Properties

Label 2-15680-1.1-c1-0-64
Degree $2$
Conductor $15680$
Sign $-1$
Analytic cond. $125.205$
Root an. cond. $11.1895$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 3-s − 5-s − 2·9-s + 2·11-s + 2·13-s + 15-s + 2·17-s + 23-s + 25-s + 5·27-s + 29-s + 2·31-s − 2·33-s − 4·37-s − 2·39-s − 5·41-s − 11·43-s + 2·45-s − 8·47-s − 2·51-s + 8·53-s − 2·55-s − 4·59-s − 5·61-s − 2·65-s + 67-s − 69-s + ⋯
L(s)  = 1  − 0.577·3-s − 0.447·5-s − 2/3·9-s + 0.603·11-s + 0.554·13-s + 0.258·15-s + 0.485·17-s + 0.208·23-s + 1/5·25-s + 0.962·27-s + 0.185·29-s + 0.359·31-s − 0.348·33-s − 0.657·37-s − 0.320·39-s − 0.780·41-s − 1.67·43-s + 0.298·45-s − 1.16·47-s − 0.280·51-s + 1.09·53-s − 0.269·55-s − 0.520·59-s − 0.640·61-s − 0.248·65-s + 0.122·67-s − 0.120·69-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 15680 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 15680 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(15680\)    =    \(2^{6} \cdot 5 \cdot 7^{2}\)
Sign: $-1$
Analytic conductor: \(125.205\)
Root analytic conductor: \(11.1895\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 15680,\ (\ :1/2),\ -1)\)

Particular Values

\(L(1)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
5 \( 1 + T \)
7 \( 1 \)
good3 \( 1 + T + p T^{2} \)
11 \( 1 - 2 T + p T^{2} \)
13 \( 1 - 2 T + p T^{2} \)
17 \( 1 - 2 T + p T^{2} \)
19 \( 1 + p T^{2} \)
23 \( 1 - T + p T^{2} \)
29 \( 1 - T + p T^{2} \)
31 \( 1 - 2 T + p T^{2} \)
37 \( 1 + 4 T + p T^{2} \)
41 \( 1 + 5 T + p T^{2} \)
43 \( 1 + 11 T + p T^{2} \)
47 \( 1 + 8 T + p T^{2} \)
53 \( 1 - 8 T + p T^{2} \)
59 \( 1 + 4 T + p T^{2} \)
61 \( 1 + 5 T + p T^{2} \)
67 \( 1 - T + p T^{2} \)
71 \( 1 + 12 T + p T^{2} \)
73 \( 1 + 6 T + p T^{2} \)
79 \( 1 - 4 T + p T^{2} \)
83 \( 1 - 13 T + p T^{2} \)
89 \( 1 - 3 T + p T^{2} \)
97 \( 1 - 2 T + p T^{2} \)
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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

−16.44297012752525, −15.76353030393401, −15.15360065601586, −14.65215521129626, −14.10489766831191, −13.46443397321197, −12.95273986334730, −12.02353521787661, −11.83717111410630, −11.41822300664701, −10.57560696199566, −10.28942633616393, −9.389765366470202, −8.742695938164380, −8.321780804534997, −7.635697842251592, −6.783307270513412, −6.404311518633095, −5.685142314759815, −5.040056501642286, −4.426806998110103, −3.444324152990580, −3.129664384545378, −1.896817494136521, −1.009852983427789, 0, 1.009852983427789, 1.896817494136521, 3.129664384545378, 3.444324152990580, 4.426806998110103, 5.040056501642286, 5.685142314759815, 6.404311518633095, 6.783307270513412, 7.635697842251592, 8.321780804534997, 8.742695938164380, 9.389765366470202, 10.28942633616393, 10.57560696199566, 11.41822300664701, 11.83717111410630, 12.02353521787661, 12.95273986334730, 13.46443397321197, 14.10489766831191, 14.65215521129626, 15.15360065601586, 15.76353030393401, 16.44297012752525

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