{"title":"多维整数三角学","authors":"J. Blackman, James Dolan, O. Karpenkov","doi":"10.46298/cm.10919","DOIUrl":null,"url":null,"abstract":"This paper is dedicated to providing an introduction into multidimensional\ninteger trigonometry. We start with an exposition of integer trigonometry in\ntwo dimensions, which was introduced in 2008, and use this to generalise these\ninteger trigonometric functions to arbitrary dimension. We then move on to\nstudy the basic properties of integer trigonometric functions. We find integer\ntrigonometric relations for transpose and adjacent simplicial cones, and for\nthe cones which generate the same simplices. Additionally, we discuss the\nrelationship between integer trigonometry, the Euclidean algorithm, and\ncontinued fractions. Finally, we use adjacent and transpose cones to introduce\na notion of best approximations of simplicial cones. In two dimensions, this\nnotion of best approximation coincides with the classical notion of the best\napproximations of real numbers.","PeriodicalId":37836,"journal":{"name":"Communications in Mathematics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Multidimensional integer trigonometry\",\"authors\":\"J. Blackman, James Dolan, O. Karpenkov\",\"doi\":\"10.46298/cm.10919\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper is dedicated to providing an introduction into multidimensional\\ninteger trigonometry. We start with an exposition of integer trigonometry in\\ntwo dimensions, which was introduced in 2008, and use this to generalise these\\ninteger trigonometric functions to arbitrary dimension. We then move on to\\nstudy the basic properties of integer trigonometric functions. We find integer\\ntrigonometric relations for transpose and adjacent simplicial cones, and for\\nthe cones which generate the same simplices. Additionally, we discuss the\\nrelationship between integer trigonometry, the Euclidean algorithm, and\\ncontinued fractions. Finally, we use adjacent and transpose cones to introduce\\na notion of best approximations of simplicial cones. In two dimensions, this\\nnotion of best approximation coincides with the classical notion of the best\\napproximations of real numbers.\",\"PeriodicalId\":37836,\"journal\":{\"name\":\"Communications in Mathematics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-02-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Communications in Mathematics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.46298/cm.10919\",\"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":"Communications in Mathematics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.46298/cm.10919","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Mathematics","Score":null,"Total":0}
This paper is dedicated to providing an introduction into multidimensional
integer trigonometry. We start with an exposition of integer trigonometry in
two dimensions, which was introduced in 2008, and use this to generalise these
integer trigonometric functions to arbitrary dimension. We then move on to
study the basic properties of integer trigonometric functions. We find integer
trigonometric relations for transpose and adjacent simplicial cones, and for
the cones which generate the same simplices. Additionally, we discuss the
relationship between integer trigonometry, the Euclidean algorithm, and
continued fractions. Finally, we use adjacent and transpose cones to introduce
a notion of best approximations of simplicial cones. In two dimensions, this
notion of best approximation coincides with the classical notion of the best
approximations of real numbers.
期刊介绍:
Communications in Mathematics publishes research and survey papers in all areas of pure and applied mathematics. To be acceptable for publication, the paper must be significant, original and correct. High quality review papers of interest to a wide range of scientists in mathematics and its applications are equally welcome.