Properties

Label 2940.2.a.q.1.1
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 1.1
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)
 
\(f(q)\) \(=\) \(q+1.00000 q^{3} -1.00000 q^{5} +1.00000 q^{9} -2.00000 q^{11} -2.82843 q^{13} -1.00000 q^{15} -1.17157 q^{17} +5.41421 q^{19} -7.41421 q^{23} +1.00000 q^{25} +1.00000 q^{27} +3.65685 q^{29} +4.24264 q^{31} -2.00000 q^{33} -10.4853 q^{37} -2.82843 q^{39} -2.00000 q^{41} +1.65685 q^{43} -1.00000 q^{45} -10.4853 q^{47} -1.17157 q^{51} -4.58579 q^{53} +2.00000 q^{55} +5.41421 q^{57} +2.82843 q^{59} -9.89949 q^{61} +2.82843 q^{65} -6.82843 q^{67} -7.41421 q^{69} -10.4853 q^{71} +4.48528 q^{73} +1.00000 q^{75} -10.0000 q^{79} +1.00000 q^{81} -4.82843 q^{83} +1.17157 q^{85} +3.65685 q^{87} -4.82843 q^{89} +4.24264 q^{93} -5.41421 q^{95} +4.00000 q^{97} -2.00000 q^{99} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 2 q^{3} - 2 q^{5} + 2 q^{9} - 4 q^{11} - 2 q^{15} - 8 q^{17} + 8 q^{19} - 12 q^{23} + 2 q^{25} + 2 q^{27} - 4 q^{29} - 4 q^{33} - 4 q^{37} - 4 q^{41} - 8 q^{43} - 2 q^{45} - 4 q^{47} - 8 q^{51} - 12 q^{53}+ \cdots - 4 q^{99}+O(q^{100}) \) 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 \(-0.628297\pi\)
−0.392232 + 0.919866i \(0.628297\pi\)
\(14\) 0 0
\(15\) −1.00000 −0.258199
\(16\) 0 0
\(17\) −1.17157 −0.284148 −0.142074 0.989856i \(-0.545377\pi\)
−0.142074 + 0.989856i \(0.545377\pi\)
\(18\) 0 0
\(19\) 5.41421 1.24211 0.621053 0.783769i \(-0.286705\pi\)
0.621053 + 0.783769i \(0.286705\pi\)
\(20\) 0 0
\(21\) 0 0
\(22\) 0 0
\(23\) −7.41421 −1.54597 −0.772985 0.634424i \(-0.781237\pi\)
−0.772985 + 0.634424i \(0.781237\pi\)
\(24\) 0 0
\(25\) 1.00000 0.200000
\(26\) 0 0
\(27\) 1.00000 0.192450
\(28\) 0 0
\(29\) 3.65685 0.679061 0.339530 0.940595i \(-0.389732\pi\)
0.339530 + 0.940595i \(0.389732\pi\)
\(30\) 0 0
\(31\) 4.24264 0.762001 0.381000 0.924575i \(-0.375580\pi\)
0.381000 + 0.924575i \(0.375580\pi\)
\(32\) 0 0
\(33\) −2.00000 −0.348155
\(34\) 0 0
\(35\) 0 0
\(36\) 0 0
\(37\) −10.4853 −1.72377 −0.861885 0.507104i \(-0.830716\pi\)
−0.861885 + 0.507104i \(0.830716\pi\)
\(38\) 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
\(43\) 1.65685 0.252668 0.126334 0.991988i \(-0.459679\pi\)
0.126334 + 0.991988i \(0.459679\pi\)
\(44\) 0 0
\(45\) −1.00000 −0.149071
\(46\) 0 0
\(47\) −10.4853 −1.52944 −0.764718 0.644365i \(-0.777122\pi\)
−0.764718 + 0.644365i \(0.777122\pi\)
\(48\) 0 0
\(49\) 0 0
\(50\) 0 0
\(51\) −1.17157 −0.164053
\(52\) 0 0
\(53\) −4.58579 −0.629906 −0.314953 0.949107i \(-0.601989\pi\)
−0.314953 + 0.949107i \(0.601989\pi\)
\(54\) 0 0
\(55\) 2.00000 0.269680
\(56\) 0 0
\(57\) 5.41421 0.717130
\(58\) 0 0
\(59\) 2.82843 0.368230 0.184115 0.982905i \(-0.441058\pi\)
0.184115 + 0.982905i \(0.441058\pi\)
\(60\) 0 0
\(61\) −9.89949 −1.26750 −0.633750 0.773538i \(-0.718485\pi\)
−0.633750 + 0.773538i \(0.718485\pi\)
\(62\) 0 0
\(63\) 0 0
\(64\) 0 0
\(65\) 2.82843 0.350823
\(66\) 0 0
\(67\) −6.82843 −0.834225 −0.417113 0.908855i \(-0.636958\pi\)
−0.417113 + 0.908855i \(0.636958\pi\)
\(68\) 0 0
\(69\) −7.41421 −0.892566
\(70\) 0 0
\(71\) −10.4853 −1.24437 −0.622187 0.782869i \(-0.713756\pi\)
−0.622187 + 0.782869i \(0.713756\pi\)
\(72\) 0 0
\(73\) 4.48528 0.524962 0.262481 0.964937i \(-0.415459\pi\)
0.262481 + 0.964937i \(0.415459\pi\)
\(74\) 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
\(83\) −4.82843 −0.529989 −0.264994 0.964250i \(-0.585370\pi\)
−0.264994 + 0.964250i \(0.585370\pi\)
\(84\) 0 0
\(85\) 1.17157 0.127075
\(86\) 0 0
\(87\) 3.65685 0.392056
\(88\) 0 0
\(89\) −4.82843 −0.511812 −0.255906 0.966702i \(-0.582374\pi\)
−0.255906 + 0.966702i \(0.582374\pi\)
\(90\) 0 0
\(91\) 0 0
\(92\) 0 0
\(93\) 4.24264 0.439941
\(94\) 0 0
\(95\) −5.41421 −0.555487
\(96\) 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.1.1 yes 2
3.2 odd 2 8820.2.a.bm.1.1 2
7.2 even 3 2940.2.q.p.361.1 4
7.3 odd 6 2940.2.q.r.961.2 4
7.4 even 3 2940.2.q.p.961.1 4
7.5 odd 6 2940.2.q.r.361.2 4
7.6 odd 2 2940.2.a.o.1.2 2
21.20 even 2 8820.2.a.bh.1.2 2
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
2940.2.a.o.1.2 2 7.6 odd 2
2940.2.a.q.1.1 yes 2 1.1 even 1 trivial
2940.2.q.p.361.1 4 7.2 even 3
2940.2.q.p.961.1 4 7.4 even 3
2940.2.q.r.361.2 4 7.5 odd 6
2940.2.q.r.961.2 4 7.3 odd 6
8820.2.a.bh.1.2 2 21.20 even 2
8820.2.a.bm.1.1 2 3.2 odd 2