Sturm Liouville Problem: introduction and meaning

For a better understanding, please watch the entire playlist for Hermitian Operators and Sturm Liouville problem here:
https://www.youtube.com/playlist?list=PLP1OdTlavJNteH5cGl1KtL6MVlQSBQWxv
My lecture videos are organized at:
http://100worksheets.com/mathingsconsidered.html

Видео Sturm Liouville Problem: introduction and meaning канала Daniel An