{"title":"多项式零点和临界点的分布及Sendov猜想","authors":"G. M. Sofi, W. M. Shah","doi":"10.3103/s1068362323050084","DOIUrl":null,"url":null,"abstract":"Abstract According to the Gauss–Lucas theorem, the critical points of a complex polynomial $$p(z):=\\sum_{j=0}^{n}a_{j}z^{j}$$ where $$a_{j}\\in\\mathbb{C}$$ always lie in the convex hull of its zeros. In this paper, we prove certain relations between the distribution of zeros of a polynomial and its critical points. Using these relations, we prove the well-known Sendov’s conjecture for certain special cases.","PeriodicalId":54854,"journal":{"name":"Journal of Contemporary Mathematical Analysis-Armenian Academy of Sciences","volume":"7 1","pages":"0"},"PeriodicalIF":0.3000,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Distribution of Zeros and Critical Points of a Polynomial, and Sendov’s Conjecture\",\"authors\":\"G. M. Sofi, W. M. Shah\",\"doi\":\"10.3103/s1068362323050084\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract According to the Gauss–Lucas theorem, the critical points of a complex polynomial $$p(z):=\\\\sum_{j=0}^{n}a_{j}z^{j}$$ where $$a_{j}\\\\in\\\\mathbb{C}$$ always lie in the convex hull of its zeros. In this paper, we prove certain relations between the distribution of zeros of a polynomial and its critical points. Using these relations, we prove the well-known Sendov’s conjecture for certain special cases.\",\"PeriodicalId\":54854,\"journal\":{\"name\":\"Journal of Contemporary Mathematical Analysis-Armenian Academy of Sciences\",\"volume\":\"7 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.3000,\"publicationDate\":\"2023-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Contemporary Mathematical Analysis-Armenian Academy of Sciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3103/s1068362323050084\",\"RegionNum\":4,\"RegionCategory\":\"数学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATHEMATICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Contemporary Mathematical Analysis-Armenian Academy of Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3103/s1068362323050084","RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATHEMATICS","Score":null,"Total":0}
Distribution of Zeros and Critical Points of a Polynomial, and Sendov’s Conjecture
Abstract According to the Gauss–Lucas theorem, the critical points of a complex polynomial $$p(z):=\sum_{j=0}^{n}a_{j}z^{j}$$ where $$a_{j}\in\mathbb{C}$$ always lie in the convex hull of its zeros. In this paper, we prove certain relations between the distribution of zeros of a polynomial and its critical points. Using these relations, we prove the well-known Sendov’s conjecture for certain special cases.
期刊介绍:
Journal of Contemporary Mathematical Analysis (Armenian Academy of Sciences) is an outlet for research stemming from the widely acclaimed Armenian school of theory of functions, this journal today continues the traditions of that school in the area of general analysis. A very prolific group of mathematicians in Yerevan contribute to this leading mathematics journal in the following fields: real and complex analysis; approximations; boundary value problems; integral and stochastic geometry; differential equations; probability; integral equations; algebra.