{"title":"芙丝汀宝套装及其随机版本","authors":"A. Fan, Herv'e Queff'elec, M. Queff'elec","doi":"10.4171/lem/1040","DOIUrl":null,"url":null,"abstract":"We study some number-theoretic, ergodic and harmonic analysis properties of the Furstenberg set of integers $S=\\{2^{m}3^{n}\\}$ and compare them to those of its random analogue $T$. In this half-expository work, we show for example that $S$ is \"Khinchin distributed\", is far from being Hartman-distributed while $T$ is, and that $S$ is a $\\Lambda(p)$ set for all $2<p<\\infty$ and that $T$ is a $p$-Rider set for all $p$ such that $4/3<p<2$. Measure-theoretic and probabilistic techniques, notably martingales, play an important role in this work.","PeriodicalId":344085,"journal":{"name":"L’Enseignement Mathématique","volume":"10 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"The Furstenberg set and its random version\",\"authors\":\"A. Fan, Herv'e Queff'elec, M. Queff'elec\",\"doi\":\"10.4171/lem/1040\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We study some number-theoretic, ergodic and harmonic analysis properties of the Furstenberg set of integers $S=\\\\{2^{m}3^{n}\\\\}$ and compare them to those of its random analogue $T$. In this half-expository work, we show for example that $S$ is \\\"Khinchin distributed\\\", is far from being Hartman-distributed while $T$ is, and that $S$ is a $\\\\Lambda(p)$ set for all $2<p<\\\\infty$ and that $T$ is a $p$-Rider set for all $p$ such that $4/3<p<2$. Measure-theoretic and probabilistic techniques, notably martingales, play an important role in this work.\",\"PeriodicalId\":344085,\"journal\":{\"name\":\"L’Enseignement Mathématique\",\"volume\":\"10 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-04-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"L’Enseignement Mathématique\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4171/lem/1040\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"L’Enseignement Mathématique","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4171/lem/1040","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
We study some number-theoretic, ergodic and harmonic analysis properties of the Furstenberg set of integers $S=\{2^{m}3^{n}\}$ and compare them to those of its random analogue $T$. In this half-expository work, we show for example that $S$ is "Khinchin distributed", is far from being Hartman-distributed while $T$ is, and that $S$ is a $\Lambda(p)$ set for all $2