{"title":"Geometrically and topologically random surfaces in a closed hyperbolic 3-manifold","authors":"Jeremy Kahn, Vladimir Marković, Ilia Smilga","doi":"10.1112/topo.70068","DOIUrl":null,"url":null,"abstract":"<p>We study the distribution of geometrically and topologically nearly geodesic random surfaces in a closed hyperbolic 3-manifold <span></span><math>\n <semantics>\n <mi>M</mi>\n <annotation>${\\bf {M}}$</annotation>\n </semantics></math>. In particular, we describe <span></span><math>\n <semantics>\n <mrow>\n <mi>PSL</mi>\n <mo>(</mo>\n <mn>2</mn>\n <mo>,</mo>\n <mi>R</mi>\n <mo>)</mo>\n </mrow>\n <annotation>${\\bf {PSL}}(2,\\mathbb {R})$</annotation>\n </semantics></math> invariant measures on the Grassmann bundle <span></span><math>\n <semantics>\n <mrow>\n <msub>\n <mi>G</mi>\n <mn>2</mn>\n </msub>\n <mrow>\n <mo>(</mo>\n <mi>M</mi>\n <mo>)</mo>\n </mrow>\n </mrow>\n <annotation>${\\mathcal {G}}_2({\\bf {M}})$</annotation>\n </semantics></math> which arise as limits of random minimal surfaces. We show that if <span></span><math>\n <semantics>\n <mi>M</mi>\n <annotation>${\\bf {M}}$</annotation>\n </semantics></math> contains at least one totally geodesic subsurface then every topological limiting measure is totally scarring (i.e., supported on the totally geodesic locus), while we prove that geometrical limiting measures are never totally scarring.</p>","PeriodicalId":56114,"journal":{"name":"Journal of Topology","volume":"19 1","pages":""},"PeriodicalIF":1.6000,"publicationDate":"2026-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Topology","FirstCategoryId":"100","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1112/topo.70068","RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 0
Abstract
We study the distribution of geometrically and topologically nearly geodesic random surfaces in a closed hyperbolic 3-manifold . In particular, we describe invariant measures on the Grassmann bundle which arise as limits of random minimal surfaces. We show that if contains at least one totally geodesic subsurface then every topological limiting measure is totally scarring (i.e., supported on the totally geodesic locus), while we prove that geometrical limiting measures are never totally scarring.
期刊介绍:
The Journal of Topology publishes papers of high quality and significance in topology, geometry and adjacent areas of mathematics. Interesting, important and often unexpected links connect topology and geometry with many other parts of mathematics, and the editors welcome submissions on exciting new advances concerning such links, as well as those in the core subject areas of the journal.
The Journal of Topology was founded in 2008. It is published quarterly with articles published individually online prior to appearing in a printed issue.