On the Growth of Solutions of the Complex Differential Equation f″+Af' +Bf = 0(2)

The authors consider the differential equation f"+Af'+Bf=0,where A(z) and B(z) are meromorphic functions.Assume that A(z) has a finite deficient value.Then under some conditions on B(z),every nonzero solution f to the equation is of infinite order. These results extend the previous work of Wu Pengcheng and Zhu Jun to the case that the order of B(z) is 1/2.