Properties

Label 2-15680-1.1-c1-0-74
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 + 4·13-s − 15-s − 6·19-s − 3·23-s + 25-s − 5·27-s + 3·29-s − 2·33-s + 12·37-s + 4·39-s + 7·41-s − 9·43-s + 2·45-s + 6·53-s + 2·55-s − 6·57-s + 10·59-s + 5·61-s − 4·65-s + 11·67-s − 3·69-s + 10·71-s + 8·73-s + ⋯
L(s)  = 1  + 0.577·3-s − 0.447·5-s − 2/3·9-s − 0.603·11-s + 1.10·13-s − 0.258·15-s − 1.37·19-s − 0.625·23-s + 1/5·25-s − 0.962·27-s + 0.557·29-s − 0.348·33-s + 1.97·37-s + 0.640·39-s + 1.09·41-s − 1.37·43-s + 0.298·45-s + 0.824·53-s + 0.269·55-s − 0.794·57-s + 1.30·59-s + 0.640·61-s − 0.496·65-s + 1.34·67-s − 0.361·69-s + 1.18·71-s + 0.936·73-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 \( 1 - 4 T + p T^{2} \)
17 \( 1 + p T^{2} \)
19 \( 1 + 6 T + p T^{2} \)
23 \( 1 + 3 T + p T^{2} \)
29 \( 1 - 3 T + p T^{2} \)
31 \( 1 + p T^{2} \)
37 \( 1 - 12 T + p T^{2} \)
41 \( 1 - 7 T + p T^{2} \)
43 \( 1 + 9 T + p T^{2} \)
47 \( 1 + p T^{2} \)
53 \( 1 - 6 T + p T^{2} \)
59 \( 1 - 10 T + p T^{2} \)
61 \( 1 - 5 T + p T^{2} \)
67 \( 1 - 11 T + p T^{2} \)
71 \( 1 - 10 T + p T^{2} \)
73 \( 1 - 8 T + p T^{2} \)
79 \( 1 + 6 T + p T^{2} \)
83 \( 1 - 3 T + p T^{2} \)
89 \( 1 + 17 T + p T^{2} \)
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

−16.19254086561140, −15.71073991763573, −15.03317096382938, −14.73355162016819, −14.06234899553830, −13.50481733326951, −12.99159172558534, −12.50948377010192, −11.65391400240433, −11.19880446655938, −10.76517241086868, −9.995941389378012, −9.401452928245634, −8.614459310488077, −8.159900855933899, −8.024748840777779, −6.947364092189233, −6.347507731376195, −5.738792646876990, −5.010811781724806, −3.968704186183275, −3.822755626043629, −2.658573554982230, −2.354943130528988, −1.100792536075777, 0, 1.100792536075777, 2.354943130528988, 2.658573554982230, 3.822755626043629, 3.968704186183275, 5.010811781724806, 5.738792646876990, 6.347507731376195, 6.947364092189233, 8.024748840777779, 8.159900855933899, 8.614459310488077, 9.401452928245634, 9.995941389378012, 10.76517241086868, 11.19880446655938, 11.65391400240433, 12.50948377010192, 12.99159172558534, 13.50481733326951, 14.06234899553830, 14.73355162016819, 15.03317096382938, 15.71073991763573, 16.19254086561140

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