Properties

Label 384.4.f.b
Level $384$
Weight $4$
Character orbit 384.f
Analytic conductor $22.657$
Analytic rank $0$
Dimension $4$
CM discriminant -8
Inner twists $8$

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Newspace parameters

Level: \( N \) \(=\) \( 384 = 2^{7} \cdot 3 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 384.f (of order \(2\), degree \(1\), minimal)

Newform invariants

Self dual: no
Analytic conductor: \(22.6567334422\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(\zeta_{8})\)
Defining polynomial: \(x^{4} + 1\)
Coefficient ring: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 2^{3}\cdot 3^{2} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{U}(1)[D_{2}]$

$q$-expansion

Coefficients of the \(q\)-expansion are expressed in terms of a primitive root of unity \(\zeta_{8}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( -\zeta_{8} + 5 \zeta_{8}^{2} + \zeta_{8}^{3} ) q^{3} + ( -23 - 10 \zeta_{8} - 10 \zeta_{8}^{3} ) q^{9} +O(q^{10})\) \( q + ( -\zeta_{8} + 5 \zeta_{8}^{2} + \zeta_{8}^{3} ) q^{3} + ( -23 - 10 \zeta_{8} - 10 \zeta_{8}^{3} ) q^{9} -18 \zeta_{8}^{2} q^{11} + ( -76 \zeta_{8} - 76 \zeta_{8}^{3} ) q^{17} + ( 90 \zeta_{8} - 90 \zeta_{8}^{3} ) q^{19} -125 q^{25} + ( 73 \zeta_{8} - 95 \zeta_{8}^{2} - 73 \zeta_{8}^{3} ) q^{27} + ( 90 + 18 \zeta_{8} + 18 \zeta_{8}^{3} ) q^{33} + ( 40 \zeta_{8} + 40 \zeta_{8}^{3} ) q^{41} + ( 342 \zeta_{8} - 342 \zeta_{8}^{3} ) q^{43} + 343 q^{49} + ( 380 \zeta_{8} + 152 \zeta_{8}^{2} - 380 \zeta_{8}^{3} ) q^{51} + ( -180 + 450 \zeta_{8} + 450 \zeta_{8}^{3} ) q^{57} -846 \zeta_{8}^{2} q^{59} + ( 774 \zeta_{8} - 774 \zeta_{8}^{3} ) q^{67} + 430 q^{73} + ( 125 \zeta_{8} - 625 \zeta_{8}^{2} - 125 \zeta_{8}^{3} ) q^{75} + ( 329 + 460 \zeta_{8} + 460 \zeta_{8}^{3} ) q^{81} + 1350 \zeta_{8}^{2} q^{83} + ( -940 \zeta_{8} - 940 \zeta_{8}^{3} ) q^{89} -1910 q^{97} + ( -180 \zeta_{8} + 414 \zeta_{8}^{2} + 180 \zeta_{8}^{3} ) q^{99} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4q - 92q^{9} + O(q^{10}) \) \( 4q - 92q^{9} - 500q^{25} + 360q^{33} + 1372q^{49} - 720q^{57} + 1720q^{73} + 1316q^{81} - 7640q^{97} + O(q^{100}) \)

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/384\mathbb{Z}\right)^\times\).

\(n\) \(127\) \(133\) \(257\)
\(\chi(n)\) \(-1\) \(-1\) \(-1\)

Embeddings

For each embedding \(\iota_m\) of the coefficient field, the values \(\iota_m(a_n)\) are shown below.

For more information on an embedded modular form you can click on its label.

Label \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
191.1
0.707107 0.707107i
0.707107 + 0.707107i
−0.707107 + 0.707107i
−0.707107 0.707107i
0 −1.41421 5.00000i 0 0 0 0 0 −23.0000 + 14.1421i 0
191.2 0 −1.41421 + 5.00000i 0 0 0 0 0 −23.0000 14.1421i 0
191.3 0 1.41421 5.00000i 0 0 0 0 0 −23.0000 14.1421i 0
191.4 0 1.41421 + 5.00000i 0 0 0 0 0 −23.0000 + 14.1421i 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
8.d odd 2 1 CM by \(\Q(\sqrt{-2}) \)
3.b odd 2 1 inner
4.b odd 2 1 inner
8.b even 2 1 inner
12.b even 2 1 inner
24.f even 2 1 inner
24.h odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 384.4.f.b 4
3.b odd 2 1 inner 384.4.f.b 4
4.b odd 2 1 inner 384.4.f.b 4
8.b even 2 1 inner 384.4.f.b 4
8.d odd 2 1 CM 384.4.f.b 4
12.b even 2 1 inner 384.4.f.b 4
16.e even 4 1 768.4.c.a 2
16.e even 4 1 768.4.c.j 2
16.f odd 4 1 768.4.c.a 2
16.f odd 4 1 768.4.c.j 2
24.f even 2 1 inner 384.4.f.b 4
24.h odd 2 1 inner 384.4.f.b 4
48.i odd 4 1 768.4.c.a 2
48.i odd 4 1 768.4.c.j 2
48.k even 4 1 768.4.c.a 2
48.k even 4 1 768.4.c.j 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
384.4.f.b 4 1.a even 1 1 trivial
384.4.f.b 4 3.b odd 2 1 inner
384.4.f.b 4 4.b odd 2 1 inner
384.4.f.b 4 8.b even 2 1 inner
384.4.f.b 4 8.d odd 2 1 CM
384.4.f.b 4 12.b even 2 1 inner
384.4.f.b 4 24.f even 2 1 inner
384.4.f.b 4 24.h odd 2 1 inner
768.4.c.a 2 16.e even 4 1
768.4.c.a 2 16.f odd 4 1
768.4.c.a 2 48.i odd 4 1
768.4.c.a 2 48.k even 4 1
768.4.c.j 2 16.e even 4 1
768.4.c.j 2 16.f odd 4 1
768.4.c.j 2 48.i odd 4 1
768.4.c.j 2 48.k even 4 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(384, [\chi])\):

\( T_{5} \)
\( T_{23} \)

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} \)
$3$ \( 729 + 46 T^{2} + T^{4} \)
$5$ \( T^{4} \)
$7$ \( T^{4} \)
$11$ \( ( 324 + T^{2} )^{2} \)
$13$ \( T^{4} \)
$17$ \( ( 11552 + T^{2} )^{2} \)
$19$ \( ( -16200 + T^{2} )^{2} \)
$23$ \( T^{4} \)
$29$ \( T^{4} \)
$31$ \( T^{4} \)
$37$ \( T^{4} \)
$41$ \( ( 3200 + T^{2} )^{2} \)
$43$ \( ( -233928 + T^{2} )^{2} \)
$47$ \( T^{4} \)
$53$ \( T^{4} \)
$59$ \( ( 715716 + T^{2} )^{2} \)
$61$ \( T^{4} \)
$67$ \( ( -1198152 + T^{2} )^{2} \)
$71$ \( T^{4} \)
$73$ \( ( -430 + T )^{4} \)
$79$ \( T^{4} \)
$83$ \( ( 1822500 + T^{2} )^{2} \)
$89$ \( ( 1767200 + T^{2} )^{2} \)
$97$ \( ( 1910 + T )^{4} \)
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