2 The Metho d of Frob enius
We cons ider the second-order homogeneous linear differential equation which
has variable co efficients. The solution can b e obtained by using the metho d
of Frob enius . We show that the p ower series metho d can b e applied to the
pro cess. We derived the one solution of the homogeneous differential equation.
We will consider the general solution in the future work.
Definition 2.1. Regular singular point [1]. Given that x = x 0 is a singular
point of the differential equation y 00 + p(x)y 0 + q(x)y = 0. If the functions
(x − x 0)p(x) and (x − x 0) 2q(x) are both analytic at x0, then x0 is a regular
singular point.
Theorem 2.2. Method of Frobenius [1]. Ifx = 0 is a regular singular point
of the second-order homogenous linear differential equation, then the equation
has at least one solution of the form