Properties

Label 630.2.p.a.307.4
Level $630$
Weight $2$
Character 630.307
Analytic conductor $5.031$
Analytic rank $0$
Dimension $8$
Inner twists $4$

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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] = [630,2,Mod(307,630)] 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("630.307"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(630, base_ring=CyclotomicField(4)) chi = DirichletCharacter(H, H._module([0, 1, 2])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 630 = 2 \cdot 3^{2} \cdot 5 \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 630.p (of order \(4\), degree \(2\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [8,0,0,0,0,0,-8] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(7)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(5.03057532734\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(4\) over \(\Q(i)\)
Coefficient field: \(\Q(\zeta_{16})\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 70)
Sato-Tate group: $\mathrm{SU}(2)[C_{4}]$

Embedding invariants

Embedding label 307.4
Root \(-0.923880 - 0.382683i\) of defining polynomial
Character \(\chi\) \(=\) 630.307
Dual form 630.2.p.a.433.4

$q$-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)
 
\(f(q)\) \(=\) \(q+(0.707107 + 0.707107i) q^{2} +1.00000i q^{4} +(0.158513 + 2.23044i) q^{5} +(-2.47247 - 0.941740i) q^{7} +(-0.707107 + 0.707107i) q^{8} +(-1.46508 + 1.68925i) q^{10} -2.82843 q^{11} +(4.23671 + 4.23671i) q^{13} +(-1.08239 - 2.41421i) q^{14} -1.00000 q^{16} +(-3.69552 + 3.69552i) q^{17} -1.39942 q^{19} +(-2.23044 + 0.158513i) q^{20} +(-2.00000 - 2.00000i) q^{22} +(-0.414214 + 0.414214i) q^{23} +(-4.94975 + 0.707107i) q^{25} +5.99162i q^{26} +(0.941740 - 2.47247i) q^{28} +0.828427i q^{29} -1.53073i q^{31} +(-0.707107 - 0.707107i) q^{32} -5.22625 q^{34} +(1.70858 - 5.66399i) q^{35} +(2.58579 + 2.58579i) q^{37} +(-0.989538 - 0.989538i) q^{38} +(-1.68925 - 1.46508i) q^{40} +3.69552i q^{41} +(4.00000 - 4.00000i) q^{43} -2.82843i q^{44} -0.585786 q^{46} +(1.08239 - 1.08239i) q^{47} +(5.22625 + 4.65685i) q^{49} +(-4.00000 - 3.00000i) q^{50} +(-4.23671 + 4.23671i) q^{52} +(8.24264 - 8.24264i) q^{53} +(-0.448342 - 6.30864i) q^{55} +(2.41421 - 1.08239i) q^{56} +(-0.585786 + 0.585786i) q^{58} -9.23880 q^{59} +6.43996i q^{61} +(1.08239 - 1.08239i) q^{62} -1.00000i q^{64} +(-8.77817 + 10.1213i) q^{65} +(10.4853 + 10.4853i) q^{67} +(-3.69552 - 3.69552i) q^{68} +(5.21319 - 2.79690i) q^{70} +0.585786 q^{71} +(-4.14386 - 4.14386i) q^{73} +3.65685i q^{74} -1.39942i q^{76} +(6.99321 + 2.66364i) q^{77} +5.07107i q^{79} +(-0.158513 - 2.23044i) q^{80} +(-2.61313 + 2.61313i) q^{82} +(5.31911 + 5.31911i) q^{83} +(-8.82843 - 7.65685i) q^{85} +5.65685 q^{86} +(2.00000 - 2.00000i) q^{88} +11.3492 q^{89} +(-6.48528 - 14.4650i) q^{91} +(-0.414214 - 0.414214i) q^{92} +1.53073 q^{94} +(-0.221825 - 3.12132i) q^{95} +(4.59220 - 4.59220i) q^{97} +(0.402625 + 6.98841i) q^{98} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q - 8 q^{7} - 8 q^{16} - 16 q^{22} + 8 q^{23} + 8 q^{28} + 8 q^{35} + 32 q^{37} + 32 q^{43} - 16 q^{46} - 32 q^{50} + 32 q^{53} + 8 q^{56} - 16 q^{58} - 8 q^{65} + 16 q^{67} - 24 q^{70} + 16 q^{71} + 16 q^{77}+ \cdots - 32 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/630\mathbb{Z}\right)^\times\).

\(n\) \(127\) \(281\) \(451\)
\(\chi(n)\) \(e\left(\frac{1}{4}\right)\) \(1\) \(-1\)

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:
\(n\) \(a_n\) \(a_n / n^{(k-1)/2}\) \( \alpha_n \) \( \theta_n \)
\(p\) \(a_p\) \(a_p / p^{(k-1)/2}\) \( \alpha_p\) \( \theta_p \)
\(2\) 0.707107 + 0.707107i 0.500000 + 0.500000i
\(3\) 0 0
\(4\) 1.00000i 0.500000i
\(5\) 0.158513 + 2.23044i 0.0708890 + 0.997484i
\(6\) 0 0
\(7\) −2.47247 0.941740i −0.934507 0.355944i
\(8\) −0.707107 + 0.707107i −0.250000 + 0.250000i
\(9\) 0 0
\(10\) −1.46508 + 1.68925i −0.463298 + 0.534187i
\(11\) −2.82843 −0.852803 −0.426401 0.904534i \(-0.640219\pi\)
−0.426401 + 0.904534i \(0.640219\pi\)
\(12\) 0 0
\(13\) 4.23671 + 4.23671i 1.17505 + 1.17505i 0.980989 + 0.194064i \(0.0621670\pi\)
0.194064 + 0.980989i \(0.437833\pi\)
\(14\) −1.08239 2.41421i −0.289281 0.645226i
\(15\) 0 0
\(16\) −1.00000 −0.250000
\(17\) −3.69552 + 3.69552i −0.896295 + 0.896295i −0.995106 0.0988114i \(-0.968496\pi\)
0.0988114 + 0.995106i \(0.468496\pi\)
\(18\) 0 0
\(19\) −1.39942 −0.321048 −0.160524 0.987032i \(-0.551318\pi\)
−0.160524 + 0.987032i \(0.551318\pi\)
\(20\) −2.23044 + 0.158513i −0.498742 + 0.0354445i
\(21\) 0 0
\(22\) −2.00000 2.00000i −0.426401 0.426401i
\(23\) −0.414214 + 0.414214i −0.0863695 + 0.0863695i −0.748972 0.662602i \(-0.769452\pi\)
0.662602 + 0.748972i \(0.269452\pi\)
\(24\) 0 0
\(25\) −4.94975 + 0.707107i −0.989949 + 0.141421i
\(26\) 5.99162i 1.17505i
\(27\) 0 0
\(28\) 0.941740 2.47247i 0.177972 0.467254i
\(29\) 0.828427i 0.153835i 0.997037 + 0.0769175i \(0.0245078\pi\)
−0.997037 + 0.0769175i \(0.975492\pi\)
\(30\) 0 0
\(31\) 1.53073i 0.274928i −0.990507 0.137464i \(-0.956105\pi\)
0.990507 0.137464i \(-0.0438951\pi\)
\(32\) −0.707107 0.707107i −0.125000 0.125000i
\(33\) 0 0
\(34\) −5.22625 −0.896295
\(35\) 1.70858 5.66399i 0.288802 0.957389i
\(36\) 0 0
\(37\) 2.58579 + 2.58579i 0.425101 + 0.425101i 0.886956 0.461855i \(-0.152816\pi\)
−0.461855 + 0.886956i \(0.652816\pi\)
\(38\) −0.989538 0.989538i −0.160524 0.160524i
\(39\) 0 0
\(40\) −1.68925 1.46508i −0.267093 0.231649i
\(41\) 3.69552i 0.577143i 0.957458 + 0.288571i \(0.0931803\pi\)
−0.957458 + 0.288571i \(0.906820\pi\)
\(42\) 0 0
\(43\) 4.00000 4.00000i 0.609994 0.609994i −0.332950 0.942944i \(-0.608044\pi\)
0.942944 + 0.332950i \(0.108044\pi\)
\(44\) 2.82843i 0.426401i
\(45\) 0 0
\(46\) −0.585786 −0.0863695
\(47\) 1.08239 1.08239i 0.157883 0.157883i −0.623745 0.781628i \(-0.714390\pi\)
0.781628 + 0.623745i \(0.214390\pi\)
\(48\) 0 0
\(49\) 5.22625 + 4.65685i 0.746607 + 0.665265i
\(50\) −4.00000 3.00000i −0.565685 0.424264i
\(51\) 0 0
\(52\) −4.23671 + 4.23671i −0.587527 + 0.587527i
\(53\) 8.24264 8.24264i 1.13221 1.13221i 0.142405 0.989808i \(-0.454516\pi\)
0.989808 0.142405i \(-0.0454837\pi\)
\(54\) 0 0
\(55\) −0.448342 6.30864i −0.0604544 0.850657i
\(56\) 2.41421 1.08239i 0.322613 0.144641i
\(57\) 0 0
\(58\) −0.585786 + 0.585786i −0.0769175 + 0.0769175i
\(59\) −9.23880 −1.20279 −0.601394 0.798952i \(-0.705388\pi\)
−0.601394 + 0.798952i \(0.705388\pi\)
\(60\) 0 0
\(61\) 6.43996i 0.824552i 0.911059 + 0.412276i \(0.135266\pi\)
−0.911059 + 0.412276i \(0.864734\pi\)
\(62\) 1.08239 1.08239i 0.137464 0.137464i
\(63\) 0 0
\(64\) 1.00000i 0.125000i
\(65\) −8.77817 + 10.1213i −1.08880 + 1.25540i
\(66\) 0 0
\(67\) 10.4853 + 10.4853i 1.28098 + 1.28098i 0.940110 + 0.340871i \(0.110722\pi\)
0.340871 + 0.940110i \(0.389278\pi\)
\(68\) −3.69552 3.69552i −0.448147 0.448147i
\(69\) 0 0
\(70\) 5.21319 2.79690i 0.623096 0.334293i
\(71\) 0.585786 0.0695201 0.0347600 0.999396i \(-0.488933\pi\)
0.0347600 + 0.999396i \(0.488933\pi\)
\(72\) 0 0
\(73\) −4.14386 4.14386i −0.485002 0.485002i 0.421723 0.906725i \(-0.361426\pi\)
−0.906725 + 0.421723i \(0.861426\pi\)
\(74\) 3.65685i 0.425101i
\(75\) 0 0
\(76\) 1.39942i 0.160524i
\(77\) 6.99321 + 2.66364i 0.796950 + 0.303550i
\(78\) 0 0
\(79\) 5.07107i 0.570540i 0.958447 + 0.285270i \(0.0920832\pi\)
−0.958447 + 0.285270i \(0.907917\pi\)
\(80\) −0.158513 2.23044i −0.0177223 0.249371i
\(81\) 0 0
\(82\) −2.61313 + 2.61313i −0.288571 + 0.288571i
\(83\) 5.31911 + 5.31911i 0.583848 + 0.583848i 0.935958 0.352111i \(-0.114536\pi\)
−0.352111 + 0.935958i \(0.614536\pi\)
\(84\) 0 0
\(85\) −8.82843 7.65685i −0.957577 0.830502i
\(86\) 5.65685 0.609994
\(87\) 0 0
\(88\) 2.00000 2.00000i 0.213201 0.213201i
\(89\) 11.3492 1.20301 0.601506 0.798869i \(-0.294568\pi\)
0.601506 + 0.798869i \(0.294568\pi\)
\(90\) 0 0
\(91\) −6.48528 14.4650i −0.679842 1.51635i
\(92\) −0.414214 0.414214i −0.0431847 0.0431847i
\(93\) 0 0
\(94\) 1.53073 0.157883
\(95\) −0.221825 3.12132i −0.0227588 0.320241i
\(96\) 0 0
\(97\) 4.59220 4.59220i 0.466267 0.466267i −0.434436 0.900703i \(-0.643052\pi\)
0.900703 + 0.434436i \(0.143052\pi\)
\(98\) 0.402625 + 6.98841i 0.0406713 + 0.705936i
\(99\) 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 630.2.p.a.307.4 8
3.2 odd 2 70.2.g.a.27.1 yes 8
5.3 odd 4 inner 630.2.p.a.433.3 8
7.6 odd 2 inner 630.2.p.a.307.3 8
12.11 even 2 560.2.bj.c.97.4 8
15.2 even 4 350.2.g.a.293.3 8
15.8 even 4 70.2.g.a.13.2 yes 8
15.14 odd 2 350.2.g.a.307.4 8
21.2 odd 6 490.2.l.a.227.2 16
21.5 even 6 490.2.l.a.227.1 16
21.11 odd 6 490.2.l.a.117.3 16
21.17 even 6 490.2.l.a.117.4 16
21.20 even 2 70.2.g.a.27.2 yes 8
35.13 even 4 inner 630.2.p.a.433.4 8
60.23 odd 4 560.2.bj.c.433.1 8
84.83 odd 2 560.2.bj.c.97.1 8
105.23 even 12 490.2.l.a.423.4 16
105.38 odd 12 490.2.l.a.313.2 16
105.53 even 12 490.2.l.a.313.1 16
105.62 odd 4 350.2.g.a.293.4 8
105.68 odd 12 490.2.l.a.423.3 16
105.83 odd 4 70.2.g.a.13.1 8
105.104 even 2 350.2.g.a.307.3 8
420.83 even 4 560.2.bj.c.433.4 8
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
70.2.g.a.13.1 8 105.83 odd 4
70.2.g.a.13.2 yes 8 15.8 even 4
70.2.g.a.27.1 yes 8 3.2 odd 2
70.2.g.a.27.2 yes 8 21.20 even 2
350.2.g.a.293.3 8 15.2 even 4
350.2.g.a.293.4 8 105.62 odd 4
350.2.g.a.307.3 8 105.104 even 2
350.2.g.a.307.4 8 15.14 odd 2
490.2.l.a.117.3 16 21.11 odd 6
490.2.l.a.117.4 16 21.17 even 6
490.2.l.a.227.1 16 21.5 even 6
490.2.l.a.227.2 16 21.2 odd 6
490.2.l.a.313.1 16 105.53 even 12
490.2.l.a.313.2 16 105.38 odd 12
490.2.l.a.423.3 16 105.68 odd 12
490.2.l.a.423.4 16 105.23 even 12
560.2.bj.c.97.1 8 84.83 odd 2
560.2.bj.c.97.4 8 12.11 even 2
560.2.bj.c.433.1 8 60.23 odd 4
560.2.bj.c.433.4 8 420.83 even 4
630.2.p.a.307.3 8 7.6 odd 2 inner
630.2.p.a.307.4 8 1.1 even 1 trivial
630.2.p.a.433.3 8 5.3 odd 4 inner
630.2.p.a.433.4 8 35.13 even 4 inner