In this paper, we investigate the exponent of convergence of the zero-sequence of solutions of the second order linear differential equation
where Pj (z) (j= 1,2, ..., l ≥ 3) are polynomials of degree n ≥ 1, Qj (z) are entire functions of order less than n, and obtain some results which improve and generalize the previous results in [8, 9, 13].
"On the zeros of solutions of a class of second order linear differential equations." Kodai Math. J. 33 (2) 251 - 266, June 2010. https://doi.org/10.2996/kmj/1278076341