TY  - JOUR
T1  - The Radial Oscillation of Entire Solutions of a Class of
Higher Order Complex Differential Equations
AU - Hussein, Eman Ali AU - Ali, Ayad Waly 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 9
SP  - 2609
EP  - 2613
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.2609.2613
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.2609.2613
KW  - estimates
KW  -linear differential equation order
KW  -entire function
KW  -Borel direction
KW  -growth
KW  -angular
AB  - In this study, we shall study the radial oscillation of solutions of n-th order complex linear differential
equations f <sup>(n)</sup> A (z)<sub>n-1</sub> f<sup>(n-1)</sup>+...+ A<sub>1</sub> (z) f&#146;+A<sub>0</sub> (z)f = F (z) where, A<sub>j</sub>(z), j = 0, 1, ..., n-1 and F(z) are transcendental entire

functions. We shall add some conditions on coefficients which show the relation between the Borel directions
of solutions f and that of F(z), further we obtain some estimates of growth of solutions in the angular
domains.
ER  -