Properties

Label 2-7e2-49.2-c1-0-0
Degree $2$
Conductor $49$
Sign $0.884 - 0.466i$
Analytic cond. $0.391266$
Root an. cond. $0.625513$
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  + (−2.50 − 0.772i)2-s + (−0.539 + 1.37i)3-s + (4.02 + 2.74i)4-s + (2.04 − 0.307i)5-s + (2.41 − 3.02i)6-s + (0.189 + 2.63i)7-s + (−4.69 − 5.89i)8-s + (0.598 + 0.555i)9-s + (−5.35 − 0.806i)10-s + (−1.36 + 1.27i)11-s + (−5.95 + 4.05i)12-s + (−0.677 − 2.96i)13-s + (1.56 − 6.75i)14-s + (−0.679 + 2.97i)15-s + (3.65 + 9.32i)16-s + (−0.104 − 1.40i)17-s + ⋯
L(s)  = 1  + (−1.77 − 0.546i)2-s + (−0.311 + 0.794i)3-s + (2.01 + 1.37i)4-s + (0.913 − 0.137i)5-s + (0.986 − 1.23i)6-s + (0.0717 + 0.997i)7-s + (−1.66 − 2.08i)8-s + (0.199 + 0.185i)9-s + (−1.69 − 0.255i)10-s + (−0.413 + 0.383i)11-s + (−1.71 + 1.17i)12-s + (−0.187 − 0.822i)13-s + (0.417 − 1.80i)14-s + (−0.175 + 0.768i)15-s + (0.914 + 2.33i)16-s + (−0.0254 − 0.339i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.884 - 0.466i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.884 - 0.466i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(49\)    =    \(7^{2}\)
Sign: $0.884 - 0.466i$
Analytic conductor: \(0.391266\)
Root analytic conductor: \(0.625513\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{49} (2, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 49,\ (\ :1/2),\ 0.884 - 0.466i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.408590 + 0.101187i\)
\(L(\frac12)\) \(\approx\) \(0.408590 + 0.101187i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad7 \( 1 + (-0.189 - 2.63i)T \)
good2 \( 1 + (2.50 + 0.772i)T + (1.65 + 1.12i)T^{2} \)
3 \( 1 + (0.539 - 1.37i)T + (-2.19 - 2.04i)T^{2} \)
5 \( 1 + (-2.04 + 0.307i)T + (4.77 - 1.47i)T^{2} \)
11 \( 1 + (1.36 - 1.27i)T + (0.822 - 10.9i)T^{2} \)
13 \( 1 + (0.677 + 2.96i)T + (-11.7 + 5.64i)T^{2} \)
17 \( 1 + (0.104 + 1.40i)T + (-16.8 + 2.53i)T^{2} \)
19 \( 1 + (-2.73 + 4.73i)T + (-9.5 - 16.4i)T^{2} \)
23 \( 1 + (0.0152 - 0.203i)T + (-22.7 - 3.42i)T^{2} \)
29 \( 1 + (-1.62 - 0.781i)T + (18.0 + 22.6i)T^{2} \)
31 \( 1 + (2.57 + 4.46i)T + (-15.5 + 26.8i)T^{2} \)
37 \( 1 + (-6.23 + 4.25i)T + (13.5 - 34.4i)T^{2} \)
41 \( 1 + (5.90 + 7.40i)T + (-9.12 + 39.9i)T^{2} \)
43 \( 1 + (-1.59 + 2.00i)T + (-9.56 - 41.9i)T^{2} \)
47 \( 1 + (-1.58 - 0.490i)T + (38.8 + 26.4i)T^{2} \)
53 \( 1 + (-5.98 - 4.07i)T + (19.3 + 49.3i)T^{2} \)
59 \( 1 + (-8.25 - 1.24i)T + (56.3 + 17.3i)T^{2} \)
61 \( 1 + (5.45 - 3.72i)T + (22.2 - 56.7i)T^{2} \)
67 \( 1 + (1.78 + 3.10i)T + (-33.5 + 58.0i)T^{2} \)
71 \( 1 + (6.02 - 2.89i)T + (44.2 - 55.5i)T^{2} \)
73 \( 1 + (0.168 - 0.0521i)T + (60.3 - 41.1i)T^{2} \)
79 \( 1 + (7.82 - 13.5i)T + (-39.5 - 68.4i)T^{2} \)
83 \( 1 + (-2.14 + 9.39i)T + (-74.7 - 36.0i)T^{2} \)
89 \( 1 + (-0.911 - 0.845i)T + (6.65 + 88.7i)T^{2} \)
97 \( 1 - 13.9T + 97T^{2} \)
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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

−15.99799761197440130581242225561, −15.30439873856672007936541792124, −13.07008081590860911901993702709, −11.72805527166984780569820907659, −10.59338460892450861381649136476, −9.743624919292009080962151744966, −8.992400315194067536834872930907, −7.47649351432565134135919479480, −5.48303141057908662627759397655, −2.41756159418740217473334044149, 1.51082603664156141670277864912, 6.07133961041192912468456433790, 6.98910938834967324177768184257, 8.056086040450478827011421098576, 9.625289146492597392118716360618, 10.36485291734542553494756887831, 11.68442978032125672537903805163, 13.39830606476109052890475491733, 14.59543681727923282976358293873, 16.19224884137059967489144551364

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