{"title":"一类特殊的正规三角矩阵环","authors":"Lixin Mao","doi":"10.1007/s40840-024-01717-0","DOIUrl":null,"url":null,"abstract":"<p>Let <span>\\(T=\\biggl (\\begin{matrix} R&{}0\\\\ C&{}S \\end{matrix}\\biggr )\\)</span> be a formal triangular matrix ring with <i>C</i> a semidualizing (<i>S</i>, <i>R</i>)-bimodule. It is proven that (1) A left <i>S</i>-module <i>M</i> in Bass class is <i>C</i>-torsionless (resp. <i>C</i>-reflexive) if and only if <span>\\(\\biggl (\\begin{array}{c} \\textrm{Hom}_{S}(C,M)\\\\ M \\end{array}\\biggr )\\)</span> is a torsionless (resp. reflexive) left <i>T</i>-module; (2) A left <i>S</i>-module <i>M</i> in Bass class is <i>C</i>-Gorenstein projective if and only if <span>\\(\\biggl (\\begin{array}{c} \\textrm{Hom}_{S}(C,M)\\\\ M\\end{array}\\biggr )\\)</span> is a Gorenstein projective left <i>T</i>-module; (3) If <i>C</i> is a faithfully semidualizing (<i>S</i>, <i>R</i>)-bimodule, then a left <i>S</i>-module <i>M</i> is <i>C</i>-<i>n</i>-tilting if and only if <span>\\(\\biggl (\\begin{array}{c}\\textrm{Hom}_{S}(C,M)\\\\ S\\oplus M\\end{array}\\biggr )\\)</span> is an <i>n</i>-tilting left <i>T</i>-module.</p>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A class of special formal triangular matrix rings\",\"authors\":\"Lixin Mao\",\"doi\":\"10.1007/s40840-024-01717-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Let <span>\\\\(T=\\\\biggl (\\\\begin{matrix} R&{}0\\\\\\\\ C&{}S \\\\end{matrix}\\\\biggr )\\\\)</span> be a formal triangular matrix ring with <i>C</i> a semidualizing (<i>S</i>, <i>R</i>)-bimodule. It is proven that (1) A left <i>S</i>-module <i>M</i> in Bass class is <i>C</i>-torsionless (resp. <i>C</i>-reflexive) if and only if <span>\\\\(\\\\biggl (\\\\begin{array}{c} \\\\textrm{Hom}_{S}(C,M)\\\\\\\\ M \\\\end{array}\\\\biggr )\\\\)</span> is a torsionless (resp. reflexive) left <i>T</i>-module; (2) A left <i>S</i>-module <i>M</i> in Bass class is <i>C</i>-Gorenstein projective if and only if <span>\\\\(\\\\biggl (\\\\begin{array}{c} \\\\textrm{Hom}_{S}(C,M)\\\\\\\\ M\\\\end{array}\\\\biggr )\\\\)</span> is a Gorenstein projective left <i>T</i>-module; (3) If <i>C</i> is a faithfully semidualizing (<i>S</i>, <i>R</i>)-bimodule, then a left <i>S</i>-module <i>M</i> is <i>C</i>-<i>n</i>-tilting if and only if <span>\\\\(\\\\biggl (\\\\begin{array}{c}\\\\textrm{Hom}_{S}(C,M)\\\\\\\\ S\\\\oplus M\\\\end{array}\\\\biggr )\\\\)</span> is an <i>n</i>-tilting left <i>T</i>-module.</p>\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2024-06-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"100\",\"ListUrlMain\":\"https://doi.org/10.1007/s40840-024-01717-0\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1007/s40840-024-01717-0","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
摘要
让(T=\biggl (\begin{matrix} R&{}0\ C&{}S \end{matrix}\biggr )\)是一个形式化三角形矩阵环,其中 C 是一个半双化(S,R)-二元模块。证明了 (1) 当且仅当\(\biggl (\begin{array}{c})\(2) Bass 类中的左 S 模块 M 是 C-Gorenstein 投射的,当且仅当(\biggl (\begin{array}{c} )是一个无扭(或者说反向)左 T 模块;(2)当且仅当(\biggl (\begin{array}{c} )是一个无扭(或者说反向)左 T 模块时,Bass 类中的左 S 模块 M 是 C-Gorenstein 投射的。\M\end{array}\biggr )是一个戈伦斯坦投影左 T 模块;(3) 如果 C 是一个忠实的半偶化(S,R)-二元模块,那么当且仅当(\biggl (\begin{array}{c}\textrm{Hom}_{S}(C,M)\ S\oplus M\end{array}\biggr ))是一个 n-tilting 左 T 模块时,左 S 模块 M 是 C-n-tilting 的。
Let \(T=\biggl (\begin{matrix} R&{}0\\ C&{}S \end{matrix}\biggr )\) be a formal triangular matrix ring with C a semidualizing (S, R)-bimodule. It is proven that (1) A left S-module M in Bass class is C-torsionless (resp. C-reflexive) if and only if \(\biggl (\begin{array}{c} \textrm{Hom}_{S}(C,M)\\ M \end{array}\biggr )\) is a torsionless (resp. reflexive) left T-module; (2) A left S-module M in Bass class is C-Gorenstein projective if and only if \(\biggl (\begin{array}{c} \textrm{Hom}_{S}(C,M)\\ M\end{array}\biggr )\) is a Gorenstein projective left T-module; (3) If C is a faithfully semidualizing (S, R)-bimodule, then a left S-module M is C-n-tilting if and only if \(\biggl (\begin{array}{c}\textrm{Hom}_{S}(C,M)\\ S\oplus M\end{array}\biggr )\) is an n-tilting left T-module.
期刊介绍:
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