{"title":"双点少的简单排列","authors":"Dmitri Panov, Guillaume Tahar","doi":"arxiv-2409.01892","DOIUrl":null,"url":null,"abstract":"In their solution to the orchard-planting problem, Green and Tao established\na structure theorem which proves that in a line arrangement in the real\nprojective plane with few double points, most lines are tangent to the dual\ncurve of a cubic curve. We provide geometric arguments to prove that in the\ncase of a simplicial arrangement, the aforementioned cubic curve cannot be\nirreducible. It follows that Gr\\\"{u}nbaum's conjectural asymptotic\nclassification of simplicial arrangements holds under the additional hypothesis\nof a linear bound on the number of double points.","PeriodicalId":501271,"journal":{"name":"arXiv - MATH - Geometric Topology","volume":"19 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Simplicial arrangements with few double points\",\"authors\":\"Dmitri Panov, Guillaume Tahar\",\"doi\":\"arxiv-2409.01892\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In their solution to the orchard-planting problem, Green and Tao established\\na structure theorem which proves that in a line arrangement in the real\\nprojective plane with few double points, most lines are tangent to the dual\\ncurve of a cubic curve. We provide geometric arguments to prove that in the\\ncase of a simplicial arrangement, the aforementioned cubic curve cannot be\\nirreducible. It follows that Gr\\\\\\\"{u}nbaum's conjectural asymptotic\\nclassification of simplicial arrangements holds under the additional hypothesis\\nof a linear bound on the number of double points.\",\"PeriodicalId\":501271,\"journal\":{\"name\":\"arXiv - MATH - Geometric Topology\",\"volume\":\"19 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - MATH - Geometric Topology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.01892\",\"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 - Geometric Topology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.01892","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
In their solution to the orchard-planting problem, Green and Tao established
a structure theorem which proves that in a line arrangement in the real
projective plane with few double points, most lines are tangent to the dual
curve of a cubic curve. We provide geometric arguments to prove that in the
case of a simplicial arrangement, the aforementioned cubic curve cannot be
irreducible. It follows that Gr\"{u}nbaum's conjectural asymptotic
classification of simplicial arrangements holds under the additional hypothesis
of a linear bound on the number of double points.