Eman Ali  Hussein, Ayad Waly  Ali, 
    The Radial Oscillation of Entire Solutions of a Class of
Higher Order Complex Differential Equations,
    Journal of Engineering and Applied Sciences,
    Volume 13,Issue 9,
    2018,
    Pages 2609-2613,
    ISSN 1816-949x,
    jeasci.2018.2609.2613,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2018.2609.2613)
    Abstract: 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.
    Keywords: estimates;linear differential equation order;entire function;Borel direction;growth;angular