Solving a Delay Differential Equation by Two Direct Approaches  

作　　者：N. O. Alatawi A. Ebaid 

机构地区：[1]Department of Mathematics,Faculty of Science,University of Tabuk,P.O.Box 741,Tabuk 71491,Saudi Arabia

出　　处：《Journal of Mathematics and System Science》2019年第2期54-56,共3页数学和系统科学（英文版）

摘　　要：The Ambartsumian equation is an application of the theory of surface brightness in the milky way. It is a linear differential equation involving a proportional delay term. In this paper, two different approaches have been used to obtain the power series solution of Ambartsumian equation. The obtained series solution by the suggested approaches agrees with the published solution in the literature. However, the current approaches are not only very simple but also straightforward.

关 键 词：Ambartsumian EQUATION milky WAY SERIES SOLUTION 

分 类 号：O1[理学—数学]