Properties

Label 637.2.f.f
Level $637$
Weight $2$
Character orbit 637.f
Analytic conductor $5.086$
Analytic rank $0$
Dimension $4$
CM no
Inner twists $2$

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Newspace parameters

Level: \( N \) \(=\) \( 637 = 7^{2} \cdot 13 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 637.f (of order \(3\), degree \(2\), minimal)

Newform invariants

Self dual: no
Analytic conductor: \(5.08647060876\)
Analytic rank: \(0\)
Dimension: \(4\)
Relative dimension: \(2\) over \(\Q(\zeta_{3})\)
Coefficient field: \(\Q(\sqrt{2}, \sqrt{-3})\)
Defining polynomial: \(x^{4} + 2 x^{2} + 4\)
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

$q$-expansion

Coefficients of the \(q\)-expansion are expressed in terms of a basis \(1,\beta_1,\beta_2,\beta_3\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( 1 + \beta_{1} + \beta_{2} ) q^{2} + \beta_{1} q^{3} + ( 2 \beta_{1} + \beta_{2} + 2 \beta_{3} ) q^{4} + ( 1 - 2 \beta_{3} ) q^{5} + ( \beta_{1} + 2 \beta_{2} + \beta_{3} ) q^{6} + ( -3 + \beta_{3} ) q^{8} -\beta_{2} q^{9} +O(q^{10})\) \( q + ( 1 + \beta_{1} + \beta_{2} ) q^{2} + \beta_{1} q^{3} + ( 2 \beta_{1} + \beta_{2} + 2 \beta_{3} ) q^{4} + ( 1 - 2 \beta_{3} ) q^{5} + ( \beta_{1} + 2 \beta_{2} + \beta_{3} ) q^{6} + ( -3 + \beta_{3} ) q^{8} -\beta_{2} q^{9} + ( 5 + 3 \beta_{1} + 5 \beta_{2} ) q^{10} + ( -2 - \beta_{1} - 2 \beta_{2} ) q^{11} + ( -4 + \beta_{3} ) q^{12} + ( -3 + \beta_{2} ) q^{13} + ( 4 + \beta_{1} + 4 \beta_{2} ) q^{15} + ( -3 - 3 \beta_{2} ) q^{16} + ( 2 \beta_{1} - 3 \beta_{2} + 2 \beta_{3} ) q^{17} + ( 1 - \beta_{3} ) q^{18} + 6 \beta_{2} q^{19} + ( 4 \beta_{1} + 9 \beta_{2} + 4 \beta_{3} ) q^{20} + ( -3 \beta_{1} - 4 \beta_{2} - 3 \beta_{3} ) q^{22} -\beta_{1} q^{23} + ( -2 - 3 \beta_{1} - 2 \beta_{2} ) q^{24} + ( 4 - 4 \beta_{3} ) q^{25} + ( -4 - 3 \beta_{1} - 3 \beta_{2} + \beta_{3} ) q^{26} -4 \beta_{3} q^{27} + ( -7 - 2 \beta_{1} - 7 \beta_{2} ) q^{29} + ( 5 \beta_{1} + 6 \beta_{2} + 5 \beta_{3} ) q^{30} + ( 4 - \beta_{3} ) q^{31} + ( -\beta_{1} + 3 \beta_{2} - \beta_{3} ) q^{32} + ( -2 \beta_{1} - 2 \beta_{2} - 2 \beta_{3} ) q^{33} + ( -1 - \beta_{3} ) q^{34} + ( 1 + 2 \beta_{1} + \beta_{2} ) q^{36} + ( 1 - 6 \beta_{1} + \beta_{2} ) q^{37} + ( -6 + 6 \beta_{3} ) q^{38} + ( -3 \beta_{1} + \beta_{3} ) q^{39} + ( -7 + 7 \beta_{3} ) q^{40} + ( -3 - 2 \beta_{1} - 3 \beta_{2} ) q^{41} + ( -\beta_{1} + 2 \beta_{2} - \beta_{3} ) q^{43} + ( 6 - 5 \beta_{3} ) q^{44} + ( -2 \beta_{1} - \beta_{2} - 2 \beta_{3} ) q^{45} + ( -\beta_{1} - 2 \beta_{2} - \beta_{3} ) q^{46} + ( 2 - 4 \beta_{3} ) q^{47} + ( -3 \beta_{1} - 3 \beta_{3} ) q^{48} + ( 12 + 8 \beta_{1} + 12 \beta_{2} ) q^{50} + ( -4 - 3 \beta_{3} ) q^{51} + ( -1 - 8 \beta_{1} - 4 \beta_{2} - 6 \beta_{3} ) q^{52} -3 q^{53} + ( 8 + 4 \beta_{1} + 8 \beta_{2} ) q^{54} + ( -6 - 5 \beta_{1} - 6 \beta_{2} ) q^{55} + 6 \beta_{3} q^{57} + ( -9 \beta_{1} - 11 \beta_{2} - 9 \beta_{3} ) q^{58} + ( 3 \beta_{1} - 6 \beta_{2} + 3 \beta_{3} ) q^{59} + ( -8 + 9 \beta_{3} ) q^{60} + ( 2 \beta_{1} + 7 \beta_{2} + 2 \beta_{3} ) q^{61} + ( 6 + 5 \beta_{1} + 6 \beta_{2} ) q^{62} + ( -7 + 2 \beta_{3} ) q^{64} + ( -3 + 2 \beta_{1} + \beta_{2} + 8 \beta_{3} ) q^{65} + ( 6 - 4 \beta_{3} ) q^{66} + 3 \beta_{1} q^{67} + ( -5 + 4 \beta_{1} - 5 \beta_{2} ) q^{68} -2 \beta_{2} q^{69} + ( 4 \beta_{1} - 6 \beta_{2} + 4 \beta_{3} ) q^{71} + ( \beta_{1} + 3 \beta_{2} + \beta_{3} ) q^{72} + ( -5 - 4 \beta_{3} ) q^{73} + ( -5 \beta_{1} - 11 \beta_{2} - 5 \beta_{3} ) q^{74} + ( 8 + 4 \beta_{1} + 8 \beta_{2} ) q^{75} + ( -6 - 12 \beta_{1} - 6 \beta_{2} ) q^{76} + ( -2 - 4 \beta_{1} - 8 \beta_{2} - 3 \beta_{3} ) q^{78} + ( 6 - 3 \beta_{3} ) q^{79} + ( -3 - 6 \beta_{1} - 3 \beta_{2} ) q^{80} + ( 5 + 5 \beta_{2} ) q^{81} + ( -5 \beta_{1} - 7 \beta_{2} - 5 \beta_{3} ) q^{82} + ( -6 + 5 \beta_{3} ) q^{83} + ( -4 \beta_{1} + 5 \beta_{2} - 4 \beta_{3} ) q^{85} + \beta_{3} q^{86} + ( -7 \beta_{1} - 4 \beta_{2} - 7 \beta_{3} ) q^{87} + ( 8 + 5 \beta_{1} + 8 \beta_{2} ) q^{88} + ( -4 + 8 \beta_{1} - 4 \beta_{2} ) q^{89} + ( 5 - 3 \beta_{3} ) q^{90} + ( 4 - \beta_{3} ) q^{92} + ( 2 + 4 \beta_{1} + 2 \beta_{2} ) q^{93} + ( 10 + 6 \beta_{1} + 10 \beta_{2} ) q^{94} + ( 12 \beta_{1} + 6 \beta_{2} + 12 \beta_{3} ) q^{95} + ( 2 + 3 \beta_{3} ) q^{96} + ( 2 \beta_{1} - 8 \beta_{2} + 2 \beta_{3} ) q^{97} + ( -2 + \beta_{3} ) q^{99} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4q + 2q^{2} - 2q^{4} + 4q^{5} - 4q^{6} - 12q^{8} + 2q^{9} + O(q^{10}) \) \( 4q + 2q^{2} - 2q^{4} + 4q^{5} - 4q^{6} - 12q^{8} + 2q^{9} + 10q^{10} - 4q^{11} - 16q^{12} - 14q^{13} + 8q^{15} - 6q^{16} + 6q^{17} + 4q^{18} - 12q^{19} - 18q^{20} + 8q^{22} - 4q^{24} + 16q^{25} - 10q^{26} - 14q^{29} - 12q^{30} + 16q^{31} - 6q^{32} + 4q^{33} - 4q^{34} + 2q^{36} + 2q^{37} - 24q^{38} - 28q^{40} - 6q^{41} - 4q^{43} + 24q^{44} + 2q^{45} + 4q^{46} + 8q^{47} + 24q^{50} - 16q^{51} + 4q^{52} - 12q^{53} + 16q^{54} - 12q^{55} + 22q^{58} + 12q^{59} - 32q^{60} - 14q^{61} + 12q^{62} - 28q^{64} - 14q^{65} + 24q^{66} - 10q^{68} + 4q^{69} + 12q^{71} - 6q^{72} - 20q^{73} + 22q^{74} + 16q^{75} - 12q^{76} + 8q^{78} + 24q^{79} - 6q^{80} + 10q^{81} + 14q^{82} - 24q^{83} - 10q^{85} + 8q^{87} + 16q^{88} - 8q^{89} + 20q^{90} + 16q^{92} + 4q^{93} + 20q^{94} - 12q^{95} + 8q^{96} + 16q^{97} - 8q^{99} + O(q^{100}) \)

Basis of coefficient ring in terms of a root \(\nu\) of \(x^{4} + 2 x^{2} + 4\):

\(\beta_{0}\)\(=\)\( 1 \)
\(\beta_{1}\)\(=\)\( \nu \)
\(\beta_{2}\)\(=\)\( \nu^{2} \)\(/2\)
\(\beta_{3}\)\(=\)\( \nu^{3} \)\(/2\)
\(1\)\(=\)\(\beta_0\)
\(\nu\)\(=\)\(\beta_{1}\)
\(\nu^{2}\)\(=\)\(2 \beta_{2}\)
\(\nu^{3}\)\(=\)\(2 \beta_{3}\)

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/637\mathbb{Z}\right)^\times\).

\(n\) \(197\) \(248\)
\(\chi(n)\) \(\beta_{2}\) \(1\)

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 \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
295.1
−0.707107 + 1.22474i
0.707107 1.22474i
−0.707107 1.22474i
0.707107 + 1.22474i
−0.207107 + 0.358719i −0.707107 + 1.22474i 0.914214 + 1.58346i −1.82843 −0.292893 0.507306i 0 −1.58579 0.500000 + 0.866025i 0.378680 0.655892i
295.2 1.20711 2.09077i 0.707107 1.22474i −1.91421 3.31552i 3.82843 −1.70711 2.95680i 0 −4.41421 0.500000 + 0.866025i 4.62132 8.00436i
393.1 −0.207107 0.358719i −0.707107 1.22474i 0.914214 1.58346i −1.82843 −0.292893 + 0.507306i 0 −1.58579 0.500000 0.866025i 0.378680 + 0.655892i
393.2 1.20711 + 2.09077i 0.707107 + 1.22474i −1.91421 + 3.31552i 3.82843 −1.70711 + 2.95680i 0 −4.41421 0.500000 0.866025i 4.62132 + 8.00436i
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
13.c even 3 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 637.2.f.f yes 4
7.b odd 2 1 637.2.f.e 4
7.c even 3 1 637.2.g.f 4
7.c even 3 1 637.2.h.b 4
7.d odd 6 1 637.2.g.g 4
7.d odd 6 1 637.2.h.c 4
13.c even 3 1 inner 637.2.f.f yes 4
13.c even 3 1 8281.2.a.p 2
13.e even 6 1 8281.2.a.x 2
91.g even 3 1 637.2.h.b 4
91.h even 3 1 637.2.g.f 4
91.m odd 6 1 637.2.h.c 4
91.n odd 6 1 637.2.f.e 4
91.n odd 6 1 8281.2.a.o 2
91.t odd 6 1 8281.2.a.y 2
91.v odd 6 1 637.2.g.g 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
637.2.f.e 4 7.b odd 2 1
637.2.f.e 4 91.n odd 6 1
637.2.f.f yes 4 1.a even 1 1 trivial
637.2.f.f yes 4 13.c even 3 1 inner
637.2.g.f 4 7.c even 3 1
637.2.g.f 4 91.h even 3 1
637.2.g.g 4 7.d odd 6 1
637.2.g.g 4 91.v odd 6 1
637.2.h.b 4 7.c even 3 1
637.2.h.b 4 91.g even 3 1
637.2.h.c 4 7.d odd 6 1
637.2.h.c 4 91.m odd 6 1
8281.2.a.o 2 91.n odd 6 1
8281.2.a.p 2 13.c even 3 1
8281.2.a.x 2 13.e even 6 1
8281.2.a.y 2 91.t odd 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(637, [\chi])\):

\( T_{2}^{4} - 2 T_{2}^{3} + 5 T_{2}^{2} + 2 T_{2} + 1 \)
\( T_{3}^{4} + 2 T_{3}^{2} + 4 \)
\( T_{5}^{2} - 2 T_{5} - 7 \)

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( 1 + 2 T + 5 T^{2} - 2 T^{3} + T^{4} \)
$3$ \( 4 + 2 T^{2} + T^{4} \)
$5$ \( ( -7 - 2 T + T^{2} )^{2} \)
$7$ \( T^{4} \)
$11$ \( 4 + 8 T + 14 T^{2} + 4 T^{3} + T^{4} \)
$13$ \( ( 13 + 7 T + T^{2} )^{2} \)
$17$ \( 1 - 6 T + 35 T^{2} - 6 T^{3} + T^{4} \)
$19$ \( ( 36 + 6 T + T^{2} )^{2} \)
$23$ \( 4 + 2 T^{2} + T^{4} \)
$29$ \( 1681 + 574 T + 155 T^{2} + 14 T^{3} + T^{4} \)
$31$ \( ( 14 - 8 T + T^{2} )^{2} \)
$37$ \( 5041 + 142 T + 75 T^{2} - 2 T^{3} + T^{4} \)
$41$ \( 1 + 6 T + 35 T^{2} + 6 T^{3} + T^{4} \)
$43$ \( 4 + 8 T + 14 T^{2} + 4 T^{3} + T^{4} \)
$47$ \( ( -28 - 4 T + T^{2} )^{2} \)
$53$ \( ( 3 + T )^{4} \)
$59$ \( 324 - 216 T + 126 T^{2} - 12 T^{3} + T^{4} \)
$61$ \( 1681 + 574 T + 155 T^{2} + 14 T^{3} + T^{4} \)
$67$ \( 324 + 18 T^{2} + T^{4} \)
$71$ \( 16 - 48 T + 140 T^{2} - 12 T^{3} + T^{4} \)
$73$ \( ( -7 + 10 T + T^{2} )^{2} \)
$79$ \( ( 18 - 12 T + T^{2} )^{2} \)
$83$ \( ( -14 + 12 T + T^{2} )^{2} \)
$89$ \( 12544 - 896 T + 176 T^{2} + 8 T^{3} + T^{4} \)
$97$ \( 3136 - 896 T + 200 T^{2} - 16 T^{3} + T^{4} \)
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