{"title":"Boundedness and compactness of Hausdorff operators on Fock spaces","authors":"Óscar Blasco, Antonio Galbis","doi":"10.1090/tran/9133","DOIUrl":null,"url":null,"abstract":"<p>We obtain a complete characterization of the bounded Hausdorff operators acting on a Fock space <inline-formula content-type=\"math/mathml\"> <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" alttext=\"upper F Subscript alpha Superscript p\"> <mml:semantics> <mml:msubsup> <mml:mi>F</mml:mi> <mml:mi>α</mml:mi> <mml:mi>p</mml:mi> </mml:msubsup> <mml:annotation encoding=\"application/x-tex\">F^p_\\alpha</mml:annotation> </mml:semantics> </mml:math> </inline-formula> and taking its values into a larger one <inline-formula content-type=\"math/mathml\"> <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" alttext=\"upper F Subscript alpha Superscript q Baseline comma 0 greater-than p less-than-or-equal-to q less-than-or-equal-to normal infinity\"> <mml:semantics> <mml:mrow> <mml:msubsup> <mml:mi>F</mml:mi> <mml:mi>α</mml:mi> <mml:mi>q</mml:mi> </mml:msubsup> <mml:mo>,</mml:mo> <mml:mtext> </mml:mtext> <mml:mn>0</mml:mn> <mml:mo>></mml:mo> <mml:mi>p</mml:mi> <mml:mo>≤</mml:mo> <mml:mi>q</mml:mi> <mml:mo>≤</mml:mo> <mml:mi mathvariant=\"normal\">∞</mml:mi> </mml:mrow> <mml:annotation encoding=\"application/x-tex\">F^q_\\alpha ,\\ 0 > p \\leq q \\leq \\infty</mml:annotation> </mml:semantics> </mml:math> </inline-formula>, as well as some necessary or sufficient conditions for a Hausdorff operator to transform a Fock space into a smaller one. Some results are written in the context of mixed norm Fock spaces. Also the compactness of Hausdorff operators on a Fock space is characterized. The compactness result for Hausdorff operators on the Fock space <inline-formula content-type=\"math/mathml\"> <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" alttext=\"upper F Subscript alpha Superscript normal infinity\"> <mml:semantics> <mml:msubsup> <mml:mi>F</mml:mi> <mml:mi>α</mml:mi> <mml:mi mathvariant=\"normal\">∞</mml:mi> </mml:msubsup> <mml:annotation encoding=\"application/x-tex\">F^\\infty _\\alpha</mml:annotation> </mml:semantics> </mml:math> </inline-formula> is extended to more general Banach spaces of entire functions with weighted sup norms defined in terms of a radial weight and conditions for the Hausdorff operators to become <inline-formula content-type=\"math/mathml\"> <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" alttext=\"p\"> <mml:semantics> <mml:mi>p</mml:mi> <mml:annotation encoding=\"application/x-tex\">p</mml:annotation> </mml:semantics> </mml:math> </inline-formula>-summing are also included.</p>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1090/tran/9133","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
We obtain a complete characterization of the bounded Hausdorff operators acting on a Fock space FαpF^p_\alpha and taking its values into a larger one Fαq,0>p≤q≤∞F^q_\alpha ,\ 0 > p \leq q \leq \infty, as well as some necessary or sufficient conditions for a Hausdorff operator to transform a Fock space into a smaller one. Some results are written in the context of mixed norm Fock spaces. Also the compactness of Hausdorff operators on a Fock space is characterized. The compactness result for Hausdorff operators on the Fock space Fα∞F^\infty _\alpha is extended to more general Banach spaces of entire functions with weighted sup norms defined in terms of a radial weight and conditions for the Hausdorff operators to become pp-summing are also included.
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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