{"title":"Sums of Four Squares","authors":"R. Nelsen","doi":"10.1080/0025570x.2023.2231808","DOIUrl":null,"url":null,"abstract":"Summary We show wordlessly that if n is a sum of four distinct integer squares, then so is n 2, in four different ways.","PeriodicalId":18344,"journal":{"name":"Mathematics Magazine","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mathematics Magazine","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/0025570x.2023.2231808","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Mathematics","Score":null,"Total":0}
引用次数: 0
Abstract
Summary We show wordlessly that if n is a sum of four distinct integer squares, then so is n 2, in four different ways.