Polynomial sequences related to Chebyshev polynomials and the minimal polynomial of $2\cos (2\ddot{I}€/n)$

Mamoru Doi

In this paper we consider the minimal polynomial $\ddot{I}{ˆ}_n(x)$ of $2\cos (2\ddot{I}€/n)$. We introduce some polynomial sequences with the same recurrence relation as the rescaled Chebyshev po…