{"title":"矩阵的秩正规形式的一些结果","authors":"Sorin Radulescu, Marius Drăgan, M. Bencze","doi":"10.2478/ausm-2019-0028","DOIUrl":null,"url":null,"abstract":"Abstract If A is a rectangular matrix of rank r, then A may be written as PSQ where P and Q are invertible matrices and s=(IrOOO) s = \\left( {\\matrix{ \\hfill {{{\\rm{I}}_{\\rm{r}}}} & \\hfill {\\rm{O}} \\cr \\hfill {\\rm{O}} & \\hfill {\\rm{O}} \\cr } } \\right) . This is the rank normal form of the matrix A. The purpose of this paper is to exhibit some consequences of this representation form.","PeriodicalId":43054,"journal":{"name":"Acta Universitatis Sapientiae-Mathematica","volume":"3 1","pages":"380 - 386"},"PeriodicalIF":0.6000,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Some consequences of the rank normal form of a matrix\",\"authors\":\"Sorin Radulescu, Marius Drăgan, M. Bencze\",\"doi\":\"10.2478/ausm-2019-0028\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract If A is a rectangular matrix of rank r, then A may be written as PSQ where P and Q are invertible matrices and s=(IrOOO) s = \\\\left( {\\\\matrix{ \\\\hfill {{{\\\\rm{I}}_{\\\\rm{r}}}} & \\\\hfill {\\\\rm{O}} \\\\cr \\\\hfill {\\\\rm{O}} & \\\\hfill {\\\\rm{O}} \\\\cr } } \\\\right) . This is the rank normal form of the matrix A. The purpose of this paper is to exhibit some consequences of this representation form.\",\"PeriodicalId\":43054,\"journal\":{\"name\":\"Acta Universitatis Sapientiae-Mathematica\",\"volume\":\"3 1\",\"pages\":\"380 - 386\"},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2019-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Acta Universitatis Sapientiae-Mathematica\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2478/ausm-2019-0028\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATHEMATICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Universitatis Sapientiae-Mathematica","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2478/ausm-2019-0028","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATHEMATICS","Score":null,"Total":0}
Some consequences of the rank normal form of a matrix
Abstract If A is a rectangular matrix of rank r, then A may be written as PSQ where P and Q are invertible matrices and s=(IrOOO) s = \left( {\matrix{ \hfill {{{\rm{I}}_{\rm{r}}}} & \hfill {\rm{O}} \cr \hfill {\rm{O}} & \hfill {\rm{O}} \cr } } \right) . This is the rank normal form of the matrix A. The purpose of this paper is to exhibit some consequences of this representation form.