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In this paper we study the asymptotic behavior of $u$-capacities of small sets and its application to the analysis of the eigenvalues of the Dirichlet-Laplacian on a bounded planar domain with a small hole. More precisely, we consider two…

Analysis of PDEs · Mathematics 2019-11-18 Laura Abatangelo , Virginie Bonnaillie-Noël , Corentin Léna , Paolo Musolino

Taking advantage from the so-called "Lemma on small eigenvalues" by Colin de Verdi\`ere, we study ramification for multiple eigenvalues of the Dirichlet Laplacian in bounded perforated domains. The asymptotic behavior of multiple…

Analysis of PDEs · Mathematics 2022-08-30 Laura Abatangelo , Corentin Léna , Paolo Musolino

The Neumann problem in two-dimensional domain with a narrow slit is studied. The width of the slit is a small parameter. The complete asymptotic expansion for the eigenvalue of the perturbed problem converging to a simple eigenvalue of the…

Mathematical Physics · Physics 2007-05-23 R. Gadyl'shin , Arlen M. Il'in

This paper is concerned with the homogenization of the Dirichlet eigenvalue problem, posed in a bounded domain $\Omega\subset\mathbb R^2$, for a vectorial elliptic operator $-\nabla\cdot A^\epsilon(\cdot)\nabla$ with $\epsilon$-periodic…

Analysis of PDEs · Mathematics 2011-11-11 Christophe Prange

This paper considers how the eigenvalues of the Neumann problem for an elliptic operator depend on the domain. The proximity of two domains is measured in terms of the norm of the difference between the two resolvents corresponding to the…

Analysis of PDEs · Mathematics 2014-12-19 Vladimir Kozlov , Johan Thim

We study eigenvalues of general scalar Dirichlet polyharmonic problems in domains in $\mathbb R^{d}$. We first prove a number of inequalities satisfied by the eigenvalues on general domains, depending on the relations between the orders of…

Analysis of PDEs · Mathematics 2025-06-17 Davide Buoso , Pedro Freitas

In this note we study the eigenvalue growth of infinite graphs with discrete spectrum. We assume that the corresponding Dirichlet forms satisfy certain Sobolev-type inequalities and that the total measure is finite. In this sense, the…

Spectral Theory · Mathematics 2018-04-24 Bobo Hua , Matthias Keller , Michael Schwarz , Melchior Wirth

We investigate a Dirichlet problem for the Laplace equation in a domain of $\mathbb{R}^2$ with two small close holes. The domain is obtained by making in a bounded open set two perforations at distance $|\epsilon_1|$ one from the other and…

Analysis of PDEs · Mathematics 2017-05-08 M. Dalla Riva , P. Musolino

We are interested in the effect of Dirichlet boundary conditions on the nodal length of Laplace eigenfunctions. We study random Gaussian Laplace eigenfunctions on the two dimensional square and find a two terms asymptotic expansion for the…

Probability · Mathematics 2021-04-28 Oleksiy Klurman , Andrea Sartori

We analyze the asymptotic behavior of the eigenvalues of nonlinear elliptic problems under Dirichlet boundary conditions and mixed (Dirichlet, Neumann) boundary conditions on domains becoming unbounded. We make intensive use of Picone…

Analysis of PDEs · Mathematics 2021-03-08 Luca Esposito , Prosenjit Roy , Firoj Sk

We consider a string with fixed endpoints where the mass density and/or the elastic coefficient vary in a self-affine way as function of position. It is demonstrated how the eigenvalues in the asymptotic limit are distributed. Scaling laws…

Disordered Systems and Neural Networks · Physics 2007-05-23 Ingve Simonsen , Alex Hansen

We consider the transmission eigenvalue problem for an impenetrable obstacle with Dirichlet boundary condition surrounded by a thin layer of non-absorbing inhomogeneous material. We derive a rigorous asymptotic expansion for the first…

Analysis of PDEs · Mathematics 2013-12-06 Fioralba Cakoni , Nicolas Chaulet , Houssem Haddar

I discuss a simple toy problem for the Dirichlet Laplacian in a sequence of domains where the contribution of the boundary to the spectral asymptotics is of the same order as the contribution from the interior

Spectral Theory · Mathematics 2024-01-24 Leonid Friedlander

We consider the eigenvalues of an elliptic operator for systems with bounded, measurable, and symmetric coefficients. We assume we have two non-empty, open, disjoint, and bounded sets and add a set of small measure to form the perturbed…

Analysis of PDEs · Mathematics 2012-07-30 Justin L. Taylor

We study the Laplace operator subject to Dirichlet boundary conditions in a two-dimensional domain that is one-to-one mapped onto a cylinder (rectangle or infinite strip). As a result of this transformation the original eigenvalue problem…

Spectral Theory · Mathematics 2025-10-20 A. Aslanyan , E. B. Davies

In this work a discontinuous boundary-value problem with retarded argument which contains spectral parameter in the transmission conditions at the point of discontinuity are investigated. We obtained asymptotic formulas for the eigenvalues…

Classical Analysis and ODEs · Mathematics 2015-06-12 Erdoğan Şen , Azad Bayramov

This work addresses the Galerkin isogeometric discretization of the one-dimensional Laplace eigenvalue problem subject to homogeneous Dirichlet boundary conditions on a bounded interval. We employ GLT theory to analyze the behavior of the…

Numerical Analysis · Mathematics 2025-10-15 Lamsahel Noureddine , Abdeladim El Akri , Ahmed Ratnani

The classical Painlev\'e equations are so well known that it may come as a surprise to learn that the asymptotic description of its solutions remains incomplete. The problem lies mainly with the description of families of solutions in the…

Exactly Solvable and Integrable Systems · Physics 2013-11-26 Nalini Joshi

We study the asymptotics of solutions of logistic type equations with fractional Laplacian as time goes to infinity and as the exponent in nonlinear part goes to infinity. We prove strong convergence of solutions in the energy space and…

Analysis of PDEs · Mathematics 2023-08-22 Tomasz Klimsiak

In this paper we consider a non-local problem for a Laplace operator in a multidimensional bounded symmetric domain. The investigated problem is an analogue of the classical periodic boundary value problems in the case of non-rectangular…

Analysis of PDEs · Mathematics 2016-08-22 Makhmud A. Sadybekov , Berikbol T. Torebek