Properties

Label 2-1568-8.3-c2-0-7
Degree $2$
Conductor $1568$
Sign $0.5 - 0.866i$
Analytic cond. $42.7249$
Root an. cond. $6.53642$
Motivic weight $2$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 3-s − 5.19i·5-s − 8·9-s − 17·11-s − 13.8i·13-s + 5.19i·15-s − 25·17-s + 7·19-s − 5.19i·23-s − 2·25-s + 17·27-s + 13.8i·29-s + 32.9i·31-s + 17·33-s + 8.66i·37-s + ⋯
L(s)  = 1  − 0.333·3-s − 1.03i·5-s − 0.888·9-s − 1.54·11-s − 1.06i·13-s + 0.346i·15-s − 1.47·17-s + 0.368·19-s − 0.225i·23-s − 0.0800·25-s + 0.629·27-s + 0.477i·29-s + 1.06i·31-s + 0.515·33-s + 0.234i·37-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1568 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.5 - 0.866i)\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1568 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & (0.5 - 0.866i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1568\)    =    \(2^{5} \cdot 7^{2}\)
Sign: $0.5 - 0.866i$
Analytic conductor: \(42.7249\)
Root analytic conductor: \(6.53642\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{1568} (687, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1568,\ (\ :1),\ 0.5 - 0.866i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(0.4895897940\)
\(L(\frac12)\) \(\approx\) \(0.4895897940\)
\(L(2)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
7 \( 1 \)
good3 \( 1 + T + 9T^{2} \)
5 \( 1 + 5.19iT - 25T^{2} \)
11 \( 1 + 17T + 121T^{2} \)
13 \( 1 + 13.8iT - 169T^{2} \)
17 \( 1 + 25T + 289T^{2} \)
19 \( 1 - 7T + 361T^{2} \)
23 \( 1 + 5.19iT - 529T^{2} \)
29 \( 1 - 13.8iT - 841T^{2} \)
31 \( 1 - 32.9iT - 961T^{2} \)
37 \( 1 - 8.66iT - 1.36e3T^{2} \)
41 \( 1 - 26T + 1.68e3T^{2} \)
43 \( 1 + 14T + 1.84e3T^{2} \)
47 \( 1 - 50.2iT - 2.20e3T^{2} \)
53 \( 1 + 91.7iT - 2.80e3T^{2} \)
59 \( 1 - 55T + 3.48e3T^{2} \)
61 \( 1 - 22.5iT - 3.72e3T^{2} \)
67 \( 1 + 17T + 4.48e3T^{2} \)
71 \( 1 - 5.04e3T^{2} \)
73 \( 1 - 119T + 5.32e3T^{2} \)
79 \( 1 + 74.4iT - 6.24e3T^{2} \)
83 \( 1 + 110T + 6.88e3T^{2} \)
89 \( 1 - 71T + 7.92e3T^{2} \)
97 \( 1 + 22T + 9.40e3T^{2} \)
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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

−9.226681735418963901737512452034, −8.464790529258025557998379118619, −8.068441847038769378233413373198, −6.96436335428528920012894623192, −5.89977193404019294035735033885, −5.14762795094353522404674793220, −4.75428663392179419049555187533, −3.25190631379437333822161851679, −2.34922867621252734167130544817, −0.77185455613480110012205615524, 0.18758579807802497135973870590, 2.24911892018452071153316346585, 2.78071235242459858254878995313, 4.03126787666172070888545901443, 5.05821808081289894260915059764, 5.91974074484737001264117780466, 6.67402285489190468793034546011, 7.40721291082292431501327823937, 8.279066911135809340545206980184, 9.123898892407544240494017593281

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