{"title":"Quasi-Baer $ * $ -Ring Characterization of Leavitt Path Algebras","authors":"M. Ahmadi, A. Moussavi","doi":"10.1134/s0037446624030145","DOIUrl":null,"url":null,"abstract":"<p>We say that a graded ring (<span>\\( * \\)</span>-ring) <span>\\( R \\)</span> is a graded quasi-Baer ring (graded quasi-Baer <span>\\( * \\)</span>-ring)\nif, for each graded ideal <span>\\( I \\)</span> of <span>\\( R \\)</span>, the right annihilator of <span>\\( I \\)</span> is generated by a homogeneous idempotent (projection).\nWe prove that a Leavitt path\nalgebra is quasi-Baer (quasi-Baer <span>\\( * \\)</span>) if and only if it is graded quasi-Baer (graded quasi-Baer <span>\\( * \\)</span>).\nWe show that a Leavitt path algebra is quasi-Baer (quasi-Baer <span>\\( * \\)</span>) if its zero component is quasi-Baer (quasi-Baer <span>\\( * \\)</span>).\nHowever, we give some example that showing that the converse implication fails.\nFinally, we characterize the Leavitt path algebras that are quasi-Baer <span>\\( * \\)</span>-rings\nin terms of the properties of the underlying graph.</p>","PeriodicalId":0,"journal":{"name":"","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1134/s0037446624030145","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
We say that a graded ring (\( * \)-ring) \( R \) is a graded quasi-Baer ring (graded quasi-Baer \( * \)-ring)
if, for each graded ideal \( I \) of \( R \), the right annihilator of \( I \) is generated by a homogeneous idempotent (projection).
We prove that a Leavitt path
algebra is quasi-Baer (quasi-Baer \( * \)) if and only if it is graded quasi-Baer (graded quasi-Baer \( * \)).
We show that a Leavitt path algebra is quasi-Baer (quasi-Baer \( * \)) if its zero component is quasi-Baer (quasi-Baer \( * \)).
However, we give some example that showing that the converse implication fails.
Finally, we characterize the Leavitt path algebras that are quasi-Baer \( * \)-rings
in terms of the properties of the underlying graph.