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亚纯函数微分多项式分担多项式的唯一性
Uniqueness of differential polynomials of meromorphic functions sharing a polynomial
【摘要】 研究了亚纯函数的微分多项式fnf′和gng′IM分担一个多项式P(z)的唯一性问题,证明了当n>22且多项式P(z)的次数小于等于n时,则f(z)=tg(z),或者f(z)=λ1eλ∫P(z)dz,g(z)=2e-λ∫P(z)dz,其中,t,λ1λ2,λ为常数。
【Abstract】 The uniqueness of differential polynomials of meromorphic functions fnf′ and gng′ IM sharing a polynomial P(z) was studied. If n>22 and the degree of P(z) is not more than n, then f (z) = tg(z), or f(z)=λ1eλ∫P(z)dz,g(z)=2e-λ∫P(z)dz, where t,t,λ1λ2,λ are constants.
【关键词】 微分多项式;
唯一性;
亚纯函数;
分担多项式;
【Key words】 differential polynomial; uniqueness; meromorphic function; sharing a polynomial;
【Key words】 differential polynomial; uniqueness; meromorphic function; sharing a polynomial;
【基金】 国家自然科学基金资助项目(11771090)
- 【文献出处】 上海理工大学学报 ,Journal of University of Shanghai for Science and Technology , 编辑部邮箱 ,2020年03期
- 【分类号】O174.52
- 【下载频次】21