Properties

Label 2-1638-13.12-c1-0-2
Degree $2$
Conductor $1638$
Sign $0.155 - 0.987i$
Analytic cond. $13.0794$
Root an. cond. $3.61655$
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  i·2-s − 4-s + 0.561i·5-s i·7-s + i·8-s + 0.561·10-s − 1.43i·11-s + (−0.561 + 3.56i)13-s − 14-s + 16-s − 5.68·17-s + 2.56i·19-s − 0.561i·20-s − 1.43·22-s − 5.68·23-s + ⋯
L(s)  = 1  − 0.707i·2-s − 0.5·4-s + 0.251i·5-s − 0.377i·7-s + 0.353i·8-s + 0.177·10-s − 0.433i·11-s + (−0.155 + 0.987i)13-s − 0.267·14-s + 0.250·16-s − 1.37·17-s + 0.587i·19-s − 0.125i·20-s − 0.306·22-s − 1.18·23-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1638 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.155 - 0.987i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1638 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.155 - 0.987i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1638\)    =    \(2 \cdot 3^{2} \cdot 7 \cdot 13\)
Sign: $0.155 - 0.987i$
Analytic conductor: \(13.0794\)
Root analytic conductor: \(3.61655\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1638} (883, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1638,\ (\ :1/2),\ 0.155 - 0.987i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.6672855954\)
\(L(\frac12)\) \(\approx\) \(0.6672855954\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + iT \)
3 \( 1 \)
7 \( 1 + iT \)
13 \( 1 + (0.561 - 3.56i)T \)
good5 \( 1 - 0.561iT - 5T^{2} \)
11 \( 1 + 1.43iT - 11T^{2} \)
17 \( 1 + 5.68T + 17T^{2} \)
19 \( 1 - 2.56iT - 19T^{2} \)
23 \( 1 + 5.68T + 23T^{2} \)
29 \( 1 - 2.56T + 29T^{2} \)
31 \( 1 - 10.2iT - 31T^{2} \)
37 \( 1 + 1.68iT - 37T^{2} \)
41 \( 1 + 4iT - 41T^{2} \)
43 \( 1 + 10.5T + 43T^{2} \)
47 \( 1 + 6.24iT - 47T^{2} \)
53 \( 1 + 13.1T + 53T^{2} \)
59 \( 1 - 12.2iT - 59T^{2} \)
61 \( 1 - 2.56T + 61T^{2} \)
67 \( 1 - 7.12iT - 67T^{2} \)
71 \( 1 - 15.3iT - 71T^{2} \)
73 \( 1 - 7.43iT - 73T^{2} \)
79 \( 1 - 16T + 79T^{2} \)
83 \( 1 - 2iT - 83T^{2} \)
89 \( 1 - 8iT - 89T^{2} \)
97 \( 1 - 10iT - 97T^{2} \)
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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

−9.684654322148748228030493853632, −8.759084212614117702387245959603, −8.285669142384718736773497877302, −6.99040742126490024625468282418, −6.51806895831005079161044967438, −5.28230985526186378531729862953, −4.37609245092264660481832211416, −3.61608343461578230176173339762, −2.51316754184414403506535082180, −1.46392057190331767220953831121, 0.25206554934669423520573263660, 2.03918087890916176711063274807, 3.22225045847369398849373360800, 4.53911233509606547738407397057, 4.98307165946397463022839154433, 6.15886325572419055347140776746, 6.61310741798320649818039358926, 7.81021867252914182273784907333, 8.189539338820481759939802671797, 9.190292413249923740587369720609

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