Zeros of orthogonal polynomials on the real line

Sergey A. Denisov, Barry Simon

Let $p_n(x)$ be orthogonal polynomials associated to a measure $d\mu$ of compact support in $R$. If $E\notin supp(d\mu )$, we show there is a $\delta >0$ so that for all $n$, either $p_n$ or…