{"title":"Rings, Matrices over Which Are Representable As the Sum of Two Potent Matrices","authors":"","doi":"10.3103/s1066369x23120022","DOIUrl":null,"url":null,"abstract":"<span> <h3>Abstract</h3> <p>This paper investigates conditions under which representability of each element <span> <span>\\(a\\)</span> </span> from the field <span> <span>\\(P\\)</span> </span> as the sum <span> <span>\\(a = f + g\\)</span> </span>, where <span> <span>\\({{f}^{{{{q}_{1}}}}} = f\\)</span> </span>, <span> <span>\\({{g}^{{{{q}_{2}}}}} = g\\)</span> </span>, and <span> <span>\\({{q}_{1}},{{q}_{2}}\\)</span> </span> are fixed natural numbers >1, implies a similar representability of each square matrix over the field <span> <span>\\(P\\)</span> </span>. We propose a general approach to solving this problem. As an application we describe fields and commutative rings where 2 is a unit, over which each square matrix is the sum of two 4-potent matrices.</p> </span>","PeriodicalId":46110,"journal":{"name":"Russian Mathematics","volume":"35 1","pages":""},"PeriodicalIF":0.5000,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Mathematics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3103/s1066369x23120022","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 0
Abstract
This paper investigates conditions under which representability of each element \(a\) from the field \(P\) as the sum \(a = f + g\), where \({{f}^{{{{q}_{1}}}}} = f\), \({{g}^{{{{q}_{2}}}}} = g\), and \({{q}_{1}},{{q}_{2}}\) are fixed natural numbers >1, implies a similar representability of each square matrix over the field \(P\). We propose a general approach to solving this problem. As an application we describe fields and commutative rings where 2 is a unit, over which each square matrix is the sum of two 4-potent matrices.
Abstract This paper investigates conditions under which representability of each element \(a\) from the field \(P\) as the sum \(a = f + g\) , where \({{f}^{{{{q}_{1}}}}} = f\) , \({{g}^{{{{q}_{2}}}}} = g\) , and \({{q}_{1}},{{q}_{2}}\) are fixed natural numbers >;1,意味着每个方阵在 \(P\) 域上都有类似的可表示性。我们提出了解决这个问题的一般方法。作为应用,我们描述了以 2 为单位的域和交换环,在这些域和交换环上,每个平方矩阵都是两个 4 实矩阵之和。