Charlie Bruggemann, Vera Choi, Brian Freidin, Jaedon Whyte
{"title":"有限几何中的横向自由度","authors":"Charlie Bruggemann, Vera Choi, Brian Freidin, Jaedon Whyte","doi":"arxiv-2409.05248","DOIUrl":null,"url":null,"abstract":"We study projective curves and hypersurfaces defined over a finite field that\nare tangent to every member of a class of low-degree varieties. Extending\n2-dimensional work of Asgarli, we first explore the lowest degrees attainable\nby smooth hypersurfaces in $n$-dimensional projective space that are tangent to\nevery $k$-dimensional subspace, for some value of $n$ and $k$. We then study\nprojective surfaces that serve as models of finite inversive and hyperbolic\nplanes, finite analogs of spherical and hyperbolic geometries. In these\nsurfaces we construct curves tangent to each of the lowest degree curves\ndefined over the base field.","PeriodicalId":501063,"journal":{"name":"arXiv - MATH - Algebraic Geometry","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Transverse-freeness in finite geometries\",\"authors\":\"Charlie Bruggemann, Vera Choi, Brian Freidin, Jaedon Whyte\",\"doi\":\"arxiv-2409.05248\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We study projective curves and hypersurfaces defined over a finite field that\\nare tangent to every member of a class of low-degree varieties. Extending\\n2-dimensional work of Asgarli, we first explore the lowest degrees attainable\\nby smooth hypersurfaces in $n$-dimensional projective space that are tangent to\\nevery $k$-dimensional subspace, for some value of $n$ and $k$. We then study\\nprojective surfaces that serve as models of finite inversive and hyperbolic\\nplanes, finite analogs of spherical and hyperbolic geometries. In these\\nsurfaces we construct curves tangent to each of the lowest degree curves\\ndefined over the base field.\",\"PeriodicalId\":501063,\"journal\":{\"name\":\"arXiv - MATH - Algebraic Geometry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - MATH - Algebraic Geometry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.05248\",\"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 - Algebraic Geometry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.05248","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
We study projective curves and hypersurfaces defined over a finite field that
are tangent to every member of a class of low-degree varieties. Extending
2-dimensional work of Asgarli, we first explore the lowest degrees attainable
by smooth hypersurfaces in $n$-dimensional projective space that are tangent to
every $k$-dimensional subspace, for some value of $n$ and $k$. We then study
projective surfaces that serve as models of finite inversive and hyperbolic
planes, finite analogs of spherical and hyperbolic geometries. In these
surfaces we construct curves tangent to each of the lowest degree curves
defined over the base field.