{"title":"扭力副与t型结构 \\(\\textrm{D}^{b}(\\text {coh}(\\mathbb {X}))\\)","authors":"Edson Ribeiro Alvares, D. D. Silva","doi":"10.1007/s10468-025-10321-0","DOIUrl":null,"url":null,"abstract":"<div><p>We present a bijection between torsion pairs in <span>\\(\\text {coh}(\\mathbb )\\)</span> with corresponding <i>t</i>-structures in <span>\\(\\textrm{D}^{b}(\\text {coh}(\\mathbb {X}))\\)</span> where <span>\\(\\mathbb {X}\\)</span> represents a weighted projective line. When focusing on the split case, we derive a bijection between this class and corresponding torsion pairs in the module category of a concealed canonical algebra. Additionally, we demonstrate that if the aisle of a split t-structure in the derived category of a hereditary category contains an Ext-projective object, then it admits a tilting complex. Finally, we use the structure of the Auslander-Reiten quiver of <span>\\(\\textrm{D}^{b}(\\text {coh}(\\mathbb {X}))\\)</span> in order to classify split t-structures in <span>\\(\\textrm{D}^{b}(\\text {coh}(\\mathbb {X}))\\)</span>.</p></div>","PeriodicalId":50825,"journal":{"name":"Algebras and Representation Theory","volume":"28 2","pages":"407 - 421"},"PeriodicalIF":0.5000,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Torsion Pairs and t-Structures in \\\\(\\\\textrm{D}^{b}(\\\\text {coh}(\\\\mathbb {X}))\\\\)\",\"authors\":\"Edson Ribeiro Alvares, D. D. Silva\",\"doi\":\"10.1007/s10468-025-10321-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>We present a bijection between torsion pairs in <span>\\\\(\\\\text {coh}(\\\\mathbb )\\\\)</span> with corresponding <i>t</i>-structures in <span>\\\\(\\\\textrm{D}^{b}(\\\\text {coh}(\\\\mathbb {X}))\\\\)</span> where <span>\\\\(\\\\mathbb {X}\\\\)</span> represents a weighted projective line. When focusing on the split case, we derive a bijection between this class and corresponding torsion pairs in the module category of a concealed canonical algebra. Additionally, we demonstrate that if the aisle of a split t-structure in the derived category of a hereditary category contains an Ext-projective object, then it admits a tilting complex. Finally, we use the structure of the Auslander-Reiten quiver of <span>\\\\(\\\\textrm{D}^{b}(\\\\text {coh}(\\\\mathbb {X}))\\\\)</span> in order to classify split t-structures in <span>\\\\(\\\\textrm{D}^{b}(\\\\text {coh}(\\\\mathbb {X}))\\\\)</span>.</p></div>\",\"PeriodicalId\":50825,\"journal\":{\"name\":\"Algebras and Representation Theory\",\"volume\":\"28 2\",\"pages\":\"407 - 421\"},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2025-02-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Algebras and Representation Theory\",\"FirstCategoryId\":\"100\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10468-025-10321-0\",\"RegionNum\":4,\"RegionCategory\":\"数学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATHEMATICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Algebras and Representation Theory","FirstCategoryId":"100","ListUrlMain":"https://link.springer.com/article/10.1007/s10468-025-10321-0","RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATHEMATICS","Score":null,"Total":0}
Torsion Pairs and t-Structures in \(\textrm{D}^{b}(\text {coh}(\mathbb {X}))\)
We present a bijection between torsion pairs in \(\text {coh}(\mathbb )\) with corresponding t-structures in \(\textrm{D}^{b}(\text {coh}(\mathbb {X}))\) where \(\mathbb {X}\) represents a weighted projective line. When focusing on the split case, we derive a bijection between this class and corresponding torsion pairs in the module category of a concealed canonical algebra. Additionally, we demonstrate that if the aisle of a split t-structure in the derived category of a hereditary category contains an Ext-projective object, then it admits a tilting complex. Finally, we use the structure of the Auslander-Reiten quiver of \(\textrm{D}^{b}(\text {coh}(\mathbb {X}))\) in order to classify split t-structures in \(\textrm{D}^{b}(\text {coh}(\mathbb {X}))\).
期刊介绍:
Algebras and Representation Theory features carefully refereed papers relating, in its broadest sense, to the structure and representation theory of algebras, including Lie algebras and superalgebras, rings of differential operators, group rings and algebras, C*-algebras and Hopf algebras, with particular emphasis on quantum groups.
The journal contains high level, significant and original research papers, as well as expository survey papers written by specialists who present the state-of-the-art of well-defined subjects or subdomains. Occasionally, special issues on specific subjects are published as well, the latter allowing specialists and non-specialists to quickly get acquainted with new developments and topics within the field of rings, algebras and their applications.