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IM分担一个值的亚纯函数的唯一性 被引量:1

Uniqueness of meromorphic functions sharing one value IM
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摘要 运用亚纯函数的值分布理论研究了亚纯函数IM分担一个值的唯一性.获得如下结果:设f与g为非常数的亚纯函数,n≥23为正整数,若fnf′与gng′IM分担1,则f=tg,其中t为常数,tn+1=1;或者f(z)=c2e-cz,g(z)=c1ecz,其中c,c1,c2是常数满足(c1c2)n+1c2=-1. Using Nevanlinna value distribution theory, the authors study the uniqueness of meromorphic functions sharing 1 IM, and the following theorem is obtained: Let f and g be two nonconstant meromorphic functions, n≥23 be a positive integer, if .t^nf′ share 1 with g^ng′, IM, then f= tg. where t is a constant.t^n + 1 = 1 ; or f(z) = c2e^-cz, g (z) = c1e^cz, where c, c1, c2 are constants, such that( c1c2 )^n+1c^2 = - 1.
出处 《四川大学学报(自然科学版)》 CAS CSCD 北大核心 2008年第1期21-24,共4页 Journal of Sichuan University(Natural Science Edition)
基金 四川省教育厅自然科学基金资助项目(2004-104A)
关键词 亚纯函数 唯一性 meromorphic functions, uniqueness
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参考文献13

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二级参考文献1

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共引文献7

同被引文献9

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