{"title":"伪评估域中的准二次模组","authors":"Masato Fujita, Masaru Kageyama","doi":"10.1007/s10998-024-00605-1","DOIUrl":null,"url":null,"abstract":"<p>We study quasi-quadratic modules in a pseudo-valuation domain <i>A</i> whose strict units admit a square root. Let <span>\\(\\mathfrak X_R^N\\)</span> denote the set of quasi-quadratic modules in an <i>R</i>-module <i>N</i>, where <i>R</i> is a commutative ring. It is known that there exists a unique overring <i>B</i> of <i>A</i> such that <i>B</i> is a valuation ring with the valuation group <span>\\((G,\\le )\\)</span> and the maximal ideal of <i>B</i> coincides with that of <i>A</i>. Let <i>F</i> be the residue field of <i>B</i>. In the above setting, we found a one-to-one correspondence between <span>\\({\\mathfrak {X}}_A^A\\)</span> and a subset of <span>\\(\\prod _{g \\in G,g \\ge e} {\\mathfrak {X}}_{F_0}^F\\)</span>.</p>","PeriodicalId":0,"journal":{"name":"","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Quasi-quadratic modules in pseudo-valuation domain\",\"authors\":\"Masato Fujita, Masaru Kageyama\",\"doi\":\"10.1007/s10998-024-00605-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>We study quasi-quadratic modules in a pseudo-valuation domain <i>A</i> whose strict units admit a square root. Let <span>\\\\(\\\\mathfrak X_R^N\\\\)</span> denote the set of quasi-quadratic modules in an <i>R</i>-module <i>N</i>, where <i>R</i> is a commutative ring. It is known that there exists a unique overring <i>B</i> of <i>A</i> such that <i>B</i> is a valuation ring with the valuation group <span>\\\\((G,\\\\le )\\\\)</span> and the maximal ideal of <i>B</i> coincides with that of <i>A</i>. Let <i>F</i> be the residue field of <i>B</i>. In the above setting, we found a one-to-one correspondence between <span>\\\\({\\\\mathfrak {X}}_A^A\\\\)</span> and a subset of <span>\\\\(\\\\prod _{g \\\\in G,g \\\\ge e} {\\\\mathfrak {X}}_{F_0}^F\\\\)</span>.</p>\",\"PeriodicalId\":0,\"journal\":{\"name\":\"\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0,\"publicationDate\":\"2024-08-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"\",\"FirstCategoryId\":\"100\",\"ListUrlMain\":\"https://doi.org/10.1007/s10998-024-00605-1\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1007/s10998-024-00605-1","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
我们研究伪估值域 A 中的准二次模组,其严格单元允许有平方根。让 \(\mathfrak X_R^N\) 表示 R 模块 N 中准二次模组的集合,其中 R 是交换环。已知存在一个唯一的 A 的重环 B,使得 B 是一个具有估值群 \((G,\le )\) 的估值环,并且 B 的最大理想与 A 的最大理想重合。在上述设置中,我们找到了 \({\mathfrak {X}}_A^A\) 和 \(\prod _{g \in G,g \ge e} {\mathfrak {X}}_{F_0}^F\) 的子集之间的一一对应关系。
Quasi-quadratic modules in pseudo-valuation domain
We study quasi-quadratic modules in a pseudo-valuation domain A whose strict units admit a square root. Let \(\mathfrak X_R^N\) denote the set of quasi-quadratic modules in an R-module N, where R is a commutative ring. It is known that there exists a unique overring B of A such that B is a valuation ring with the valuation group \((G,\le )\) and the maximal ideal of B coincides with that of A. Let F be the residue field of B. In the above setting, we found a one-to-one correspondence between \({\mathfrak {X}}_A^A\) and a subset of \(\prod _{g \in G,g \ge e} {\mathfrak {X}}_{F_0}^F\).