Sturm–Liouville theory: Difference between revisions

In [[mathematics]] and its applications, a '''Sturm–Liouville problem''' is a second-order linear [[differential equation|ordinary differential equation]] of the form:

<math display="block">\frac{\mathrm{d}}{\mathrm{d}x}\!\!\left[\,p(x)\frac{\mathrm{d}y}{\mathrm{d}x}\right] + q(x)y = -\lambda\, w(x)y, </math>