Properties

Label 756.2.i.a
Level $756$
Weight $2$
Character orbit 756.i
Analytic conductor $6.037$
Analytic rank $0$
Dimension $2$
CM no
Inner twists $2$

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Newspace parameters

Level: \( N \) \(=\) \( 756 = 2^{2} \cdot 3^{3} \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 756.i (of order \(3\), degree \(2\), not minimal)

Newform invariants

Self dual: no
Analytic conductor: \(6.03669039281\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{-3}) \)
Defining polynomial: \(x^{2} - x + 1\)
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 252)
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

$q$-expansion

Coefficients of the \(q\)-expansion are expressed in terms of a primitive root of unity \(\zeta_{6}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( 2 - 2 \zeta_{6} ) q^{5} + ( -2 - \zeta_{6} ) q^{7} +O(q^{10})\) \( q + ( 2 - 2 \zeta_{6} ) q^{5} + ( -2 - \zeta_{6} ) q^{7} + 4 \zeta_{6} q^{11} -3 \zeta_{6} q^{13} + ( 7 - 7 \zeta_{6} ) q^{17} -5 \zeta_{6} q^{19} + ( 4 - 4 \zeta_{6} ) q^{23} + \zeta_{6} q^{25} + ( -1 + \zeta_{6} ) q^{29} -3 q^{31} + ( -6 + 4 \zeta_{6} ) q^{35} -11 \zeta_{6} q^{37} -9 \zeta_{6} q^{41} + ( -5 + 5 \zeta_{6} ) q^{43} -3 q^{47} + ( 3 + 5 \zeta_{6} ) q^{49} + ( 3 - 3 \zeta_{6} ) q^{53} + 8 q^{55} + 7 q^{59} + 3 q^{61} -6 q^{65} + 13 q^{67} + 8 q^{71} + ( -7 + 7 \zeta_{6} ) q^{73} + ( 4 - 12 \zeta_{6} ) q^{77} -9 q^{79} + ( 1 - \zeta_{6} ) q^{83} -14 \zeta_{6} q^{85} + 15 \zeta_{6} q^{89} + ( -3 + 9 \zeta_{6} ) q^{91} -10 q^{95} + ( 17 - 17 \zeta_{6} ) q^{97} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2q + 2q^{5} - 5q^{7} + O(q^{10}) \) \( 2q + 2q^{5} - 5q^{7} + 4q^{11} - 3q^{13} + 7q^{17} - 5q^{19} + 4q^{23} + q^{25} - q^{29} - 6q^{31} - 8q^{35} - 11q^{37} - 9q^{41} - 5q^{43} - 6q^{47} + 11q^{49} + 3q^{53} + 16q^{55} + 14q^{59} + 6q^{61} - 12q^{65} + 26q^{67} + 16q^{71} - 7q^{73} - 4q^{77} - 18q^{79} + q^{83} - 14q^{85} + 15q^{89} + 3q^{91} - 20q^{95} + 17q^{97} + O(q^{100}) \)

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/756\mathbb{Z}\right)^\times\).

\(n\) \(29\) \(325\) \(379\)
\(\chi(n)\) \(-\zeta_{6}\) \(-\zeta_{6}\) \(1\)

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 \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
37.1
0.500000 0.866025i
0.500000 + 0.866025i
0 0 0 1.00000 + 1.73205i 0 −2.50000 + 0.866025i 0 0 0
613.1 0 0 0 1.00000 1.73205i 0 −2.50000 0.866025i 0 0 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
63.h even 3 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 756.2.i.a 2
3.b odd 2 1 252.2.i.a 2
4.b odd 2 1 3024.2.q.e 2
7.b odd 2 1 5292.2.i.b 2
7.c even 3 1 756.2.l.a 2
7.c even 3 1 5292.2.j.c 2
7.d odd 6 1 5292.2.j.b 2
7.d odd 6 1 5292.2.l.b 2
9.c even 3 1 756.2.l.a 2
9.c even 3 1 2268.2.k.b 2
9.d odd 6 1 252.2.l.a yes 2
9.d odd 6 1 2268.2.k.a 2
12.b even 2 1 1008.2.q.f 2
21.c even 2 1 1764.2.i.b 2
21.g even 6 1 1764.2.j.a 2
21.g even 6 1 1764.2.l.b 2
21.h odd 6 1 252.2.l.a yes 2
21.h odd 6 1 1764.2.j.c 2
28.g odd 6 1 3024.2.t.b 2
36.f odd 6 1 3024.2.t.b 2
36.h even 6 1 1008.2.t.b 2
63.g even 3 1 2268.2.k.b 2
63.g even 3 1 5292.2.j.c 2
63.h even 3 1 inner 756.2.i.a 2
63.i even 6 1 1764.2.i.b 2
63.j odd 6 1 252.2.i.a 2
63.k odd 6 1 5292.2.j.b 2
63.l odd 6 1 5292.2.l.b 2
63.n odd 6 1 1764.2.j.c 2
63.n odd 6 1 2268.2.k.a 2
63.o even 6 1 1764.2.l.b 2
63.s even 6 1 1764.2.j.a 2
63.t odd 6 1 5292.2.i.b 2
84.n even 6 1 1008.2.t.b 2
252.u odd 6 1 3024.2.q.e 2
252.bb even 6 1 1008.2.q.f 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
252.2.i.a 2 3.b odd 2 1
252.2.i.a 2 63.j odd 6 1
252.2.l.a yes 2 9.d odd 6 1
252.2.l.a yes 2 21.h odd 6 1
756.2.i.a 2 1.a even 1 1 trivial
756.2.i.a 2 63.h even 3 1 inner
756.2.l.a 2 7.c even 3 1
756.2.l.a 2 9.c even 3 1
1008.2.q.f 2 12.b even 2 1
1008.2.q.f 2 252.bb even 6 1
1008.2.t.b 2 36.h even 6 1
1008.2.t.b 2 84.n even 6 1
1764.2.i.b 2 21.c even 2 1
1764.2.i.b 2 63.i even 6 1
1764.2.j.a 2 21.g even 6 1
1764.2.j.a 2 63.s even 6 1
1764.2.j.c 2 21.h odd 6 1
1764.2.j.c 2 63.n odd 6 1
1764.2.l.b 2 21.g even 6 1
1764.2.l.b 2 63.o even 6 1
2268.2.k.a 2 9.d odd 6 1
2268.2.k.a 2 63.n odd 6 1
2268.2.k.b 2 9.c even 3 1
2268.2.k.b 2 63.g even 3 1
3024.2.q.e 2 4.b odd 2 1
3024.2.q.e 2 252.u odd 6 1
3024.2.t.b 2 28.g odd 6 1
3024.2.t.b 2 36.f odd 6 1
5292.2.i.b 2 7.b odd 2 1
5292.2.i.b 2 63.t odd 6 1
5292.2.j.b 2 7.d odd 6 1
5292.2.j.b 2 63.k odd 6 1
5292.2.j.c 2 7.c even 3 1
5292.2.j.c 2 63.g even 3 1
5292.2.l.b 2 7.d odd 6 1
5292.2.l.b 2 63.l odd 6 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{2} - 2 T_{5} + 4 \) acting on \(S_{2}^{\mathrm{new}}(756, [\chi])\).

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ 1
$3$ 1
$5$ \( 1 - 2 T - T^{2} - 10 T^{3} + 25 T^{4} \)
$7$ \( 1 + 5 T + 7 T^{2} \)
$11$ \( 1 - 4 T + 5 T^{2} - 44 T^{3} + 121 T^{4} \)
$13$ \( 1 + 3 T - 4 T^{2} + 39 T^{3} + 169 T^{4} \)
$17$ \( 1 - 7 T + 32 T^{2} - 119 T^{3} + 289 T^{4} \)
$19$ \( 1 + 5 T + 6 T^{2} + 95 T^{3} + 361 T^{4} \)
$23$ \( 1 - 4 T - 7 T^{2} - 92 T^{3} + 529 T^{4} \)
$29$ \( 1 + T - 28 T^{2} + 29 T^{3} + 841 T^{4} \)
$31$ \( ( 1 + 3 T + 31 T^{2} )^{2} \)
$37$ \( ( 1 + T + 37 T^{2} )( 1 + 10 T + 37 T^{2} ) \)
$41$ \( 1 + 9 T + 40 T^{2} + 369 T^{3} + 1681 T^{4} \)
$43$ \( ( 1 - 8 T + 43 T^{2} )( 1 + 13 T + 43 T^{2} ) \)
$47$ \( ( 1 + 3 T + 47 T^{2} )^{2} \)
$53$ \( 1 - 3 T - 44 T^{2} - 159 T^{3} + 2809 T^{4} \)
$59$ \( ( 1 - 7 T + 59 T^{2} )^{2} \)
$61$ \( ( 1 - 3 T + 61 T^{2} )^{2} \)
$67$ \( ( 1 - 13 T + 67 T^{2} )^{2} \)
$71$ \( ( 1 - 8 T + 71 T^{2} )^{2} \)
$73$ \( ( 1 - 10 T + 73 T^{2} )( 1 + 17 T + 73 T^{2} ) \)
$79$ \( ( 1 + 9 T + 79 T^{2} )^{2} \)
$83$ \( 1 - T - 82 T^{2} - 83 T^{3} + 6889 T^{4} \)
$89$ \( 1 - 15 T + 136 T^{2} - 1335 T^{3} + 7921 T^{4} \)
$97$ \( 1 - 17 T + 192 T^{2} - 1649 T^{3} + 9409 T^{4} \)
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