Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [90,5,Mod(37,90)] 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("90.37"); S:= CuspForms(chi, 5); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(90, base_ring=CyclotomicField(4)) chi = DirichletCharacter(H, H._module([0, 1])) N = Newforms(chi, 5, names="a")
 
Level: \( N \) \(=\) \( 90 = 2 \cdot 3^{2} \cdot 5 \)
Weight: \( k \) \(=\) \( 5 \)
Character orbit: \([\chi]\) \(=\) 90.g (of order \(4\), degree \(2\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,-4,0,0,30] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(5)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(9.30329667755\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(i)\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 10)
Sato-Tate group: $\mathrm{SU}(2)[C_{4}]$

Embedding invariants

Embedding label 73.1
Root \(-1.00000i\) of defining polynomial
Character \(\chi\) \(=\) 90.73
Dual form 90.5.g.a.37.1

$q$-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)
 
\(f(q)\) \(=\) \(q+(-2.00000 + 2.00000i) q^{2} -8.00000i q^{4} +(15.0000 - 20.0000i) q^{5} +(-19.0000 + 19.0000i) q^{7} +(16.0000 + 16.0000i) q^{8} +(10.0000 + 70.0000i) q^{10} -202.000 q^{11} +(-99.0000 - 99.0000i) q^{13} -76.0000i q^{14} -64.0000 q^{16} +(239.000 - 239.000i) q^{17} -40.0000i q^{19} +(-160.000 - 120.000i) q^{20} +(404.000 - 404.000i) q^{22} +(-541.000 - 541.000i) q^{23} +(-175.000 - 600.000i) q^{25} +396.000 q^{26} +(152.000 + 152.000i) q^{28} -200.000i q^{29} -758.000 q^{31} +(128.000 - 128.000i) q^{32} +956.000i q^{34} +(95.0000 + 665.000i) q^{35} +(141.000 - 141.000i) q^{37} +(80.0000 + 80.0000i) q^{38} +(560.000 - 80.0000i) q^{40} -1042.00 q^{41} +(-759.000 - 759.000i) q^{43} +1616.00i q^{44} +2164.00 q^{46} +(459.000 - 459.000i) q^{47} +1679.00i q^{49} +(1550.00 + 850.000i) q^{50} +(-792.000 + 792.000i) q^{52} +(1819.00 + 1819.00i) q^{53} +(-3030.00 + 4040.00i) q^{55} -608.000 q^{56} +(400.000 + 400.000i) q^{58} +4600.00i q^{59} +2082.00 q^{61} +(1516.00 - 1516.00i) q^{62} +512.000i q^{64} +(-3465.00 + 495.000i) q^{65} +(5081.00 - 5081.00i) q^{67} +(-1912.00 - 1912.00i) q^{68} +(-1520.00 - 1140.00i) q^{70} +3478.00 q^{71} +(-3479.00 - 3479.00i) q^{73} +564.000i q^{74} -320.000 q^{76} +(3838.00 - 3838.00i) q^{77} +7680.00i q^{79} +(-960.000 + 1280.00i) q^{80} +(2084.00 - 2084.00i) q^{82} +(-6081.00 - 6081.00i) q^{83} +(-1195.00 - 8365.00i) q^{85} +3036.00 q^{86} +(-3232.00 - 3232.00i) q^{88} -5680.00i q^{89} +3762.00 q^{91} +(-4328.00 + 4328.00i) q^{92} +1836.00i q^{94} +(-800.000 - 600.000i) q^{95} +(561.000 - 561.000i) q^{97} +(-3358.00 - 3358.00i) q^{98} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - 4 q^{2} + 30 q^{5} - 38 q^{7} + 32 q^{8} + 20 q^{10} - 404 q^{11} - 198 q^{13} - 128 q^{16} + 478 q^{17} - 320 q^{20} + 808 q^{22} - 1082 q^{23} - 350 q^{25} + 792 q^{26} + 304 q^{28} - 1516 q^{31}+ \cdots - 6716 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/90\mathbb{Z}\right)^\times\).

\(n\) \(11\) \(37\)
\(\chi(n)\) \(1\) \(e\left(\frac{3}{4}\right)\)

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:
\(n\) \(a_n\) \(a_n / n^{(k-1)/2}\) \( \alpha_n \) \( \theta_n \)
\(p\) \(a_p\) \(a_p / p^{(k-1)/2}\) \( \alpha_p\) \( \theta_p \)
\(2\) −2.00000 + 2.00000i −0.500000 + 0.500000i
\(3\) 0 0
\(4\) 8.00000i 0.500000i
\(5\) 15.0000 20.0000i 0.600000 0.800000i
\(6\) 0 0
\(7\) −19.0000 + 19.0000i −0.387755 + 0.387755i −0.873886 0.486131i \(-0.838408\pi\)
0.486131 + 0.873886i \(0.338408\pi\)
\(8\) 16.0000 + 16.0000i 0.250000 + 0.250000i
\(9\) 0 0
\(10\) 10.0000 + 70.0000i 0.100000 + 0.700000i
\(11\) −202.000 −1.66942 −0.834711 0.550689i \(-0.814365\pi\)
−0.834711 + 0.550689i \(0.814365\pi\)
\(12\) 0 0
\(13\) −99.0000 99.0000i −0.585799 0.585799i 0.350692 0.936491i \(-0.385946\pi\)
−0.936491 + 0.350692i \(0.885946\pi\)
\(14\) 76.0000i 0.387755i
\(15\) 0 0
\(16\) −64.0000 −0.250000
\(17\) 239.000 239.000i 0.826990 0.826990i −0.160110 0.987099i \(-0.551185\pi\)
0.987099 + 0.160110i \(0.0511848\pi\)
\(18\) 0 0
\(19\) 40.0000i 0.110803i −0.998464 0.0554017i \(-0.982356\pi\)
0.998464 0.0554017i \(-0.0176439\pi\)
\(20\) −160.000 120.000i −0.400000 0.300000i
\(21\) 0 0
\(22\) 404.000 404.000i 0.834711 0.834711i
\(23\) −541.000 541.000i −1.02268 1.02268i −0.999737 0.0229476i \(-0.992695\pi\)
−0.0229476 0.999737i \(-0.507305\pi\)
\(24\) 0 0
\(25\) −175.000 600.000i −0.280000 0.960000i
\(26\) 396.000 0.585799
\(27\) 0 0
\(28\) 152.000 + 152.000i 0.193878 + 0.193878i
\(29\) 200.000i 0.237812i −0.992906 0.118906i \(-0.962061\pi\)
0.992906 0.118906i \(-0.0379387\pi\)
\(30\) 0 0
\(31\) −758.000 −0.788762 −0.394381 0.918947i \(-0.629041\pi\)
−0.394381 + 0.918947i \(0.629041\pi\)
\(32\) 128.000 128.000i 0.125000 0.125000i
\(33\) 0 0
\(34\) 956.000i 0.826990i
\(35\) 95.0000 + 665.000i 0.0775510 + 0.542857i
\(36\) 0 0
\(37\) 141.000 141.000i 0.102995 0.102995i −0.653732 0.756726i \(-0.726797\pi\)
0.756726 + 0.653732i \(0.226797\pi\)
\(38\) 80.0000 + 80.0000i 0.0554017 + 0.0554017i
\(39\) 0 0
\(40\) 560.000 80.0000i 0.350000 0.0500000i
\(41\) −1042.00 −0.619869 −0.309935 0.950758i \(-0.600307\pi\)
−0.309935 + 0.950758i \(0.600307\pi\)
\(42\) 0 0
\(43\) −759.000 759.000i −0.410492 0.410492i 0.471418 0.881910i \(-0.343742\pi\)
−0.881910 + 0.471418i \(0.843742\pi\)
\(44\) 1616.00i 0.834711i
\(45\) 0 0
\(46\) 2164.00 1.02268
\(47\) 459.000 459.000i 0.207786 0.207786i −0.595540 0.803326i \(-0.703062\pi\)
0.803326 + 0.595540i \(0.203062\pi\)
\(48\) 0 0
\(49\) 1679.00i 0.699292i
\(50\) 1550.00 + 850.000i 0.620000 + 0.340000i
\(51\) 0 0
\(52\) −792.000 + 792.000i −0.292899 + 0.292899i
\(53\) 1819.00 + 1819.00i 0.647561 + 0.647561i 0.952403 0.304842i \(-0.0986035\pi\)
−0.304842 + 0.952403i \(0.598604\pi\)
\(54\) 0 0
\(55\) −3030.00 + 4040.00i −1.00165 + 1.33554i
\(56\) −608.000 −0.193878
\(57\) 0 0
\(58\) 400.000 + 400.000i 0.118906 + 0.118906i
\(59\) 4600.00i 1.32146i 0.750624 + 0.660730i \(0.229753\pi\)
−0.750624 + 0.660730i \(0.770247\pi\)
\(60\) 0 0
\(61\) 2082.00 0.559527 0.279764 0.960069i \(-0.409744\pi\)
0.279764 + 0.960069i \(0.409744\pi\)
\(62\) 1516.00 1516.00i 0.394381 0.394381i
\(63\) 0 0
\(64\) 512.000i 0.125000i
\(65\) −3465.00 + 495.000i −0.820118 + 0.117160i
\(66\) 0 0
\(67\) 5081.00 5081.00i 1.13188 1.13188i 0.142013 0.989865i \(-0.454642\pi\)
0.989865 0.142013i \(-0.0453575\pi\)
\(68\) −1912.00 1912.00i −0.413495 0.413495i
\(69\) 0 0
\(70\) −1520.00 1140.00i −0.310204 0.232653i
\(71\) 3478.00 0.689942 0.344971 0.938613i \(-0.387889\pi\)
0.344971 + 0.938613i \(0.387889\pi\)
\(72\) 0 0
\(73\) −3479.00 3479.00i −0.652843 0.652843i 0.300834 0.953677i \(-0.402735\pi\)
−0.953677 + 0.300834i \(0.902735\pi\)
\(74\) 564.000i 0.102995i
\(75\) 0 0
\(76\) −320.000 −0.0554017
\(77\) 3838.00 3838.00i 0.647327 0.647327i
\(78\) 0 0
\(79\) 7680.00i 1.23057i 0.788304 + 0.615286i \(0.210959\pi\)
−0.788304 + 0.615286i \(0.789041\pi\)
\(80\) −960.000 + 1280.00i −0.150000 + 0.200000i
\(81\) 0 0
\(82\) 2084.00 2084.00i 0.309935 0.309935i
\(83\) −6081.00 6081.00i −0.882712 0.882712i 0.111098 0.993809i \(-0.464563\pi\)
−0.993809 + 0.111098i \(0.964563\pi\)
\(84\) 0 0
\(85\) −1195.00 8365.00i −0.165398 1.15779i
\(86\) 3036.00 0.410492
\(87\) 0 0
\(88\) −3232.00 3232.00i −0.417355 0.417355i
\(89\) 5680.00i 0.717081i −0.933514 0.358541i \(-0.883274\pi\)
0.933514 0.358541i \(-0.116726\pi\)
\(90\) 0 0
\(91\) 3762.00 0.454293
\(92\) −4328.00 + 4328.00i −0.511342 + 0.511342i
\(93\) 0 0
\(94\) 1836.00i 0.207786i
\(95\) −800.000 600.000i −0.0886427 0.0664820i
\(96\) 0 0
\(97\) 561.000 561.000i 0.0596238 0.0596238i −0.676666 0.736290i \(-0.736576\pi\)
0.736290 + 0.676666i \(0.236576\pi\)
\(98\) −3358.00 3358.00i −0.349646 0.349646i
\(99\) 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 90.5.g.a.73.1 2
3.2 odd 2 10.5.c.b.3.1 2
5.2 odd 4 inner 90.5.g.a.37.1 2
5.3 odd 4 450.5.g.b.307.1 2
5.4 even 2 450.5.g.b.343.1 2
12.11 even 2 80.5.p.c.33.1 2
15.2 even 4 10.5.c.b.7.1 yes 2
15.8 even 4 50.5.c.a.7.1 2
15.14 odd 2 50.5.c.a.43.1 2
24.5 odd 2 320.5.p.d.193.1 2
24.11 even 2 320.5.p.g.193.1 2
60.23 odd 4 400.5.p.b.257.1 2
60.47 odd 4 80.5.p.c.17.1 2
60.59 even 2 400.5.p.b.193.1 2
120.77 even 4 320.5.p.d.257.1 2
120.107 odd 4 320.5.p.g.257.1 2
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
10.5.c.b.3.1 2 3.2 odd 2
10.5.c.b.7.1 yes 2 15.2 even 4
50.5.c.a.7.1 2 15.8 even 4
50.5.c.a.43.1 2 15.14 odd 2
80.5.p.c.17.1 2 60.47 odd 4
80.5.p.c.33.1 2 12.11 even 2
90.5.g.a.37.1 2 5.2 odd 4 inner
90.5.g.a.73.1 2 1.1 even 1 trivial
320.5.p.d.193.1 2 24.5 odd 2
320.5.p.d.257.1 2 120.77 even 4
320.5.p.g.193.1 2 24.11 even 2
320.5.p.g.257.1 2 120.107 odd 4
400.5.p.b.193.1 2 60.59 even 2
400.5.p.b.257.1 2 60.23 odd 4
450.5.g.b.307.1 2 5.3 odd 4
450.5.g.b.343.1 2 5.4 even 2