{"title":"Normality of algebras over commutative rings and the Teichmüller class. III.","authors":"Johannes Huebschmann","doi":"10.1007/s40062-017-0175-1","DOIUrl":null,"url":null,"abstract":"<p>We describe various non-trivial examples that illustrate the approach to the “Teichmüller cocycle map” developed elsewhere in terms of crossed 2-fold extensions and generalizations thereof.</p>","PeriodicalId":636,"journal":{"name":"Journal of Homotopy and Related Structures","volume":"13 1","pages":"127 - 142"},"PeriodicalIF":0.5000,"publicationDate":"2017-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s40062-017-0175-1","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Homotopy and Related Structures","FirstCategoryId":"100","ListUrlMain":"https://link.springer.com/article/10.1007/s40062-017-0175-1","RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
We describe various non-trivial examples that illustrate the approach to the “Teichmüller cocycle map” developed elsewhere in terms of crossed 2-fold extensions and generalizations thereof.
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.