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Related papers: Robin conditions on the Euclidean ball

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We consider an elliptic system with regular H{\"o}lderian weight and exponential nonlinearity or with weight and boundary singularity, and, Dirichlet condition. We prove the boundedness of the volume of the solutions to those systems on the…

Analysis of PDEs · Mathematics 2022-01-06 Samy Skander Bahoura

Higher-dimensional Dedekind sums are defined as a generalization of a recent 1-dimensional probability model of Dilcher and Girstmair to a d-dimensional cube. The analysis of the frequency distribution of marked lattice points leads to new…

Number Theory · Mathematics 2007-05-23 Matthias Beck , Sinai Robins , Shelemyahu Zacks

For smooth bounded open sets in euclidean space, we construct corresponding contractive linear extension operators for the space of continuous functions which preserve regularity of functions in the domain of the Robin Laplacian. We also…

Analysis of PDEs · Mathematics 2009-07-03 Robin Nittka

The spectral theory of the p-Laplacian is well developed for classical Dirichlet and Neumann boundary conditions, but the transitional Robin regime on exterior domains remains largely unexplored. This paper studies a weighted p-Laplacian…

Analysis of PDEs · Mathematics 2025-12-29 Subha Pal , Sarath Sasi

We consider second order elliptic operators with real, nonsymmetric coefficient functions which are subject to mixed boundary conditions. The aim of this paper is to provide uniform resolvent estimates for the realizations of these…

Analysis of PDEs · Mathematics 2020-05-13 Ralph Chill , Hannes Meinlschmidt , Joachim Rehberg

In \cite{CJ1} M. Jaoua et al. studied the linear approximation of Robin problem on $\Omega$ an open bounded domain of $\R^d$, and they given some important results. In this paper, we study a nonlinear approximation of an elliptic problem…

Analysis of PDEs · Mathematics 2024-09-26 Jamel Benameur , Chokri Elhechmi

We show, using symmetrization techniques, that it is possible to prove a comparison principle (we are mainly focused on $L^1$ comparison) between solutions to an elliptic partial differential equation on a smooth bounded set $\Omega$ with a…

Analysis of PDEs · Mathematics 2021-04-05 A. Alvino , F. Chiacchio , C. Nitsch , C. Trombetti

By applying Ricceri's variational principle, we demonstrate the existence of solutions for the following Robin problem \begin{equation*}\left\{ \begin{array}{cc}-\func{div}\left( \omega _{1}(x)\left\vert \nabla u\right\vert^{p(x)-2}\nabla…

Analysis of PDEs · Mathematics 2020-12-15 Ismail Aydin , Cihan Unal

We prove the Kato square root estimate for second-order divergence form elliptic operators $-div(A\nabla)$ on a bounded, locally uniform domain $D \subseteq \mathbb{R}^n$, for accretive coefficients $A \in L^\infty(D; \mathbb{C}^n)$, under…

Analysis of PDEs · Mathematics 2026-01-09 Sebastian Bechtel , Andreas Rosén

Boundary conditions for the Maxwell and Dirac fields at material surfaces are widely-used and physically well-motivated, but do not appear to have been generalised to deal with higher spin fields. As a result there is no clear prescription…

High Energy Physics - Theory · Physics 2018-03-15 Adam Stokes , Robert Bennett

We consider the Robin boundary value problem $\mathrm{div} (A \nabla u) = \mathrm{div} \mathbf{f}+F$ in $\Omega$, $\mathcal{C}^1$ domain, with $(A \nabla u - \mathbf{f})\cdot \mathbf{n} + \alpha u = g$ on $\Gamma$, where the matrix $A$…

Analysis of PDEs · Mathematics 2018-09-25 Cherif Amrouche , Carlos Conca , Amrita Ghosh , Tuhin Ghosh

We solve the Dirichlet problem for fully nonlinear elliptic equations on Riemannian manifolds under essentially optimal structure conditions, especially with no restrictions to the curvature of the underlying manifold and the second…

Analysis of PDEs · Mathematics 2018-08-30 Bo Guan

For a second order formally symmetric elliptic differential expression we show that the knowledge of the Dirichlet-to-Neumann map or Robin-to-Dirichlet map for suitably many energies on an arbitrarily small open subset of the boundary…

Analysis of PDEs · Mathematics 2020-04-22 Jussi Behrndt , Jonathan Rohleder

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

The problem of boundary behaviour at the origin of coordinates is discussed for D-dimensional Schrodinger equation in the framework of hyper spherical formalism, which have been often considered last time. We show that the Dirichlet…

Quantum Physics · Physics 2022-06-02 Anzor Khelashvili , Teimuraz Nadareishvili

We consider shape optimization problems for general integral functionals of the calculus of variations that may contain a boundary term. In particular, this class includes optimization problems governed by elliptic equations with a Robin…

Optimization and Control · Mathematics 2020-07-23 Giuseppe Buttazzo , Francesco Paolo Maiale

The worldline formalism has been widely used to compute physical quantities in quantum field theory. However, applications of this formalism to quantum fields in the presence of boundaries have been studied only recently. In this article we…

High Energy Physics - Theory · Physics 2008-11-26 Fiorenzo Bastianelli , Olindo Corradini , Pablo A. G. Pisani

We study the modular Hamiltonian of an interval for the ground state of a massive free scalar field on the half line with Robin boundary conditions, by employing a numerical method. When the interval is adjacent to the boundary, we find…

High Energy Physics - Theory · Physics 2025-12-05 Christoph Minz , Erik Tonni

In this paper, we deal with analysis of the initial-boundary value problems for the semilinear time-fractional diffusion equations, while the case of the linear equations was considered in the first part of the present work. These equations…

Analysis of PDEs · Mathematics 2024-11-11 Yuri Luchko , Masahiro Yamamoto

We describe a highly efficient numerical scheme for finding two-sided bounds for the eigenvalues of the fractional Laplace operator (-Delta)^{alpha/2} in the unit ball D in R^d, with a Dirichlet condition in the complement of D. The…

Analysis of PDEs · Mathematics 2017-05-17 Bartłomiej Dyda , Alexey Kuznetsov , Mateusz Kwaśnicki