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Related papers: Interpolation and Balls in C^k

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We study real interpolation, but instead of interpolating between Banach spaces, we interpolate between general functions taking values in $[0,\infty].$ We show the equivalence of the mean method and the $K$-method and apply the general…

Functional Analysis · Mathematics 2022-06-28 Ralph Chill , Praveen Sharma , Sachi Srivastava

We examine the group of isometries of the open unit ball of a complex Banach space of certain bounded linear operators equipped with the Carath\'eodory metric. Therein we obtain a charactrization of the normal isometries in terms of their…

Functional Analysis · Mathematics 2023-03-08 Rachna Aggarwal , Krishnendu Gongopadhyay , Mukund Madhav Mishra

Given a domain $\Omega$ in $\mathbb{C}^n$ and a collection of test functions $\Psi$ on $\Omega$, we consider the complex-valued $\Psi$-Schur-Agler class associated to the pair $(\Omega,\,\Psi)$. In this article, we characterize…

Functional Analysis · Mathematics 2021-04-13 Anindya Biswas , Vikramjeet Singh Chandel

We prove the stability of isomorphisms between Banach spaces generated by interpolation methods introduced by Cwikel-Kalton-Milman-Rochberg which includes, as special cases, the real and complex methods up to equivalence of norms and also…

Functional Analysis · Mathematics 2020-08-04 Irina Asekritova , Natan Kruglyak , Mieczysław Mastyło

Can polynomial interpolation be extended to a Banach space setting? Are tensors whose elements are non-commutative Banach space elements legitimate objects with notable analytic and algebraic properties? Here we explore these questions and…

General Mathematics · Mathematics 2023-09-14 Sidney Edwards

In this article, we will give a characterization of Banach bimodules over $C^*$-algebras of compact operators that arises from operator spaces as well as a characterization of (F)-Banach bundles amongst all (H)-Banach bundles over a…

Operator Algebras · Mathematics 2007-05-23 Chi-Keung Ng

We give a characterization of the ''uniform closure'' of the dual of a $C^{*}$-algebra. Some applications in harmonic analysis are given.

Operator Algebras · Mathematics 2007-05-23 Massoud Amini

We discuss the geometry of Banach spaces whose norm is octahedral or, more generally, locally or weakly octahedral. Our main results characterize these spaces in terms of covering of the unit ball.

Functional Analysis · Mathematics 2014-10-15 Rainis Haller , Johann Langemets

We introduce the notion of a (noncommutative) C*-Segal algebra as a Banach algebra which is a dense ideal in a C*-algebra. Several basic properties are investigated and, with the aid of the theory of multiplier modules, the structure of…

Operator Algebras · Mathematics 2012-09-25 Jukka Kauppi , Martin Mathieu

We prove the version of interpolation theorem for non-commutative vector-valued fully symmetric spaces associated with fully symmetric Banach function spaces and a von Neumann algebra equipped with a faithful semifinite normal trace.

Operator Algebras · Mathematics 2013-11-26 V. I. Chilin , A. K. Karimov

We develop a discrete framework for the interpolation of Banach spaces, which contains the well-known real and complex interpolation methods, but also more recent methods like the Rademacher, $\gamma$- and $\ell^q$-interpolation methods.…

Functional Analysis · Mathematics 2025-08-12 Nick Lindemulder , Emiel Lorist

We present the abstract framework and some applications of interpolation theory. The main new result concerns interpolation between H^1 and L^p estimates for analytic families of operators acting on Schwartz functions.

Classical Analysis and ODEs · Mathematics 2013-01-08 Pavel Zorin-Kranich

The use of the properties of actions on an algebra to enrich the study of the algebra is well-trodden and still fashionable. Here, the notion and study of endomorphic elements of (Banach) algebras are introduced. This study is initiated, in…

Functional Analysis · Mathematics 2016-09-07 V. A. Babalola

In this thesis we explore the the possibility of characterising C* algebras by their (non-isometric) Banach algebra structure alone. We introduce a property of Banach algebras, the Total Reduction Property, and conjecture that a Banach…

Operator Algebras · Mathematics 2013-11-18 James A Gifford

This book treats: - spectral theory of Banach *-algebras, - basic representation theory of normed *-algebras, - spectral theory of representations of commutative *-algebras. A novel feature of the book is the construction of the enveloping…

Operator Algebras · Mathematics 2025-02-18 Marco Thill

The aim of this paper is to apply an extrapolation result without relying on convexification. We characterize ball Banach function spaces in terms of wavelets, formulated in a way that takes into account the smoothness properties of the…

Functional Analysis · Mathematics 2025-06-03 Mitsuo Izuki , Takahiro Noi , Yoshihiro Sawano

Let $\cal M$ be a Banach C*-module over a C*-algebra $A$ carrying two $A$-valued inner products $< .,. >_1$, $<.,. >_2$ which induce equivalent to the given one norms on $\cal M$. Then the appropriate unital C*-algebras of adjointable…

funct-an · Mathematics 2025-05-08 Michael Frank

This book treats: - spectral theory of Banach *-algebras, - basic representation theory of normed *-algebras, - spectral theory of representations of commutative *-algebras. A novel feature of the book is the construction of the enveloping…

Representation Theory · Mathematics 2007-05-23 Marco Thill

In this short note, we first consider some inequalities for comparison of some algebraic properties of two continuous algebra-multiplications on an arbitrary Banach space and then, as an application, we consider some very basic observations…

Functional Analysis · Mathematics 2019-07-24 Maysam Maysami Sadr

We investigate the Pick problem for the polydisk and unit ball using dual algebra techniques. Some factorization results for Bergman spaces are used to describe a Pick theorem for any bounded region in $\mathbb{C}^d$.

Functional Analysis · Mathematics 2011-10-06 Ryan Hamilton
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