Solving ODE Near x=0: Series Solution

Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
1 reply · 2K views
BColl
Messages
1
Reaction score
0

Homework Statement


Obtain solution valid near x=0

Homework Equations


(x2+1)y''+6xy'+6y=0


The Attempt at a Solution


y"+6x/(x2+1)y'+6x/(x2+1)=0
In representing the solution in series notation, I'm not sure how deal with the rational function because I know I need to have all of the x terms inside the summation and create powers of x that are all the same to create a single summation. The denominator of a rational function does not separate, so how would adjust the summation to take this into account?
 
Physics news on Phys.org
Substitute the series into the original equation, not the one with x2+1 in the denominators.

(I'm not sure exactly what your question is, but I took a stab at what I thought you meant.)