{"title":"T^*Gr(2,4)$库仑分支的倾斜发生器","authors":"Aiden Suter, Ben Webster","doi":"arxiv-2409.01379","DOIUrl":null,"url":null,"abstract":"Remarkable work of Kaledin, based on earlier joint work with Bezrukavnikov,\nhas constructed a tilting generator of the category of coherent sheaves on a\nvery general class of symplectic resolutions of singularities. In this paper, we give a concrete construction of this tilting generator on\nthe cotangent bundle of $Gr(2,4)$, the Grassmannian of 2-planes in\n$\\mathbb{C}^4$. This construction builds on work of the second author\ndescribing these tilting bundles in terms of KLRW algebras, but in this\nlow-dimensional case, we are able to describe our tilting generator as a sum of\ngeometrically natural bundles on $T^*Gr(2,4)$: line bundles and their\nextensions, as well as the tautological bundle and its perpendicular.","PeriodicalId":501038,"journal":{"name":"arXiv - MATH - Representation Theory","volume":"11 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Tilting Generator for the $T^*Gr(2,4)$ Coulomb Branch\",\"authors\":\"Aiden Suter, Ben Webster\",\"doi\":\"arxiv-2409.01379\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Remarkable work of Kaledin, based on earlier joint work with Bezrukavnikov,\\nhas constructed a tilting generator of the category of coherent sheaves on a\\nvery general class of symplectic resolutions of singularities. In this paper, we give a concrete construction of this tilting generator on\\nthe cotangent bundle of $Gr(2,4)$, the Grassmannian of 2-planes in\\n$\\\\mathbb{C}^4$. This construction builds on work of the second author\\ndescribing these tilting bundles in terms of KLRW algebras, but in this\\nlow-dimensional case, we are able to describe our tilting generator as a sum of\\ngeometrically natural bundles on $T^*Gr(2,4)$: line bundles and their\\nextensions, as well as the tautological bundle and its perpendicular.\",\"PeriodicalId\":501038,\"journal\":{\"name\":\"arXiv - MATH - Representation Theory\",\"volume\":\"11 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - MATH - Representation Theory\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.01379\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - MATH - Representation Theory","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.01379","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Tilting Generator for the $T^*Gr(2,4)$ Coulomb Branch
Remarkable work of Kaledin, based on earlier joint work with Bezrukavnikov,
has constructed a tilting generator of the category of coherent sheaves on a
very general class of symplectic resolutions of singularities. In this paper, we give a concrete construction of this tilting generator on
the cotangent bundle of $Gr(2,4)$, the Grassmannian of 2-planes in
$\mathbb{C}^4$. This construction builds on work of the second author
describing these tilting bundles in terms of KLRW algebras, but in this
low-dimensional case, we are able to describe our tilting generator as a sum of
geometrically natural bundles on $T^*Gr(2,4)$: line bundles and their
extensions, as well as the tautological bundle and its perpendicular.