{"title":"Cesàro operators associated with Borel measures acting on weighted spaces of holomorphic functions with sup-norms","authors":"María J. Beltrán-Meneu, José Bonet, Enrique Jordá","doi":"10.1007/s13324-024-00968-1","DOIUrl":null,"url":null,"abstract":"<div><p>Let <span>\\(\\mu \\)</span> be a positive finite Borel measure on [0, 1). Cesàro-type operators <span>\\(C_{\\mu }\\)</span> when acting on weighted spaces of holomorphic functions are investigated. In the case of bounded holomorphic functions on the unit disc we prove that <span>\\(C_\\mu \\)</span> is continuous if and only if it is compact. In the case of weighted Banach spaces of holomorphic function defined by general weights, we give sufficient and necessary conditions for the continuity and compactness. For standard weights, we characterize the continuity and compactness on classical growth Banach spaces of holomorphic functions. We also study the point spectrum and the spectrum of <span>\\(C_\\mu \\)</span> on the space of holomorphic functions on the disc, on the space of bounded holomorphic functions on the disc, and on the classical growth Banach spaces of holomorphic functions. All characterizations are given in terms of the sequence of moments <span>\\((\\mu _n)_{n\\in {\\mathbb {N}}_0}\\)</span>. The continuity, compactness and spectrum of <span>\\(C_\\mu \\)</span> acting on Fréchet and (LB) Korenblum type spaces are also considered .</p></div>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13324-024-00968-1.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"100","ListUrlMain":"https://link.springer.com/article/10.1007/s13324-024-00968-1","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Let \(\mu \) be a positive finite Borel measure on [0, 1). Cesàro-type operators \(C_{\mu }\) when acting on weighted spaces of holomorphic functions are investigated. In the case of bounded holomorphic functions on the unit disc we prove that \(C_\mu \) is continuous if and only if it is compact. In the case of weighted Banach spaces of holomorphic function defined by general weights, we give sufficient and necessary conditions for the continuity and compactness. For standard weights, we characterize the continuity and compactness on classical growth Banach spaces of holomorphic functions. We also study the point spectrum and the spectrum of \(C_\mu \) on the space of holomorphic functions on the disc, on the space of bounded holomorphic functions on the disc, and on the classical growth Banach spaces of holomorphic functions. All characterizations are given in terms of the sequence of moments \((\mu _n)_{n\in {\mathbb {N}}_0}\). The continuity, compactness and spectrum of \(C_\mu \) acting on Fréchet and (LB) Korenblum type spaces are also considered .
期刊介绍:
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
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