{"title":"根栈和抛物线连接上的实结构","authors":"Sujoy Chakraborty, Arjun Paul","doi":"10.1007/s10711-023-00880-1","DOIUrl":null,"url":null,"abstract":"<p>Let <i>D</i> be a reduced effective strict normal crossing divisor on a smooth complex variety <i>X</i>, and let <span>\\(\\mathfrak {X}_D\\)</span> be the associated root stack over <span>\\(\\mathbb C\\)</span>. Suppose that <i>X</i> admits an anti-holomorphic involution (real structure) that keeps <i>D</i> invariant. We show that the root stack <span>\\(\\mathfrak {X}_D\\)</span> naturally admits a real structure compatible with <i>X</i>. We also establish an equivalence of categories between the category of real logarithmic connections on this root stack and the category of real parabolic connections on <i>X</i>.\n</p>","PeriodicalId":0,"journal":{"name":"","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Real structures on root stacks and parabolic connections\",\"authors\":\"Sujoy Chakraborty, Arjun Paul\",\"doi\":\"10.1007/s10711-023-00880-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Let <i>D</i> be a reduced effective strict normal crossing divisor on a smooth complex variety <i>X</i>, and let <span>\\\\(\\\\mathfrak {X}_D\\\\)</span> be the associated root stack over <span>\\\\(\\\\mathbb C\\\\)</span>. Suppose that <i>X</i> admits an anti-holomorphic involution (real structure) that keeps <i>D</i> invariant. We show that the root stack <span>\\\\(\\\\mathfrak {X}_D\\\\)</span> naturally admits a real structure compatible with <i>X</i>. We also establish an equivalence of categories between the category of real logarithmic connections on this root stack and the category of real parabolic connections on <i>X</i>.\\n</p>\",\"PeriodicalId\":0,\"journal\":{\"name\":\"\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0,\"publicationDate\":\"2024-01-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"\",\"FirstCategoryId\":\"100\",\"ListUrlMain\":\"https://doi.org/10.1007/s10711-023-00880-1\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1007/s10711-023-00880-1","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
让 D 是光滑复 variety X 上的还原有效严格正交除数,让 \(\mathfrak {X}_D\) 是 \(\mathbb C\) 上的相关根栈。假设 X 允许有一个反全反卷积(实结构)来保持 D 不变。我们将证明根堆栈 \(\mathfrak {X}_D\) 自然包含一个与 X 兼容的实结构。我们还将在这个根堆栈上的实对数连接范畴和 X 上的实抛物线连接范畴之间建立一个等价范畴。
Real structures on root stacks and parabolic connections
Let D be a reduced effective strict normal crossing divisor on a smooth complex variety X, and let \(\mathfrak {X}_D\) be the associated root stack over \(\mathbb C\). Suppose that X admits an anti-holomorphic involution (real structure) that keeps D invariant. We show that the root stack \(\mathfrak {X}_D\) naturally admits a real structure compatible with X. We also establish an equivalence of categories between the category of real logarithmic connections on this root stack and the category of real parabolic connections on X.