{"title":"拟齐次多项式平面刚性系统的中心焦点辨识","authors":"H. Tan","doi":"10.25236/ajms.2022.030105","DOIUrl":null,"url":null,"abstract":"For each quasi-homogeneous polynomial planar rigid system with weight (2,1), we prove that the origin is a center equilibrium when the degree is odd, and we obtain necessary and sufficient condition for the origin to be a center when the degree is even.","PeriodicalId":372277,"journal":{"name":"Academic Journal of Mathematical Sciences","volume":"11 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Center-focus identification of quasi-homogeneous polynomial planar rigid system\",\"authors\":\"H. Tan\",\"doi\":\"10.25236/ajms.2022.030105\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"For each quasi-homogeneous polynomial planar rigid system with weight (2,1), we prove that the origin is a center equilibrium when the degree is odd, and we obtain necessary and sufficient condition for the origin to be a center when the degree is even.\",\"PeriodicalId\":372277,\"journal\":{\"name\":\"Academic Journal of Mathematical Sciences\",\"volume\":\"11 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Academic Journal of Mathematical Sciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.25236/ajms.2022.030105\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Academic Journal of Mathematical Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.25236/ajms.2022.030105","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Center-focus identification of quasi-homogeneous polynomial planar rigid system
For each quasi-homogeneous polynomial planar rigid system with weight (2,1), we prove that the origin is a center equilibrium when the degree is odd, and we obtain necessary and sufficient condition for the origin to be a center when the degree is even.