Properties

Label 83.7.b.a.82.1
Level $83$
Weight $7$
Character 83.82
Self dual yes
Analytic conductor $19.094$
Analytic rank $0$
Dimension $1$
CM discriminant -83
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] = [83,7,Mod(82,83)] 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("83.82"); S:= CuspForms(chi, 7); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(83, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([1])) N = Newforms(chi, 7, names="a")
 
Level: \( N \) \(=\) \( 83 \)
Weight: \( k \) \(=\) \( 7 \)
Character orbit: \([\chi]\) \(=\) 83.b (of order \(2\), degree \(1\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [1] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(1)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(19.0944889404\)
Analytic rank: \(0\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{U}(1)[D_{2}]$

Embedding invariants

Embedding label 82.1
Character \(\chi\) \(=\) 83.82

$q$-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)
 
\(f(q)\) \(=\) \(q-29.0000 q^{3} +64.0000 q^{4} -61.0000 q^{7} +112.000 q^{9} +587.000 q^{11} -1856.00 q^{12} +4096.00 q^{16} -4201.00 q^{17} +1769.00 q^{21} +8066.00 q^{23} +15625.0 q^{25} +17893.0 q^{27} -3904.00 q^{28} +46703.0 q^{29} +40907.0 q^{31} -17023.0 q^{33} +7168.00 q^{36} +10919.0 q^{37} +5042.00 q^{41} +37568.0 q^{44} -118784. q^{48} -113928. q^{49} +121829. q^{51} -188917. q^{59} +435287. q^{61} -6832.00 q^{63} +262144. q^{64} -268864. q^{68} -233914. q^{69} -453125. q^{75} -35807.0 q^{77} -600545. q^{81} -571787. q^{83} +113216. q^{84} -1.35439e6 q^{87} +516224. q^{92} -1.18630e6 q^{93} +65744.0 q^{99} +O(q^{100})\)

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/83\mathbb{Z}\right)^\times\).

\(n\) \(2\)
\(\chi(n)\) \(-1\)

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 1.00000 \(0\)
−1.00000 \(\pi\)
\(3\) −29.0000 −1.07407 −0.537037 − 0.843559i \(-0.680456\pi\)
−0.537037 + 0.843559i \(0.680456\pi\)
\(4\) 64.0000 1.00000
\(5\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(6\) 0 0
\(7\) −61.0000 −0.177843 −0.0889213 − 0.996039i \(-0.528342\pi\)
−0.0889213 + 0.996039i \(0.528342\pi\)
\(8\) 0 0
\(9\) 112.000 0.153635
\(10\) 0 0
\(11\) 587.000 0.441022 0.220511 − 0.975385i \(-0.429228\pi\)
0.220511 + 0.975385i \(0.429228\pi\)
\(12\) −1856.00 −1.07407
\(13\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(14\) 0 0
\(15\) 0 0
\(16\) 4096.00 1.00000
\(17\) −4201.00 −0.855078 −0.427539 − 0.903997i \(-0.640619\pi\)
−0.427539 + 0.903997i \(0.640619\pi\)
\(18\) 0 0
\(19\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(20\) 0 0
\(21\) 1769.00 0.191016
\(22\) 0 0
\(23\) 8066.00 0.662941 0.331470 − 0.943466i \(-0.392455\pi\)
0.331470 + 0.943466i \(0.392455\pi\)
\(24\) 0 0
\(25\) 15625.0 1.00000
\(26\) 0 0
\(27\) 17893.0 0.909059
\(28\) −3904.00 −0.177843
\(29\) 46703.0 1.91492 0.957460 − 0.288565i \(-0.0931781\pi\)
0.957460 + 0.288565i \(0.0931781\pi\)
\(30\) 0 0
\(31\) 40907.0 1.37313 0.686566 − 0.727067i \(-0.259117\pi\)
0.686566 + 0.727067i \(0.259117\pi\)
\(32\) 0 0
\(33\) −17023.0 −0.473690
\(34\) 0 0
\(35\) 0 0
\(36\) 7168.00 0.153635
\(37\) 10919.0 0.215565 0.107782 − 0.994175i \(-0.465625\pi\)
0.107782 + 0.994175i \(0.465625\pi\)
\(38\) 0 0
\(39\) 0 0
\(40\) 0 0
\(41\) 5042.00 0.0731562 0.0365781 − 0.999331i \(-0.488354\pi\)
0.0365781 + 0.999331i \(0.488354\pi\)
\(42\) 0 0
\(43\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(44\) 37568.0 0.441022
\(45\) 0 0
\(46\) 0 0
\(47\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(48\) −118784. −1.07407
\(49\) −113928. −0.968372
\(50\) 0 0
\(51\) 121829. 0.918418
\(52\) 0 0
\(53\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(54\) 0 0
\(55\) 0 0
\(56\) 0 0
\(57\) 0 0
\(58\) 0 0
\(59\) −188917. −0.919846 −0.459923 − 0.887959i \(-0.652123\pi\)
−0.459923 + 0.887959i \(0.652123\pi\)
\(60\) 0 0
\(61\) 435287. 1.91772 0.958862 − 0.283872i \(-0.0916191\pi\)
0.958862 + 0.283872i \(0.0916191\pi\)
\(62\) 0 0
\(63\) −6832.00 −0.0273229
\(64\) 262144. 1.00000
\(65\) 0 0
\(66\) 0 0
\(67\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(68\) −268864. −0.855078
\(69\) −233914. −0.712047
\(70\) 0 0
\(71\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(72\) 0 0
\(73\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(74\) 0 0
\(75\) −453125. −1.07407
\(76\) 0 0
\(77\) −35807.0 −0.0784324
\(78\) 0 0
\(79\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(80\) 0 0
\(81\) −600545. −1.13003
\(82\) 0 0
\(83\) −571787. −1.00000
\(84\) 113216. 0.191016
\(85\) 0 0
\(86\) 0 0
\(87\) −1.35439e6 −2.05677
\(88\) 0 0
\(89\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(90\) 0 0
\(91\) 0 0
\(92\) 516224. 0.662941
\(93\) −1.18630e6 −1.47485
\(94\) 0 0
\(95\) 0 0
\(96\) 0 0
\(97\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(98\) 0 0
\(99\) 65744.0 0.0677564
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 83.7.b.a.82.1 ✓ 1
83.82 odd 2 CM 83.7.b.a.82.1 ✓ 1
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
83.7.b.a.82.1 ✓ 1 1.1 even 1 trivial
83.7.b.a.82.1 ✓ 1 83.82 odd 2 CM