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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [891,2,Mod(298,891)] 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("891.298"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(891, base_ring=CyclotomicField(6)) chi = DirichletCharacter(H, H._module([4, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 891 = 3^{4} \cdot 11 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 891.e (of order \(3\), degree \(2\), not minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,-1,0,1,-4,0,2] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(7)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(7.11467082010\)
Analytic rank: \(1\)
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: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 99)
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

Embedding invariants

Embedding label 298.1
Root \(0.500000 + 0.866025i\) of defining polynomial
Character \(\chi\) \(=\) 891.298
Dual form 891.2.e.c.595.1

$q$-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)
 
\(f(q)\) \(=\) \(q+(-0.500000 + 0.866025i) q^{2} +(0.500000 + 0.866025i) q^{4} +(-2.00000 - 3.46410i) q^{5} +(1.00000 - 1.73205i) q^{7} -3.00000 q^{8} +4.00000 q^{10} +(-0.500000 + 0.866025i) q^{11} +(1.00000 + 1.73205i) q^{13} +(1.00000 + 1.73205i) q^{14} +(0.500000 - 0.866025i) q^{16} -2.00000 q^{17} -6.00000 q^{19} +(2.00000 - 3.46410i) q^{20} +(-0.500000 - 0.866025i) q^{22} +(2.00000 + 3.46410i) q^{23} +(-5.50000 + 9.52628i) q^{25} -2.00000 q^{26} +2.00000 q^{28} +(-3.00000 + 5.19615i) q^{29} +(-2.00000 - 3.46410i) q^{31} +(-2.50000 - 4.33013i) q^{32} +(1.00000 - 1.73205i) q^{34} -8.00000 q^{35} -6.00000 q^{37} +(3.00000 - 5.19615i) q^{38} +(6.00000 + 10.3923i) q^{40} +(-5.00000 - 8.66025i) q^{41} +(-3.00000 + 5.19615i) q^{43} -1.00000 q^{44} -4.00000 q^{46} +(-4.00000 + 6.92820i) q^{47} +(1.50000 + 2.59808i) q^{49} +(-5.50000 - 9.52628i) q^{50} +(-1.00000 + 1.73205i) q^{52} +4.00000 q^{55} +(-3.00000 + 5.19615i) q^{56} +(-3.00000 - 5.19615i) q^{58} +(2.00000 + 3.46410i) q^{59} +(3.00000 - 5.19615i) q^{61} +4.00000 q^{62} +7.00000 q^{64} +(4.00000 - 6.92820i) q^{65} +(-4.00000 - 6.92820i) q^{67} +(-1.00000 - 1.73205i) q^{68} +(4.00000 - 6.92820i) q^{70} -2.00000 q^{73} +(3.00000 - 5.19615i) q^{74} +(-3.00000 - 5.19615i) q^{76} +(1.00000 + 1.73205i) q^{77} +(5.00000 - 8.66025i) q^{79} -4.00000 q^{80} +10.0000 q^{82} +(6.00000 - 10.3923i) q^{83} +(4.00000 + 6.92820i) q^{85} +(-3.00000 - 5.19615i) q^{86} +(1.50000 - 2.59808i) q^{88} +4.00000 q^{91} +(-2.00000 + 3.46410i) q^{92} +(-4.00000 - 6.92820i) q^{94} +(12.0000 + 20.7846i) q^{95} +(-1.00000 + 1.73205i) q^{97} -3.00000 q^{98} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - q^{2} + q^{4} - 4 q^{5} + 2 q^{7} - 6 q^{8} + 8 q^{10} - q^{11} + 2 q^{13} + 2 q^{14} + q^{16} - 4 q^{17} - 12 q^{19} + 4 q^{20} - q^{22} + 4 q^{23} - 11 q^{25} - 4 q^{26} + 4 q^{28} - 6 q^{29}+ \cdots - 6 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/891\mathbb{Z}\right)^\times\).

\(n\) \(244\) \(650\)
\(\chi(n)\) \(1\) \(e\left(\frac{2}{3}\right)\)

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:
\(n\) \(a_n\) \(a_n / n^{(k-1)/2}\) \( \alpha_n \) \( \theta_n \)
\(p\) \(a_p\) \(a_p / p^{(k-1)/2}\) \( \alpha_p\) \( \theta_p \)
\(2\) −0.500000 + 0.866025i −0.353553 + 0.612372i −0.986869 0.161521i \(-0.948360\pi\)
0.633316 + 0.773893i \(0.281693\pi\)
\(3\) 0 0
\(4\) 0.500000 + 0.866025i 0.250000 + 0.433013i
\(5\) −2.00000 3.46410i −0.894427 1.54919i −0.834512 0.550990i \(-0.814250\pi\)
−0.0599153 0.998203i \(-0.519083\pi\)
\(6\) 0 0
\(7\) 1.00000 1.73205i 0.377964 0.654654i −0.612801 0.790237i \(-0.709957\pi\)
0.990766 + 0.135583i \(0.0432908\pi\)
\(8\) −3.00000 −1.06066
\(9\) 0 0
\(10\) 4.00000 1.26491
\(11\) −0.500000 + 0.866025i −0.150756 + 0.261116i
\(12\) 0 0
\(13\) 1.00000 + 1.73205i 0.277350 + 0.480384i 0.970725 0.240192i \(-0.0772105\pi\)
−0.693375 + 0.720577i \(0.743877\pi\)
\(14\) 1.00000 + 1.73205i 0.267261 + 0.462910i
\(15\) 0 0
\(16\) 0.500000 0.866025i 0.125000 0.216506i
\(17\) −2.00000 −0.485071 −0.242536 0.970143i \(-0.577979\pi\)
−0.242536 + 0.970143i \(0.577979\pi\)
\(18\) 0 0
\(19\) −6.00000 −1.37649 −0.688247 0.725476i \(-0.741620\pi\)
−0.688247 + 0.725476i \(0.741620\pi\)
\(20\) 2.00000 3.46410i 0.447214 0.774597i
\(21\) 0 0
\(22\) −0.500000 0.866025i −0.106600 0.184637i
\(23\) 2.00000 + 3.46410i 0.417029 + 0.722315i 0.995639 0.0932891i \(-0.0297381\pi\)
−0.578610 + 0.815604i \(0.696405\pi\)
\(24\) 0 0
\(25\) −5.50000 + 9.52628i −1.10000 + 1.90526i
\(26\) −2.00000 −0.392232
\(27\) 0 0
\(28\) 2.00000 0.377964
\(29\) −3.00000 + 5.19615i −0.557086 + 0.964901i 0.440652 + 0.897678i \(0.354747\pi\)
−0.997738 + 0.0672232i \(0.978586\pi\)
\(30\) 0 0
\(31\) −2.00000 3.46410i −0.359211 0.622171i 0.628619 0.777714i \(-0.283621\pi\)
−0.987829 + 0.155543i \(0.950287\pi\)
\(32\) −2.50000 4.33013i −0.441942 0.765466i
\(33\) 0 0
\(34\) 1.00000 1.73205i 0.171499 0.297044i
\(35\) −8.00000 −1.35225
\(36\) 0 0
\(37\) −6.00000 −0.986394 −0.493197 0.869918i \(-0.664172\pi\)
−0.493197 + 0.869918i \(0.664172\pi\)
\(38\) 3.00000 5.19615i 0.486664 0.842927i
\(39\) 0 0
\(40\) 6.00000 + 10.3923i 0.948683 + 1.64317i
\(41\) −5.00000 8.66025i −0.780869 1.35250i −0.931436 0.363905i \(-0.881443\pi\)
0.150567 0.988600i \(-0.451890\pi\)
\(42\) 0 0
\(43\) −3.00000 + 5.19615i −0.457496 + 0.792406i −0.998828 0.0484030i \(-0.984587\pi\)
0.541332 + 0.840809i \(0.317920\pi\)
\(44\) −1.00000 −0.150756
\(45\) 0 0
\(46\) −4.00000 −0.589768
\(47\) −4.00000 + 6.92820i −0.583460 + 1.01058i 0.411606 + 0.911362i \(0.364968\pi\)
−0.995066 + 0.0992202i \(0.968365\pi\)
\(48\) 0 0
\(49\) 1.50000 + 2.59808i 0.214286 + 0.371154i
\(50\) −5.50000 9.52628i −0.777817 1.34722i
\(51\) 0 0
\(52\) −1.00000 + 1.73205i −0.138675 + 0.240192i
\(53\) 0 0 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(54\) 0 0
\(55\) 4.00000 0.539360
\(56\) −3.00000 + 5.19615i −0.400892 + 0.694365i
\(57\) 0 0
\(58\) −3.00000 5.19615i −0.393919 0.682288i
\(59\) 2.00000 + 3.46410i 0.260378 + 0.450988i 0.966342 0.257260i \(-0.0828195\pi\)
−0.705965 + 0.708247i \(0.749486\pi\)
\(60\) 0 0
\(61\) 3.00000 5.19615i 0.384111 0.665299i −0.607535 0.794293i \(-0.707841\pi\)
0.991645 + 0.128994i \(0.0411748\pi\)
\(62\) 4.00000 0.508001
\(63\) 0 0
\(64\) 7.00000 0.875000
\(65\) 4.00000 6.92820i 0.496139 0.859338i
\(66\) 0 0
\(67\) −4.00000 6.92820i −0.488678 0.846415i 0.511237 0.859440i \(-0.329187\pi\)
−0.999915 + 0.0130248i \(0.995854\pi\)
\(68\) −1.00000 1.73205i −0.121268 0.210042i
\(69\) 0 0
\(70\) 4.00000 6.92820i 0.478091 0.828079i
\(71\) 0 0 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(72\) 0 0
\(73\) −2.00000 −0.234082 −0.117041 0.993127i \(-0.537341\pi\)
−0.117041 + 0.993127i \(0.537341\pi\)
\(74\) 3.00000 5.19615i 0.348743 0.604040i
\(75\) 0 0
\(76\) −3.00000 5.19615i −0.344124 0.596040i
\(77\) 1.00000 + 1.73205i 0.113961 + 0.197386i
\(78\) 0 0
\(79\) 5.00000 8.66025i 0.562544 0.974355i −0.434730 0.900561i \(-0.643156\pi\)
0.997274 0.0737937i \(-0.0235106\pi\)
\(80\) −4.00000 −0.447214
\(81\) 0 0
\(82\) 10.0000 1.10432
\(83\) 6.00000 10.3923i 0.658586 1.14070i −0.322396 0.946605i \(-0.604488\pi\)
0.980982 0.194099i \(-0.0621783\pi\)
\(84\) 0 0
\(85\) 4.00000 + 6.92820i 0.433861 + 0.751469i
\(86\) −3.00000 5.19615i −0.323498 0.560316i
\(87\) 0 0
\(88\) 1.50000 2.59808i 0.159901 0.276956i
\(89\) 0 0 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(90\) 0 0
\(91\) 4.00000 0.419314
\(92\) −2.00000 + 3.46410i −0.208514 + 0.361158i
\(93\) 0 0
\(94\) −4.00000 6.92820i −0.412568 0.714590i
\(95\) 12.0000 + 20.7846i 1.23117 + 2.13246i
\(96\) 0 0
\(97\) −1.00000 + 1.73205i −0.101535 + 0.175863i −0.912317 0.409484i \(-0.865709\pi\)
0.810782 + 0.585348i \(0.199042\pi\)
\(98\) −3.00000 −0.303046
\(99\) 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 891.2.e.c.298.1 2
3.2 odd 2 891.2.e.j.298.1 2
9.2 odd 6 99.2.a.a.1.1 1
9.4 even 3 inner 891.2.e.c.595.1 2
9.5 odd 6 891.2.e.j.595.1 2
9.7 even 3 99.2.a.c.1.1 yes 1
36.7 odd 6 1584.2.a.r.1.1 1
36.11 even 6 1584.2.a.b.1.1 1
45.2 even 12 2475.2.c.b.199.1 2
45.7 odd 12 2475.2.c.g.199.2 2
45.29 odd 6 2475.2.a.j.1.1 1
45.34 even 6 2475.2.a.c.1.1 1
45.38 even 12 2475.2.c.b.199.2 2
45.43 odd 12 2475.2.c.g.199.1 2
63.20 even 6 4851.2.a.g.1.1 1
63.34 odd 6 4851.2.a.o.1.1 1
72.11 even 6 6336.2.a.cm.1.1 1
72.29 odd 6 6336.2.a.cl.1.1 1
72.43 odd 6 6336.2.a.f.1.1 1
72.61 even 6 6336.2.a.b.1.1 1
99.43 odd 6 1089.2.a.d.1.1 1
99.65 even 6 1089.2.a.h.1.1 1
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
99.2.a.a.1.1 1 9.2 odd 6
99.2.a.c.1.1 yes 1 9.7 even 3
891.2.e.c.298.1 2 1.1 even 1 trivial
891.2.e.c.595.1 2 9.4 even 3 inner
891.2.e.j.298.1 2 3.2 odd 2
891.2.e.j.595.1 2 9.5 odd 6
1089.2.a.d.1.1 1 99.43 odd 6
1089.2.a.h.1.1 1 99.65 even 6
1584.2.a.b.1.1 1 36.11 even 6
1584.2.a.r.1.1 1 36.7 odd 6
2475.2.a.c.1.1 1 45.34 even 6
2475.2.a.j.1.1 1 45.29 odd 6
2475.2.c.b.199.1 2 45.2 even 12
2475.2.c.b.199.2 2 45.38 even 12
2475.2.c.g.199.1 2 45.43 odd 12
2475.2.c.g.199.2 2 45.7 odd 12
4851.2.a.g.1.1 1 63.20 even 6
4851.2.a.o.1.1 1 63.34 odd 6
6336.2.a.b.1.1 1 72.61 even 6
6336.2.a.f.1.1 1 72.43 odd 6
6336.2.a.cl.1.1 1 72.29 odd 6
6336.2.a.cm.1.1 1 72.11 even 6