{"title":"曲线上的大度原始点","authors":"Maarten Derickx","doi":"arxiv-2409.05796","DOIUrl":null,"url":null,"abstract":"A number field $K$ is called primitive if $\\mathbb Q$ and $K$ are the only\nsubfields of $K$. Let $X$ be a nice curve over $\\mathbb Q$ of genus $g$. A\npoint $P$ of degree $d$ on $X$ is called primitive if the field of definition\n$\\mathbb Q(P)$ of the point is primitive. In this short note we prove that if\n$X$ has a divisor of degree $d> 2g$, then $X$ has infinitely many primitive\npoints of degree $d$. This complements the results of Khawaja and Siksek that\nshow that points of low degree are not primitive under certain conditions.","PeriodicalId":501064,"journal":{"name":"arXiv - MATH - Number Theory","volume":"3 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Large degree primitive points on curves\",\"authors\":\"Maarten Derickx\",\"doi\":\"arxiv-2409.05796\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A number field $K$ is called primitive if $\\\\mathbb Q$ and $K$ are the only\\nsubfields of $K$. Let $X$ be a nice curve over $\\\\mathbb Q$ of genus $g$. A\\npoint $P$ of degree $d$ on $X$ is called primitive if the field of definition\\n$\\\\mathbb Q(P)$ of the point is primitive. In this short note we prove that if\\n$X$ has a divisor of degree $d> 2g$, then $X$ has infinitely many primitive\\npoints of degree $d$. This complements the results of Khawaja and Siksek that\\nshow that points of low degree are not primitive under certain conditions.\",\"PeriodicalId\":501064,\"journal\":{\"name\":\"arXiv - MATH - Number Theory\",\"volume\":\"3 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - MATH - Number Theory\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.05796\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - MATH - Number Theory","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.05796","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A number field $K$ is called primitive if $\mathbb Q$ and $K$ are the only
subfields of $K$. Let $X$ be a nice curve over $\mathbb Q$ of genus $g$. A
point $P$ of degree $d$ on $X$ is called primitive if the field of definition
$\mathbb Q(P)$ of the point is primitive. In this short note we prove that if
$X$ has a divisor of degree $d> 2g$, then $X$ has infinitely many primitive
points of degree $d$. This complements the results of Khawaja and Siksek that
show that points of low degree are not primitive under certain conditions.