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关于Hayman猜想的正规定则的推广
引用本文:刘素红,田保,田宏根.关于Hayman猜想的正规定则的推广[J].安徽大学学报(自然科学版),2009,33(6).
作者姓名:刘素红  田保  田宏根
作者单位:1. 宝鸡文理学院,数学系,陕西,宝鸡,721013
2. 新疆师范大学,数理信息学院,新疆,乌鲁木齐,830054
摘    要:在一般条件f(k)(z)-afk+1(z)≠b下研究正规性,推广了以往在条件f(′z)-afn(z)≠b下研究正规性问题,从而改进了以往结论,即设F是区域D上的亚纯函数族,a≠0和b是两个有穷复数,k为一正整数,如果F内的每个函数f(z)都满足f(k)(z)-afk+1(z)≠b,并且f(z)的极点重数≥k+1,零点重数≥2,则F在D内是正规的.

关 键 词:亚纯函数  正规定则  极点

The promotion of nomoility criterion on Hayman guess
LIU Su-hong,TIAN Bao,TIAN Hong-gen.The promotion of nomoility criterion on Hayman guess[J].Journal of Anhui University(Natural Sciences),2009,33(6).
Authors:LIU Su-hong  TIAN Bao  TIAN Hong-gen
Institution:LIU Su-hong1,TIAN Bao2,TIAN Hong-gen2(1.Department of Mathemtics,Baoji University of Arts , Sciences,Baoji 721013,China,2.School of Maths-physics , Information Sciences,Xinjiang Normal University,Urumqi 830054,China)
Abstract:Under the wide condition of f~(k)(z)-af~(k+1)(z)≠b, we studied nomoility and improved the previous nomoility criterion with the condition of f′(z)-af~n(z)≠b. Namely:set F was a meromorphic tribe on the regional D, a≠0 and b were two poor plural, k as a positive integer,each of f satisfied f~(k)(z)-af~(k+1)(z)≠b and all of whose poles were of multiplicity at least ≥k+1, whose zeros were of multiplicity at least≥2, then F was normal in the region D.
Keywords:meromorphic functions  nomoility criterion  pole
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