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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [2700,2,Mod(649,2700)] 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("2700.649"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(2700, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 1])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 2700 = 2^{2} \cdot 3^{3} \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2700.d (of order \(2\), degree \(1\), not minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0, -8] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(31)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(21.5596085457\)
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: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 108)
Sato-Tate group: $\mathrm{U}(1)[D_{2}]$

Embedding invariants

Embedding label 649.2
Root \(1.00000i\) of defining polynomial
Character \(\chi\) \(=\) 2700.649
Dual form 2700.2.d.g.649.1

$q$-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)
 
\(f(q)\) \(=\) \(q+5.00000i q^{7} +7.00000i q^{13} +1.00000 q^{19} -4.00000 q^{31} -1.00000i q^{37} -8.00000i q^{43} -18.0000 q^{49} -13.0000 q^{61} +11.0000i q^{67} -17.0000i q^{73} +13.0000 q^{79} -35.0000 q^{91} +5.00000i q^{97} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 2 q^{19} - 8 q^{31} - 36 q^{49} - 26 q^{61} + 26 q^{79} - 70 q^{91}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2700\mathbb{Z}\right)^\times\).

\(n\) \(1001\) \(1351\) \(2377\)
\(\chi(n)\) \(1\) \(1\) \(-1\)

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 0
\(3\) 0 0
\(4\) 0 0
\(5\) 0 0
\(6\) 0 0
\(7\) 5.00000i 1.88982i 0.327327 + 0.944911i \(0.393852\pi\)
−0.327327 + 0.944911i \(0.606148\pi\)
\(8\) 0 0
\(9\) 0 0
\(10\) 0 0
\(11\) 0 0 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(12\) 0 0
\(13\) 7.00000i 1.94145i 0.240192 + 0.970725i \(0.422790\pi\)
−0.240192 + 0.970725i \(0.577210\pi\)
\(14\) 0 0
\(15\) 0 0
\(16\) 0 0
\(17\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(18\) 0 0
\(19\) 1.00000 0.229416 0.114708 0.993399i \(-0.463407\pi\)
0.114708 + 0.993399i \(0.463407\pi\)
\(20\) 0 0
\(21\) 0 0
\(22\) 0 0
\(23\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(24\) 0 0
\(25\) 0 0
\(26\) 0 0
\(27\) 0 0
\(28\) 0 0
\(29\) 0 0 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(30\) 0 0
\(31\) −4.00000 −0.718421 −0.359211 0.933257i \(-0.616954\pi\)
−0.359211 + 0.933257i \(0.616954\pi\)
\(32\) 0 0
\(33\) 0 0
\(34\) 0 0
\(35\) 0 0
\(36\) 0 0
\(37\) − 1.00000i − 0.164399i −0.996616 0.0821995i \(-0.973806\pi\)
0.996616 0.0821995i \(-0.0261945\pi\)
\(38\) 0 0
\(39\) 0 0
\(40\) 0 0
\(41\) 0 0 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(42\) 0 0
\(43\) − 8.00000i − 1.21999i −0.792406 0.609994i \(-0.791172\pi\)
0.792406 0.609994i \(-0.208828\pi\)
\(44\) 0 0
\(45\) 0 0
\(46\) 0 0
\(47\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(48\) 0 0
\(49\) −18.0000 −2.57143
\(50\) 0 0
\(51\) 0 0
\(52\) 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
\(59\) 0 0 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(60\) 0 0
\(61\) −13.0000 −1.66448 −0.832240 0.554416i \(-0.812942\pi\)
−0.832240 + 0.554416i \(0.812942\pi\)
\(62\) 0 0
\(63\) 0 0
\(64\) 0 0
\(65\) 0 0
\(66\) 0 0
\(67\) 11.0000i 1.34386i 0.740613 + 0.671932i \(0.234535\pi\)
−0.740613 + 0.671932i \(0.765465\pi\)
\(68\) 0 0
\(69\) 0 0
\(70\) 0 0
\(71\) 0 0 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(72\) 0 0
\(73\) − 17.0000i − 1.98970i −0.101361 0.994850i \(-0.532320\pi\)
0.101361 0.994850i \(-0.467680\pi\)
\(74\) 0 0
\(75\) 0 0
\(76\) 0 0
\(77\) 0 0
\(78\) 0 0
\(79\) 13.0000 1.46261 0.731307 0.682048i \(-0.238911\pi\)
0.731307 + 0.682048i \(0.238911\pi\)
\(80\) 0 0
\(81\) 0 0
\(82\) 0 0
\(83\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(84\) 0 0
\(85\) 0 0
\(86\) 0 0
\(87\) 0 0
\(88\) 0 0
\(89\) 0 0 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(90\) 0 0
\(91\) −35.0000 −3.66900
\(92\) 0 0
\(93\) 0 0
\(94\) 0 0
\(95\) 0 0
\(96\) 0 0
\(97\) 5.00000i 0.507673i 0.967247 + 0.253837i \(0.0816925\pi\)
−0.967247 + 0.253837i \(0.918307\pi\)
\(98\) 0 0
\(99\) 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 2700.2.d.g.649.2 2
3.2 odd 2 CM 2700.2.d.g.649.2 2
5.2 odd 4 2700.2.a.b.1.1 1
5.3 odd 4 108.2.a.a.1.1 1
5.4 even 2 inner 2700.2.d.g.649.1 2
15.2 even 4 2700.2.a.b.1.1 1
15.8 even 4 108.2.a.a.1.1 1
15.14 odd 2 inner 2700.2.d.g.649.1 2
20.3 even 4 432.2.a.d.1.1 1
35.13 even 4 5292.2.a.j.1.1 1
40.3 even 4 1728.2.a.m.1.1 1
40.13 odd 4 1728.2.a.p.1.1 1
45.13 odd 12 324.2.e.b.217.1 2
45.23 even 12 324.2.e.b.217.1 2
45.38 even 12 324.2.e.b.109.1 2
45.43 odd 12 324.2.e.b.109.1 2
60.23 odd 4 432.2.a.d.1.1 1
105.83 odd 4 5292.2.a.j.1.1 1
120.53 even 4 1728.2.a.p.1.1 1
120.83 odd 4 1728.2.a.m.1.1 1
180.23 odd 12 1296.2.i.j.865.1 2
180.43 even 12 1296.2.i.j.433.1 2
180.83 odd 12 1296.2.i.j.433.1 2
180.103 even 12 1296.2.i.j.865.1 2
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
108.2.a.a.1.1 1 5.3 odd 4
108.2.a.a.1.1 1 15.8 even 4
324.2.e.b.109.1 2 45.38 even 12
324.2.e.b.109.1 2 45.43 odd 12
324.2.e.b.217.1 2 45.13 odd 12
324.2.e.b.217.1 2 45.23 even 12
432.2.a.d.1.1 1 20.3 even 4
432.2.a.d.1.1 1 60.23 odd 4
1296.2.i.j.433.1 2 180.43 even 12
1296.2.i.j.433.1 2 180.83 odd 12
1296.2.i.j.865.1 2 180.23 odd 12
1296.2.i.j.865.1 2 180.103 even 12
1728.2.a.m.1.1 1 40.3 even 4
1728.2.a.m.1.1 1 120.83 odd 4
1728.2.a.p.1.1 1 40.13 odd 4
1728.2.a.p.1.1 1 120.53 even 4
2700.2.a.b.1.1 1 5.2 odd 4
2700.2.a.b.1.1 1 15.2 even 4
2700.2.d.g.649.1 2 5.4 even 2 inner
2700.2.d.g.649.1 2 15.14 odd 2 inner
2700.2.d.g.649.2 2 1.1 even 1 trivial
2700.2.d.g.649.2 2 3.2 odd 2 CM
5292.2.a.j.1.1 1 35.13 even 4
5292.2.a.j.1.1 1 105.83 odd 4