Francesca Arici,Yufan Ge
Francesca Arici
Motivated by the interplay between quadratic algebras, noncommutative geometry, and operator theory, we introduce the notion of quadratic subproduct systems of Hilbert spaces. Specifically, we study the subproduct systems induced by a finit...
Connor Evans,Zinaida A Lykova,N J Young
Connor Evans
The purpose of this paper is to develop the theory of holomorphic functions with modulus bounded by 1 on the symmetrized skew bidisc G r = def { ( λ 1 + r λ 2 , r λ 1 λ 2 ) : λ 1 ∈ D , λ 2 ∈ D } , ...
Jim Agler,Zinaida A Lykova,N J Young
Jim Agler
In this paper we shall use realization theory, a favourite technique of Rien Kaashoek, to prove new results about a class of holomorphic functions on an annulus R δ = def { z ∈ C : δ
Felix L Schwenninger,Jens de Vries
Felix L Schwenninger
We thoroughly analyse the double-layer potential's role in approaches to spectral sets in the spirit of Delyon-Delyon, Crouzeix and Crouzeix-Palencia. While the potential is well-studied, we aim to clarify on several of its aspects in light...
Spectral Transition for Dirac Operators with Electrostatic [Formula: see text] -Shell Potentials Supported on the Straight Line [0.03%]
直线上电静电[公式]壳势的Dirac算子的谱跃迁
Jussi Behrndt,Markus Holzmann,Matěj Tušek
Jussi Behrndt
In this note the two dimensional Dirac operator A η with an electrostatic δ -shell interaction of strength η ∈ R supported on a straight line is studied. We observe a spectral transition in the sense that for the crit...
Coupled Domain-Boundary Variational Formulations for Hodge-Helmholtz Operators [0.03%]
Hodge-Helmholtz算子的域-边界变分公式及其耦合
Erick Schulz,Ralf Hiptmair
Erick Schulz
We couple the mixed variational problem for the generalized Hodge-Helmholtz or Hodge-Laplace equation posed on a bounded 3D Lipschitz domain with the first-kind boundary integral equations arising from the latter when constant coefficients ...
Loaiza, Maribel; Lozano, Carmen
Loaiza
Erratum to: Closed-Range Composition Operators on({mathbb{A}^2})and the Bloch Space [0.03%]
更正：({mathbb{A}^2})上的闭值域复合算子与Bloch空间
Akeroyd, John R.; Ghatage, Pratibha G.; Tjani et al.
Akeroyd et al.