Galyautdinov I.G.; Lavrentyeva E.E.
(2020)
© 2020, Allerton Press, Inc. Using the fundamental basis of the field $L_9=\mathbb{Q} (2\cos(\pi/9)),$ the form $N_{L_9}(\gamma)=f(x, y, z)$ is found and the Diophantine equation $f(x,y,z)=a$ is solved. A similar scheme ...