Properties

Label 2646.2.h.i.361.1
Level $2646$
Weight $2$
Character 2646.361
Analytic conductor $21.128$
Analytic rank $0$
Dimension $2$
Inner twists $2$

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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] = [2646,2,Mod(361,2646)] 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("2646.361"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(2646, base_ring=CyclotomicField(6)) chi = DirichletCharacter(H, H._module([2, 4])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 2646 = 2 \cdot 3^{3} \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2646.h (of order \(3\), degree \(2\), not minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,1,0,-1,0,0,0,-2,0,0,6,0,2] 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: no
Analytic conductor: \(21.1284163748\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\zeta_{6})\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 18)
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

Embedding invariants

Embedding label 361.1
Root \(0.500000 + 0.866025i\) of defining polynomial
Character \(\chi\) \(=\) 2646.361
Dual form 2646.2.h.i.667.1

$q$-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)
 
\(f(q)\) \(=\) \(q+(0.500000 - 0.866025i) q^{2} +(-0.500000 - 0.866025i) q^{4} -1.00000 q^{8} +3.00000 q^{11} +(1.00000 - 1.73205i) q^{13} +(-0.500000 + 0.866025i) q^{16} +(1.50000 - 2.59808i) q^{17} +(-0.500000 - 0.866025i) q^{19} +(1.50000 - 2.59808i) q^{22} +6.00000 q^{23} -5.00000 q^{25} +(-1.00000 - 1.73205i) q^{26} +(3.00000 + 5.19615i) q^{29} +(-2.00000 - 3.46410i) q^{31} +(0.500000 + 0.866025i) q^{32} +(-1.50000 - 2.59808i) q^{34} +(2.00000 + 3.46410i) q^{37} -1.00000 q^{38} +(-4.50000 + 7.79423i) q^{41} +(0.500000 + 0.866025i) q^{43} +(-1.50000 - 2.59808i) q^{44} +(3.00000 - 5.19615i) q^{46} +(3.00000 - 5.19615i) q^{47} +(-2.50000 + 4.33013i) q^{50} -2.00000 q^{52} +(6.00000 - 10.3923i) q^{53} +6.00000 q^{58} +(-1.50000 - 2.59808i) q^{59} +(4.00000 - 6.92820i) q^{61} -4.00000 q^{62} +1.00000 q^{64} +(-2.50000 - 4.33013i) q^{67} -3.00000 q^{68} +12.0000 q^{71} +(5.50000 - 9.52628i) q^{73} +4.00000 q^{74} +(-0.500000 + 0.866025i) q^{76} +(2.00000 - 3.46410i) q^{79} +(4.50000 + 7.79423i) q^{82} +(-6.00000 - 10.3923i) q^{83} +1.00000 q^{86} -3.00000 q^{88} +(-3.00000 - 5.19615i) q^{89} +(-3.00000 - 5.19615i) q^{92} +(-3.00000 - 5.19615i) q^{94} +(2.50000 + 4.33013i) q^{97} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + q^{2} - q^{4} - 2 q^{8} + 6 q^{11} + 2 q^{13} - q^{16} + 3 q^{17} - q^{19} + 3 q^{22} + 12 q^{23} - 10 q^{25} - 2 q^{26} + 6 q^{29} - 4 q^{31} + q^{32} - 3 q^{34} + 4 q^{37} - 2 q^{38} - 9 q^{41}+ \cdots + 5 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2646\mathbb{Z}\right)^\times\).

\(n\) \(785\) \(1081\)
\(\chi(n)\) \(e\left(\frac{1}{3}\right)\) \(e\left(\frac{2}{3}\right)\)

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:
\(n\) \(a_n\) \(a_n / n^{(k-1)/2}\) \( \alpha_n \) \( \theta_n \)
\(p\) \(a_p\) \(a_p / p^{(k-1)/2}\) \( \alpha_p\) \( \theta_p \)
\(2\) 0.500000 0.866025i 0.353553 0.612372i
\(3\) 0 0
\(4\) −0.500000 0.866025i −0.250000 0.433013i
\(5\) 0 0 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(6\) 0 0
\(7\) 0 0
\(8\) −1.00000 −0.353553
\(9\) 0 0
\(10\) 0 0
\(11\) 3.00000 0.904534 0.452267 0.891883i \(-0.350615\pi\)
0.452267 + 0.891883i \(0.350615\pi\)
\(12\) 0 0
\(13\) 1.00000 1.73205i 0.277350 0.480384i −0.693375 0.720577i \(-0.743877\pi\)
0.970725 + 0.240192i \(0.0772105\pi\)
\(14\) 0 0
\(15\) 0 0
\(16\) −0.500000 + 0.866025i −0.125000 + 0.216506i
\(17\) 1.50000 2.59808i 0.363803 0.630126i −0.624780 0.780801i \(-0.714811\pi\)
0.988583 + 0.150675i \(0.0481447\pi\)
\(18\) 0 0
\(19\) −0.500000 0.866025i −0.114708 0.198680i 0.802955 0.596040i \(-0.203260\pi\)
−0.917663 + 0.397360i \(0.869927\pi\)
\(20\) 0 0
\(21\) 0 0
\(22\) 1.50000 2.59808i 0.319801 0.553912i
\(23\) 6.00000 1.25109 0.625543 0.780189i \(-0.284877\pi\)
0.625543 + 0.780189i \(0.284877\pi\)
\(24\) 0 0
\(25\) −5.00000 −1.00000
\(26\) −1.00000 1.73205i −0.196116 0.339683i
\(27\) 0 0
\(28\) 0 0
\(29\) 3.00000 + 5.19615i 0.557086 + 0.964901i 0.997738 + 0.0672232i \(0.0214140\pi\)
−0.440652 + 0.897678i \(0.645253\pi\)
\(30\) 0 0
\(31\) −2.00000 3.46410i −0.359211 0.622171i 0.628619 0.777714i \(-0.283621\pi\)
−0.987829 + 0.155543i \(0.950287\pi\)
\(32\) 0.500000 + 0.866025i 0.0883883 + 0.153093i
\(33\) 0 0
\(34\) −1.50000 2.59808i −0.257248 0.445566i
\(35\) 0 0
\(36\) 0 0
\(37\) 2.00000 + 3.46410i 0.328798 + 0.569495i 0.982274 0.187453i \(-0.0600231\pi\)
−0.653476 + 0.756948i \(0.726690\pi\)
\(38\) −1.00000 −0.162221
\(39\) 0 0
\(40\) 0 0
\(41\) −4.50000 + 7.79423i −0.702782 + 1.21725i 0.264704 + 0.964330i \(0.414726\pi\)
−0.967486 + 0.252924i \(0.918608\pi\)
\(42\) 0 0
\(43\) 0.500000 + 0.866025i 0.0762493 + 0.132068i 0.901629 0.432511i \(-0.142372\pi\)
−0.825380 + 0.564578i \(0.809039\pi\)
\(44\) −1.50000 2.59808i −0.226134 0.391675i
\(45\) 0 0
\(46\) 3.00000 5.19615i 0.442326 0.766131i
\(47\) 3.00000 5.19615i 0.437595 0.757937i −0.559908 0.828554i \(-0.689164\pi\)
0.997503 + 0.0706177i \(0.0224970\pi\)
\(48\) 0 0
\(49\) 0 0
\(50\) −2.50000 + 4.33013i −0.353553 + 0.612372i
\(51\) 0 0
\(52\) −2.00000 −0.277350
\(53\) 6.00000 10.3923i 0.824163 1.42749i −0.0783936 0.996922i \(-0.524979\pi\)
0.902557 0.430570i \(-0.141688\pi\)
\(54\) 0 0
\(55\) 0 0
\(56\) 0 0
\(57\) 0 0
\(58\) 6.00000 0.787839
\(59\) −1.50000 2.59808i −0.195283 0.338241i 0.751710 0.659494i \(-0.229229\pi\)
−0.946993 + 0.321253i \(0.895896\pi\)
\(60\) 0 0
\(61\) 4.00000 6.92820i 0.512148 0.887066i −0.487753 0.872982i \(-0.662183\pi\)
0.999901 0.0140840i \(-0.00448323\pi\)
\(62\) −4.00000 −0.508001
\(63\) 0 0
\(64\) 1.00000 0.125000
\(65\) 0 0
\(66\) 0 0
\(67\) −2.50000 4.33013i −0.305424 0.529009i 0.671932 0.740613i \(-0.265465\pi\)
−0.977356 + 0.211604i \(0.932131\pi\)
\(68\) −3.00000 −0.363803
\(69\) 0 0
\(70\) 0 0
\(71\) 12.0000 1.42414 0.712069 0.702109i \(-0.247758\pi\)
0.712069 + 0.702109i \(0.247758\pi\)
\(72\) 0 0
\(73\) 5.50000 9.52628i 0.643726 1.11497i −0.340868 0.940111i \(-0.610721\pi\)
0.984594 0.174855i \(-0.0559458\pi\)
\(74\) 4.00000 0.464991
\(75\) 0 0
\(76\) −0.500000 + 0.866025i −0.0573539 + 0.0993399i
\(77\) 0 0
\(78\) 0 0
\(79\) 2.00000 3.46410i 0.225018 0.389742i −0.731307 0.682048i \(-0.761089\pi\)
0.956325 + 0.292306i \(0.0944227\pi\)
\(80\) 0 0
\(81\) 0 0
\(82\) 4.50000 + 7.79423i 0.496942 + 0.860729i
\(83\) −6.00000 10.3923i −0.658586 1.14070i −0.980982 0.194099i \(-0.937822\pi\)
0.322396 0.946605i \(-0.395512\pi\)
\(84\) 0 0
\(85\) 0 0
\(86\) 1.00000 0.107833
\(87\) 0 0
\(88\) −3.00000 −0.319801
\(89\) −3.00000 5.19615i −0.317999 0.550791i 0.662071 0.749441i \(-0.269678\pi\)
−0.980071 + 0.198650i \(0.936344\pi\)
\(90\) 0 0
\(91\) 0 0
\(92\) −3.00000 5.19615i −0.312772 0.541736i
\(93\) 0 0
\(94\) −3.00000 5.19615i −0.309426 0.535942i
\(95\) 0 0
\(96\) 0 0
\(97\) 2.50000 + 4.33013i 0.253837 + 0.439658i 0.964579 0.263795i \(-0.0849741\pi\)
−0.710742 + 0.703452i \(0.751641\pi\)
\(98\) 0 0
\(99\) 0 0
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 2646.2.h.i.361.1 2
3.2 odd 2 882.2.h.b.67.1 2
7.2 even 3 2646.2.e.c.1549.1 2
7.3 odd 6 54.2.c.a.37.1 2
7.4 even 3 2646.2.f.g.1765.1 2
7.5 odd 6 2646.2.e.b.1549.1 2
7.6 odd 2 2646.2.h.h.361.1 2
9.2 odd 6 882.2.e.g.655.1 2
9.7 even 3 2646.2.e.c.2125.1 2
21.2 odd 6 882.2.e.g.373.1 2
21.5 even 6 882.2.e.i.373.1 2
21.11 odd 6 882.2.f.d.589.1 2
21.17 even 6 18.2.c.a.13.1 yes 2
21.20 even 2 882.2.h.c.67.1 2
28.3 even 6 432.2.i.b.145.1 2
35.3 even 12 1350.2.j.a.199.2 4
35.17 even 12 1350.2.j.a.199.1 4
35.24 odd 6 1350.2.e.c.901.1 2
56.3 even 6 1728.2.i.f.577.1 2
56.45 odd 6 1728.2.i.e.577.1 2
63.2 odd 6 882.2.h.b.79.1 2
63.4 even 3 7938.2.a.i.1.1 1
63.11 odd 6 882.2.f.d.295.1 2
63.16 even 3 inner 2646.2.h.i.667.1 2
63.20 even 6 882.2.e.i.655.1 2
63.25 even 3 2646.2.f.g.883.1 2
63.31 odd 6 162.2.a.b.1.1 1
63.32 odd 6 7938.2.a.x.1.1 1
63.34 odd 6 2646.2.e.b.2125.1 2
63.38 even 6 18.2.c.a.7.1 2
63.47 even 6 882.2.h.c.79.1 2
63.52 odd 6 54.2.c.a.19.1 2
63.59 even 6 162.2.a.c.1.1 1
63.61 odd 6 2646.2.h.h.667.1 2
84.59 odd 6 144.2.i.c.49.1 2
105.17 odd 12 450.2.j.e.49.2 4
105.38 odd 12 450.2.j.e.49.1 4
105.59 even 6 450.2.e.i.301.1 2
168.59 odd 6 576.2.i.a.193.1 2
168.101 even 6 576.2.i.g.193.1 2
252.31 even 6 1296.2.a.f.1.1 1
252.59 odd 6 1296.2.a.g.1.1 1
252.115 even 6 432.2.i.b.289.1 2
252.227 odd 6 144.2.i.c.97.1 2
315.38 odd 12 450.2.j.e.349.2 4
315.52 even 12 1350.2.j.a.1099.2 4
315.59 even 6 4050.2.a.c.1.1 1
315.94 odd 6 4050.2.a.v.1.1 1
315.122 odd 12 4050.2.c.c.649.2 2
315.157 even 12 4050.2.c.r.649.1 2
315.164 even 6 450.2.e.i.151.1 2
315.178 even 12 1350.2.j.a.1099.1 4
315.227 odd 12 450.2.j.e.349.1 4
315.248 odd 12 4050.2.c.c.649.1 2
315.283 even 12 4050.2.c.r.649.2 2
315.304 odd 6 1350.2.e.c.451.1 2
504.59 odd 6 5184.2.a.o.1.1 1
504.101 even 6 576.2.i.g.385.1 2
504.115 even 6 1728.2.i.f.1153.1 2
504.157 odd 6 5184.2.a.q.1.1 1
504.227 odd 6 576.2.i.a.385.1 2
504.283 even 6 5184.2.a.p.1.1 1
504.437 even 6 5184.2.a.r.1.1 1
504.493 odd 6 1728.2.i.e.1153.1 2
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
18.2.c.a.7.1 2 63.38 even 6
18.2.c.a.13.1 yes 2 21.17 even 6
54.2.c.a.19.1 2 63.52 odd 6
54.2.c.a.37.1 2 7.3 odd 6
144.2.i.c.49.1 2 84.59 odd 6
144.2.i.c.97.1 2 252.227 odd 6
162.2.a.b.1.1 1 63.31 odd 6
162.2.a.c.1.1 1 63.59 even 6
432.2.i.b.145.1 2 28.3 even 6
432.2.i.b.289.1 2 252.115 even 6
450.2.e.i.151.1 2 315.164 even 6
450.2.e.i.301.1 2 105.59 even 6
450.2.j.e.49.1 4 105.38 odd 12
450.2.j.e.49.2 4 105.17 odd 12
450.2.j.e.349.1 4 315.227 odd 12
450.2.j.e.349.2 4 315.38 odd 12
576.2.i.a.193.1 2 168.59 odd 6
576.2.i.a.385.1 2 504.227 odd 6
576.2.i.g.193.1 2 168.101 even 6
576.2.i.g.385.1 2 504.101 even 6
882.2.e.g.373.1 2 21.2 odd 6
882.2.e.g.655.1 2 9.2 odd 6
882.2.e.i.373.1 2 21.5 even 6
882.2.e.i.655.1 2 63.20 even 6
882.2.f.d.295.1 2 63.11 odd 6
882.2.f.d.589.1 2 21.11 odd 6
882.2.h.b.67.1 2 3.2 odd 2
882.2.h.b.79.1 2 63.2 odd 6
882.2.h.c.67.1 2 21.20 even 2
882.2.h.c.79.1 2 63.47 even 6
1296.2.a.f.1.1 1 252.31 even 6
1296.2.a.g.1.1 1 252.59 odd 6
1350.2.e.c.451.1 2 315.304 odd 6
1350.2.e.c.901.1 2 35.24 odd 6
1350.2.j.a.199.1 4 35.17 even 12
1350.2.j.a.199.2 4 35.3 even 12
1350.2.j.a.1099.1 4 315.178 even 12
1350.2.j.a.1099.2 4 315.52 even 12
1728.2.i.e.577.1 2 56.45 odd 6
1728.2.i.e.1153.1 2 504.493 odd 6
1728.2.i.f.577.1 2 56.3 even 6
1728.2.i.f.1153.1 2 504.115 even 6
2646.2.e.b.1549.1 2 7.5 odd 6
2646.2.e.b.2125.1 2 63.34 odd 6
2646.2.e.c.1549.1 2 7.2 even 3
2646.2.e.c.2125.1 2 9.7 even 3
2646.2.f.g.883.1 2 63.25 even 3
2646.2.f.g.1765.1 2 7.4 even 3
2646.2.h.h.361.1 2 7.6 odd 2
2646.2.h.h.667.1 2 63.61 odd 6
2646.2.h.i.361.1 2 1.1 even 1 trivial
2646.2.h.i.667.1 2 63.16 even 3 inner
4050.2.a.c.1.1 1 315.59 even 6
4050.2.a.v.1.1 1 315.94 odd 6
4050.2.c.c.649.1 2 315.248 odd 12
4050.2.c.c.649.2 2 315.122 odd 12
4050.2.c.r.649.1 2 315.157 even 12
4050.2.c.r.649.2 2 315.283 even 12
5184.2.a.o.1.1 1 504.59 odd 6
5184.2.a.p.1.1 1 504.283 even 6
5184.2.a.q.1.1 1 504.157 odd 6
5184.2.a.r.1.1 1 504.437 even 6
7938.2.a.i.1.1 1 63.4 even 3
7938.2.a.x.1.1 1 63.32 odd 6