scu.6.10.1.31.a
Base Field
\(F = \) 3.1.3.4a2.2 \( = \mathbb{Q}_{ 3 }(a) = \mathbb{Q}_{ 3 }[x] / (x^{3} + 2\cdot 3 x^{2} + 4\cdot 3 )\)
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Description
supercuspidal unramified
Construction
\(
\tau = \chi \oplus \chi^{-1}
\), with the character \(\chi\) as below
Semistability defect
\( e = 6\)
Conductor exponent
\( v(N) = 10\)
Character Order
6
Inducing Field
The inertial type \(\tau\) is reducible, induced from a character of
\(K = F(b)\), with \(b\) a root of \(x^{2} + 2 x + 2 \)
Underlying Character
Character \(\chi^A:\mathcal O_K^\times \to \mathbb C^\times\) with the following properties:
Order
6
Conductor exponent
5
Values on generators of
\((\mathcal{O}_K/\mathfrak p^{ 5 })^\times/U_{\mathfrak{p}^{ 5 } }\)
, with \(\zeta=\frac{1+\sqrt{-3}}{2}\) a 6th root of unity
:
\(\begin{array}{l}
\chi^A\left((a^{2} + 4a - 2)b + 2a^{2} - 2a - 1 \right) &= \zeta^{ 3 }
\\
\chi^A\left((3a - 3)b + 4 \right) &= \zeta^{ 2 }
\\
\chi^A\left(a^{2}b + 1 \right) &= \zeta^{ 0 }
\end{array}
\)
Inertia Polynomial
The following polynomial defines a field \(L\) such that \(L^{un}\) is the fixed field of \(\tau\).
\( x^{12} + 12 x^{11} + (21a^{2} + 6 )x^{10} + (21a^{2} + 25 )x^{9} + (18a^{2} + 78 )x^{8} + (18a^{2} + 30 )x^{7} + (3a^{2} + 4a + 47 )x^{6} + (24a + 60 )x^{5} + (21a^{2} + 3a + 66 )x^{4} + (9a^{2} + 14a + 53 )x^{3} + (9a^{2} + 3a + 72 )x^{2} + (24a^{2} + 15a + 36 )x + 4a^{2} + 12a + 1 \)