Abeer A. Al Dohiman, Mohamed Amine Aouichaoui, Sid Ahmed Ould Ahmed Mahmoud
{"title":"Structure and applications of n-quasi exponentially m-isometric operators","authors":"Abeer A. Al Dohiman, Mohamed Amine Aouichaoui, Sid Ahmed Ould Ahmed Mahmoud","doi":"10.1007/s43036-025-00445-x","DOIUrl":null,"url":null,"abstract":"<div><p>In this paper, we aim to extend the established theory of exponentially <i>m</i>-isometric operators by introducing and exploring the concept of <i>n</i>-quasi-exponentially m-isometric operators. This generalization allows us to investigate a broader class of operators. We provide a comprehensive analysis of various key properties of these operators, which are illustrated through specific matrix representations. An examination of their spectral properties is also provided. The open questions presented at the end pave the way for further research and the continued advancement of the theory of <i>m</i>-isometries and related operators.</p></div>","PeriodicalId":44371,"journal":{"name":"Advances in Operator Theory","volume":"10 3","pages":""},"PeriodicalIF":0.8000,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Operator Theory","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1007/s43036-025-00445-x","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
Abstract
In this paper, we aim to extend the established theory of exponentially m-isometric operators by introducing and exploring the concept of n-quasi-exponentially m-isometric operators. This generalization allows us to investigate a broader class of operators. We provide a comprehensive analysis of various key properties of these operators, which are illustrated through specific matrix representations. An examination of their spectral properties is also provided. The open questions presented at the end pave the way for further research and the continued advancement of the theory of m-isometries and related operators.