{"title":"由平面上的点构成所张成的面积","authors":"Alex McDonald","doi":"10.1090/proc/15348","DOIUrl":null,"url":null,"abstract":"We consider an over-determined Falconer type problem on $(k+1)$-point configurations in the plane using the group action framework introduced in \\cite{GroupAction}. We define the area type of a $(k+1)$-point configuration in the plane to be the vector in $\\R^{\\binom{k+1}{2}}$ with entries given by the areas of parallelograms spanned by each pair of points in the configuration. We show that the space of all area types is $2k-1$ dimensional, and prove that a compact set $E\\subset\\R^d$ of sufficiently large Hausdorff dimension determines a positve measure set of area types.","PeriodicalId":8451,"journal":{"name":"arXiv: Classical Analysis and ODEs","volume":"39 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Areas spanned by point configurations in the plane\",\"authors\":\"Alex McDonald\",\"doi\":\"10.1090/proc/15348\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We consider an over-determined Falconer type problem on $(k+1)$-point configurations in the plane using the group action framework introduced in \\\\cite{GroupAction}. We define the area type of a $(k+1)$-point configuration in the plane to be the vector in $\\\\R^{\\\\binom{k+1}{2}}$ with entries given by the areas of parallelograms spanned by each pair of points in the configuration. We show that the space of all area types is $2k-1$ dimensional, and prove that a compact set $E\\\\subset\\\\R^d$ of sufficiently large Hausdorff dimension determines a positve measure set of area types.\",\"PeriodicalId\":8451,\"journal\":{\"name\":\"arXiv: Classical Analysis and ODEs\",\"volume\":\"39 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-08-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv: Classical Analysis and ODEs\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1090/proc/15348\",\"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: Classical Analysis and ODEs","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1090/proc/15348","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Areas spanned by point configurations in the plane
We consider an over-determined Falconer type problem on $(k+1)$-point configurations in the plane using the group action framework introduced in \cite{GroupAction}. We define the area type of a $(k+1)$-point configuration in the plane to be the vector in $\R^{\binom{k+1}{2}}$ with entries given by the areas of parallelograms spanned by each pair of points in the configuration. We show that the space of all area types is $2k-1$ dimensional, and prove that a compact set $E\subset\R^d$ of sufficiently large Hausdorff dimension determines a positve measure set of area types.