Properties

Label 7872.2.a.cj.1.3
Level $7872$
Weight $2$
Character 7872.1
Self dual yes
Analytic conductor $62.858$
Analytic rank $0$
Dimension $4$
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] = [7872,2,Mod(1,7872)] 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("7872.1"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(7872, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 7872 = 2^{6} \cdot 3 \cdot 41 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 7872.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [4,0,4,0,4,0,6,0,4,0,3,0,2] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(13)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(62.8582364712\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: 4.4.15188.1
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} - x^{3} - 7x^{2} + x + 2 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 3936)
Fricke sign: \(-1\)
Sato-Tate group: $\mathrm{SU}(2)$

Embedding invariants

Embedding label 1.3
Root \(0.599159\) of defining polynomial
Character \(\chi\) \(=\) 7872.1

$q$-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)
 
\(f(q)\) \(=\) \(q+1.00000 q^{3} +1.25066 q^{5} +4.98951 q^{7} +1.00000 q^{9} +0.651498 q^{11} -2.98951 q^{13} +1.25066 q^{15} -0.150184 q^{17} +4.18783 q^{19} +4.98951 q^{21} -6.72836 q^{23} -3.43586 q^{25} +1.00000 q^{27} +5.88904 q^{29} -8.31703 q^{31} +0.651498 q^{33} +6.24017 q^{35} +9.27518 q^{37} -2.98951 q^{39} -1.00000 q^{41} -8.57818 q^{43} +1.25066 q^{45} +5.08735 q^{47} +17.8952 q^{49} -0.150184 q^{51} +6.54053 q^{53} +0.814801 q^{55} +4.18783 q^{57} +2.69700 q^{59} +4.44269 q^{61} +4.98951 q^{63} -3.73885 q^{65} -2.39664 q^{67} -6.72836 q^{69} +14.7660 q^{71} +9.11871 q^{73} -3.43586 q^{75} +3.25066 q^{77} +9.17734 q^{79} +1.00000 q^{81} +12.8246 q^{83} -0.187828 q^{85} +5.88904 q^{87} -5.39927 q^{89} -14.9162 q^{91} -8.31703 q^{93} +5.23754 q^{95} -13.4698 q^{97} +0.651498 q^{99} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 4 q^{3} + 4 q^{5} + 6 q^{7} + 4 q^{9} + 3 q^{11} + 2 q^{13} + 4 q^{15} - 3 q^{17} + 6 q^{21} + 4 q^{27} + 13 q^{29} + 9 q^{31} + 3 q^{33} + 10 q^{35} + 7 q^{37} + 2 q^{39} - 4 q^{41} - 5 q^{43} + 4 q^{45}+ \cdots + 3 q^{99}+O(q^{100}) \) 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
\(5\) 1.25066 0.559311 0.279655 0.960100i \(-0.409780\pi\)
0.279655 + 0.960100i \(0.409780\pi\)
\(6\) 0 0
\(7\) 4.98951 1.88586 0.942929 0.332994i \(-0.108059\pi\)
0.942929 + 0.332994i \(0.108059\pi\)
\(8\) 0 0
\(9\) 1.00000 0.333333
\(10\) 0 0
\(11\) 0.651498 0.196434 0.0982171 0.995165i \(-0.468686\pi\)
0.0982171 + 0.995165i \(0.468686\pi\)
\(12\) 0 0
\(13\) −2.98951 −0.829141 −0.414570 0.910017i \(-0.636068\pi\)
−0.414570 + 0.910017i \(0.636068\pi\)
\(14\) 0 0
\(15\) 1.25066 0.322918
\(16\) 0 0
\(17\) −0.150184 −0.0364249 −0.0182124 0.999834i \(-0.505798\pi\)
−0.0182124 + 0.999834i \(0.505798\pi\)
\(18\) 0 0
\(19\) 4.18783 0.960754 0.480377 0.877062i \(-0.340500\pi\)
0.480377 + 0.877062i \(0.340500\pi\)
\(20\) 0 0
\(21\) 4.98951 1.08880
\(22\) 0 0
\(23\) −6.72836 −1.40296 −0.701480 0.712689i \(-0.747477\pi\)
−0.701480 + 0.712689i \(0.747477\pi\)
\(24\) 0 0
\(25\) −3.43586 −0.687171
\(26\) 0 0
\(27\) 1.00000 0.192450
\(28\) 0 0
\(29\) 5.88904 1.09357 0.546783 0.837274i \(-0.315852\pi\)
0.546783 + 0.837274i \(0.315852\pi\)
\(30\) 0 0
\(31\) −8.31703 −1.49378 −0.746892 0.664946i \(-0.768455\pi\)
−0.746892 + 0.664946i \(0.768455\pi\)
\(32\) 0 0
\(33\) 0.651498 0.113411
\(34\) 0 0
\(35\) 6.24017 1.05478
\(36\) 0 0
\(37\) 9.27518 1.52483 0.762415 0.647088i \(-0.224013\pi\)
0.762415 + 0.647088i \(0.224013\pi\)
\(38\) 0 0
\(39\) −2.98951 −0.478705
\(40\) 0 0
\(41\) −1.00000 −0.156174
\(42\) 0 0
\(43\) −8.57818 −1.30816 −0.654080 0.756425i \(-0.726944\pi\)
−0.654080 + 0.756425i \(0.726944\pi\)
\(44\) 0 0
\(45\) 1.25066 0.186437
\(46\) 0 0
\(47\) 5.08735 0.742067 0.371033 0.928619i \(-0.379004\pi\)
0.371033 + 0.928619i \(0.379004\pi\)
\(48\) 0 0
\(49\) 17.8952 2.55646
\(50\) 0 0
\(51\) −0.150184 −0.0210299
\(52\) 0 0
\(53\) 6.54053 0.898412 0.449206 0.893428i \(-0.351707\pi\)
0.449206 + 0.893428i \(0.351707\pi\)
\(54\) 0 0
\(55\) 0.814801 0.109868
\(56\) 0 0
\(57\) 4.18783 0.554691
\(58\) 0 0
\(59\) 2.69700 0.351120 0.175560 0.984469i \(-0.443826\pi\)
0.175560 + 0.984469i \(0.443826\pi\)
\(60\) 0 0
\(61\) 4.44269 0.568828 0.284414 0.958702i \(-0.408201\pi\)
0.284414 + 0.958702i \(0.408201\pi\)
\(62\) 0 0
\(63\) 4.98951 0.628619
\(64\) 0 0
\(65\) −3.73885 −0.463748
\(66\) 0 0
\(67\) −2.39664 −0.292796 −0.146398 0.989226i \(-0.546768\pi\)
−0.146398 + 0.989226i \(0.546768\pi\)
\(68\) 0 0
\(69\) −6.72836 −0.810000
\(70\) 0 0
\(71\) 14.7660 1.75240 0.876201 0.481945i \(-0.160070\pi\)
0.876201 + 0.481945i \(0.160070\pi\)
\(72\) 0 0
\(73\) 9.11871 1.06726 0.533632 0.845717i \(-0.320827\pi\)
0.533632 + 0.845717i \(0.320827\pi\)
\(74\) 0 0
\(75\) −3.43586 −0.396739
\(76\) 0 0
\(77\) 3.25066 0.370447
\(78\) 0 0
\(79\) 9.17734 1.03253 0.516266 0.856429i \(-0.327322\pi\)
0.516266 + 0.856429i \(0.327322\pi\)
\(80\) 0 0
\(81\) 1.00000 0.111111
\(82\) 0 0
\(83\) 12.8246 1.40769 0.703843 0.710355i \(-0.251466\pi\)
0.703843 + 0.710355i \(0.251466\pi\)
\(84\) 0 0
\(85\) −0.187828 −0.0203728
\(86\) 0 0
\(87\) 5.88904 0.631371
\(88\) 0 0
\(89\) −5.39927 −0.572321 −0.286161 0.958182i \(-0.592379\pi\)
−0.286161 + 0.958182i \(0.592379\pi\)
\(90\) 0 0
\(91\) −14.9162 −1.56364
\(92\) 0 0
\(93\) −8.31703 −0.862436
\(94\) 0 0
\(95\) 5.23754 0.537360
\(96\) 0 0
\(97\) −13.4698 −1.36766 −0.683828 0.729643i \(-0.739686\pi\)
−0.683828 + 0.729643i \(0.739686\pi\)
\(98\) 0 0
\(99\) 0.651498 0.0654780
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 7872.2.a.cj.1.3 4
4.3 odd 2 7872.2.a.cf.1.3 4
8.3 odd 2 3936.2.a.m.1.2 yes 4
8.5 even 2 3936.2.a.i.1.2 4
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
3936.2.a.i.1.2 4 8.5 even 2
3936.2.a.m.1.2 yes 4 8.3 odd 2
7872.2.a.cf.1.3 4 4.3 odd 2
7872.2.a.cj.1.3 4 1.1 even 1 trivial