{"title":"On the Existence of Equivariant Kähler Models of Certain Compact Complex Spaces","authors":"Jin Hong Kim","doi":"10.1134/s0001434624030271","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p> Let <span>\\(X\\)</span> be a compact complex space in Fujiki’s class <span>\\(\\mathcal{C}\\)</span>. In this paper, we show that <span>\\(X\\)</span> admits a compact Kähler model <span>\\({\\tilde X}\\)</span>, that is, there exists a projective bimeromorphic map <span>\\(\\sigma\\colon\\tilde{X}\\to X\\)</span> from a compact Kähler manifold <span>\\(\\tilde{X}\\)</span> such that the automorphism group <span>\\(\\operatorname{Aut}(X)\\)</span> lifts holomorphically and uniquely to a subgroup of <span>\\(\\operatorname{Aut}({\\tilde X})\\)</span>. As a consequence, we also give a few applications to the Jordan property, the finiteness of torsion groups, and arbitrary large finite abelian subgroups for compact complex spaces in Fujiki’s class <span>\\({\\mathcal C}\\)</span>. </p>","PeriodicalId":18294,"journal":{"name":"Mathematical Notes","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mathematical Notes","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1134/s0001434624030271","RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 0
Abstract
Let \(X\) be a compact complex space in Fujiki’s class \(\mathcal{C}\). In this paper, we show that \(X\) admits a compact Kähler model \({\tilde X}\), that is, there exists a projective bimeromorphic map \(\sigma\colon\tilde{X}\to X\) from a compact Kähler manifold \(\tilde{X}\) such that the automorphism group \(\operatorname{Aut}(X)\) lifts holomorphically and uniquely to a subgroup of \(\operatorname{Aut}({\tilde X})\). As a consequence, we also give a few applications to the Jordan property, the finiteness of torsion groups, and arbitrary large finite abelian subgroups for compact complex spaces in Fujiki’s class \({\mathcal C}\).
Abstract Let \(X\) be a compact complex space in Fujiki's class \(\mathcal{C}\).在本文中,我们证明了 \(X\) 承认一个紧凑的 Kähler 模型 \({\tilde X}\),也就是说、存在一个从紧凑凯勒流形(\tilde{X}\)到 X 的投影双目映射(\sigma\colon\tilde{X}\to X),使得自变群(\(\operatorname{Aut}(X)\) lifts holomorphically and uniquely to a subgroup of \(\operatorname{Aut}({\tilde X})\)。因此,我们还给出了一些关于乔丹性质、扭转群的有限性以及藤木类 \({\mathcal C}\) 中紧凑复空间的任意大有限无边子群的应用。
期刊介绍:
Mathematical Notes is a journal that publishes research papers and review articles in modern algebra, geometry and number theory, functional analysis, logic, set and measure theory, topology, probability and stochastics, differential and noncommutative geometry, operator and group theory, asymptotic and approximation methods, mathematical finance, linear and nonlinear equations, ergodic and spectral theory, operator algebras, and other related theoretical fields. It also presents rigorous results in mathematical physics.