On the relationship between the logarithmic lower order of coefficients and the growth of solutions of complex linear differential equations in C\{z_0}

Abstract

In this article, we study the growth of solutions of the homogeneous complex linear differential equation f^(k) + A_k-1(z)f^(k-1) + ··· + A₁(z)f' + A₀(z)f = 0, where the coefficients A_j(z) (j = 0, 1, …, k-1) are analytic or meromorphic functions in ℂ \ {z₀}. Under the sufficient condition that there exists one dominant coefficient by its logarithmic lower order or by its logarithmic lower type, we extend some precedent results due to Liu, Long, and Zeng and others.