{"title":"二维导数的$p$封闭性标准","authors":"Kentaro Mitsui, Nobuo Sato","doi":"arxiv-2409.03442","DOIUrl":null,"url":null,"abstract":"Jacobson developed a counterpart of Galois theory for purely inseparable\nfield extensions in positive characteristic. In his theory, a certain type of\nderivations replace the role of the generators of Galois groups. This article\nprovides a convenient criterion for determining such derivations in dimension\ntwo. We also present examples demonstrating the efficiency of our criterion.","PeriodicalId":501063,"journal":{"name":"arXiv - MATH - Algebraic Geometry","volume":"172 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A criterion for $p$-closedness of derivations in dimension two\",\"authors\":\"Kentaro Mitsui, Nobuo Sato\",\"doi\":\"arxiv-2409.03442\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Jacobson developed a counterpart of Galois theory for purely inseparable\\nfield extensions in positive characteristic. In his theory, a certain type of\\nderivations replace the role of the generators of Galois groups. This article\\nprovides a convenient criterion for determining such derivations in dimension\\ntwo. We also present examples demonstrating the efficiency of our criterion.\",\"PeriodicalId\":501063,\"journal\":{\"name\":\"arXiv - MATH - Algebraic Geometry\",\"volume\":\"172 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-05\",\"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-2409.03442\",\"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-2409.03442","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A criterion for $p$-closedness of derivations in dimension two
Jacobson developed a counterpart of Galois theory for purely inseparable
field extensions in positive characteristic. In his theory, a certain type of
derivations replace the role of the generators of Galois groups. This article
provides a convenient criterion for determining such derivations in dimension
two. We also present examples demonstrating the efficiency of our criterion.