Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [342,2,Mod(55,342)] 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("342.55"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(342, base_ring=CyclotomicField(18)) chi = DirichletCharacter(H, H._module([0, 10])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 342 = 2 \cdot 3^{2} \cdot 19 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 342.u (of order \(9\), degree \(6\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [6,0,0,0,-9,0,3,-3] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(8)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(2.73088374913\)
Analytic rank: \(0\)
Dimension: \(6\)
Coefficient field: \(\Q(\zeta_{18})\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{6} - x^{3} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 114)
Sato-Tate group: $\mathrm{SU}(2)[C_{9}]$

Embedding invariants

Embedding label 289.1
Root \(0.939693 + 0.342020i\) of defining polynomial
Character \(\chi\) \(=\) 342.289
Dual form 342.2.u.a.271.1

$q$-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)
 
\(f(q)\) \(=\) \(q+(-0.939693 - 0.342020i) q^{2} +(0.766044 + 0.642788i) q^{4} +(-0.907604 + 0.761570i) q^{5} +(-0.266044 + 0.460802i) q^{7} +(-0.500000 - 0.866025i) q^{8} +(1.11334 - 0.405223i) q^{10} +(0.939693 + 1.62760i) q^{11} +(-0.673648 + 3.82045i) q^{13} +(0.407604 - 0.342020i) q^{14} +(0.173648 + 0.984808i) q^{16} +(1.09240 + 0.397600i) q^{17} +(-3.93969 + 1.86516i) q^{19} -1.18479 q^{20} +(-0.326352 - 1.85083i) q^{22} +(5.13429 + 4.30818i) q^{23} +(-0.624485 + 3.54163i) q^{25} +(1.93969 - 3.35965i) q^{26} +(-0.500000 + 0.181985i) q^{28} +(-3.77972 + 1.37570i) q^{29} +(0.979055 - 1.69577i) q^{31} +(0.173648 - 0.984808i) q^{32} +(-0.890530 - 0.747243i) q^{34} +(-0.109470 - 0.620838i) q^{35} +6.88713 q^{37} +(4.34002 - 0.405223i) q^{38} +(1.11334 + 0.405223i) q^{40} +(1.56031 + 8.84894i) q^{41} +(1.85844 - 1.55942i) q^{43} +(-0.326352 + 1.85083i) q^{44} +(-3.35117 - 5.80439i) q^{46} +(1.91875 - 0.698367i) q^{47} +(3.35844 + 5.81699i) q^{49} +(1.79813 - 3.11446i) q^{50} +(-2.97178 + 2.49362i) q^{52} +(-9.93629 - 8.33754i) q^{53} +(-2.09240 - 0.761570i) q^{55} +0.532089 q^{56} +4.02229 q^{58} +(-2.51842 - 0.916629i) q^{59} +(-8.69253 - 7.29390i) q^{61} +(-1.50000 + 1.25865i) q^{62} +(-0.500000 + 0.866025i) q^{64} +(-2.29813 - 3.98048i) q^{65} +(10.4966 - 3.82045i) q^{67} +(0.581252 + 1.00676i) q^{68} +(-0.109470 + 0.620838i) q^{70} +(-4.65136 + 3.90295i) q^{71} +(-0.0569038 - 0.322718i) q^{73} +(-6.47178 - 2.35554i) q^{74} +(-4.21688 - 1.10359i) q^{76} -1.00000 q^{77} +(-2.80154 - 15.8883i) q^{79} +(-0.907604 - 0.761570i) q^{80} +(1.56031 - 8.84894i) q^{82} +(5.78699 - 10.0234i) q^{83} +(-1.29426 + 0.471073i) q^{85} +(-2.27972 + 0.829748i) q^{86} +(0.939693 - 1.62760i) q^{88} +(0.618089 - 3.50535i) q^{89} +(-1.58125 - 1.32683i) q^{91} +(1.16385 + 6.60051i) q^{92} -2.04189 q^{94} +(2.15523 - 4.69318i) q^{95} +(-5.52481 - 2.01087i) q^{97} +(-1.16637 - 6.61484i) q^{98} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 6 q - 9 q^{5} + 3 q^{7} - 3 q^{8} - 3 q^{13} + 6 q^{14} + 3 q^{17} - 18 q^{19} - 3 q^{22} + 21 q^{23} + 9 q^{25} + 6 q^{26} - 3 q^{28} + 3 q^{29} + 9 q^{31} + 12 q^{34} - 18 q^{35} - 18 q^{37} + 6 q^{38}+ \cdots + 12 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/342\mathbb{Z}\right)^\times\).

\(n\) \(191\) \(325\)
\(\chi(n)\) \(1\) \(e\left(\frac{1}{9}\right)\)

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:
\(n\) \(a_n\) \(a_n / n^{(k-1)/2}\) \( \alpha_n \) \( \theta_n \)
\(p\) \(a_p\) \(a_p / p^{(k-1)/2}\) \( \alpha_p\) \( \theta_p \)
\(2\) −0.939693 − 0.342020i −0.664463 − 0.241845i
\(3\) 0 0
\(4\) 0.766044 + 0.642788i 0.383022 + 0.321394i
\(5\) −0.907604 + 0.761570i −0.405893 + 0.340584i −0.822766 − 0.568380i \(-0.807570\pi\)
0.416873 + 0.908965i \(0.363126\pi\)
\(6\) 0 0
\(7\) −0.266044 + 0.460802i −0.100555 + 0.174167i −0.911914 − 0.410382i \(-0.865395\pi\)
0.811358 + 0.584549i \(0.198729\pi\)
\(8\) −0.500000 − 0.866025i −0.176777 − 0.306186i
\(9\) 0 0
\(10\) 1.11334 − 0.405223i 0.352069 − 0.128143i
\(11\) 0.939693 + 1.62760i 0.283328 + 0.490738i 0.972202 − 0.234142i \(-0.0752282\pi\)
−0.688874 + 0.724881i \(0.741895\pi\)
\(12\) 0 0
\(13\) −0.673648 + 3.82045i −0.186836 + 1.05960i 0.736737 + 0.676180i \(0.236366\pi\)
−0.923573 + 0.383422i \(0.874745\pi\)
\(14\) 0.407604 − 0.342020i 0.108937 − 0.0914087i
\(15\) 0 0
\(16\) 0.173648 + 0.984808i 0.0434120 + 0.246202i
\(17\) 1.09240 + 0.397600i 0.264945 + 0.0964321i 0.471077 − 0.882092i \(-0.343865\pi\)
−0.206132 + 0.978524i \(0.566088\pi\)
\(18\) 0 0
\(19\) −3.93969 + 1.86516i −0.903827 + 0.427897i
\(20\) −1.18479 −0.264928
\(21\) 0 0
\(22\) −0.326352 − 1.85083i −0.0695784 − 0.394599i
\(23\) 5.13429 + 4.30818i 1.07057 + 0.898317i 0.995104 − 0.0988312i \(-0.0315104\pi\)
0.0754683 + 0.997148i \(0.475955\pi\)
\(24\) 0 0
\(25\) −0.624485 + 3.54163i −0.124897 + 0.708326i
\(26\) 1.93969 − 3.35965i 0.380405 − 0.658881i
\(27\) 0 0
\(28\) −0.500000 + 0.181985i −0.0944911 + 0.0343920i
\(29\) −3.77972 + 1.37570i −0.701875 + 0.255462i −0.668211 − 0.743971i \(-0.732940\pi\)
−0.0336640 + 0.999433i \(0.510718\pi\)
\(30\) 0 0
\(31\) 0.979055 − 1.69577i 0.175844 − 0.304570i −0.764609 − 0.644494i \(-0.777068\pi\)
0.940453 + 0.339924i \(0.110401\pi\)
\(32\) 0.173648 − 0.984808i 0.0306970 − 0.174091i
\(33\) 0 0
\(34\) −0.890530 − 0.747243i −0.152725 − 0.128151i
\(35\) −0.109470 − 0.620838i −0.0185039 − 0.104941i
\(36\) 0 0
\(37\) 6.88713 1.13224 0.566118 − 0.824324i \(-0.308445\pi\)
0.566118 + 0.824324i \(0.308445\pi\)
\(38\) 4.34002 − 0.405223i 0.704045 − 0.0657358i
\(39\) 0 0
\(40\) 1.11334 + 0.405223i 0.176035 + 0.0640714i
\(41\) 1.56031 + 8.84894i 0.243679 + 1.38197i 0.823540 + 0.567258i \(0.191996\pi\)
−0.579861 + 0.814715i \(0.696893\pi\)
\(42\) 0 0
\(43\) 1.85844 − 1.55942i 0.283410 − 0.237809i −0.489989 − 0.871728i \(-0.662999\pi\)
0.773399 + 0.633919i \(0.218555\pi\)
\(44\) −0.326352 + 1.85083i −0.0491994 + 0.279024i
\(45\) 0 0
\(46\) −3.35117 − 5.80439i −0.494103 − 0.855811i
\(47\) 1.91875 − 0.698367i 0.279878 − 0.101867i −0.198267 − 0.980148i \(-0.563531\pi\)
0.478145 + 0.878281i \(0.341309\pi\)
\(48\) 0 0
\(49\) 3.35844 + 5.81699i 0.479777 + 0.830999i
\(50\) 1.79813 − 3.11446i 0.254294 − 0.440451i
\(51\) 0 0
\(52\) −2.97178 + 2.49362i −0.412112 + 0.345803i
\(53\) −9.93629 − 8.33754i −1.36485 − 1.14525i −0.974450 − 0.224605i \(-0.927891\pi\)
−0.390404 − 0.920643i \(-0.627665\pi\)
\(54\) 0 0
\(55\) −2.09240 − 0.761570i −0.282139 − 0.102690i
\(56\) 0.532089 0.0711034
\(57\) 0 0
\(58\) 4.02229 0.528152
\(59\) −2.51842 − 0.916629i −0.327870 − 0.119335i 0.172840 − 0.984950i \(-0.444706\pi\)
−0.500710 + 0.865615i \(0.666928\pi\)
\(60\) 0 0
\(61\) −8.69253 − 7.29390i −1.11296 − 0.933888i −0.114737 − 0.993396i \(-0.536603\pi\)
−0.998228 + 0.0595075i \(0.981047\pi\)
\(62\) −1.50000 + 1.25865i −0.190500 + 0.159849i
\(63\) 0 0
\(64\) −0.500000 + 0.866025i −0.0625000 + 0.108253i
\(65\) −2.29813 − 3.98048i −0.285048 − 0.493718i
\(66\) 0 0
\(67\) 10.4966 − 3.82045i 1.28236 − 0.466742i 0.391150 − 0.920327i \(-0.372077\pi\)
0.891213 + 0.453585i \(0.149855\pi\)
\(68\) 0.581252 + 1.00676i 0.0704871 + 0.122087i
\(69\) 0 0
\(70\) −0.109470 + 0.620838i −0.0130842 + 0.0742043i
\(71\) −4.65136 + 3.90295i −0.552015 + 0.463195i −0.875623 − 0.482996i \(-0.839549\pi\)
0.323608 + 0.946191i \(0.395104\pi\)
\(72\) 0 0
\(73\) −0.0569038 − 0.322718i −0.00666009 − 0.0377712i 0.981297 − 0.192502i \(-0.0616601\pi\)
−0.987957 + 0.154731i \(0.950549\pi\)
\(74\) −6.47178 − 2.35554i −0.752329 − 0.273825i
\(75\) 0 0
\(76\) −4.21688 − 1.10359i −0.483709 − 0.126590i
\(77\) −1.00000 −0.113961
\(78\) 0 0
\(79\) −2.80154 − 15.8883i −0.315198 − 1.78757i −0.571109 − 0.820874i \(-0.693487\pi\)
0.255912 − 0.966700i \(-0.417624\pi\)
\(80\) −0.907604 − 0.761570i −0.101473 − 0.0851461i
\(81\) 0 0
\(82\) 1.56031 − 8.84894i 0.172307 − 0.977202i
\(83\) 5.78699 − 10.0234i 0.635205 − 1.10021i −0.351267 − 0.936275i \(-0.614249\pi\)
0.986472 − 0.163931i \(-0.0524175\pi\)
\(84\) 0 0
\(85\) −1.29426 + 0.471073i −0.140383 + 0.0510951i
\(86\) −2.27972 + 0.829748i −0.245828 + 0.0894741i
\(87\) 0 0
\(88\) 0.939693 − 1.62760i 0.100172 − 0.173502i
\(89\) 0.618089 − 3.50535i 0.0655173 − 0.371567i −0.934366 − 0.356314i \(-0.884033\pi\)
0.999884 − 0.0152532i \(-0.00485542\pi\)
\(90\) 0 0
\(91\) −1.58125 − 1.32683i −0.165760 − 0.139089i
\(92\) 1.16385 + 6.60051i 0.121340 + 0.688151i
\(93\) 0 0
\(94\) −2.04189 −0.210605
\(95\) 2.15523 − 4.69318i 0.221122 − 0.481510i
\(96\) 0 0
\(97\) −5.52481 − 2.01087i −0.560960 − 0.204173i 0.0459494 − 0.998944i \(-0.485369\pi\)
−0.606909 + 0.794771i \(0.707591\pi\)
\(98\) −1.16637 − 6.61484i −0.117822 − 0.668199i
\(99\) 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 342.2.u.a.289.1 6
3.2 odd 2 114.2.i.d.61.1 yes 6
12.11 even 2 912.2.bo.f.289.1 6
19.5 even 9 inner 342.2.u.a.271.1 6
19.9 even 9 6498.2.a.bs.1.2 3
19.10 odd 18 6498.2.a.bn.1.2 3
57.5 odd 18 114.2.i.d.43.1 ✓ 6
57.29 even 18 2166.2.a.u.1.2 3
57.47 odd 18 2166.2.a.o.1.2 3
228.119 even 18 912.2.bo.f.385.1 6
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
114.2.i.d.43.1 ✓ 6 57.5 odd 18
114.2.i.d.61.1 yes 6 3.2 odd 2
342.2.u.a.271.1 6 19.5 even 9 inner
342.2.u.a.289.1 6 1.1 even 1 trivial
912.2.bo.f.289.1 6 12.11 even 2
912.2.bo.f.385.1 6 228.119 even 18
2166.2.a.o.1.2 3 57.47 odd 18
2166.2.a.u.1.2 3 57.29 even 18
6498.2.a.bn.1.2 3 19.10 odd 18
6498.2.a.bs.1.2 3 19.9 even 9