{"title":"一些3-dim系统的时间可逆性和变量","authors":"T. Petek, V. Romanovski","doi":"10.56415/basm.y2023.i1.p16","DOIUrl":null,"url":null,"abstract":"We study time-reversibility and invariants of the group of transformations $x\\to x, \\ y\\to \\alpha y, \\ z \\to \\alpha ^{-1}z$ for three-dimensional polynomial systems with $0:1:-1$ resonant singular point at the origin. An algorithm to find the Zariski closure of the set of time-reversible systems in the space of parameters is proposed. The interconnection of time-reversibility and invariants of the group mentioned above is discussed.","PeriodicalId":102242,"journal":{"name":"Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica","volume":"14 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Time-Reversibility and Ivariants of Some 3-dim Systems\",\"authors\":\"T. Petek, V. Romanovski\",\"doi\":\"10.56415/basm.y2023.i1.p16\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We study time-reversibility and invariants of the group of transformations $x\\\\to x, \\\\ y\\\\to \\\\alpha y, \\\\ z \\\\to \\\\alpha ^{-1}z$ for three-dimensional polynomial systems with $0:1:-1$ resonant singular point at the origin. An algorithm to find the Zariski closure of the set of time-reversible systems in the space of parameters is proposed. The interconnection of time-reversibility and invariants of the group mentioned above is discussed.\",\"PeriodicalId\":102242,\"journal\":{\"name\":\"Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica\",\"volume\":\"14 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.56415/basm.y2023.i1.p16\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.56415/basm.y2023.i1.p16","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
本文研究了具有$0:1:-1$原点共振奇点的三维多项式系统$x\到x, $ y\到\ α y, $ z \到\ α ^{-1}z$的变换群的时间可逆性和不变量。提出了一种在参数空间中求时间可逆系统集的Zariski闭包的算法。讨论了上述群的时间可逆性与不变量的相互关系。
Time-Reversibility and Ivariants of Some 3-dim Systems
We study time-reversibility and invariants of the group of transformations $x\to x, \ y\to \alpha y, \ z \to \alpha ^{-1}z$ for three-dimensional polynomial systems with $0:1:-1$ resonant singular point at the origin. An algorithm to find the Zariski closure of the set of time-reversible systems in the space of parameters is proposed. The interconnection of time-reversibility and invariants of the group mentioned above is discussed.