the qualitative homogenization theorem on any Lipschitz domains satisfying a non-resonance…

Analysis of PDEs · Mathematics 2019-02-28 Jun Geng , Jinping Zhuge

A Robin boundary-value problem with non-homogeneous differential operator, indefinite potential, and reaction defined only near zero is investigated. The existence of one or more nodal solutions is achieved by using truncation,…

Analysis of PDEs · Mathematics 2018-08-24 U. Guarnotta , S. A. Marano , N. S. Papageorgiou

We study a Robin boundary problem for degenerate parabolic equation. We suggest a notion of entropy solution and propose a result of existence and uniqueness. Numerical simulations illustrate some aspects of solution behaviour.…

Analysis of PDEs · Mathematics 2014-03-11 Mohamed Karimou Gazibo

We analyze strict positivity at the boundary for nonnegative solutions of Robin problems in general (non-smooth) domains, e.g. open sets with rectifiable topological boundaries having finite Hausdorff measure. This question was raised by…

Analysis of PDEs · Mathematics 2022-06-22 Dorin Bucur , Alessandro Giacomini , Mickaël Nahon

We investigate a parabolic-elliptic chemotaxis-consumption-growth system with a Robin boundary condition imposed on the signal. First, we analyse the steady state problem, then we show that the solutions of the system are global and…

Analysis of PDEs · Mathematics 2025-04-29 Piotr Knosalla

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…

Analysis of PDEs · Mathematics 2021-01-26 Jeffrey J. Langford , Patrick McDonald

We consider a parabolic problem with Robin boundary condition which arises when the edge of a micro-electro-mechanical-system (MEMS) device is connected with a flexible nonideal support. Then via a rigorous analysis we investigate the…

Analysis of PDEs · Mathematics 2020-07-09 Jong-Shenq Guo , N. I. Kavallaris , Chi-Jen Wang , Cherng-Yih Yu

This paper focuses on a drift-diffusion system subjected to boundedly non dissipative Robin boundary conditions. A general existence result with large initial conditions is established by using suitable L1, L2 and trace estimates. Finally,…

Analysis of PDEs · Mathematics 2018-10-02 Arnaud Heibig , Adrien Petrov , Christian Reichert

We investigate existence and nonexistence of stationary stable nonconstant solutions, i.e. patterns, of semilinear parabolic problems in bounded domains of Riemannian manifolds satisfying Robin boundary conditions. These problems arise in…

Analysis of PDEs · Mathematics 2015-07-27 Catherine Bandle , Paolo Mastrolia , Dario D. Monticelli , Fabio Punzo

The photon diffusion equation is solved making use of the Born series for the Robin boundary condition. We develop a general theory for arbitrary domains with smooth enough boundaries and explore the convergence. The proposed Born series is…

Mathematical Physics · Physics 2020-04-01 Manabu Machida , Gen Nakamura

By means of a suitable weighted rearrangement, we obtain various apriori bounds for the solutions to a Robin problem. Among other things, we derive a family of Faber-Krahn type inequalities.

Analysis of PDEs · Mathematics 2022-07-29 A. Alvino , F. Chiacchio , C. Nitsch , C. Trombetti

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

Analysis of PDEs · Mathematics 2010-03-22 Junhui Xie , Qiuyi Dai , Huaxiang Hu

In a previous paper [6] we have extended Nitsche's method [8] for the Poisson equation with general Robin boundary conditions. The analysis required that the solution is in H^s, with s > 3/2. Here we give an improved error analysis using a…

Numerical Analysis · Mathematics 2019-04-03 Nora Lüthen , Mika Juntunen , Rolf Stenberg

We study the Obata equation with Robin boundary condition $\frac{\partial f}{\partial \nu}+af=0$ on manifolds with boundary, where $a \in \mathbb{R}\setminus\{0\}$. Dirichlet and Neumann boundary conditions were previously studied by Reilly…

Differential Geometry · Mathematics 2019-11-18 Xuezhang Chen , Mijia Lai , Fang Wang

We study second order parabolic equations on Lipschitz domains subject to inhomogeneous Neumann (or, more generally, Robin) boundary conditions. We prove existence and uniqueness of weak solutions and their continuity up to the boundary of…

Analysis of PDEs · Mathematics 2011-09-01 Robin Nittka

The main result of the present paper consists in a quantitative estimate of unique continuation at the boundary for solutions to the wave equation. Such estimate is the sharp quantitative counterpart of the following strong unique…

Analysis of PDEs · Mathematics 2016-11-01 Eva Sincich , Sergio Vessella

In this paper, we consider the Stokes equations and we are concerned with the inverse problem of identifying a Robin coefficient on some non accessible part of the boundary from available data on the other part of the boundary. We first…

Analysis of PDEs · Mathematics 2013-05-07 Muriel Boulakia , Anne-Claire Egloffe , Celine Grandmont

The existence of two nontrivial smooth solutions to a semilinear Robin problem with indefinite unbounded potential and asymmetric nonlinearity $f$ is established. Both crossing and resonance are allowed. A third nonzero solution exists…

Analysis of PDEs · Mathematics 2015-06-09 Giuseppina D'Aguì , Salvatore A. Marano , Nikolaos S. Papageorgiou

We consider the cases where there is equality in Courant's nodal domain theorem for the Laplacian with a Robin boundary condition on the square. In our previous two papers, we treated the cases where the Robin parameter $h>0$ is large,…

Spectral Theory · Mathematics 2020-03-31 Katie Gittins , Bernard Helffer

We analyze initial-boundary value problems for an integrable generalization of the nonlinear Schr\"odinger equation formulated on the half-line. In particular, we investigate the so-called linearizable boundary conditions, which in this…

Exactly Solvable and Integrable Systems · Physics 2009-09-30 J. Lenells , A. S. Fokas