Question

(Sturm-Liouville) Can somebody explain to me part of this video on SLDE's linked below? More information below.

Answer 1

At the end of the video (~10 minutes), the second part of the problem, I have no idea how he indicated or demonstrated that the integral of u^2*r must be positive, or any other terms that he said must be nonnegative. By what basis was that shown?

https://www.youtube.com/watch?v=2Y5-s4_4zvg

Answer 2

@dan815

Answer 3

(Part II starts at about 7 minutes in)

Answer 4

he's starting with condition that p and r>0

Answer 5

Oh, okay, I didn't notice; guess I should've been taking a closer look at the beginning, skipped to where he started the problem. Alright, yeah, that makes sense.

Answer 6

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