Abstract
Let $\varepsilon$ be a quartic algebraic unit. We give necessary and sufficient conditions for (i) the quartic number field $K ={\mathbb Q}(\varepsilon)$ to contain an imaginary quadratic subfield, and (ii) for the ring of algebraic integers of $K$ to b
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have