{"title":"获得范数的加权全纯映射","authors":"A. Jiménez-Vargas","doi":"10.1007/s43034-023-00297-7","DOIUrl":null,"url":null,"abstract":"<div><p>Given an open subset <i>U</i> of <span>\\({\\mathbb {C}}^n,\\)</span> a weight <i>v</i> on <i>U</i> and a complex Banach space <i>F</i>, let <span>\\(\\mathcal {H}_v(U,F)\\)</span> denote the Banach space of all weighted holomorphic mappings <span>\\(f:U\\rightarrow F,\\)</span> under the weighted supremum norm <span>\\(\\left\\| f\\right\\| _v:=\\sup \\left\\{ v(z)\\left\\| f(z)\\right\\| :z\\in U\\right\\} .\\)</span> We prove that the set of all mappings <span>\\(f\\in \\mathcal {H}_v(U,F)\\)</span> that attain their weighted supremum norms is norm dense in <span>\\(\\mathcal {H}_v(U,F),\\)</span> provided that the closed unit ball of the little weighted holomorphic space <span>\\(\\mathcal {H}_{v_0}(U,F)\\)</span> is compact-open dense in the closed unit ball of <span>\\(\\mathcal {H}_v(U,F).\\)</span> We also prove a similar result for mappings <span>\\(f\\in \\mathcal {H}_v(U,F)\\)</span> such that <i>vf</i> has a relatively compact range.</p></div>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s43034-023-00297-7.pdf","citationCount":"0","resultStr":"{\"title\":\"Weighted holomorphic mappings attaining their norms\",\"authors\":\"A. Jiménez-Vargas\",\"doi\":\"10.1007/s43034-023-00297-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Given an open subset <i>U</i> of <span>\\\\({\\\\mathbb {C}}^n,\\\\)</span> a weight <i>v</i> on <i>U</i> and a complex Banach space <i>F</i>, let <span>\\\\(\\\\mathcal {H}_v(U,F)\\\\)</span> denote the Banach space of all weighted holomorphic mappings <span>\\\\(f:U\\\\rightarrow F,\\\\)</span> under the weighted supremum norm <span>\\\\(\\\\left\\\\| f\\\\right\\\\| _v:=\\\\sup \\\\left\\\\{ v(z)\\\\left\\\\| f(z)\\\\right\\\\| :z\\\\in U\\\\right\\\\} .\\\\)</span> We prove that the set of all mappings <span>\\\\(f\\\\in \\\\mathcal {H}_v(U,F)\\\\)</span> that attain their weighted supremum norms is norm dense in <span>\\\\(\\\\mathcal {H}_v(U,F),\\\\)</span> provided that the closed unit ball of the little weighted holomorphic space <span>\\\\(\\\\mathcal {H}_{v_0}(U,F)\\\\)</span> is compact-open dense in the closed unit ball of <span>\\\\(\\\\mathcal {H}_v(U,F).\\\\)</span> We also prove a similar result for mappings <span>\\\\(f\\\\in \\\\mathcal {H}_v(U,F)\\\\)</span> such that <i>vf</i> has a relatively compact range.</p></div>\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2023-08-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://link.springer.com/content/pdf/10.1007/s43034-023-00297-7.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"100\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s43034-023-00297-7\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"100","ListUrlMain":"https://link.springer.com/article/10.1007/s43034-023-00297-7","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Weighted holomorphic mappings attaining their norms
Given an open subset U of \({\mathbb {C}}^n,\) a weight v on U and a complex Banach space F, let \(\mathcal {H}_v(U,F)\) denote the Banach space of all weighted holomorphic mappings \(f:U\rightarrow F,\) under the weighted supremum norm \(\left\| f\right\| _v:=\sup \left\{ v(z)\left\| f(z)\right\| :z\in U\right\} .\) We prove that the set of all mappings \(f\in \mathcal {H}_v(U,F)\) that attain their weighted supremum norms is norm dense in \(\mathcal {H}_v(U,F),\) provided that the closed unit ball of the little weighted holomorphic space \(\mathcal {H}_{v_0}(U,F)\) is compact-open dense in the closed unit ball of \(\mathcal {H}_v(U,F).\) We also prove a similar result for mappings \(f\in \mathcal {H}_v(U,F)\) such that vf has a relatively compact range.
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.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.