{"title":"Summand intersection property on c-closed submodules","authors":"Enas Mustafa Kamil","doi":"10.1007/s11565-025-00601-4","DOIUrl":null,"url":null,"abstract":"<div><p>A module <i>C</i> is said to have the SIP when the intersection of any pair of direct summands of <i>C</i> is also a summand of <i>C</i>. In this manuscript, we define (strongly) summand intersection property on c-closed submodules, for short (<span>\\({SSIP}^{c}\\)</span>) <span>\\({SIP}^{c}\\)</span> if and only if the intersection of any pair of c-closed direct summands of <i>C</i> is (fully invariant) summand of <i>C</i>. Also, we introduced strongly CCLS if each c-closed submodule of <i>C</i> is a \"fully invariant summand\". We illustrate the structural features of these modules and locate these implications among some of modules’ properties.</p></div>","PeriodicalId":35009,"journal":{"name":"Annali dell''Universita di Ferrara","volume":"71 3","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annali dell''Universita di Ferrara","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1007/s11565-025-00601-4","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
A module C is said to have the SIP when the intersection of any pair of direct summands of C is also a summand of C. In this manuscript, we define (strongly) summand intersection property on c-closed submodules, for short (\({SSIP}^{c}\)) \({SIP}^{c}\) if and only if the intersection of any pair of c-closed direct summands of C is (fully invariant) summand of C. Also, we introduced strongly CCLS if each c-closed submodule of C is a "fully invariant summand". We illustrate the structural features of these modules and locate these implications among some of modules’ properties.
期刊介绍:
Annali dell''Università di Ferrara is a general mathematical journal publishing high quality papers in all aspects of pure and applied mathematics. After a quick preliminary examination, potentially acceptable contributions will be judged by appropriate international referees. Original research papers are preferred, but well-written surveys on important subjects are also welcome.