A Posilicano - arXiv preprint math-ph/0703078, 2007 - arxiv.org
We provide a simple recipe for obtaining all self-adjoint extensions, together with their resolvent, of the symmetric operator $ S $ obtained by restricting the self-adjoint operator …
F Gesztesy, M Mitrea - Journal d'Analyse Mathématique, 2011 - Springer
This paper has two main goals. First, we are concerned with a description of all self-adjoint extensions of the Laplacian-Δ| _ C_0^ ∞ (Ω) in L 2 (Ω; dnx). Here, the domain Ω belongs to …
F Gesztesy, M Mitrea - arXiv preprint arXiv:0803.3179, 2008 - arxiv.org
arXiv:0803.3179v2 [math.AP] 15 May 2008 Page 1 arXiv:0803.3179v2 [math.AP] 15 May 2008 GENERALIZED ROBIN BOUNDARY CONDITIONS, ROBIN-TO-DIRICHLET MAPS, AND …
We study a two-dimensional Pauli operator describing a charged quantum particle with spin 1= 2 moving on a plane in presence of an orthogonal Aharonov–Bohm magnetic flux. We …
The theory of self-adjoint extensions of symmetric operators is used to construct self-adjoint realizations of a second-order elliptic differential operator on R n with linear boundary …
A Posilicano - arXiv preprint math/0309077, 2003 - arxiv.org
Given the symmetric operator $ A_N $ obtained by restricting the self-adjoint operator $ A $ to $ N $, a linear dense set, closed with respect to the graph norm, we determine a …
We show that the Friedrichs–Lee model, which describes the one-excitation sector of a two- level atom interacting with a structured boson field, can be generalized to singular atom …
P Exner, S Kondej - Annales Henri Poincaré, 2002 - Springer
We study the Laplacian in L^2(R^3) perturbed on an infinite curve Γ by a δ interaction defined through boundary conditions which relate the corresponding generalized boundary …
D Fermi - arXiv preprint arXiv:2407.15115, 2024 - arxiv.org
This work provides an introduction and overview on some basic mathematical aspects of the single-flux Aharonov-Bohm Schr\" odinger operator. The whole family of admissible self …