{"title":"Quasi-categories vs. Segal spaces: Cartesian edition","authors":"Nima Rasekh","doi":"10.1007/s40062-021-00288-2","DOIUrl":null,"url":null,"abstract":"<div><p>We prove that four different ways of defining Cartesian fibrations and the Cartesian model structure are all Quillen equivalent: </p><ol>\n <li>\n <span>1.</span>\n \n <p>On marked simplicial sets (due to Lurie [31]),</p>\n \n </li>\n <li>\n <span>2.</span>\n \n <p>On bisimplicial spaces (due to deBrito [12]),</p>\n \n </li>\n <li>\n <span>3.</span>\n \n <p>On bisimplicial sets,</p>\n \n </li>\n <li>\n <span>4.</span>\n \n <p>On marked simplicial spaces.</p>\n \n </li>\n </ol><p> The main way to prove these equivalences is by using the Quillen equivalences between quasi-categories and complete Segal spaces as defined by Joyal–Tierney and the straightening construction due to Lurie.</p></div>","PeriodicalId":49034,"journal":{"name":"Journal of Homotopy and Related Structures","volume":"16 4","pages":"563 - 604"},"PeriodicalIF":0.7000,"publicationDate":"2021-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s40062-021-00288-2","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Homotopy and Related Structures","FirstCategoryId":"100","ListUrlMain":"https://link.springer.com/article/10.1007/s40062-021-00288-2","RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 7
Abstract
We prove that four different ways of defining Cartesian fibrations and the Cartesian model structure are all Quillen equivalent:
1.
On marked simplicial sets (due to Lurie [31]),
2.
On bisimplicial spaces (due to deBrito [12]),
3.
On bisimplicial sets,
4.
On marked simplicial spaces.
The main way to prove these equivalences is by using the Quillen equivalences between quasi-categories and complete Segal spaces as defined by Joyal–Tierney and the straightening construction due to Lurie.
期刊介绍:
Journal of Homotopy and Related Structures (JHRS) is a fully refereed international journal dealing with homotopy and related structures of mathematical and physical sciences.
Journal of Homotopy and Related Structures is intended to publish papers on
Homotopy in the broad sense and its related areas like Homological and homotopical algebra, K-theory, topology of manifolds, geometric and categorical structures, homology theories, topological groups and algebras, stable homotopy theory, group actions, algebraic varieties, category theory, cobordism theory, controlled topology, noncommutative geometry, motivic cohomology, differential topology, algebraic geometry.