{"title":"伯格曼和布洛赫空间上 Volterra 算子的一些算子理想特性","authors":"Joelle Jreis, Pascal Lefèvre","doi":"10.1007/s00020-023-02742-7","DOIUrl":null,"url":null,"abstract":"<p>We characterize the integration operators <span>\\(V_g\\)</span> with symbol <i>g</i> for which <span>\\(V_g\\)</span> acts as an absolutely summing operator on weighted Bloch spaces <span>\\(\\mathcal {B}^{\\beta }\\)</span> and on weighted Bergman spaces <span>\\(\\mathscr {A}^p_\\alpha \\)</span>. We show that <span>\\(V_g\\)</span> is <i>r</i>-summing on <span>\\(\\mathscr {A}^p_\\alpha \\)</span>, <span>\\(1 \\le p <\\infty \\)</span>, if and only if <i>g</i> belongs to a suitable Besov space. We also show that there is no non trivial nuclear Volterra operators <span>\\(V_g\\)</span> on Bloch spaces and on Bergman spaces.</p>","PeriodicalId":13658,"journal":{"name":"Integral Equations and Operator Theory","volume":"7 1","pages":""},"PeriodicalIF":0.8000,"publicationDate":"2023-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Some Operator Ideal Properties of Volterra Operators on Bergman and Bloch Spaces\",\"authors\":\"Joelle Jreis, Pascal Lefèvre\",\"doi\":\"10.1007/s00020-023-02742-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>We characterize the integration operators <span>\\\\(V_g\\\\)</span> with symbol <i>g</i> for which <span>\\\\(V_g\\\\)</span> acts as an absolutely summing operator on weighted Bloch spaces <span>\\\\(\\\\mathcal {B}^{\\\\beta }\\\\)</span> and on weighted Bergman spaces <span>\\\\(\\\\mathscr {A}^p_\\\\alpha \\\\)</span>. We show that <span>\\\\(V_g\\\\)</span> is <i>r</i>-summing on <span>\\\\(\\\\mathscr {A}^p_\\\\alpha \\\\)</span>, <span>\\\\(1 \\\\le p <\\\\infty \\\\)</span>, if and only if <i>g</i> belongs to a suitable Besov space. We also show that there is no non trivial nuclear Volterra operators <span>\\\\(V_g\\\\)</span> on Bloch spaces and on Bergman spaces.</p>\",\"PeriodicalId\":13658,\"journal\":{\"name\":\"Integral Equations and Operator Theory\",\"volume\":\"7 1\",\"pages\":\"\"},\"PeriodicalIF\":0.8000,\"publicationDate\":\"2023-12-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Integral Equations and Operator Theory\",\"FirstCategoryId\":\"100\",\"ListUrlMain\":\"https://doi.org/10.1007/s00020-023-02742-7\",\"RegionNum\":3,\"RegionCategory\":\"数学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATHEMATICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Integral Equations and Operator Theory","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1007/s00020-023-02742-7","RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATHEMATICS","Score":null,"Total":0}
Some Operator Ideal Properties of Volterra Operators on Bergman and Bloch Spaces
We characterize the integration operators \(V_g\) with symbol g for which \(V_g\) acts as an absolutely summing operator on weighted Bloch spaces \(\mathcal {B}^{\beta }\) and on weighted Bergman spaces \(\mathscr {A}^p_\alpha \). We show that \(V_g\) is r-summing on \(\mathscr {A}^p_\alpha \), \(1 \le p <\infty \), if and only if g belongs to a suitable Besov space. We also show that there is no non trivial nuclear Volterra operators \(V_g\) on Bloch spaces and on Bergman spaces.
期刊介绍:
Integral Equations and Operator Theory (IEOT) is devoted to the publication of current research in integral equations, operator theory and related topics with emphasis on the linear aspects of the theory. The journal reports on the full scope of current developments from abstract theory to numerical methods and applications to analysis, physics, mechanics, engineering and others. The journal consists of two sections: a main section consisting of refereed papers and a second consisting of short announcements of important results, open problems, information, etc.