Does someone have an example of a Sturm-Liouville problem on $\mathbb{R}$ with real coefficients that has an infinite point spectrum in $(-\infty,0]$ and continuous spectrum equal to $[0,\infty)$?
2026-03-29 19:09:57.1774811397
A Sturm-Liouville Problem with continuous spectrum and infinite point spectrum?
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