Bounday-Value Problem: Eigenvalue and Eigenfunctions

physicsfan24
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Homework Statement


This is the original question:
\frac{d^{2}y}{dx^{2}}-\frac{6x}{3x^{2}+1}\frac{dy}{dx}+\lambda(3x^{2}+1)^{2}y=0

(Hint: Let t=x^{3}+x)
y(0)=0
y(\pi)=02. The attempt at a solution
This might be all wrong, but this is all I can think of
\frac{dt}{dx}=3x^{2}+1

so \frac{d^{2}y}{dx^{2}}-\frac{6x}{\frac{dt}{dx}}\frac{dy}{dx}+\lambda(\frac{dt}{dx})^{2}y=0After this, I do not know how to proceed to eliminate d^{2}y/dx^{2}, much less what else to do. Help!
Thank you very much for your time,
-PhysicsFan24
 
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holy **** bro are you in my class, MIAMI DADE DEs?? LOL and were both on here lookin 4 help here.

check out my thread, its the whole paper lol. yo you got the answers for any of the others??
 
Umm, I'm in U of Virgina and this is an online HW question... Yes I am taking ODE. You're in my class?
 
nevermind. I am in Miami Florida. But I got the same question as you at the same time. One hell of a coincidence. Let me know if you find the answer, and you can check my thread too, I got the same question posted on there.
 
Thread 'Use greedy vertex coloring algorithm to prove the upper bound of χ'
Hi! I am struggling with the exercise I mentioned under "Homework statement". The exercise is about a specific "greedy vertex coloring algorithm". One definition (which matches what my book uses) can be found here: https://people.cs.uchicago.edu/~laci/HANDOUTS/greedycoloring.pdf Here is also a screenshot of the relevant parts of the linked PDF, i.e. the def. of the algorithm: Sadly I don't have much to show as far as a solution attempt goes, as I am stuck on how to proceed. I thought...
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