{"title":"用二项式表示的有限域中的高阶元","authors":"V. Bovdi, A. Diene, R. Popovych","doi":"10.15330/cmp.14.1.238-246","DOIUrl":null,"url":null,"abstract":"Let $F_q$ be a field with $q$ elements, where $q$ is a power of a prime number $p\\geq 5$. For any integer $m\\geq 2$ and $a\\in F_q^*$ such that the polynomial $x^m-a$ is irreducible in $F_q[x]$, we combine two different methods to explicitly construct elements of high order in the field $F_q[x]/\\langle x^m-a\\rangle$. Namely, we find elements with multiplicative order of at least $5^{\\sqrt[3]{m/2}}$, which is better than previously obtained bound for such family of extension fields.","PeriodicalId":42912,"journal":{"name":"Carpathian Mathematical Publications","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2022-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Elements of high order in finite fields specified by binomials\",\"authors\":\"V. Bovdi, A. Diene, R. Popovych\",\"doi\":\"10.15330/cmp.14.1.238-246\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Let $F_q$ be a field with $q$ elements, where $q$ is a power of a prime number $p\\\\geq 5$. For any integer $m\\\\geq 2$ and $a\\\\in F_q^*$ such that the polynomial $x^m-a$ is irreducible in $F_q[x]$, we combine two different methods to explicitly construct elements of high order in the field $F_q[x]/\\\\langle x^m-a\\\\rangle$. Namely, we find elements with multiplicative order of at least $5^{\\\\sqrt[3]{m/2}}$, which is better than previously obtained bound for such family of extension fields.\",\"PeriodicalId\":42912,\"journal\":{\"name\":\"Carpathian Mathematical Publications\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.0000,\"publicationDate\":\"2022-04-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Carpathian Mathematical Publications\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.15330/cmp.14.1.238-246\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATHEMATICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Carpathian Mathematical Publications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15330/cmp.14.1.238-246","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATHEMATICS","Score":null,"Total":0}
Elements of high order in finite fields specified by binomials
Let $F_q$ be a field with $q$ elements, where $q$ is a power of a prime number $p\geq 5$. For any integer $m\geq 2$ and $a\in F_q^*$ such that the polynomial $x^m-a$ is irreducible in $F_q[x]$, we combine two different methods to explicitly construct elements of high order in the field $F_q[x]/\langle x^m-a\rangle$. Namely, we find elements with multiplicative order of at least $5^{\sqrt[3]{m/2}}$, which is better than previously obtained bound for such family of extension fields.