Properties

Label 2-15680-1.1-c1-0-73
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 − 5·11-s + 13-s − 15-s − 3·17-s + 6·19-s + 6·23-s + 25-s − 5·27-s + 9·29-s − 5·33-s − 6·37-s + 39-s − 8·41-s + 6·43-s + 2·45-s + 3·47-s − 3·51-s + 12·53-s + 5·55-s + 6·57-s − 8·59-s − 4·61-s − 65-s − 4·67-s + ⋯
L(s)  = 1  + 0.577·3-s − 0.447·5-s − 2/3·9-s − 1.50·11-s + 0.277·13-s − 0.258·15-s − 0.727·17-s + 1.37·19-s + 1.25·23-s + 1/5·25-s − 0.962·27-s + 1.67·29-s − 0.870·33-s − 0.986·37-s + 0.160·39-s − 1.24·41-s + 0.914·43-s + 0.298·45-s + 0.437·47-s − 0.420·51-s + 1.64·53-s + 0.674·55-s + 0.794·57-s − 1.04·59-s − 0.512·61-s − 0.124·65-s − 0.488·67-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 \( 1 + 5 T + p T^{2} \)
13 \( 1 - T + p T^{2} \)
17 \( 1 + 3 T + p T^{2} \)
19 \( 1 - 6 T + p T^{2} \)
23 \( 1 - 6 T + p T^{2} \)
29 \( 1 - 9 T + p T^{2} \)
31 \( 1 + p T^{2} \)
37 \( 1 + 6 T + p T^{2} \)
41 \( 1 + 8 T + p T^{2} \)
43 \( 1 - 6 T + p T^{2} \)
47 \( 1 - 3 T + p T^{2} \)
53 \( 1 - 12 T + p T^{2} \)
59 \( 1 + 8 T + p T^{2} \)
61 \( 1 + 4 T + p T^{2} \)
67 \( 1 + 4 T + p T^{2} \)
71 \( 1 + 8 T + p T^{2} \)
73 \( 1 + 10 T + p T^{2} \)
79 \( 1 - 3 T + p T^{2} \)
83 \( 1 - 12 T + p T^{2} \)
89 \( 1 - 16 T + p T^{2} \)
97 \( 1 + 7 T + p T^{2} \)
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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

−16.13752399665849, −15.58441686007880, −15.30066496579330, −14.67269479190140, −13.90571771516960, −13.52046152198437, −13.20268542631522, −12.21091417282409, −11.92046815657448, −11.15657399302716, −10.58243633115838, −10.20856029961735, −9.187956023286037, −8.841250528357901, −8.256695665359497, −7.661743441203943, −7.175489430489124, −6.400271393001587, −5.481212589068981, −5.095623927189608, −4.338217803912152, −3.291507886346988, −2.965791649450365, −2.290019958415553, −1.071940230259338, 0, 1.071940230259338, 2.290019958415553, 2.965791649450365, 3.291507886346988, 4.338217803912152, 5.095623927189608, 5.481212589068981, 6.400271393001587, 7.175489430489124, 7.661743441203943, 8.256695665359497, 8.841250528357901, 9.187956023286037, 10.20856029961735, 10.58243633115838, 11.15657399302716, 11.92046815657448, 12.21091417282409, 13.20268542631522, 13.52046152198437, 13.90571771516960, 14.67269479190140, 15.30066496579330, 15.58441686007880, 16.13752399665849

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