{"title":"Localization \\(C^*-\\)algebras and index pairing","authors":"Hang Wang, Chaohua Zhang, Dapeng Zhou","doi":"10.1007/s40062-022-00320-z","DOIUrl":null,"url":null,"abstract":"<div><p>Kasparov <i>KK</i>-theory for a pair of <span>\\(C^*\\)</span>-algebras <span>\\((A,\\,B)\\)</span> can be formulated equivalently in terms of the <i>K</i>-theory of Yu’s localization algebra by Dadarlat-Willett-Wu. We investigate the pairings between <i>K</i>-theory <span>\\(K_j(A)\\)</span> and the two notions of <i>KK</i>-theory which are Kasparov <i>KK</i>-theory <span>\\(KK_i(A,B)\\)</span> and the localization algebra description of <span>\\(KK_i(A,B)\\)</span> and show that the two pairings are compatible.</p></div>","PeriodicalId":49034,"journal":{"name":"Journal of Homotopy and Related Structures","volume":"18 1","pages":"1 - 22"},"PeriodicalIF":0.7000,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Homotopy and Related Structures","FirstCategoryId":"100","ListUrlMain":"https://link.springer.com/article/10.1007/s40062-022-00320-z","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: 0
Abstract
Kasparov KK-theory for a pair of \(C^*\)-algebras \((A,\,B)\) can be formulated equivalently in terms of the K-theory of Yu’s localization algebra by Dadarlat-Willett-Wu. We investigate the pairings between K-theory \(K_j(A)\) and the two notions of KK-theory which are Kasparov KK-theory \(KK_i(A,B)\) and the localization algebra description of \(KK_i(A,B)\) and show that the two pairings are compatible.
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.