Properties

Label 819.2.j.c.352.2
Level $819$
Weight $2$
Character 819.352
Analytic conductor $6.540$
Analytic rank $1$
Dimension $4$
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] = [819,2,Mod(235,819)] 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("819.235"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(819, base_ring=CyclotomicField(6)) chi = DirichletCharacter(H, H._module([0, 4, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 819 = 3^{2} \cdot 7 \cdot 13 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 819.j (of order \(3\), degree \(2\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [4,-3] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(2)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(6.53974792554\)
Analytic rank: \(1\)
Dimension: \(4\)
Relative dimension: \(2\) over \(\Q(\zeta_{3})\)
Coefficient field: \(\Q(\sqrt{-3}, \sqrt{5})\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} - x^{3} + 2x^{2} + x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 91)
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

Embedding invariants

Embedding label 352.2
Root \(-0.309017 + 0.535233i\) of defining polynomial
Character \(\chi\) \(=\) 819.352
Dual form 819.2.j.c.235.2

$q$-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)
 
\(f(q)\) \(=\) \(q+(-0.190983 + 0.330792i) q^{2} +(0.927051 + 1.60570i) q^{4} +(-1.11803 + 1.93649i) q^{5} +(-2.00000 - 1.73205i) q^{7} -1.47214 q^{8} +(-0.427051 - 0.739674i) q^{10} +(-1.50000 - 2.59808i) q^{11} -1.00000 q^{13} +(0.954915 - 0.330792i) q^{14} +(-1.57295 + 2.72443i) q^{16} +(-3.73607 - 6.47106i) q^{17} +(-1.50000 + 2.59808i) q^{19} -4.14590 q^{20} +1.14590 q^{22} +(-1.88197 + 3.25966i) q^{23} +(0.190983 - 0.330792i) q^{26} +(0.927051 - 4.81710i) q^{28} +4.47214 q^{29} +(-2.50000 - 4.33013i) q^{31} +(-2.07295 - 3.59045i) q^{32} +2.85410 q^{34} +(5.59017 - 1.93649i) q^{35} +(4.35410 - 7.54153i) q^{37} +(-0.572949 - 0.992377i) q^{38} +(1.64590 - 2.85078i) q^{40} -4.47214 q^{41} -8.00000 q^{43} +(2.78115 - 4.81710i) q^{44} +(-0.718847 - 1.24508i) q^{46} +(0.736068 - 1.27491i) q^{47} +(1.00000 + 6.92820i) q^{49} +(-0.927051 - 1.60570i) q^{52} +(0.736068 + 1.27491i) q^{53} +6.70820 q^{55} +(2.94427 + 2.54981i) q^{56} +(-0.854102 + 1.47935i) q^{58} +(3.73607 + 6.47106i) q^{59} +(-1.50000 + 2.59808i) q^{61} +1.90983 q^{62} -4.70820 q^{64} +(1.11803 - 1.93649i) q^{65} +(1.50000 + 2.59808i) q^{67} +(6.92705 - 11.9980i) q^{68} +(-0.427051 + 2.21902i) q^{70} -8.94427 q^{71} +(-5.35410 - 9.27358i) q^{73} +(1.66312 + 2.88061i) q^{74} -5.56231 q^{76} +(-1.50000 + 7.79423i) q^{77} +(-5.35410 + 9.27358i) q^{79} +(-3.51722 - 6.09201i) q^{80} +(0.854102 - 1.47935i) q^{82} +16.7082 q^{85} +(1.52786 - 2.64634i) q^{86} +(2.20820 + 3.82472i) q^{88} +(-1.11803 + 1.93649i) q^{89} +(2.00000 + 1.73205i) q^{91} -6.97871 q^{92} +(0.281153 + 0.486971i) q^{94} +(-3.35410 - 5.80948i) q^{95} -17.4164 q^{97} +(-2.48278 - 0.992377i) q^{98} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q - 3 q^{2} - 3 q^{4} - 8 q^{7} + 12 q^{8} + 5 q^{10} - 6 q^{11} - 4 q^{13} + 15 q^{14} - 13 q^{16} - 6 q^{17} - 6 q^{19} - 30 q^{20} + 18 q^{22} - 12 q^{23} + 3 q^{26} - 3 q^{28} - 10 q^{31} - 15 q^{32}+ \cdots - 39 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/819\mathbb{Z}\right)^\times\).

\(n\) \(92\) \(379\) \(703\)
\(\chi(n)\) \(1\) \(1\) \(e\left(\frac{1}{3}\right)\)

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:
\(n\) \(a_n\) \(a_n / n^{(k-1)/2}\) \( \alpha_n \) \( \theta_n \)
\(p\) \(a_p\) \(a_p / p^{(k-1)/2}\) \( \alpha_p\) \( \theta_p \)
\(2\) −0.190983 + 0.330792i −0.135045 + 0.233905i −0.925615 0.378467i \(-0.876451\pi\)
0.790569 + 0.612372i \(0.209785\pi\)
\(3\) 0 0
\(4\) 0.927051 + 1.60570i 0.463525 + 0.802850i
\(5\) −1.11803 + 1.93649i −0.500000 + 0.866025i 0.500000 + 0.866025i \(0.333333\pi\)
−1.00000 \(\pi\)
\(6\) 0 0
\(7\) −2.00000 1.73205i −0.755929 0.654654i
\(8\) −1.47214 −0.520479
\(9\) 0 0
\(10\) −0.427051 0.739674i −0.135045 0.233905i
\(11\) −1.50000 2.59808i −0.452267 0.783349i 0.546259 0.837616i \(-0.316051\pi\)
−0.998526 + 0.0542666i \(0.982718\pi\)
\(12\) 0 0
\(13\) −1.00000 −0.277350
\(14\) 0.954915 0.330792i 0.255212 0.0884080i
\(15\) 0 0
\(16\) −1.57295 + 2.72443i −0.393237 + 0.681107i
\(17\) −3.73607 6.47106i −0.906130 1.56946i −0.819394 0.573231i \(-0.805690\pi\)
−0.0867359 0.996231i \(-0.527644\pi\)
\(18\) 0 0
\(19\) −1.50000 + 2.59808i −0.344124 + 0.596040i −0.985194 0.171442i \(-0.945157\pi\)
0.641071 + 0.767482i \(0.278491\pi\)
\(20\) −4.14590 −0.927051
\(21\) 0 0
\(22\) 1.14590 0.244306
\(23\) −1.88197 + 3.25966i −0.392417 + 0.679686i −0.992768 0.120051i \(-0.961694\pi\)
0.600351 + 0.799737i \(0.295028\pi\)
\(24\) 0 0
\(25\) 0 0
\(26\) 0.190983 0.330792i 0.0374548 0.0648737i
\(27\) 0 0
\(28\) 0.927051 4.81710i 0.175196 0.910346i
\(29\) 4.47214 0.830455 0.415227 0.909718i \(-0.363702\pi\)
0.415227 + 0.909718i \(0.363702\pi\)
\(30\) 0 0
\(31\) −2.50000 4.33013i −0.449013 0.777714i 0.549309 0.835619i \(-0.314891\pi\)
−0.998322 + 0.0579057i \(0.981558\pi\)
\(32\) −2.07295 3.59045i −0.366449 0.634708i
\(33\) 0 0
\(34\) 2.85410 0.489474
\(35\) 5.59017 1.93649i 0.944911 0.327327i
\(36\) 0 0
\(37\) 4.35410 7.54153i 0.715810 1.23982i −0.246836 0.969057i \(-0.579391\pi\)
0.962646 0.270762i \(-0.0872757\pi\)
\(38\) −0.572949 0.992377i −0.0929446 0.160985i
\(39\) 0 0
\(40\) 1.64590 2.85078i 0.260239 0.450748i
\(41\) −4.47214 −0.698430 −0.349215 0.937043i \(-0.613552\pi\)
−0.349215 + 0.937043i \(0.613552\pi\)
\(42\) 0 0
\(43\) −8.00000 −1.21999 −0.609994 0.792406i \(-0.708828\pi\)
−0.609994 + 0.792406i \(0.708828\pi\)
\(44\) 2.78115 4.81710i 0.419275 0.726205i
\(45\) 0 0
\(46\) −0.718847 1.24508i −0.105988 0.183577i
\(47\) 0.736068 1.27491i 0.107367 0.185964i −0.807336 0.590092i \(-0.799091\pi\)
0.914703 + 0.404128i \(0.132425\pi\)
\(48\) 0 0
\(49\) 1.00000 + 6.92820i 0.142857 + 0.989743i
\(50\) 0 0
\(51\) 0 0
\(52\) −0.927051 1.60570i −0.128559 0.222670i
\(53\) 0.736068 + 1.27491i 0.101107 + 0.175122i 0.912141 0.409877i \(-0.134428\pi\)
−0.811034 + 0.584999i \(0.801095\pi\)
\(54\) 0 0
\(55\) 6.70820 0.904534
\(56\) 2.94427 + 2.54981i 0.393445 + 0.340733i
\(57\) 0 0
\(58\) −0.854102 + 1.47935i −0.112149 + 0.194248i
\(59\) 3.73607 + 6.47106i 0.486395 + 0.842460i 0.999878 0.0156395i \(-0.00497842\pi\)
−0.513483 + 0.858100i \(0.671645\pi\)
\(60\) 0 0
\(61\) −1.50000 + 2.59808i −0.192055 + 0.332650i −0.945931 0.324367i \(-0.894849\pi\)
0.753876 + 0.657017i \(0.228182\pi\)
\(62\) 1.90983 0.242549
\(63\) 0 0
\(64\) −4.70820 −0.588525
\(65\) 1.11803 1.93649i 0.138675 0.240192i
\(66\) 0 0
\(67\) 1.50000 + 2.59808i 0.183254 + 0.317406i 0.942987 0.332830i \(-0.108004\pi\)
−0.759733 + 0.650236i \(0.774670\pi\)
\(68\) 6.92705 11.9980i 0.840028 1.45497i
\(69\) 0 0
\(70\) −0.427051 + 2.21902i −0.0510424 + 0.265224i
\(71\) −8.94427 −1.06149 −0.530745 0.847532i \(-0.678088\pi\)
−0.530745 + 0.847532i \(0.678088\pi\)
\(72\) 0 0
\(73\) −5.35410 9.27358i −0.626650 1.08539i −0.988219 0.153045i \(-0.951092\pi\)
0.361569 0.932345i \(-0.382241\pi\)
\(74\) 1.66312 + 2.88061i 0.193334 + 0.334864i
\(75\) 0 0
\(76\) −5.56231 −0.638040
\(77\) −1.50000 + 7.79423i −0.170941 + 0.888235i
\(78\) 0 0
\(79\) −5.35410 + 9.27358i −0.602384 + 1.04336i 0.390076 + 0.920783i \(0.372449\pi\)
−0.992459 + 0.122576i \(0.960884\pi\)
\(80\) −3.51722 6.09201i −0.393237 0.681107i
\(81\) 0 0
\(82\) 0.854102 1.47935i 0.0943198 0.163367i
\(83\) 0 0 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(84\) 0 0
\(85\) 16.7082 1.81226
\(86\) 1.52786 2.64634i 0.164754 0.285362i
\(87\) 0 0
\(88\) 2.20820 + 3.82472i 0.235395 + 0.407717i
\(89\) −1.11803 + 1.93649i −0.118511 + 0.205268i −0.919178 0.393842i \(-0.871146\pi\)
0.800667 + 0.599110i \(0.204479\pi\)
\(90\) 0 0
\(91\) 2.00000 + 1.73205i 0.209657 + 0.181568i
\(92\) −6.97871 −0.727581
\(93\) 0 0
\(94\) 0.281153 + 0.486971i 0.0289987 + 0.0502272i
\(95\) −3.35410 5.80948i −0.344124 0.596040i
\(96\) 0 0
\(97\) −17.4164 −1.76837 −0.884184 0.467139i \(-0.845285\pi\)
−0.884184 + 0.467139i \(0.845285\pi\)
\(98\) −2.48278 0.992377i −0.250799 0.100245i
\(99\) 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 819.2.j.c.352.2 4
3.2 odd 2 91.2.e.b.79.1 yes 4
7.2 even 3 5733.2.a.v.1.1 2
7.4 even 3 inner 819.2.j.c.235.2 4
7.5 odd 6 5733.2.a.w.1.1 2
12.11 even 2 1456.2.r.j.625.2 4
21.2 odd 6 637.2.a.f.1.2 2
21.5 even 6 637.2.a.e.1.2 2
21.11 odd 6 91.2.e.b.53.1 4
21.17 even 6 637.2.e.h.508.1 4
21.20 even 2 637.2.e.h.79.1 4
39.38 odd 2 1183.2.e.d.170.2 4
84.11 even 6 1456.2.r.j.417.2 4
273.116 odd 6 1183.2.e.d.508.2 4
273.194 even 6 8281.2.a.ba.1.1 2
273.233 odd 6 8281.2.a.z.1.1 2
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
91.2.e.b.53.1 4 21.11 odd 6
91.2.e.b.79.1 yes 4 3.2 odd 2
637.2.a.e.1.2 2 21.5 even 6
637.2.a.f.1.2 2 21.2 odd 6
637.2.e.h.79.1 4 21.20 even 2
637.2.e.h.508.1 4 21.17 even 6
819.2.j.c.235.2 4 7.4 even 3 inner
819.2.j.c.352.2 4 1.1 even 1 trivial
1183.2.e.d.170.2 4 39.38 odd 2
1183.2.e.d.508.2 4 273.116 odd 6
1456.2.r.j.417.2 4 84.11 even 6
1456.2.r.j.625.2 4 12.11 even 2
5733.2.a.v.1.1 2 7.2 even 3
5733.2.a.w.1.1 2 7.5 odd 6
8281.2.a.z.1.1 2 273.233 odd 6
8281.2.a.ba.1.1 2 273.194 even 6