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There exist several interesting results in the literature on subnormal operator tuples having their spectral properties tied to the geometry of strictly pseudoconvex domains or to that of bounded symmetric domains in $\C^n$. We introduce a…

Functional Analysis · Mathematics 2016-12-20 Ameer Athavale

We investigate the properties of self-adjointness of a two-dimensional Dirac operator on an infinite sector with infinite mass boundary conditions and in presence of a Coulomb-type potential with the singularity placed on the vertex. In the…

Analysis of PDEs · Mathematics 2022-07-20 Biagio Cassano , Matteo Gallone , Fabio Pizzichillo

This paper mainly studies totally Abelian operators in the context of analytic Toeplitz operators on both the Hardy and Bergman space. When the symbol is a meromorphic function on $\mathbb{C}$, we establish the connection between totally…

Complex Variables · Mathematics 2016-08-12 Hui Dan , Kunyu Guo , Hansong Huang

In this paper we survey and bring together several approaches to obtaining inner functions for Toeplitz operators. These approaches include the classical definition, the Wold decomposition, the operator-valued Poisson Integral, and Clark…

Complex Variables · Mathematics 2018-09-13 Raymond Cheng , Javad Mashreghi , William T. Ross

The boundedness and compactness of Toeplitz operator from $A_\omega^p$ to $A_\omega^q$ with doubling weights $\omega$ are studied in this paper. The characterizations of Schatten class Toeplitz operators and Volterra operators on…

Complex Variables · Mathematics 2019-09-24 Juntao Du , Songxiao Li

In this article, the authors survey and review the studies of boundary value problems for regular functions in Clifford analysis, which include theoretical foundations and useful methods. Its theoretical bases consist of the generalized…

Complex Variables · Mathematics 2025-09-16 J. Y. Du , P. Dang

Boutet de Monvel's calculus provides a pseudodifferential framework which encompasses the classical differential boundary value problems. In an extension of the concept of Lopatinski and Shapiro, it associates to each operator two symbols:…

K-Theory and Homology · Mathematics 2018-11-28 Severino Melo , Elmar Schrohe , Thomas Schick

We prove several results concerning the theory of Toeplitz algebras over $p$-Fock spaces using a correspondence theory of translation invariant symbol and operator spaces. The most notable results are: The full Toeplitz algebra is the norm…

Functional Analysis · Mathematics 2020-06-03 Robert Fulsche

In this paper we study Toeplitz and Ces\`aro-type operators on holomorphic function spaces on a homogeneous Siegel domain of Type II. We prove several necessary conditions and sufficient conditions for these operators to be continuous or…

Complex Variables · Mathematics 2021-10-11 Mattia Calzi , Marco M. Peloso

We present an introduction to boundary value problems for Dirac-type operators on complete Riemannian manifolds with compact boundary. We introduce a very general class of boundary conditions which contains local elliptic boundary…

Differential Geometry · Mathematics 2024-10-02 Christian Baer , Werner Ballmann

We extend Krupnik's criterion of self-adjointness of the Cauchy singular integral operator to the case of finitely connected domains. The main aim of the paper is to present a new approach for proof of the criterion.

Functional Analysis · Mathematics 2007-05-23 Alexey Tikhonov

We extend the Boutet de Monvel Toeplitz index theorem to complex manifold with isolated singularities following the relative $K$-homology theory of Baum, Douglas, and Taylor for manifold with boundary. We apply this index theorem to study…

Operator Algebras · Mathematics 2014-05-30 Ronald G. Douglas , Xiang Tang , Guoliang Yu

The definition of Toeplitz operators in the Bergman space $A^2(D)$ of square integrable analytic functions in the unit disk in the complex plane is extended in such way that it covers many cases where the traditional definition does not…

Complex Variables · Mathematics 2016-05-24 Grigori Rozenblum , Nikolai Vasilevski

We study the index bundle of the Dirac-Ramond operator associated with a family $\pi: Z \to X$ of compact spin manifolds. We view this operator as the formal twisted Dirac operator $\dd \otimes \bigotimes_{n=1}^{\infty}S_{q^n}TM_{\C}$ so…

Algebraic Topology · Mathematics 2012-02-10 Chris Harris

Let $D$ be an irreducible bounded symmetric domain with biholomorphism group $G$ with maximal compact subgroup $K$. For the Toeplitz operators with $K$-invariant symbols we provide explicit simultaneous diagonalization formulas on every…

Functional Analysis · Mathematics 2017-11-02 Matthew Dawson , Raul Quiroga-Barranco

Let $D$ be the irreducible bounded symmetric domain of $2\times2$ complex matrices that satisfy $ZZ^* < I_2$. The biholomorphism group of $D$ is realized by $\mathrm{U}(2,2)$ with isotropy at the origin given by…

Functional Analysis · Mathematics 2019-06-03 Matthew Dawson , Gestur Olafsson , Raul Quiroga-Barranco

On the weakly pseudo-convex domains $\Omega_p^n$ we introduce quasi-homogeneous quasi-radial symbols. These are used to prove the existence of a commutative Banach algebra of Toeplitz operators on Bergman space of $\Omega_p^n$. We also show…

Functional Analysis · Mathematics 2014-06-13 Raul Quiroga-Barranco , Armando Sanchez-Nungaray

We construct some inverse-closed algebras of bounded integral operators with operator-valued kernels, acting in spaces of vector-valued functions on locally compact groups. To this end we make systematic use of covariance algebras…

Functional Analysis · Mathematics 2014-08-21 Ingrid Beltita , Daniel Beltita

We study Toeplitz operators on the Bargmann space, with Toeplitz symbols that are exponentials of inhomogeneous quadratic polynomials. It is shown that the boundedness of such operators is implied by the boundedness of the corresponding…

Functional Analysis · Mathematics 2019-07-16 Lewis Coburn , Michael Hitrik , Johannes Sjoestrand , Francis White

In this article, we state the Bohr-Sommerfeld conditions around a singular value of hyperbolic type of the principal symbol of a self-adjoint semiclassical Toeplitz operator on a compact connected K\"{a}hler surface. These conditions allow…

Spectral Theory · Mathematics 2016-01-20 Yohann Le Floch