Properties

Label 2-648-216.11-c1-0-2
Degree $2$
Conductor $648$
Sign $0.816 - 0.576i$
Analytic cond. $5.17430$
Root an. cond. $2.27471$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (−0.505 − 1.32i)2-s + (−1.48 + 1.33i)4-s + (−3.21 − 1.16i)5-s + (−0.199 − 0.0351i)7-s + (2.51 + 1.28i)8-s + (0.0809 + 4.83i)10-s + (−1.37 − 3.78i)11-s + (1.09 + 1.30i)13-s + (0.0543 + 0.280i)14-s + (0.429 − 3.97i)16-s + (−1.57 + 0.908i)17-s + (−3.24 + 5.61i)19-s + (6.34 − 2.55i)20-s + (−4.29 + 3.73i)22-s + (1.37 + 7.80i)23-s + ⋯
L(s)  = 1  + (−0.357 − 0.933i)2-s + (−0.744 + 0.668i)4-s + (−1.43 − 0.523i)5-s + (−0.0752 − 0.0132i)7-s + (0.890 + 0.455i)8-s + (0.0256 + 1.52i)10-s + (−0.415 − 1.14i)11-s + (0.304 + 0.362i)13-s + (0.0145 + 0.0750i)14-s + (0.107 − 0.994i)16-s + (−0.381 + 0.220i)17-s + (−0.743 + 1.28i)19-s + (1.41 − 0.570i)20-s + (−0.916 + 0.795i)22-s + (0.286 + 1.62i)23-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 648 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.816 - 0.576i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 648 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.816 - 0.576i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(648\)    =    \(2^{3} \cdot 3^{4}\)
Sign: $0.816 - 0.576i$
Analytic conductor: \(5.17430\)
Root analytic conductor: \(2.27471\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{648} (35, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 648,\ (\ :1/2),\ 0.816 - 0.576i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.435330 + 0.138231i\)
\(L(\frac12)\) \(\approx\) \(0.435330 + 0.138231i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + (0.505 + 1.32i)T \)
3 \( 1 \)
good5 \( 1 + (3.21 + 1.16i)T + (3.83 + 3.21i)T^{2} \)
7 \( 1 + (0.199 + 0.0351i)T + (6.57 + 2.39i)T^{2} \)
11 \( 1 + (1.37 + 3.78i)T + (-8.42 + 7.07i)T^{2} \)
13 \( 1 + (-1.09 - 1.30i)T + (-2.25 + 12.8i)T^{2} \)
17 \( 1 + (1.57 - 0.908i)T + (8.5 - 14.7i)T^{2} \)
19 \( 1 + (3.24 - 5.61i)T + (-9.5 - 16.4i)T^{2} \)
23 \( 1 + (-1.37 - 7.80i)T + (-21.6 + 7.86i)T^{2} \)
29 \( 1 + (-3.08 - 2.58i)T + (5.03 + 28.5i)T^{2} \)
31 \( 1 + (-7.51 + 1.32i)T + (29.1 - 10.6i)T^{2} \)
37 \( 1 + (-1.53 + 0.885i)T + (18.5 - 32.0i)T^{2} \)
41 \( 1 + (-6.61 - 7.88i)T + (-7.11 + 40.3i)T^{2} \)
43 \( 1 + (-3.47 + 1.26i)T + (32.9 - 27.6i)T^{2} \)
47 \( 1 + (0.523 - 2.97i)T + (-44.1 - 16.0i)T^{2} \)
53 \( 1 + 9.46T + 53T^{2} \)
59 \( 1 + (1.23 - 3.38i)T + (-45.1 - 37.9i)T^{2} \)
61 \( 1 + (8.13 + 1.43i)T + (57.3 + 20.8i)T^{2} \)
67 \( 1 + (1.26 - 1.06i)T + (11.6 - 65.9i)T^{2} \)
71 \( 1 + (-2.24 - 3.89i)T + (-35.5 + 61.4i)T^{2} \)
73 \( 1 + (4.05 - 7.01i)T + (-36.5 - 63.2i)T^{2} \)
79 \( 1 + (0.380 - 0.453i)T + (-13.7 - 77.7i)T^{2} \)
83 \( 1 + (-8.02 + 9.56i)T + (-14.4 - 81.7i)T^{2} \)
89 \( 1 + (10.7 + 6.18i)T + (44.5 + 77.0i)T^{2} \)
97 \( 1 + (8.24 - 3.00i)T + (74.3 - 62.3i)T^{2} \)
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   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{2} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−10.94600366071810510926264676820, −9.827658094762895113923396570765, −8.811607861722397564091171900393, −8.168042456805968599085840842389, −7.64302043821191009796426825980, −6.09319685897862067927794454698, −4.71020274131655087958069124662, −3.88865240190925854707303789575, −3.04936145955810489589662464211, −1.22248674133032257733560301350, 0.32378575175869916216197526742, 2.71513865028857519626291853470, 4.32966761409140913607617194461, 4.73303328179046451238411711166, 6.38893857694040016005257662817, 6.96708687072265967426153735877, 7.82793037293793881134877035365, 8.441107169126671905370363644317, 9.433211646521550836043448348658, 10.55358074069951651817945073843

Graph of the $Z$-function along the critical line