Properties

Label 42.2.a.a.1.1
Level $42$
Weight $2$
Character 42.1
Self dual yes
Analytic conductor $0.335$
Analytic rank $0$
Dimension $1$
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] = [42,2,Mod(1,42)] 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("42.1"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(42, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 42 = 2 \cdot 3 \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 42.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(0)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(0.335371688489\)
Analytic rank: \(0\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Fricke sign: \(-1\)
Sato-Tate group: $\mathrm{SU}(2)$

Embedding invariants

Embedding label 1.1
Character \(\chi\) \(=\) 42.1

$q$-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)
 
\(f(q)\) \(=\) \(q+1.00000 q^{2} -1.00000 q^{3} +1.00000 q^{4} -2.00000 q^{5} -1.00000 q^{6} -1.00000 q^{7} +1.00000 q^{8} +1.00000 q^{9} -2.00000 q^{10} -4.00000 q^{11} -1.00000 q^{12} +6.00000 q^{13} -1.00000 q^{14} +2.00000 q^{15} +1.00000 q^{16} +2.00000 q^{17} +1.00000 q^{18} -4.00000 q^{19} -2.00000 q^{20} +1.00000 q^{21} -4.00000 q^{22} +8.00000 q^{23} -1.00000 q^{24} -1.00000 q^{25} +6.00000 q^{26} -1.00000 q^{27} -1.00000 q^{28} -2.00000 q^{29} +2.00000 q^{30} +1.00000 q^{32} +4.00000 q^{33} +2.00000 q^{34} +2.00000 q^{35} +1.00000 q^{36} -10.0000 q^{37} -4.00000 q^{38} -6.00000 q^{39} -2.00000 q^{40} -6.00000 q^{41} +1.00000 q^{42} -4.00000 q^{43} -4.00000 q^{44} -2.00000 q^{45} +8.00000 q^{46} -1.00000 q^{48} +1.00000 q^{49} -1.00000 q^{50} -2.00000 q^{51} +6.00000 q^{52} +6.00000 q^{53} -1.00000 q^{54} +8.00000 q^{55} -1.00000 q^{56} +4.00000 q^{57} -2.00000 q^{58} +4.00000 q^{59} +2.00000 q^{60} +6.00000 q^{61} -1.00000 q^{63} +1.00000 q^{64} -12.0000 q^{65} +4.00000 q^{66} +4.00000 q^{67} +2.00000 q^{68} -8.00000 q^{69} +2.00000 q^{70} +8.00000 q^{71} +1.00000 q^{72} +10.0000 q^{73} -10.0000 q^{74} +1.00000 q^{75} -4.00000 q^{76} +4.00000 q^{77} -6.00000 q^{78} -2.00000 q^{80} +1.00000 q^{81} -6.00000 q^{82} -4.00000 q^{83} +1.00000 q^{84} -4.00000 q^{85} -4.00000 q^{86} +2.00000 q^{87} -4.00000 q^{88} -6.00000 q^{89} -2.00000 q^{90} -6.00000 q^{91} +8.00000 q^{92} +8.00000 q^{95} -1.00000 q^{96} -14.0000 q^{97} +1.00000 q^{98} -4.00000 q^{99} +O(q^{100})\)

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:
\(n\) \(a_n\) \(a_n / n^{(k-1)/2}\) \( \alpha_n \) \( \theta_n \)
\(p\) \(a_p\) \(a_p / p^{(k-1)/2}\) \( \alpha_p\) \( \theta_p \)
\(2\) 1.00000 0.707107
\(3\) −1.00000 −0.577350
\(4\) 1.00000 0.500000
\(5\) −2.00000 −0.894427 −0.447214 0.894427i \(-0.647584\pi\)
−0.447214 + 0.894427i \(0.647584\pi\)
\(6\) −1.00000 −0.408248
\(7\) −1.00000 −0.377964
\(8\) 1.00000 0.353553
\(9\) 1.00000 0.333333
\(10\) −2.00000 −0.632456
\(11\) −4.00000 −1.20605 −0.603023 0.797724i \(-0.706037\pi\)
−0.603023 + 0.797724i \(0.706037\pi\)
\(12\) −1.00000 −0.288675
\(13\) 6.00000 1.66410 0.832050 0.554700i \(-0.187167\pi\)
0.832050 + 0.554700i \(0.187167\pi\)
\(14\) −1.00000 −0.267261
\(15\) 2.00000 0.516398
\(16\) 1.00000 0.250000
\(17\) 2.00000 0.485071 0.242536 0.970143i \(-0.422021\pi\)
0.242536 + 0.970143i \(0.422021\pi\)
\(18\) 1.00000 0.235702
\(19\) −4.00000 −0.917663 −0.458831 0.888523i \(-0.651732\pi\)
−0.458831 + 0.888523i \(0.651732\pi\)
\(20\) −2.00000 −0.447214
\(21\) 1.00000 0.218218
\(22\) −4.00000 −0.852803
\(23\) 8.00000 1.66812 0.834058 0.551677i \(-0.186012\pi\)
0.834058 + 0.551677i \(0.186012\pi\)
\(24\) −1.00000 −0.204124
\(25\) −1.00000 −0.200000
\(26\) 6.00000 1.17670
\(27\) −1.00000 −0.192450
\(28\) −1.00000 −0.188982
\(29\) −2.00000 −0.371391 −0.185695 0.982607i \(-0.559454\pi\)
−0.185695 + 0.982607i \(0.559454\pi\)
\(30\) 2.00000 0.365148
\(31\) 0 0 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(32\) 1.00000 0.176777
\(33\) 4.00000 0.696311
\(34\) 2.00000 0.342997
\(35\) 2.00000 0.338062
\(36\) 1.00000 0.166667
\(37\) −10.0000 −1.64399 −0.821995 0.569495i \(-0.807139\pi\)
−0.821995 + 0.569495i \(0.807139\pi\)
\(38\) −4.00000 −0.648886
\(39\) −6.00000 −0.960769
\(40\) −2.00000 −0.316228
\(41\) −6.00000 −0.937043 −0.468521 0.883452i \(-0.655213\pi\)
−0.468521 + 0.883452i \(0.655213\pi\)
\(42\) 1.00000 0.154303
\(43\) −4.00000 −0.609994 −0.304997 0.952353i \(-0.598656\pi\)
−0.304997 + 0.952353i \(0.598656\pi\)
\(44\) −4.00000 −0.603023
\(45\) −2.00000 −0.298142
\(46\) 8.00000 1.17954
\(47\) 0 0 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(48\) −1.00000 −0.144338
\(49\) 1.00000 0.142857
\(50\) −1.00000 −0.141421
\(51\) −2.00000 −0.280056
\(52\) 6.00000 0.832050
\(53\) 6.00000 0.824163 0.412082 0.911147i \(-0.364802\pi\)
0.412082 + 0.911147i \(0.364802\pi\)
\(54\) −1.00000 −0.136083
\(55\) 8.00000 1.07872
\(56\) −1.00000 −0.133631
\(57\) 4.00000 0.529813
\(58\) −2.00000 −0.262613
\(59\) 4.00000 0.520756 0.260378 0.965507i \(-0.416153\pi\)
0.260378 + 0.965507i \(0.416153\pi\)
\(60\) 2.00000 0.258199
\(61\) 6.00000 0.768221 0.384111 0.923287i \(-0.374508\pi\)
0.384111 + 0.923287i \(0.374508\pi\)
\(62\) 0 0
\(63\) −1.00000 −0.125988
\(64\) 1.00000 0.125000
\(65\) −12.0000 −1.48842
\(66\) 4.00000 0.492366
\(67\) 4.00000 0.488678 0.244339 0.969690i \(-0.421429\pi\)
0.244339 + 0.969690i \(0.421429\pi\)
\(68\) 2.00000 0.242536
\(69\) −8.00000 −0.963087
\(70\) 2.00000 0.239046
\(71\) 8.00000 0.949425 0.474713 0.880141i \(-0.342552\pi\)
0.474713 + 0.880141i \(0.342552\pi\)
\(72\) 1.00000 0.117851
\(73\) 10.0000 1.17041 0.585206 0.810885i \(-0.301014\pi\)
0.585206 + 0.810885i \(0.301014\pi\)
\(74\) −10.0000 −1.16248
\(75\) 1.00000 0.115470
\(76\) −4.00000 −0.458831
\(77\) 4.00000 0.455842
\(78\) −6.00000 −0.679366
\(79\) 0 0 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(80\) −2.00000 −0.223607
\(81\) 1.00000 0.111111
\(82\) −6.00000 −0.662589
\(83\) −4.00000 −0.439057 −0.219529 0.975606i \(-0.570452\pi\)
−0.219529 + 0.975606i \(0.570452\pi\)
\(84\) 1.00000 0.109109
\(85\) −4.00000 −0.433861
\(86\) −4.00000 −0.431331
\(87\) 2.00000 0.214423
\(88\) −4.00000 −0.426401
\(89\) −6.00000 −0.635999 −0.317999 0.948091i \(-0.603011\pi\)
−0.317999 + 0.948091i \(0.603011\pi\)
\(90\) −2.00000 −0.210819
\(91\) −6.00000 −0.628971
\(92\) 8.00000 0.834058
\(93\) 0 0
\(94\) 0 0
\(95\) 8.00000 0.820783
\(96\) −1.00000 −0.102062
\(97\) −14.0000 −1.42148 −0.710742 0.703452i \(-0.751641\pi\)
−0.710742 + 0.703452i \(0.751641\pi\)
\(98\) 1.00000 0.101015
\(99\) −4.00000 −0.402015
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 42.2.a.a.1.1 1
3.2 odd 2 126.2.a.a.1.1 1
4.3 odd 2 336.2.a.d.1.1 1
5.2 odd 4 1050.2.g.a.799.2 2
5.3 odd 4 1050.2.g.a.799.1 2
5.4 even 2 1050.2.a.i.1.1 1
7.2 even 3 294.2.e.c.67.1 2
7.3 odd 6 294.2.e.a.79.1 2
7.4 even 3 294.2.e.c.79.1 2
7.5 odd 6 294.2.e.a.67.1 2
7.6 odd 2 294.2.a.g.1.1 1
8.3 odd 2 1344.2.a.i.1.1 1
8.5 even 2 1344.2.a.q.1.1 1
9.2 odd 6 1134.2.f.j.757.1 2
9.4 even 3 1134.2.f.g.379.1 2
9.5 odd 6 1134.2.f.j.379.1 2
9.7 even 3 1134.2.f.g.757.1 2
11.10 odd 2 5082.2.a.d.1.1 1
12.11 even 2 1008.2.a.j.1.1 1
13.12 even 2 7098.2.a.f.1.1 1
15.2 even 4 3150.2.g.r.2899.1 2
15.8 even 4 3150.2.g.r.2899.2 2
15.14 odd 2 3150.2.a.bo.1.1 1
16.3 odd 4 5376.2.c.e.2689.2 2
16.5 even 4 5376.2.c.bc.2689.2 2
16.11 odd 4 5376.2.c.e.2689.1 2
16.13 even 4 5376.2.c.bc.2689.1 2
20.19 odd 2 8400.2.a.k.1.1 1
21.2 odd 6 882.2.g.h.361.1 2
21.5 even 6 882.2.g.j.361.1 2
21.11 odd 6 882.2.g.h.667.1 2
21.17 even 6 882.2.g.j.667.1 2
21.20 even 2 882.2.a.b.1.1 1
24.5 odd 2 4032.2.a.e.1.1 1
24.11 even 2 4032.2.a.m.1.1 1
28.3 even 6 2352.2.q.n.961.1 2
28.11 odd 6 2352.2.q.i.961.1 2
28.19 even 6 2352.2.q.n.1537.1 2
28.23 odd 6 2352.2.q.i.1537.1 2
28.27 even 2 2352.2.a.l.1.1 1
35.34 odd 2 7350.2.a.f.1.1 1
56.13 odd 2 9408.2.a.n.1.1 1
56.27 even 2 9408.2.a.bw.1.1 1
84.83 odd 2 7056.2.a.k.1.1 1
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
42.2.a.a.1.1 1 1.1 even 1 trivial
126.2.a.a.1.1 1 3.2 odd 2
294.2.a.g.1.1 1 7.6 odd 2
294.2.e.a.67.1 2 7.5 odd 6
294.2.e.a.79.1 2 7.3 odd 6
294.2.e.c.67.1 2 7.2 even 3
294.2.e.c.79.1 2 7.4 even 3
336.2.a.d.1.1 1 4.3 odd 2
882.2.a.b.1.1 1 21.20 even 2
882.2.g.h.361.1 2 21.2 odd 6
882.2.g.h.667.1 2 21.11 odd 6
882.2.g.j.361.1 2 21.5 even 6
882.2.g.j.667.1 2 21.17 even 6
1008.2.a.j.1.1 1 12.11 even 2
1050.2.a.i.1.1 1 5.4 even 2
1050.2.g.a.799.1 2 5.3 odd 4
1050.2.g.a.799.2 2 5.2 odd 4
1134.2.f.g.379.1 2 9.4 even 3
1134.2.f.g.757.1 2 9.7 even 3
1134.2.f.j.379.1 2 9.5 odd 6
1134.2.f.j.757.1 2 9.2 odd 6
1344.2.a.i.1.1 1 8.3 odd 2
1344.2.a.q.1.1 1 8.5 even 2
2352.2.a.l.1.1 1 28.27 even 2
2352.2.q.i.961.1 2 28.11 odd 6
2352.2.q.i.1537.1 2 28.23 odd 6
2352.2.q.n.961.1 2 28.3 even 6
2352.2.q.n.1537.1 2 28.19 even 6
3150.2.a.bo.1.1 1 15.14 odd 2
3150.2.g.r.2899.1 2 15.2 even 4
3150.2.g.r.2899.2 2 15.8 even 4
4032.2.a.e.1.1 1 24.5 odd 2
4032.2.a.m.1.1 1 24.11 even 2
5082.2.a.d.1.1 1 11.10 odd 2
5376.2.c.e.2689.1 2 16.11 odd 4
5376.2.c.e.2689.2 2 16.3 odd 4
5376.2.c.bc.2689.1 2 16.13 even 4
5376.2.c.bc.2689.2 2 16.5 even 4
7056.2.a.k.1.1 1 84.83 odd 2
7098.2.a.f.1.1 1 13.12 even 2
7350.2.a.f.1.1 1 35.34 odd 2
8400.2.a.k.1.1 1 20.19 odd 2
9408.2.a.n.1.1 1 56.13 odd 2
9408.2.a.bw.1.1 1 56.27 even 2