| The ring $R$ of algebraic integers of any algebraic number field contains a finite set of so-called {\em fundamental units} such, that every unit of $R$ is a power product of them, multiplied by a root of unity: |
The ring $R$ of algebraic integers of any algebraic number field contains a finite set of so-called {\em fundamental units} such, that every unit of $R$ is a power product of them, multiplied by a root of unity: |
