# Physical applications of Chebyshev's equation.

As reported by Wikipedia, Chebyshev's equation is the second order linear differential equation $$(1-x^2) {d^2 y \over d x^2} - x {d y \over d x} + p^2 y = 0$$ where $p$ is a real constant.

Has equation above physical meaning? That is, is it used to model some physical phenomena?