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Let $\nu$ be a rotation invariant Borel probability measure on the complex plane having moments of all orders. Given a positive integer $q$, it is proved that the space of $\nu$-square integrable $q$-analytic functions is the closure of…

Complex Variables · Mathematics 2019-01-08 Hicham Hachadi , El Hassan Youssfi

It is known that the hyperbolic plane admits a countable infinity of compactifications into a closed disk such that the isometric action of SL(2;R) acts analytically on the compactified space. We prove that among those compactifications,…

Metric Geometry · Mathematics 2009-01-05 Benoit Kloeckner

The main objects under study are quotients of multiplier algebras of certain complete Nevanlinna--Pick spaces, examples of which include the Drury--Arveson space on the ball and the Dirichlet space on the disc. We are particularly…

Operator Algebras · Mathematics 2019-12-24 Raphaël Clouâtre , Edward J. Timko

We investigate multipliers on the space of holomorphic functions $H(\Omega)$, where $\Omega \subset \mathbb{C}^n$ is an open set. For Runge domains, we characterize these multipliers as convolutions with analytic functionals. Additionally,…

Functional Analysis · Mathematics 2025-09-24 Maria Trybuła

Given a pivotal module category over a spherical fusion category, we introduce the encircling module, a module over the fusion algebra defined using the pivotal structure, and prove that it is isomorphic to the NIM-rep as a fusion algebra…

Quantum Algebra · Mathematics 2026-03-25 Alastair King , Leonard Hardiman

Let $\mathbb B_n$ be the open unit ball in $\mathbb C^n$. We characterize the spectra of pointwise multipliers $M_u$ acting on Banach spaces of analytic functions on $\mathbb B_n$ satisfying some general conditions. These spaces include…

Functional Analysis · Mathematics 2020-02-18 Mikael Lindström , Santeri Miihkinen , David Norrbo

We define a spinor Abelian variety $S_{\Delta}$ to be a complex Abelian variety whose tangent space at the origin is a space of spinors for a suitable complex Clifford algebra $\mathbb{C}_{q}(V)$. We examine intrinsic properties of such…

Algebraic Geometry · Mathematics 2025-10-24 Ivona Grzegorczyk , Ricardo Suarez

The paper presents a survey over frame multipliers and related concepts. In particular, it includes a short motivation of why multipliers are of interest to consider, a review as well as extension of recent results, devoted to the…

Functional Analysis · Mathematics 2020-09-11 Diana T. Stoeva , Peter Balazs

We show: 1) The existence of the first twisted Hilbert space that is not isomorphic to its dual; this solves a problem posed by Cabello in [Nonlinear centralizers in homology, Math. Ann. 358 (2014), no. 3-4, 779-798]. 2) The existence of a…

Functional Analysis · Mathematics 2026-03-25 J. M. F. Castillo , W. H. G. Corrêa

In this paper, we give a relation between the Hilbert multiplicity and the irreducible multiplicity. As an application, we characterize Ulrich modules in term of the irreducible multiplicity.

Commutative Algebra · Mathematics 2021-09-03 Tran Nguyen An , Shinya Kumashiro

This work characterizes the multipliers on vector-valued Hardy spaces over the infinite polydisk and the infinite polytorus, as well as in the context of Dirichlet series. Unlike the scalar-valued setting, where these frameworks are…

Functional Analysis · Mathematics 2025-12-05 Jorge Antezana , Daniel Carando , Tomás Fernández Vidal , Melisa Scotti

The space of based loops in $SL_n(\mathbb{C})$, also known as the affine Grassmannian of $SL_n(\mathbb{C})$, admits an $\mathbb{E}_2$ or fusion product. Work of Mitchell and Richter proves that this based loop space stably splits as an…

Algebraic Topology · Mathematics 2019-05-02 Jeremy Hahn , Allen Yuan

In this paper, we study properties of the bilinear multiplier space. We give a necessary condition for a continuous integrable function to be a bilinear multiplier on variable exponent Lebesgue spaces. And we prove the localization theorem…

Classical Analysis and ODEs · Mathematics 2014-07-09 Jineng Ren , Wenchang Sun

This paper is a survey on major results on Hilbert functions of multigraded algebras and mixed multiplicities of ideals, including their applications to the computation of Milnor numbers of complex analytic hypersurfaces with isolated…

Commutative Algebra · Mathematics 2008-02-19 N. V. Trung , J. K. Verma

We consider Hilbert algebras with a supplementary Fr\'echet topology and get various extensions of the algebraic structure by using duality techniques. In particular we obtain optimal multiplier-type involutive algebras, which in…

Functional Analysis · Mathematics 2015-01-30 M. Mantoiu , R. Purice

We develop a structural classification of multipliers between generalized Toeplitz kernels, extending the work of Fricain and Rupam. Our results establish new equivalences between multiplier space and Carleson-type embeddings, linking them…

Functional Analysis · Mathematics 2025-07-15 Anjali , R. K. Srivastava

We consider various Hilbert spaces of Dirichlet series whose norms are given by weighted $\ell^2$ norms of the Dirichlet coefficients. We characterize the multiplier algebras for some of these spaces.

Functional Analysis · Mathematics 2007-05-23 John E. McCarthy

$SRA$-free spaces is a wide class of metric spaces including finite dimensional Alexandrov spaces of non-negative curvature, complete Berwald spaces of nonnegative flag curvature, Cayley Graphs of virtually abelian groups and doubling…

Metric Geometry · Mathematics 2019-06-07 Vladimir Zolotov

This paper mainly concerns the biholomorphic invariance of $p$-essential normality of Hilbert modules on bounded symmetric domains. By establishing new integral formulas concerning rational function kernels for the Taylor functional…

Functional Analysis · Mathematics 2024-01-02 Lijia Ding

Let S be a finitely generated standard multi-graded algebra over a Noetherian local ring A. This paper first expresses mixed multiplicities of S in term of Hilbert-Samuel multiplicity that explained the mixed multiplicities S as the…

Commutative Algebra · Mathematics 2009-02-10 Duong Quoc Viet , Truong Thi Hong Thanh
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