Solve this equation in Sturm-Liouville. \(\displaystyle{\left({1}-{x}^{{2}}\right)}{y}{''}-{x}{y}'+\lambda{y}={0}\) My solution: \(\displaystyle\mu{\left({1}-{x}^{{2}}\right)}{y}{''}-\mu{x}{y}'+\mu\lambda{y}={\left({p}{y}'\right)}'+{\left(\lambda{r}-{q}\right)}{y}\)

juctommaccedo662f

juctommaccedo662f

Answered question

2022-03-22

Solve this equation in Sturm-Liouville.
(1x2)yxy+λy=0
My solution:
μ(1x2)yμxy+μλy=(py)+(λrq)y
μ(1x2)yμxy+μλy=py+py+(λrq)y
p=μx,p=μ(1x2)pp=x1x2ln(p)=12ln|1x2|p=1(|1x2|)
Then μ=1(1x2)3
1(1x2)2y1(1x2)3xy+1(1x2)3λy=py+py+(λrq)y

Answer & Explanation

diocedss33

diocedss33

Beginner2022-03-23Added 12 answers

Explanation:
First, denote P(x)=1x2;,;;Q(x)=xeQPdx=e122x1x2dx=elog|1x2|12=1x2
so your integration factor (this could in fact better be called The S-L factor...) is
1PeQPdx=11x21x2=(1x2)12
Multiply now the whole diff. equation by it and get:
1x2,yx1x2y+λ11x2y=0
((1x2)12y)+λ1x2,y=0
and there you have your diff. eq. in Sturm-Liouville normal form.

Do you have a similar question?

Recalculate according to your conditions!

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?