On the Iterated Exponent of Convergence of Solutions of Linear Differential Equations with Entire and Meromorphic Coefficients

We investigate the zeros of the difference of the derivative of solutions of the higher-order linear differential equations f(k)+Ak-1(z)f(k-1)+⋯+A1(z)f′+A0(z)f=0 and small functions, where A0(z),…,Ak-1(z) are entire or meromorphic functions of finite iterated p order