Isometric and selfadjoint operators on a vector space with nondegenerate diagonalizable form

Jonathan V. Caalim, Vyacheslav Futorny, Vladimir V. Sergeichuk +1

Let $V$ be a vector space over a field $\mathbb{F}$ with scalar product given by a nondegenerate sesquilinear form whose matrix is diagonal in some basis. If $\mathbb{F}=\mathbb{C}$,…