Second Main Theorem and Uniqueness Problem of Meromorphic Functions with Finite Growth Index Sharing Five Small Functions on a Complex Disc

Citation:

Si Duc QUANG.Second Main Theorem and Uniqueness Problem of Meromorphic Functions with Finite Growth Index Sharing Five Small Functions on a Complex Disc[J].Chinese Annals of Mathematics B,2026,(4):697~710
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Authors:

Si Duc QUANG;

Foundation:

the Vietnam National Foundation for Science and Technology Development (NAFOSTED) (No. 101.02-2021.12).
Abstract: This paper has a twofold purpose. The first is to establish a second main theorem for meromorphic functions on the complex disc ?(R0) ? C with finite growth index and small functions, where the counting functions are truncated to level 1 and the small term is more detailedly estimated. The second is to prove a generalization and improvement of the five values theorem of Nevanlinna for the case of five small functions on the complex disc ?(R0).

Keywords:

Nevanlinna theory  Second main theorem  Meromorphic function  Small function

Classification:

30D35, 32H30, 32A22
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