Properties

Label 72.2.i.a.25.1
Level $72$
Weight $2$
Character 72.25
Analytic conductor $0.575$
Analytic rank $0$
Dimension $2$
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] = [72,2,Mod(25,72)] 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("72.25"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(72, base_ring=CyclotomicField(6)) chi = DirichletCharacter(H, H._module([0, 0, 4])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 72 = 2^{3} \cdot 3^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 72.i (of order \(3\), degree \(2\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2] 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: no
Analytic conductor: \(0.574922894553\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\zeta_{6})\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

Embedding invariants

Embedding label 25.1
Root \(0.500000 - 0.866025i\) of defining polynomial
Character \(\chi\) \(=\) 72.25
Dual form 72.2.i.a.49.1

$q$-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)
 
\(f(q)\) \(=\) \(q-1.73205i q^{3} +(0.500000 + 0.866025i) q^{5} +(1.50000 - 2.59808i) q^{7} -3.00000 q^{9} +(-2.50000 + 4.33013i) q^{11} +(2.50000 + 4.33013i) q^{13} +(1.50000 - 0.866025i) q^{15} -2.00000 q^{17} -4.00000 q^{19} +(-4.50000 - 2.59808i) q^{21} +(0.500000 + 0.866025i) q^{23} +(2.00000 - 3.46410i) q^{25} +5.19615i q^{27} +(4.50000 - 7.79423i) q^{29} +(0.500000 + 0.866025i) q^{31} +(7.50000 + 4.33013i) q^{33} +3.00000 q^{35} -6.00000 q^{37} +(7.50000 - 4.33013i) q^{39} +(-1.50000 - 2.59808i) q^{41} +(-0.500000 + 0.866025i) q^{43} +(-1.50000 - 2.59808i) q^{45} +(1.50000 - 2.59808i) q^{47} +(-1.00000 - 1.73205i) q^{49} +3.46410i q^{51} +2.00000 q^{53} -5.00000 q^{55} +6.92820i q^{57} +(-5.50000 - 9.52628i) q^{59} +(-3.50000 + 6.06218i) q^{61} +(-4.50000 + 7.79423i) q^{63} +(-2.50000 + 4.33013i) q^{65} +(0.500000 + 0.866025i) q^{67} +(1.50000 - 0.866025i) q^{69} +4.00000 q^{71} -2.00000 q^{73} +(-6.00000 - 3.46410i) q^{75} +(7.50000 + 12.9904i) q^{77} +(-0.500000 + 0.866025i) q^{79} +9.00000 q^{81} +(-0.500000 + 0.866025i) q^{83} +(-1.00000 - 1.73205i) q^{85} +(-13.5000 - 7.79423i) q^{87} -18.0000 q^{89} +15.0000 q^{91} +(1.50000 - 0.866025i) q^{93} +(-2.00000 - 3.46410i) q^{95} +(6.50000 - 11.2583i) q^{97} +(7.50000 - 12.9904i) q^{99} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + q^{5} + 3 q^{7} - 6 q^{9} - 5 q^{11} + 5 q^{13} + 3 q^{15} - 4 q^{17} - 8 q^{19} - 9 q^{21} + q^{23} + 4 q^{25} + 9 q^{29} + q^{31} + 15 q^{33} + 6 q^{35} - 12 q^{37} + 15 q^{39} - 3 q^{41} - q^{43}+ \cdots + 15 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/72\mathbb{Z}\right)^\times\).

\(n\) \(37\) \(55\) \(65\)
\(\chi(n)\) \(1\) \(1\) \(e\left(\frac{2}{3}\right)\)

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 0
\(3\) 1.73205i 1.00000i
\(4\) 0 0
\(5\) 0.500000 + 0.866025i 0.223607 + 0.387298i 0.955901 0.293691i \(-0.0948835\pi\)
−0.732294 + 0.680989i \(0.761550\pi\)
\(6\) 0 0
\(7\) 1.50000 2.59808i 0.566947 0.981981i −0.429919 0.902867i \(-0.641458\pi\)
0.996866 0.0791130i \(-0.0252088\pi\)
\(8\) 0 0
\(9\) −3.00000 −1.00000
\(10\) 0 0
\(11\) −2.50000 + 4.33013i −0.753778 + 1.30558i 0.192201 + 0.981356i \(0.438437\pi\)
−0.945979 + 0.324227i \(0.894896\pi\)
\(12\) 0 0
\(13\) 2.50000 + 4.33013i 0.693375 + 1.20096i 0.970725 + 0.240192i \(0.0772105\pi\)
−0.277350 + 0.960769i \(0.589456\pi\)
\(14\) 0 0
\(15\) 1.50000 0.866025i 0.387298 0.223607i
\(16\) 0 0
\(17\) −2.00000 −0.485071 −0.242536 0.970143i \(-0.577979\pi\)
−0.242536 + 0.970143i \(0.577979\pi\)
\(18\) 0 0
\(19\) −4.00000 −0.917663 −0.458831 0.888523i \(-0.651732\pi\)
−0.458831 + 0.888523i \(0.651732\pi\)
\(20\) 0 0
\(21\) −4.50000 2.59808i −0.981981 0.566947i
\(22\) 0 0
\(23\) 0.500000 + 0.866025i 0.104257 + 0.180579i 0.913434 0.406986i \(-0.133420\pi\)
−0.809177 + 0.587565i \(0.800087\pi\)
\(24\) 0 0
\(25\) 2.00000 3.46410i 0.400000 0.692820i
\(26\) 0 0
\(27\) 5.19615i 1.00000i
\(28\) 0 0
\(29\) 4.50000 7.79423i 0.835629 1.44735i −0.0578882 0.998323i \(-0.518437\pi\)
0.893517 0.449029i \(-0.148230\pi\)
\(30\) 0 0
\(31\) 0.500000 + 0.866025i 0.0898027 + 0.155543i 0.907428 0.420208i \(-0.138043\pi\)
−0.817625 + 0.575751i \(0.804710\pi\)
\(32\) 0 0
\(33\) 7.50000 + 4.33013i 1.30558 + 0.753778i
\(34\) 0 0
\(35\) 3.00000 0.507093
\(36\) 0 0
\(37\) −6.00000 −0.986394 −0.493197 0.869918i \(-0.664172\pi\)
−0.493197 + 0.869918i \(0.664172\pi\)
\(38\) 0 0
\(39\) 7.50000 4.33013i 1.20096 0.693375i
\(40\) 0 0
\(41\) −1.50000 2.59808i −0.234261 0.405751i 0.724797 0.688963i \(-0.241934\pi\)
−0.959058 + 0.283211i \(0.908600\pi\)
\(42\) 0 0
\(43\) −0.500000 + 0.866025i −0.0762493 + 0.132068i −0.901629 0.432511i \(-0.857628\pi\)
0.825380 + 0.564578i \(0.190961\pi\)
\(44\) 0 0
\(45\) −1.50000 2.59808i −0.223607 0.387298i
\(46\) 0 0
\(47\) 1.50000 2.59808i 0.218797 0.378968i −0.735643 0.677369i \(-0.763120\pi\)
0.954441 + 0.298401i \(0.0964533\pi\)
\(48\) 0 0
\(49\) −1.00000 1.73205i −0.142857 0.247436i
\(50\) 0 0
\(51\) 3.46410i 0.485071i
\(52\) 0 0
\(53\) 2.00000 0.274721 0.137361 0.990521i \(-0.456138\pi\)
0.137361 + 0.990521i \(0.456138\pi\)
\(54\) 0 0
\(55\) −5.00000 −0.674200
\(56\) 0 0
\(57\) 6.92820i 0.917663i
\(58\) 0 0
\(59\) −5.50000 9.52628i −0.716039 1.24022i −0.962557 0.271078i \(-0.912620\pi\)
0.246518 0.969138i \(-0.420713\pi\)
\(60\) 0 0
\(61\) −3.50000 + 6.06218i −0.448129 + 0.776182i −0.998264 0.0588933i \(-0.981243\pi\)
0.550135 + 0.835076i \(0.314576\pi\)
\(62\) 0 0
\(63\) −4.50000 + 7.79423i −0.566947 + 0.981981i
\(64\) 0 0
\(65\) −2.50000 + 4.33013i −0.310087 + 0.537086i
\(66\) 0 0
\(67\) 0.500000 + 0.866025i 0.0610847 + 0.105802i 0.894951 0.446165i \(-0.147211\pi\)
−0.833866 + 0.551967i \(0.813877\pi\)
\(68\) 0 0
\(69\) 1.50000 0.866025i 0.180579 0.104257i
\(70\) 0 0
\(71\) 4.00000 0.474713 0.237356 0.971423i \(-0.423719\pi\)
0.237356 + 0.971423i \(0.423719\pi\)
\(72\) 0 0
\(73\) −2.00000 −0.234082 −0.117041 0.993127i \(-0.537341\pi\)
−0.117041 + 0.993127i \(0.537341\pi\)
\(74\) 0 0
\(75\) −6.00000 3.46410i −0.692820 0.400000i
\(76\) 0 0
\(77\) 7.50000 + 12.9904i 0.854704 + 1.48039i
\(78\) 0 0
\(79\) −0.500000 + 0.866025i −0.0562544 + 0.0974355i −0.892781 0.450490i \(-0.851249\pi\)
0.836527 + 0.547926i \(0.184582\pi\)
\(80\) 0 0
\(81\) 9.00000 1.00000
\(82\) 0 0
\(83\) −0.500000 + 0.866025i −0.0548821 + 0.0950586i −0.892161 0.451717i \(-0.850812\pi\)
0.837279 + 0.546776i \(0.184145\pi\)
\(84\) 0 0
\(85\) −1.00000 1.73205i −0.108465 0.187867i
\(86\) 0 0
\(87\) −13.5000 7.79423i −1.44735 0.835629i
\(88\) 0 0
\(89\) −18.0000 −1.90800 −0.953998 0.299813i \(-0.903076\pi\)
−0.953998 + 0.299813i \(0.903076\pi\)
\(90\) 0 0
\(91\) 15.0000 1.57243
\(92\) 0 0
\(93\) 1.50000 0.866025i 0.155543 0.0898027i
\(94\) 0 0
\(95\) −2.00000 3.46410i −0.205196 0.355409i
\(96\) 0 0
\(97\) 6.50000 11.2583i 0.659975 1.14311i −0.320647 0.947199i \(-0.603900\pi\)
0.980622 0.195911i \(-0.0627665\pi\)
\(98\) 0 0
\(99\) 7.50000 12.9904i 0.753778 1.30558i
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 72.2.i.a.25.1 2
3.2 odd 2 216.2.i.a.73.1 2
4.3 odd 2 144.2.i.b.97.1 2
8.3 odd 2 576.2.i.c.385.1 2
8.5 even 2 576.2.i.d.385.1 2
9.2 odd 6 648.2.a.c.1.1 1
9.4 even 3 inner 72.2.i.a.49.1 yes 2
9.5 odd 6 216.2.i.a.145.1 2
9.7 even 3 648.2.a.a.1.1 1
12.11 even 2 432.2.i.a.289.1 2
24.5 odd 2 1728.2.i.h.1153.1 2
24.11 even 2 1728.2.i.g.1153.1 2
36.7 odd 6 1296.2.a.e.1.1 1
36.11 even 6 1296.2.a.i.1.1 1
36.23 even 6 432.2.i.a.145.1 2
36.31 odd 6 144.2.i.b.49.1 2
72.5 odd 6 1728.2.i.h.577.1 2
72.11 even 6 5184.2.a.n.1.1 1
72.13 even 6 576.2.i.d.193.1 2
72.29 odd 6 5184.2.a.i.1.1 1
72.43 odd 6 5184.2.a.x.1.1 1
72.59 even 6 1728.2.i.g.577.1 2
72.61 even 6 5184.2.a.s.1.1 1
72.67 odd 6 576.2.i.c.193.1 2
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
72.2.i.a.25.1 2 1.1 even 1 trivial
72.2.i.a.49.1 yes 2 9.4 even 3 inner
144.2.i.b.49.1 2 36.31 odd 6
144.2.i.b.97.1 2 4.3 odd 2
216.2.i.a.73.1 2 3.2 odd 2
216.2.i.a.145.1 2 9.5 odd 6
432.2.i.a.145.1 2 36.23 even 6
432.2.i.a.289.1 2 12.11 even 2
576.2.i.c.193.1 2 72.67 odd 6
576.2.i.c.385.1 2 8.3 odd 2
576.2.i.d.193.1 2 72.13 even 6
576.2.i.d.385.1 2 8.5 even 2
648.2.a.a.1.1 1 9.7 even 3
648.2.a.c.1.1 1 9.2 odd 6
1296.2.a.e.1.1 1 36.7 odd 6
1296.2.a.i.1.1 1 36.11 even 6
1728.2.i.g.577.1 2 72.59 even 6
1728.2.i.g.1153.1 2 24.11 even 2
1728.2.i.h.577.1 2 72.5 odd 6
1728.2.i.h.1153.1 2 24.5 odd 2
5184.2.a.i.1.1 1 72.29 odd 6
5184.2.a.n.1.1 1 72.11 even 6
5184.2.a.s.1.1 1 72.61 even 6
5184.2.a.x.1.1 1 72.43 odd 6