{"title":"Canonical models of adjoint foliated structures on surfaces","authors":"Jun Lu, Xiaohang Wu, Shi Xu","doi":"10.1112/jlms.70622","DOIUrl":null,"url":null,"abstract":"<p>In this paper, we study adjoint foliated structures of the form <span></span><math>\n <semantics>\n <mrow>\n <msub>\n <mi>K</mi>\n <mi>F</mi>\n </msub>\n <mo>+</mo>\n <mi>D</mi>\n </mrow>\n <annotation>$K_{\\mathcal {F}}+D$</annotation>\n </semantics></math> on algebraic surfaces and their minimal and canonical models. We investigate the effective behavior of the linear systems <span></span><math>\n <semantics>\n <mrow>\n <mo>|</mo>\n <mi>m</mi>\n <mo>(</mo>\n <msub>\n <mi>K</mi>\n <mi>F</mi>\n </msub>\n <mo>+</mo>\n <mi>D</mi>\n <mo>)</mo>\n <mo>|</mo>\n </mrow>\n <annotation>$|m(K_{\\mathcal {F}}+D)|$</annotation>\n </semantics></math> for sufficiently divisible <span></span><math>\n <semantics>\n <mrow>\n <mi>m</mi>\n <mo>></mo>\n <mn>0</mn>\n </mrow>\n <annotation>$m>0$</annotation>\n </semantics></math>. As an application, we obtain an effective answer to a boundedness problem for foliated surfaces of general type posed by Hacon and Langer.</p>","PeriodicalId":49989,"journal":{"name":"Journal of the London Mathematical Society-Second Series","volume":"114 1","pages":""},"PeriodicalIF":1.4000,"publicationDate":"2026-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the London Mathematical Society-Second Series","FirstCategoryId":"100","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1112/jlms.70622","RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, we study adjoint foliated structures of the form on algebraic surfaces and their minimal and canonical models. We investigate the effective behavior of the linear systems for sufficiently divisible . As an application, we obtain an effective answer to a boundedness problem for foliated surfaces of general type posed by Hacon and Langer.
期刊介绍:
The Journal of the London Mathematical Society has been publishing leading research in a broad range of mathematical subject areas since 1926. The Journal welcomes papers on subjects of general interest that represent a significant advance in mathematical knowledge, as well as submissions that are deemed to stimulate new interest and research activity.