Properties

Label 2940.2.a.q.1.2
Level $2940$
Weight $2$
Character 2940.1
Self dual yes
Analytic conductor $23.476$
Analytic rank $1$
Dimension $2$
CM no
Inner twists $1$

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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] = [2940,2,Mod(1,2940)] 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("2940.1"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(2940, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 2940 = 2^{2} \cdot 3 \cdot 5 \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2940.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,0,2,0,-2,0,0,0,2,0,-4,0,0] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(13)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(23.4760181943\)
Analytic rank: \(1\)
Dimension: \(2\)
Coefficient field: \(\Q(\zeta_{8})^+\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - 2 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{19}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Fricke sign: \(+1\)
Sato-Tate group: $\mathrm{SU}(2)$

Embedding invariants

Embedding label 1.2
Root \(-1.41421\) of defining polynomial
Character \(\chi\) \(=\) 2940.1

$q$-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)
 
\(f(q)\) \(=\) \(q+1.00000 q^{3} -1.00000 q^{5} +1.00000 q^{9} -2.00000 q^{11} +2.82843 q^{13} -1.00000 q^{15} -6.82843 q^{17} +2.58579 q^{19} -4.58579 q^{23} +1.00000 q^{25} +1.00000 q^{27} -7.65685 q^{29} -4.24264 q^{31} -2.00000 q^{33} +6.48528 q^{37} +2.82843 q^{39} -2.00000 q^{41} -9.65685 q^{43} -1.00000 q^{45} +6.48528 q^{47} -6.82843 q^{51} -7.41421 q^{53} +2.00000 q^{55} +2.58579 q^{57} -2.82843 q^{59} +9.89949 q^{61} -2.82843 q^{65} -1.17157 q^{67} -4.58579 q^{69} +6.48528 q^{71} -12.4853 q^{73} +1.00000 q^{75} -10.0000 q^{79} +1.00000 q^{81} +0.828427 q^{83} +6.82843 q^{85} -7.65685 q^{87} +0.828427 q^{89} -4.24264 q^{93} -2.58579 q^{95} +4.00000 q^{97} -2.00000 q^{99} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 2 q^{3} - 2 q^{5} + 2 q^{9} - 4 q^{11} - 2 q^{15} - 8 q^{17} + 8 q^{19} - 12 q^{23} + 2 q^{25} + 2 q^{27} - 4 q^{29} - 4 q^{33} - 4 q^{37} - 4 q^{41} - 8 q^{43} - 2 q^{45} - 4 q^{47} - 8 q^{51} - 12 q^{53}+ \cdots - 4 q^{99}+O(q^{100}) \) Copy content Toggle raw display

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
\(3\) 1.00000 0.577350
\(4\) 0 0
\(5\) −1.00000 −0.447214
\(6\) 0 0
\(7\) 0 0
\(8\) 0 0
\(9\) 1.00000 0.333333
\(10\) 0 0
\(11\) −2.00000 −0.603023 −0.301511 0.953463i \(-0.597491\pi\)
−0.301511 + 0.953463i \(0.597491\pi\)
\(12\) 0 0
\(13\) 2.82843 0.784465 0.392232 0.919866i \(-0.371703\pi\)
0.392232 + 0.919866i \(0.371703\pi\)
\(14\) 0 0
\(15\) −1.00000 −0.258199
\(16\) 0 0
\(17\) −6.82843 −1.65614 −0.828068 0.560627i \(-0.810560\pi\)
−0.828068 + 0.560627i \(0.810560\pi\)
\(18\) 0 0
\(19\) 2.58579 0.593220 0.296610 0.954999i \(-0.404144\pi\)
0.296610 + 0.954999i \(0.404144\pi\)
\(20\) 0 0
\(21\) 0 0
\(22\) 0 0
\(23\) −4.58579 −0.956203 −0.478101 0.878305i \(-0.658675\pi\)
−0.478101 + 0.878305i \(0.658675\pi\)
\(24\) 0 0
\(25\) 1.00000 0.200000
\(26\) 0 0
\(27\) 1.00000 0.192450
\(28\) 0 0
\(29\) −7.65685 −1.42184 −0.710921 0.703272i \(-0.751722\pi\)
−0.710921 + 0.703272i \(0.751722\pi\)
\(30\) 0 0
\(31\) −4.24264 −0.762001 −0.381000 0.924575i \(-0.624420\pi\)
−0.381000 + 0.924575i \(0.624420\pi\)
\(32\) 0 0
\(33\) −2.00000 −0.348155
\(34\) 0 0
\(35\) 0 0
\(36\) 0 0
\(37\) 6.48528 1.06617 0.533087 0.846061i \(-0.321032\pi\)
0.533087 + 0.846061i \(0.321032\pi\)
\(38\) 0 0
\(39\) 2.82843 0.452911
\(40\) 0 0
\(41\) −2.00000 −0.312348 −0.156174 0.987730i \(-0.549916\pi\)
−0.156174 + 0.987730i \(0.549916\pi\)
\(42\) 0 0
\(43\) −9.65685 −1.47266 −0.736328 0.676625i \(-0.763442\pi\)
−0.736328 + 0.676625i \(0.763442\pi\)
\(44\) 0 0
\(45\) −1.00000 −0.149071
\(46\) 0 0
\(47\) 6.48528 0.945976 0.472988 0.881069i \(-0.343175\pi\)
0.472988 + 0.881069i \(0.343175\pi\)
\(48\) 0 0
\(49\) 0 0
\(50\) 0 0
\(51\) −6.82843 −0.956171
\(52\) 0 0
\(53\) −7.41421 −1.01842 −0.509210 0.860642i \(-0.670062\pi\)
−0.509210 + 0.860642i \(0.670062\pi\)
\(54\) 0 0
\(55\) 2.00000 0.269680
\(56\) 0 0
\(57\) 2.58579 0.342496
\(58\) 0 0
\(59\) −2.82843 −0.368230 −0.184115 0.982905i \(-0.558942\pi\)
−0.184115 + 0.982905i \(0.558942\pi\)
\(60\) 0 0
\(61\) 9.89949 1.26750 0.633750 0.773538i \(-0.281515\pi\)
0.633750 + 0.773538i \(0.281515\pi\)
\(62\) 0 0
\(63\) 0 0
\(64\) 0 0
\(65\) −2.82843 −0.350823
\(66\) 0 0
\(67\) −1.17157 −0.143130 −0.0715652 0.997436i \(-0.522799\pi\)
−0.0715652 + 0.997436i \(0.522799\pi\)
\(68\) 0 0
\(69\) −4.58579 −0.552064
\(70\) 0 0
\(71\) 6.48528 0.769661 0.384831 0.922987i \(-0.374260\pi\)
0.384831 + 0.922987i \(0.374260\pi\)
\(72\) 0 0
\(73\) −12.4853 −1.46129 −0.730646 0.682757i \(-0.760781\pi\)
−0.730646 + 0.682757i \(0.760781\pi\)
\(74\) 0 0
\(75\) 1.00000 0.115470
\(76\) 0 0
\(77\) 0 0
\(78\) 0 0
\(79\) −10.0000 −1.12509 −0.562544 0.826767i \(-0.690177\pi\)
−0.562544 + 0.826767i \(0.690177\pi\)
\(80\) 0 0
\(81\) 1.00000 0.111111
\(82\) 0 0
\(83\) 0.828427 0.0909317 0.0454658 0.998966i \(-0.485523\pi\)
0.0454658 + 0.998966i \(0.485523\pi\)
\(84\) 0 0
\(85\) 6.82843 0.740647
\(86\) 0 0
\(87\) −7.65685 −0.820901
\(88\) 0 0
\(89\) 0.828427 0.0878131 0.0439065 0.999036i \(-0.486020\pi\)
0.0439065 + 0.999036i \(0.486020\pi\)
\(90\) 0 0
\(91\) 0 0
\(92\) 0 0
\(93\) −4.24264 −0.439941
\(94\) 0 0
\(95\) −2.58579 −0.265296
\(96\) 0 0
\(97\) 4.00000 0.406138 0.203069 0.979164i \(-0.434908\pi\)
0.203069 + 0.979164i \(0.434908\pi\)
\(98\) 0 0
\(99\) −2.00000 −0.201008
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 2940.2.a.q.1.2 yes 2
3.2 odd 2 8820.2.a.bm.1.2 2
7.2 even 3 2940.2.q.p.361.2 4
7.3 odd 6 2940.2.q.r.961.1 4
7.4 even 3 2940.2.q.p.961.2 4
7.5 odd 6 2940.2.q.r.361.1 4
7.6 odd 2 2940.2.a.o.1.1 2
21.20 even 2 8820.2.a.bh.1.1 2
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
2940.2.a.o.1.1 2 7.6 odd 2
2940.2.a.q.1.2 yes 2 1.1 even 1 trivial
2940.2.q.p.361.2 4 7.2 even 3
2940.2.q.p.961.2 4 7.4 even 3
2940.2.q.r.361.1 4 7.5 odd 6
2940.2.q.r.961.1 4 7.3 odd 6
8820.2.a.bh.1.1 2 21.20 even 2
8820.2.a.bm.1.2 2 3.2 odd 2