$\lim_{n \to \infty}\int_{-n}^{n}f(x) p_n (x) e^{-x^2}dx =0$?

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I'm confused about Orthonormal basis for $L^2(\mathbb{R})$ by Hermite Polynomials of the answer. ( The satement $ A_{n,m(n)} \rightarrow -\int f(x)^2 e^{-x^2} dx$ )

The following hold?

Let $f \in L^2(\mathbb{R})$ satisfying $ \int_{-\infty}^{\infty} x^nf(x) e^{-x^2}dx=0 \ \forall n \in \mathbb{Z}_{\ge 0}$, and

$(p_n(x))$ be polynomial sequence. Then

$$\lim_{n \to \infty}\int_{-n}^{n}f(x) p_n (x) e^{-x^2}dx =0$$

Any advise would be appreciated.