{"title":"三个专题","authors":"K. Goebel, S. Prus","doi":"10.1093/OSO/9780198827351.003.0009","DOIUrl":null,"url":null,"abstract":"First, the girth of the sphere, the infimum of length of arcs joining antipodal points on the sphere is discussed. Second, a coefficient measuring maximal separation of sequences contained in the ball is presented. Special properties of weakly convergent sequences are observed.","PeriodicalId":417325,"journal":{"name":"Elements of Geometry of Balls in Banach Spaces","volume":"92 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Three special topics\",\"authors\":\"K. Goebel, S. Prus\",\"doi\":\"10.1093/OSO/9780198827351.003.0009\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"First, the girth of the sphere, the infimum of length of arcs joining antipodal points on the sphere is discussed. Second, a coefficient measuring maximal separation of sequences contained in the ball is presented. Special properties of weakly convergent sequences are observed.\",\"PeriodicalId\":417325,\"journal\":{\"name\":\"Elements of Geometry of Balls in Banach Spaces\",\"volume\":\"92 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-09-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Elements of Geometry of Balls in Banach Spaces\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1093/OSO/9780198827351.003.0009\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Elements of Geometry of Balls in Banach Spaces","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1093/OSO/9780198827351.003.0009","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
First, the girth of the sphere, the infimum of length of arcs joining antipodal points on the sphere is discussed. Second, a coefficient measuring maximal separation of sequences contained in the ball is presented. Special properties of weakly convergent sequences are observed.
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