Properties

Label 85.2.b.a.69.7
Level $85$
Weight $2$
Character 85.69
Analytic conductor $0.679$
Analytic rank $0$
Dimension $8$
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] = [85,2,Mod(69,85)] 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("85.69"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(85, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([1, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 85 = 5 \cdot 17 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 85.b (of order \(2\), degree \(1\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(0)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(0.678728417181\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: 8.0.619810816.2
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - 2x^{5} + 14x^{4} - 8x^{3} + 2x^{2} + 2x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 2 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

Embedding invariants

Embedding label 69.7
Root \(0.561103 + 0.561103i\) of defining polynomial
Character \(\chi\) \(=\) 85.69
Dual form 85.2.b.a.69.2

$q$-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)
 
\(f(q)\) \(=\) \(q+2.03032i q^{2} +2.37033i q^{3} -2.12221 q^{4} +(1.70032 - 1.45220i) q^{5} -4.81252 q^{6} -5.03032i q^{7} -0.248119i q^{8} -2.61845 q^{9} +(2.94844 + 3.45220i) q^{10} -1.90812 q^{11} -5.03032i q^{12} +1.04155i q^{13} +10.2132 q^{14} +(3.44220 + 4.03032i) q^{15} -3.74065 q^{16} +1.00000i q^{17} -5.31629i q^{18} -3.31999 q^{19} +(-3.60844 + 3.08188i) q^{20} +11.9235 q^{21} -3.87409i q^{22} +0.125912i q^{23} +0.588123 q^{24} +(0.782203 - 4.93844i) q^{25} -2.11468 q^{26} +0.904410i q^{27} +10.6754i q^{28} +5.56441 q^{29} +(-8.18285 + 6.98877i) q^{30} -4.99629 q^{31} -8.09097i q^{32} -4.52285i q^{33} -2.03032 q^{34} +(-7.30506 - 8.55318i) q^{35} +5.55688 q^{36} +1.56441i q^{37} -6.74065i q^{38} -2.46881 q^{39} +(-0.360320 - 0.421883i) q^{40} +4.72064 q^{41} +24.2085i q^{42} +4.46221i q^{43} +4.04941 q^{44} +(-4.45220 + 3.80252i) q^{45} -0.255643 q^{46} -1.04155i q^{47} -8.86656i q^{48} -18.3041 q^{49} +(10.0266 + 1.58812i) q^{50} -2.37033 q^{51} -2.21039i q^{52} +6.48883i q^{53} -1.83624 q^{54} +(-3.24441 + 2.77097i) q^{55} -1.24812 q^{56} -7.86946i q^{57} +11.2975i q^{58} +2.00000 q^{59} +(-7.30506 - 8.55318i) q^{60} +7.14882 q^{61} -10.1441i q^{62} +13.1716i q^{63} +8.94596 q^{64} +(1.51255 + 1.77097i) q^{65} +9.18285 q^{66} -3.28596i q^{67} -2.12221i q^{68} -0.298453 q^{69} +(17.3657 - 14.8316i) q^{70} -5.65629 q^{71} +0.649686i q^{72} -12.5295i q^{73} -3.17625 q^{74} +(11.7057 + 1.85408i) q^{75} +7.04571 q^{76} +9.59843i q^{77} -5.01249i q^{78} +13.3694 q^{79} +(-6.36032 + 5.43219i) q^{80} -9.99908 q^{81} +9.58442i q^{82} -1.14222i q^{83} -25.3041 q^{84} +(1.45220 + 1.70032i) q^{85} -9.05972 q^{86} +13.1895i q^{87} +0.473440i q^{88} -1.64090 q^{89} +(-7.72034 - 9.03941i) q^{90} +5.23934 q^{91} -0.267212i q^{92} -11.8428i q^{93} +2.11468 q^{94} +(-5.64506 + 4.82131i) q^{95} +19.1782 q^{96} -7.29753i q^{97} -37.1633i q^{98} +4.99629 q^{99} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q - 8 q^{4} - 2 q^{5} - 8 q^{9} + 6 q^{10} - 4 q^{11} + 12 q^{14} - 8 q^{16} - 8 q^{19} - 2 q^{20} + 24 q^{21} + 12 q^{24} - 12 q^{25} + 8 q^{29} - 16 q^{30} - 24 q^{31} + 4 q^{34} + 44 q^{39} + 22 q^{40}+ \cdots + 24 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/85\mathbb{Z}\right)^\times\).

\(n\) \(52\) \(71\)
\(\chi(n)\) \(-1\) \(1\)

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:
\(n\) \(a_n\) \(a_n / n^{(k-1)/2}\) \( \alpha_n \) \( \theta_n \)
\(p\) \(a_p\) \(a_p / p^{(k-1)/2}\) \( \alpha_p\) \( \theta_p \)
\(2\) 2.03032i 1.43565i 0.696221 + 0.717827i \(0.254863\pi\)
−0.696221 + 0.717827i \(0.745137\pi\)
\(3\) 2.37033i 1.36851i 0.729244 + 0.684254i \(0.239872\pi\)
−0.729244 + 0.684254i \(0.760128\pi\)
\(4\) −2.12221 −1.06110
\(5\) 1.70032 1.45220i 0.760408 0.649446i
\(6\) −4.81252 −1.96470
\(7\) 5.03032i 1.90128i −0.310291 0.950641i \(-0.600427\pi\)
0.310291 0.950641i \(-0.399573\pi\)
\(8\) 0.248119i 0.0877234i
\(9\) −2.61845 −0.872815
\(10\) 2.94844 + 3.45220i 0.932380 + 1.09168i
\(11\) −1.90812 −0.575318 −0.287659 0.957733i \(-0.592877\pi\)
−0.287659 + 0.957733i \(0.592877\pi\)
\(12\) 5.03032i 1.45213i
\(13\) 1.04155i 0.288874i 0.989514 + 0.144437i \(0.0461371\pi\)
−0.989514 + 0.144437i \(0.953863\pi\)
\(14\) 10.2132 2.72959
\(15\) 3.44220 + 4.03032i 0.888772 + 1.04062i
\(16\) −3.74065 −0.935163
\(17\) 1.00000i 0.242536i
\(18\) 5.31629i 1.25306i
\(19\) −3.31999 −0.761658 −0.380829 0.924645i \(-0.624361\pi\)
−0.380829 + 0.924645i \(0.624361\pi\)
\(20\) −3.60844 + 3.08188i −0.806871 + 0.689129i
\(21\) 11.9235 2.60192
\(22\) 3.87409i 0.825958i
\(23\) 0.125912i 0.0262545i 0.999914 + 0.0131273i \(0.00417866\pi\)
−0.999914 + 0.0131273i \(0.995821\pi\)
\(24\) 0.588123 0.120050
\(25\) 0.782203 4.93844i 0.156441 0.987687i
\(26\) −2.11468 −0.414724
\(27\) 0.904410i 0.174054i
\(28\) 10.6754i 2.01746i
\(29\) 5.56441 1.03328 0.516642 0.856201i \(-0.327182\pi\)
0.516642 + 0.856201i \(0.327182\pi\)
\(30\) −8.18285 + 6.98877i −1.49398 + 1.27597i
\(31\) −4.99629 −0.897361 −0.448680 0.893692i \(-0.648106\pi\)
−0.448680 + 0.893692i \(0.648106\pi\)
\(32\) 8.09097i 1.43029i
\(33\) 4.52285i 0.787328i
\(34\) −2.03032 −0.348197
\(35\) −7.30506 8.55318i −1.23478 1.44575i
\(36\) 5.55688 0.926147
\(37\) 1.56441i 0.257187i 0.991697 + 0.128593i \(0.0410462\pi\)
−0.991697 + 0.128593i \(0.958954\pi\)
\(38\) 6.74065i 1.09348i
\(39\) −2.46881 −0.395327
\(40\) −0.360320 0.421883i −0.0569716 0.0667055i
\(41\) 4.72064 0.737240 0.368620 0.929580i \(-0.379830\pi\)
0.368620 + 0.929580i \(0.379830\pi\)
\(42\) 24.2085i 3.73546i
\(43\) 4.46221i 0.680481i 0.940338 + 0.340240i \(0.110508\pi\)
−0.940338 + 0.340240i \(0.889492\pi\)
\(44\) 4.04941 0.610472
\(45\) −4.45220 + 3.80252i −0.663695 + 0.566846i
\(46\) −0.255643 −0.0376924
\(47\) 1.04155i 0.151926i −0.997111 0.0759629i \(-0.975797\pi\)
0.997111 0.0759629i \(-0.0242031\pi\)
\(48\) 8.86656i 1.27978i
\(49\) −18.3041 −2.61488
\(50\) 10.0266 + 1.58812i 1.41798 + 0.224595i
\(51\) −2.37033 −0.331912
\(52\) 2.21039i 0.306525i
\(53\) 6.48883i 0.891309i 0.895205 + 0.445654i \(0.147029\pi\)
−0.895205 + 0.445654i \(0.852971\pi\)
\(54\) −1.83624 −0.249881
\(55\) −3.24441 + 2.77097i −0.437477 + 0.373638i
\(56\) −1.24812 −0.166787
\(57\) 7.86946i 1.04234i
\(58\) 11.2975i 1.48344i
\(59\) 2.00000 0.260378 0.130189 0.991489i \(-0.458442\pi\)
0.130189 + 0.991489i \(0.458442\pi\)
\(60\) −7.30506 8.55318i −0.943079 1.10421i
\(61\) 7.14882 0.915313 0.457657 0.889129i \(-0.348689\pi\)
0.457657 + 0.889129i \(0.348689\pi\)
\(62\) 10.1441i 1.28830i
\(63\) 13.1716i 1.65947i
\(64\) 8.94596 1.11825
\(65\) 1.51255 + 1.77097i 0.187608 + 0.219662i
\(66\) 9.18285 1.13033
\(67\) 3.28596i 0.401444i −0.979648 0.200722i \(-0.935671\pi\)
0.979648 0.200722i \(-0.0643289\pi\)
\(68\) 2.12221i 0.257355i
\(69\) −0.298453 −0.0359296
\(70\) 17.3657 14.8316i 2.07560 1.77272i
\(71\) −5.65629 −0.671278 −0.335639 0.941991i \(-0.608952\pi\)
−0.335639 + 0.941991i \(0.608952\pi\)
\(72\) 0.649686i 0.0765663i
\(73\) 12.5295i 1.46646i −0.679980 0.733231i \(-0.738011\pi\)
0.679980 0.733231i \(-0.261989\pi\)
\(74\) −3.17625 −0.369231
\(75\) 11.7057 + 1.85408i 1.35166 + 0.214090i
\(76\) 7.04571 0.808198
\(77\) 9.59843i 1.09384i
\(78\) 5.01249i 0.567553i
\(79\) 13.3694 1.50418 0.752088 0.659063i \(-0.229047\pi\)
0.752088 + 0.659063i \(0.229047\pi\)
\(80\) −6.36032 + 5.43219i −0.711105 + 0.607338i
\(81\) −9.99908 −1.11101
\(82\) 9.58442i 1.05842i
\(83\) 1.14222i 0.125375i −0.998033 0.0626874i \(-0.980033\pi\)
0.998033 0.0626874i \(-0.0199671\pi\)
\(84\) −25.3041 −2.76091
\(85\) 1.45220 + 1.70032i 0.157514 + 0.184426i
\(86\) −9.05972 −0.976935
\(87\) 13.1895i 1.41406i
\(88\) 0.473440i 0.0504689i
\(89\) −1.64090 −0.173935 −0.0869677 0.996211i \(-0.527718\pi\)
−0.0869677 + 0.996211i \(0.527718\pi\)
\(90\) −7.72034 9.03941i −0.813795 0.952837i
\(91\) 5.23934 0.549232
\(92\) 0.267212i 0.0278588i
\(93\) 11.8428i 1.22805i
\(94\) 2.11468 0.218113
\(95\) −5.64506 + 4.82131i −0.579171 + 0.494656i
\(96\) 19.1782 1.95737
\(97\) 7.29753i 0.740952i −0.928842 0.370476i \(-0.879195\pi\)
0.928842 0.370476i \(-0.120805\pi\)
\(98\) 37.1633i 3.75406i
\(99\) 4.99629 0.502146
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 85.2.b.a.69.7 yes 8
3.2 odd 2 765.2.b.c.154.2 8
4.3 odd 2 1360.2.e.d.1089.2 8
5.2 odd 4 425.2.a.h.1.1 4
5.3 odd 4 425.2.a.g.1.4 4
5.4 even 2 inner 85.2.b.a.69.2 8
15.2 even 4 3825.2.a.bh.1.4 4
15.8 even 4 3825.2.a.bj.1.1 4
15.14 odd 2 765.2.b.c.154.7 8
17.16 even 2 1445.2.b.e.579.7 8
20.3 even 4 6800.2.a.bw.1.3 4
20.7 even 4 6800.2.a.bt.1.2 4
20.19 odd 2 1360.2.e.d.1089.7 8
85.33 odd 4 7225.2.a.v.1.4 4
85.67 odd 4 7225.2.a.w.1.1 4
85.84 even 2 1445.2.b.e.579.2 8
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
85.2.b.a.69.2 8 5.4 even 2 inner
85.2.b.a.69.7 yes 8 1.1 even 1 trivial
425.2.a.g.1.4 4 5.3 odd 4
425.2.a.h.1.1 4 5.2 odd 4
765.2.b.c.154.2 8 3.2 odd 2
765.2.b.c.154.7 8 15.14 odd 2
1360.2.e.d.1089.2 8 4.3 odd 2
1360.2.e.d.1089.7 8 20.19 odd 2
1445.2.b.e.579.2 8 85.84 even 2
1445.2.b.e.579.7 8 17.16 even 2
3825.2.a.bh.1.4 4 15.2 even 4
3825.2.a.bj.1.1 4 15.8 even 4
6800.2.a.bt.1.2 4 20.7 even 4
6800.2.a.bw.1.3 4 20.3 even 4
7225.2.a.v.1.4 4 85.33 odd 4
7225.2.a.w.1.1 4 85.67 odd 4