首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
研究了亚纯函数族的正规族问题.利用Zalcman引理的方法,获得了亚纯函数族的几个正规定则.并改进了相关文献的结论.  相似文献   

2.
在本文研究了亚纯函数族的正规族问题,利用Zalcman引理的方法,获得了亚纯函数族的几个正规定则.并改进了顾永兴和Bergweiler的结果.  相似文献   

3.
In this paper, we study the normality of a family of meromorphic functions and general criteria for normality of families of meromorphic functions with multiple zeros concerning shared values are obtained.  相似文献   

4.
In this paper, we investigate the general normality criteria for a family of meromorphic functions using a geometric method. We obtain the necessary and sufficient conditions used for determining the normality of a family of meromorphic functions and some normal criteria on the family of meromorphic functions with shared set by using the fundamental theorem of a covering surface.  相似文献   

5.
该文研究了一类亚纯函数的一般性的正规定则.其结果推广了以前与之相关的一系列结果.  相似文献   

6.
关于亚纯函数的正规准则   总被引:1,自引:0,他引:1  
章文华 《数学杂志》2007,27(2):149-152
在本文研究了亚纯函数族的正规族的问题,利用Zalcman引理的方法,获得了涉及亚纯函数族k阶导数的例外函数的几个正规准则.并改进了顾永兴[3]等人的结果.  相似文献   

7.
In this paper, we study the normality of a family of meromorphic functions and general criteria for normality of families of meromorphic functions. Received: January 5, 2006 This research is supported by the National Natural Science Foundation, grant 10271122.  相似文献   

8.
We establish several upper-bound estimates for the growth of meromorphic functions with radially distributed value. We also obtain a normality criterion for a class of meromorphic functions, where any two of whose differential polynomials share a non-zero value. Our theorems improve some previous results.  相似文献   

9.
本文通过研究亚纯函数的正规族.利用反证法,获得了一个与分担值有关的涉及微分多项式的一般性的正规定则,改进了方明亮和L.Zalcman在2002年得到的一个结果.  相似文献   

10.
涉及零点重数的亚纯函数的值分布   总被引:20,自引:0,他引:20  
王跃飞  方明亮 《数学学报》1998,41(4):743-748
本文研究涉及零点重数的亚纯函数的值分布,证明了几个一般的模分布定理及相应的亚纯函数族的正规定则.  相似文献   

11.
Picard values and normal families of meromorphic functions with multiple zeros   总被引:18,自引:0,他引:18  
In this paper, general modular theorems are obtained for meromorphic functions and their derivatives. The related criteria for normality of families of meromorphic functions are proved. Research supported by the National Science Foundation of China  相似文献   

12.
We obtain some normality criteria of families of meromorphic functions sharing values related to Hayman conjecture, which improves some earlier related results.  相似文献   

13.
In this paper, we study the normality of the family of meromorphic functions from the viewpoint of hyperbolic metric. Then, a new sufficient and necessary condition is obtained, which can determine a given family of meromorphic functions is normal or not.  相似文献   

14.
本文将亚纯函数正规性与分担函数集相结合,探讨了亚纯函数族F正规与F中任意两个函数f与g分担函数的个数,f与其导数f'分担函数的个数及函数f的重值的个数三者之间的关系,给出了一个综合判定亚纯函数族正规的充分条件.  相似文献   

15.
杨端阳  叶亚盛 《数学杂志》2016,36(5):1091-1096
本文研究了与分担函数相关的亚纯函数族的正规性的问题.利用Nevanlinna理论的方法,得到了一个正规定则,推广了庞学诚和Zalcman~[3]的一个结果.  相似文献   

16.
本文研究了徐炎等人在文(Xu Y,Wu F Q,Liao L W.Picard values and normal families of meromorphic functions,Proc.R.Soc.Edinburgh,2009,139:1091-1099.)中提出的一个有关亚纯函数正规族猜想,得到了两个正规定则...  相似文献   

17.
In this paper, we obtain some normality criteria for families of meromorphic functions that concern the exceptional functions of derivatives.  相似文献   

18.
本文讨论亚纯函数族的正规性,推广并改进了杨乐 ̄[2,3],陈怀惠 ̄[5]和朱秀蓉,龚向宏 ̄[7]等人的结果。  相似文献   

19.
In this paper we generalize two known results concerning normal families of meromorphic functions. We first improve and extend a theorem of Liu and Nevo, using a completely different approach. Then we obtain a generalization of Gu’s normality criterion.  相似文献   

20.
In this article, we prove a normality criterion for a family of meromorphic functions having zeros with some multiplicity which involves sharing of a holomorphic function by the members of the family. Our result generalizes Montel’s normality test in a certain sense.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号