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Related papers: Isospectral domains with mixed boundary conditions

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Spectral problem for the Dirac operator with regular but not strongly regular boundary conditions and complex-valued potential summable over a finite interval is considered. The purpose of this paper is to find conditions under which the…

Spectral Theory · Mathematics 2019-02-11 Alexander Makin

Recently Rohleder proposed a new variational approach to an inequality between the Neumann and Dirichlet eigenvalues in the simply connected planar case using the language of classical vector analysis. Writing his approach in terms of…

Differential Geometry · Mathematics 2025-01-30 Muravyev Mikhail

We define and study the properties of Darboux-type transformations between Sturm--Liouville problems with boundary conditions containing rational Herglotz--Nevanlinna functions of the eigenvalue parameter (including the Dirichlet boundary…

Spectral Theory · Mathematics 2020-07-01 Namig J. Guliyev

We consider the mixed Dirichlet-conormal problem on irregular domains in $\mathbb{R}^d$. Two types of regularity results will be discussed: the $W^{1,p}$ regularity and a non-tangential maximal function estimate. The domain is assumed to be…

Analysis of PDEs · Mathematics 2020-03-26 Hongjie Dong , Zongyuan Li

We establish two-term spectral asymptotics for the operator of linear elasticity with mixed boundary conditions on a smooth compact Riemannian manifold of arbitrary dimension. We illustrate our results by explicit examples in dimension two…

Spectral Theory · Mathematics 2026-03-18 Matteo Capoferri , Isabel Mann

In this paper we introduce new characterizations of spectral fractional Laplacian to incorporate nonhomogeneous Dirichlet and Neumann boundary conditions. The classical cases with homogeneous boundary conditions arise as a special case. We…

Numerical Analysis · Mathematics 2017-09-12 Harbir Antil , Johannes Pfefferer , Sergejs Rogovs

The choice of boundary condition makes an essential difference in the solution structure of diffusion equations. The Dirichlet and Neumann boundary conditions and their combination have been the most used, but their legitimacy has been…

Analysis of PDEs · Mathematics 2023-08-02 Jaywan Chung , Seungmin Kang , Ho-Youn Kim , Yong-Jung Kim

We analyze Einstein's vacuum field equations in generalized harmonic coordinates on a compact spatial domain with boundaries. We specify a class of boundary conditions which is constraint-preserving and sufficiently general to include…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Milton Ruiz , Oliver Rinne , Olivier Sarbach

We initiate the study of noncharacteristic boundary layers in hyperbolic-parabolic problems with Neumann boundary conditions. More generally, we study boundary layers with mixed Dirichlet--Neumann boundary conditions where the number of…

Analysis of PDEs · Mathematics 2012-07-31 Olivier Gues , Guy Metivier , Mark Williams , Kevin Zumbrun

We study semilinear problems in bounded $C^{1,1}$ domains for non-local operators with a boundary condition. The operators cover and extend the case of the spectral fractional Laplacian. We also study harmonic functions with respect to the…

Analysis of PDEs · Mathematics 2022-12-07 Ivan Biocic

We find a solution of a quasilinear elliptic equation with Dirichlet's boundary condition on a smooth bounded domain and involving an unbounded continuous nonlinearity with oscillatory behavior near the origin.

Analysis of PDEs · Mathematics 2017-03-02 Rafael dos Reis Abreu , Anderson Luis Albuquerque de Araujo

In the present article we present a particular combination of boundary problems for the inhomogeneous tri-analytic equation: the Neumann-(Dirichlet-Neuman) problem and the (Dirichlet-Neumann)-Dirichlet problem. In order to obtain the…

Complex Variables · Mathematics 2011-06-21 Antonio N. Di Teodoro , Carmen J. Vanegas

For a second-order symmetric strongly elliptic operator A on a smooth bounded open set \Omega in R^n with boundary \Sigma, the mixed problem is defined by a Neumann-type condition on a part Sigma_+ of the boundary and a Dirichlet condition…

Analysis of PDEs · Mathematics 2011-07-19 Gerd Grubb

This paper deals with some classes of Kirchhoff type problems on a double phase setting and with nonlinear boundary conditions. Under general assumptions, we provide multiplicity results for such problems in the case when the perturbations…

Analysis of PDEs · Mathematics 2021-12-16 Alessio Fiscella , Greta Marino , Andrea Pinamonti , Simone Verzellesi

We study the Dirichlet to Neumann operator of the $\overline{\partial}$-Neumann problem, and the relation between the $\overline{\partial}$-Neumann boundary conditions and the Dirichlet to Neumann operator.

Complex Variables · Mathematics 2018-11-07 Dariush Ehsani

In this paper we study some Schrodinger-Poisson type systems on a bounded domain, with Dirichlet boundary condition on both the variables.

Analysis of PDEs · Mathematics 2011-09-30 Antonio Azzollini , Pietro d'Avenia , Valeria Luisi

In contrast with classical Schwarz theory, recent results have shown that for special domain geometries, one-level Schwarz methods can be scalable. This property has been proved for the Laplace equation and external Dirichlet boundary…

Numerical Analysis · Mathematics 2021-03-30 Gabriele Ciaramella , Luca Mechelli

In this article we consider a system of eikonal equations with a Dirichlet boundary condition. We propose a variational method to select the class of solutions which minimize the discontinuity set of the gradient.

Analysis of PDEs · Mathematics 2012-06-18 Gisella Croce , Giovanni Pisante

We consider spectral problems for Laplace operator in 3D rod structures with a small cross section of diameter $O(\varepsilon)$, $\varepsilon$ being a positive parameter. The boundary conditions are Dirichlet (Neumann, respectively) on the…

Analysis of PDEs · Mathematics 2025-12-29 Pablo Benavent-Ocejo , Delfina Gómez , Maria-Eugenia Pérez-Martínez

The multiple-Dirichlet-to-Neumann (multiple-DtN) non-reflecting boundary condition is adapted to acoustic scattering from obstacles embedded in the half-plane. The multiple-DtN map is coupled with the method of images as an alternative…

Computational Physics · Physics 2014-01-03 Sebastian Acosta , Vianey Villamizar , Bruce Malone