Meromorphic Solutions for a Class of Differential Equations and Their Applications

Autor: Weiran Lü, Jing Yang, Linlin Wu, Feng Lü
Rok vydání: 2018
Předmět:
Zdroj: Journal of Contemporary Mathematical Analysis (Armenian Academy of Sciences). 53:260-265
ISSN: 1934-9416
1068-3623
DOI: 10.3103/s1068362318050023
Popis: In this note, we study the admissible meromorphic solutions for algebraic differential equation fnf' + Pn−1(f) = R(z)eα(z), where Pn−1(f) is a differential polynomial in f of degree ≤ n − 1 with small function coefficients, R is a non-vanishing small function of f, and α is an entire function. We show that this equation does not possess any meromorphic solution f(z) satisfying N(r, f) = S(r, f) unless Pn−1(f) ≡ 0. Using this result, we generalize a well-known result by Hayman.
Databáze: OpenAIRE