{"title":"用Specht表示的Berezin数不等式","authors":"M. Gürdal, Hamdullah Basaran","doi":"10.31202/ecjse.1131830","DOIUrl":null,"url":null,"abstract":"Smooth functions are associated with operators on Hilbert spaces of analytic functions through the Berezin transform. The Berezin symbol and the Berezin number of an operator A on the Hilbert functional space H(Ω) over some set Ω with the reproducing kernel are defined, respectively, by \nA ̃(μ)=〈A K_μ/K_μ ,K_μ/K_μ 〉,μ∈Ω and ber(A)=sup┬(μ∈Ω)|A ̃(μ)|. \nBy using this bounded function A ̃, we present some new Berezin number inequalities of Hilbert functional space operators. Some inequalities with respect to Specht's ratio are improved and generalized. Using these modifications, we also establish various new inequalities for the Berezin radius and Berezin norm of operators.","PeriodicalId":11622,"journal":{"name":"El-Cezeri Fen ve Mühendislik Dergisi","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2022-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Berezin number inequalities in terms of Specht's\",\"authors\":\"M. Gürdal, Hamdullah Basaran\",\"doi\":\"10.31202/ecjse.1131830\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Smooth functions are associated with operators on Hilbert spaces of analytic functions through the Berezin transform. The Berezin symbol and the Berezin number of an operator A on the Hilbert functional space H(Ω) over some set Ω with the reproducing kernel are defined, respectively, by \\nA ̃(μ)=〈A K_μ/K_μ ,K_μ/K_μ 〉,μ∈Ω and ber(A)=sup┬(μ∈Ω)|A ̃(μ)|. \\nBy using this bounded function A ̃, we present some new Berezin number inequalities of Hilbert functional space operators. Some inequalities with respect to Specht's ratio are improved and generalized. Using these modifications, we also establish various new inequalities for the Berezin radius and Berezin norm of operators.\",\"PeriodicalId\":11622,\"journal\":{\"name\":\"El-Cezeri Fen ve Mühendislik Dergisi\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-09-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"El-Cezeri Fen ve Mühendislik Dergisi\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.31202/ecjse.1131830\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"El-Cezeri Fen ve Mühendislik Dergisi","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.31202/ecjse.1131830","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
通过Berezin变换将光滑函数与解析函数的Hilbert空间上的算子联系起来。在具有再现核的集Ω上Hilbert泛函空间H(Ω)上的算子A的Berezin符号和Berezin数分别定义为:A Ω (μ)= < A K_μ/K_μ,K_μ/K_μ >,μ∈Ω和ber(A)=sup (μ∈Ω)²|A Ω (μ)|。利用这个有界函数,给出了Hilbert泛函空间算子的一些新的Berezin数不等式。改进并推广了关于Specht比值的一些不等式。利用这些修正,我们还建立了算子的Berezin半径和Berezin范数的各种新的不等式。
Smooth functions are associated with operators on Hilbert spaces of analytic functions through the Berezin transform. The Berezin symbol and the Berezin number of an operator A on the Hilbert functional space H(Ω) over some set Ω with the reproducing kernel are defined, respectively, by
A ̃(μ)=〈A K_μ/K_μ ,K_μ/K_μ 〉,μ∈Ω and ber(A)=sup┬(μ∈Ω)|A ̃(μ)|.
By using this bounded function A ̃, we present some new Berezin number inequalities of Hilbert functional space operators. Some inequalities with respect to Specht's ratio are improved and generalized. Using these modifications, we also establish various new inequalities for the Berezin radius and Berezin norm of operators.