Group table for the character group for $\textrm{Gal}(K/\mathbb{Q})$

$K$ is the global number field defined by \(x^{3} \) \(\mathstrut -\mathstrut x^{2} \) \(\mathstrut -\mathstrut 2 x \) \(\mathstrut +\mathstrut 1 \)

$\times$ \(\chi_{ 7 } ( 1, ·)\) \(\chi_{ 7 } ( 2, ·)\) \(\chi_{ 7 } ( 4, ·)\)
\(\chi_{ 7 }(1, ·)\) \(\chi_{ 7 } ( 1, ·)\) \(\chi_{ 7 } ( 2, ·)\) \(\chi_{ 7 } ( 4, ·)\)
\(\chi_{ 7 }(2, ·)\) \(\chi_{ 7 } ( 2, ·)\) \(\chi_{ 7 } ( 4, ·)\) \(\chi_{ 7 } ( 1, ·)\)
\(\chi_{ 7 }(4, ·)\) \(\chi_{ 7 } ( 4, ·)\) \(\chi_{ 7 } ( 1, ·)\) \(\chi_{ 7 } ( 2, ·)\)