Properties

Label 2-15680-1.1-c1-0-41
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 $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3·3-s − 5-s + 6·9-s + 2·11-s − 3·15-s + 4·17-s − 6·19-s + 3·23-s + 25-s + 9·27-s − 9·29-s + 4·31-s + 6·33-s + 4·37-s + 7·41-s + 5·43-s − 6·45-s − 8·47-s + 12·51-s + 2·53-s − 2·55-s − 18·57-s + 10·59-s + 61-s + 9·67-s + 9·69-s + 2·71-s + ⋯
L(s)  = 1  + 1.73·3-s − 0.447·5-s + 2·9-s + 0.603·11-s − 0.774·15-s + 0.970·17-s − 1.37·19-s + 0.625·23-s + 1/5·25-s + 1.73·27-s − 1.67·29-s + 0.718·31-s + 1.04·33-s + 0.657·37-s + 1.09·41-s + 0.762·43-s − 0.894·45-s − 1.16·47-s + 1.68·51-s + 0.274·53-s − 0.269·55-s − 2.38·57-s + 1.30·59-s + 0.128·61-s + 1.09·67-s + 1.08·69-s + 0.237·71-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: \(0\)
Selberg data: \((2,\ 15680,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(4.484466987\)
\(L(\frac12)\) \(\approx\) \(4.484466987\)
\(L(\frac{3}{2})\) 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 \( 1 - p T + p T^{2} \)
11 \( 1 - 2 T + p T^{2} \)
13 \( 1 + p T^{2} \)
17 \( 1 - 4 T + p T^{2} \)
19 \( 1 + 6 T + p T^{2} \)
23 \( 1 - 3 T + p T^{2} \)
29 \( 1 + 9 T + p T^{2} \)
31 \( 1 - 4 T + p T^{2} \)
37 \( 1 - 4 T + p T^{2} \)
41 \( 1 - 7 T + p T^{2} \)
43 \( 1 - 5 T + p T^{2} \)
47 \( 1 + 8 T + p T^{2} \)
53 \( 1 - 2 T + p T^{2} \)
59 \( 1 - 10 T + p T^{2} \)
61 \( 1 - T + p T^{2} \)
67 \( 1 - 9 T + p T^{2} \)
71 \( 1 - 2 T + p T^{2} \)
73 \( 1 - 4 T + p T^{2} \)
79 \( 1 - 10 T + p T^{2} \)
83 \( 1 + 7 T + p T^{2} \)
89 \( 1 + T + p T^{2} \)
97 \( 1 + 14 T + p T^{2} \)
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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

−15.84483950066143, −15.13705839138768, −14.84647136549764, −14.47793826673126, −13.92380790726831, −13.21133999001461, −12.78318869160244, −12.34956986274806, −11.40368411078181, −10.96760772605436, −10.10136266572857, −9.557133539625226, −9.136552155812015, −8.433400121093676, −8.082535198255559, −7.457027639681002, −6.907517315649189, −6.156733740387075, −5.231315739242097, −4.246698187066531, −3.921876339445850, −3.242752073394177, −2.510975381782087, −1.831827280274288, −0.8540635080166242, 0.8540635080166242, 1.831827280274288, 2.510975381782087, 3.242752073394177, 3.921876339445850, 4.246698187066531, 5.231315739242097, 6.156733740387075, 6.907517315649189, 7.457027639681002, 8.082535198255559, 8.433400121093676, 9.136552155812015, 9.557133539625226, 10.10136266572857, 10.96760772605436, 11.40368411078181, 12.34956986274806, 12.78318869160244, 13.21133999001461, 13.92380790726831, 14.47793826673126, 14.84647136549764, 15.13705839138768, 15.84483950066143

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