On the discrete mean square of certain hybrid sum involving $a_{\mathbb{K}}(n)$

Ekta Soni, M. S. Datt, A. Sankaranarayanan

Let $\mathbb{K}$ be a non-normal algebraic number field of cubic degree given by the polynomial $x^3+a{x}^2+bx+c$ of discriminant $D_{\mathbb{K}}<0$. For sufficiently large $x$,…