{"title":"A New Characterization of $$L^2$$ -Domains of Holomorphy with Null Thin Complements via $$L^2$$ -Optimal Conditions","authors":"Zhuo Liu, Xujun Zhang","doi":"10.1007/s12220-024-01738-y","DOIUrl":null,"url":null,"abstract":"<p>In this paper, we show that the <span>\\(L^2\\)</span>-optimal condition implies the <span>\\(L^2\\)</span>-divisibility of <span>\\(L^2\\)</span>-integrable holomorphic functions. As an application, we offer a new characterization of bounded <span>\\(L^2\\)</span>-domains of holomorphy with null thin complements using the <span>\\(L^2\\)</span>-optimal condition, which appears to be advantageous in addressing a problem proposed by Deng-Ning-Wang. Through this characterization, we show that a domain in a Stein manifold with a null thin complement, admitting an exhaustion of complete Kähler domains, remains Stein. By the way, we construct an <span>\\(L^2\\)</span>-optimal domain that does not admit any complete Kähler metric.</p>","PeriodicalId":501200,"journal":{"name":"The Journal of Geometric Analysis","volume":"87 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Journal of Geometric Analysis","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/s12220-024-01738-y","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, we show that the \(L^2\)-optimal condition implies the \(L^2\)-divisibility of \(L^2\)-integrable holomorphic functions. As an application, we offer a new characterization of bounded \(L^2\)-domains of holomorphy with null thin complements using the \(L^2\)-optimal condition, which appears to be advantageous in addressing a problem proposed by Deng-Ning-Wang. Through this characterization, we show that a domain in a Stein manifold with a null thin complement, admitting an exhaustion of complete Kähler domains, remains Stein. By the way, we construct an \(L^2\)-optimal domain that does not admit any complete Kähler metric.