{"title":"关于几乎bs -紧算子类中的支配问题的一个开放问题","authors":"Mohamed Hajji","doi":"10.1007/s13370-025-01300-1","DOIUrl":null,"url":null,"abstract":"<div><p>The goal of this note is to give a positive answer to the problem 4.11 in [<i>Almost BS-compact operators and domination problem, Mediterr. J. Math.</i> 18, 258 (2021)]. More precisely, we proved that if a positive operator <i>R</i> on a Banach lattice <i>E</i> is dominated by an almost <i>BS</i>-compact operator <span>\\(T: E \\rightarrow E\\)</span>, then <span>\\(R^2\\)</span> is almost <i>BS</i>-compact.</p></div>","PeriodicalId":46107,"journal":{"name":"Afrika Matematika","volume":"36 2","pages":""},"PeriodicalIF":0.9000,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"On an open question concerning the domination problem in the class of almost BS-compact operators\",\"authors\":\"Mohamed Hajji\",\"doi\":\"10.1007/s13370-025-01300-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The goal of this note is to give a positive answer to the problem 4.11 in [<i>Almost BS-compact operators and domination problem, Mediterr. J. Math.</i> 18, 258 (2021)]. More precisely, we proved that if a positive operator <i>R</i> on a Banach lattice <i>E</i> is dominated by an almost <i>BS</i>-compact operator <span>\\\\(T: E \\\\rightarrow E\\\\)</span>, then <span>\\\\(R^2\\\\)</span> is almost <i>BS</i>-compact.</p></div>\",\"PeriodicalId\":46107,\"journal\":{\"name\":\"Afrika Matematika\",\"volume\":\"36 2\",\"pages\":\"\"},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2025-04-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Afrika Matematika\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s13370-025-01300-1\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATHEMATICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Afrika Matematika","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1007/s13370-025-01300-1","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 0
摘要
本论文的目的是给出[Almost BS-compact operators and domination problem, Mediterr.J. Math.18, 258 (2021)].更准确地说,我们证明了如果巴拿赫晶格 E 上的正算子 R 被一个近似 BS-紧密算子 \(T: E \rightarrow E\) 支配,那么 \(R^2\) 就是近似 BS-紧密的。
On an open question concerning the domination problem in the class of almost BS-compact operators
The goal of this note is to give a positive answer to the problem 4.11 in [Almost BS-compact operators and domination problem, Mediterr. J. Math. 18, 258 (2021)]. More precisely, we proved that if a positive operator R on a Banach lattice E is dominated by an almost BS-compact operator \(T: E \rightarrow E\), then \(R^2\) is almost BS-compact.