Properties

Label 7440.2.a.bd.1.2
Level $7440$
Weight $2$
Character 7440.1
Self dual yes
Analytic conductor $59.409$
Analytic rank $0$
Dimension $2$
CM no
Inner twists $1$

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Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [7440,2,Mod(1,7440)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content magma://Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("7440.1"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(7440, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0, 0, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 7440 = 2^{4} \cdot 3 \cdot 5 \cdot 31 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 7440.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,0,-2,0,-2,0,1,0,2,0,-5,0,12,0,2,0,-8] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(17)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(59.4086991038\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{65}) \)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x - 16 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 930)
Fricke sign: \(-1\)
Sato-Tate group: $\mathrm{SU}(2)$

Embedding invariants

Embedding label 1.2
Root \(4.53113\) of defining polynomial
Character \(\chi\) \(=\) 7440.1

$q$-expansion

Copy content comment:q-expansion
 
Copy content sage:f.q_expansion() # note that sage often uses an isomorphic number field
 
Copy content gp:mfcoefs(f, 20)
 
\(f(q)\) \(=\) \(q-1.00000 q^{3} -1.00000 q^{5} +4.53113 q^{7} +1.00000 q^{9} -6.53113 q^{11} +6.00000 q^{13} +1.00000 q^{15} -4.00000 q^{17} -4.53113 q^{19} -4.53113 q^{21} -6.53113 q^{23} +1.00000 q^{25} -1.00000 q^{27} -1.00000 q^{31} +6.53113 q^{33} -4.53113 q^{35} -7.06226 q^{37} -6.00000 q^{39} +7.06226 q^{41} +8.53113 q^{43} -1.00000 q^{45} +5.06226 q^{47} +13.5311 q^{49} +4.00000 q^{51} -2.53113 q^{53} +6.53113 q^{55} +4.53113 q^{57} +9.06226 q^{59} +5.06226 q^{61} +4.53113 q^{63} -6.00000 q^{65} -5.06226 q^{67} +6.53113 q^{69} +12.5311 q^{71} -8.53113 q^{73} -1.00000 q^{75} -29.5934 q^{77} +8.53113 q^{79} +1.00000 q^{81} +8.00000 q^{83} +4.00000 q^{85} -6.53113 q^{89} +27.1868 q^{91} +1.00000 q^{93} +4.53113 q^{95} +16.1245 q^{97} -6.53113 q^{99} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - 2 q^{3} - 2 q^{5} + q^{7} + 2 q^{9} - 5 q^{11} + 12 q^{13} + 2 q^{15} - 8 q^{17} - q^{19} - q^{21} - 5 q^{23} + 2 q^{25} - 2 q^{27} - 2 q^{31} + 5 q^{33} - q^{35} + 2 q^{37} - 12 q^{39} - 2 q^{41}+ \cdots - 5 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Coefficient data

For each \(n\) we display the coefficients of the \(q\)-expansion \(a_n\), the Satake parameters \(\alpha_p\), and the Satake angles \(\theta_p = \textrm{Arg}(\alpha_p)\). You can download additional coefficients here.



Currently showing only \(a_p\); display all \(a_n\) Currently showing all \(a_n\); display only \(a_p\)
Significant digits:
\(n\) \(a_n\) \(a_n / n^{(k-1)/2}\) \( \alpha_n \) \( \theta_n \)
\(p\) \(a_p\) \(a_p / p^{(k-1)/2}\) \( \alpha_p\) \( \theta_p \)
\(2\) 0 0
\(3\) −1.00000 −0.577350
\(4\) 0 0
\(5\) −1.00000 −0.447214
\(6\) 0 0
\(7\) 4.53113 1.71261 0.856303 0.516474i \(-0.172756\pi\)
0.856303 + 0.516474i \(0.172756\pi\)
\(8\) 0 0
\(9\) 1.00000 0.333333
\(10\) 0 0
\(11\) −6.53113 −1.96921 −0.984605 0.174796i \(-0.944074\pi\)
−0.984605 + 0.174796i \(0.944074\pi\)
\(12\) 0 0
\(13\) 6.00000 1.66410 0.832050 0.554700i \(-0.187167\pi\)
0.832050 + 0.554700i \(0.187167\pi\)
\(14\) 0 0
\(15\) 1.00000 0.258199
\(16\) 0 0
\(17\) −4.00000 −0.970143 −0.485071 0.874475i \(-0.661206\pi\)
−0.485071 + 0.874475i \(0.661206\pi\)
\(18\) 0 0
\(19\) −4.53113 −1.03951 −0.519756 0.854315i \(-0.673977\pi\)
−0.519756 + 0.854315i \(0.673977\pi\)
\(20\) 0 0
\(21\) −4.53113 −0.988773
\(22\) 0 0
\(23\) −6.53113 −1.36183 −0.680917 0.732360i \(-0.738419\pi\)
−0.680917 + 0.732360i \(0.738419\pi\)
\(24\) 0 0
\(25\) 1.00000 0.200000
\(26\) 0 0
\(27\) −1.00000 −0.192450
\(28\) 0 0
\(29\) 0 0 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(30\) 0 0
\(31\) −1.00000 −0.179605
\(32\) 0 0
\(33\) 6.53113 1.13692
\(34\) 0 0
\(35\) −4.53113 −0.765901
\(36\) 0 0
\(37\) −7.06226 −1.16103 −0.580514 0.814250i \(-0.697148\pi\)
−0.580514 + 0.814250i \(0.697148\pi\)
\(38\) 0 0
\(39\) −6.00000 −0.960769
\(40\) 0 0
\(41\) 7.06226 1.10294 0.551470 0.834195i \(-0.314067\pi\)
0.551470 + 0.834195i \(0.314067\pi\)
\(42\) 0 0
\(43\) 8.53113 1.30098 0.650492 0.759513i \(-0.274563\pi\)
0.650492 + 0.759513i \(0.274563\pi\)
\(44\) 0 0
\(45\) −1.00000 −0.149071
\(46\) 0 0
\(47\) 5.06226 0.738406 0.369203 0.929349i \(-0.379631\pi\)
0.369203 + 0.929349i \(0.379631\pi\)
\(48\) 0 0
\(49\) 13.5311 1.93302
\(50\) 0 0
\(51\) 4.00000 0.560112
\(52\) 0 0
\(53\) −2.53113 −0.347677 −0.173839 0.984774i \(-0.555617\pi\)
−0.173839 + 0.984774i \(0.555617\pi\)
\(54\) 0 0
\(55\) 6.53113 0.880657
\(56\) 0 0
\(57\) 4.53113 0.600163
\(58\) 0 0
\(59\) 9.06226 1.17981 0.589903 0.807474i \(-0.299166\pi\)
0.589903 + 0.807474i \(0.299166\pi\)
\(60\) 0 0
\(61\) 5.06226 0.648156 0.324078 0.946030i \(-0.394946\pi\)
0.324078 + 0.946030i \(0.394946\pi\)
\(62\) 0 0
\(63\) 4.53113 0.570869
\(64\) 0 0
\(65\) −6.00000 −0.744208
\(66\) 0 0
\(67\) −5.06226 −0.618453 −0.309227 0.950988i \(-0.600070\pi\)
−0.309227 + 0.950988i \(0.600070\pi\)
\(68\) 0 0
\(69\) 6.53113 0.786256
\(70\) 0 0
\(71\) 12.5311 1.48717 0.743586 0.668641i \(-0.233124\pi\)
0.743586 + 0.668641i \(0.233124\pi\)
\(72\) 0 0
\(73\) −8.53113 −0.998493 −0.499247 0.866460i \(-0.666390\pi\)
−0.499247 + 0.866460i \(0.666390\pi\)
\(74\) 0 0
\(75\) −1.00000 −0.115470
\(76\) 0 0
\(77\) −29.5934 −3.37248
\(78\) 0 0
\(79\) 8.53113 0.959827 0.479913 0.877316i \(-0.340668\pi\)
0.479913 + 0.877316i \(0.340668\pi\)
\(80\) 0 0
\(81\) 1.00000 0.111111
\(82\) 0 0
\(83\) 8.00000 0.878114 0.439057 0.898459i \(-0.355313\pi\)
0.439057 + 0.898459i \(0.355313\pi\)
\(84\) 0 0
\(85\) 4.00000 0.433861
\(86\) 0 0
\(87\) 0 0
\(88\) 0 0
\(89\) −6.53113 −0.692298 −0.346149 0.938180i \(-0.612511\pi\)
−0.346149 + 0.938180i \(0.612511\pi\)
\(90\) 0 0
\(91\) 27.1868 2.84995
\(92\) 0 0
\(93\) 1.00000 0.103695
\(94\) 0 0
\(95\) 4.53113 0.464884
\(96\) 0 0
\(97\) 16.1245 1.63720 0.818598 0.574367i \(-0.194752\pi\)
0.818598 + 0.574367i \(0.194752\pi\)
\(98\) 0 0
\(99\) −6.53113 −0.656403
Currently showing only \(a_p\); display all \(a_n\) Currently showing all \(a_n\); display only \(a_p\)

Twists

       By twisting character
Char Parity Ord Type Twist Min Dim
1.1 even 1 trivial 7440.2.a.bd.1.2 2
4.3 odd 2 930.2.a.q.1.1 2
12.11 even 2 2790.2.a.bf.1.1 2
20.3 even 4 4650.2.d.bg.3349.2 4
20.7 even 4 4650.2.d.bg.3349.3 4
20.19 odd 2 4650.2.a.bz.1.2 2
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
930.2.a.q.1.1 2 4.3 odd 2
2790.2.a.bf.1.1 2 12.11 even 2
4650.2.a.bz.1.2 2 20.19 odd 2
4650.2.d.bg.3349.2 4 20.3 even 4
4650.2.d.bg.3349.3 4 20.7 even 4
7440.2.a.bd.1.2 2 1.1 even 1 trivial