Properties

Label 2-1840-115.114-c0-0-0
Degree $2$
Conductor $1840$
Sign $1$
Analytic cond. $0.918279$
Root an. cond. $0.958269$
Motivic weight $0$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 5-s − 7-s + 9-s + 17-s + 23-s + 25-s − 29-s + 31-s + 35-s + 37-s − 41-s + 2·43-s − 45-s + 53-s + 59-s − 63-s − 67-s + 71-s + 81-s − 83-s − 85-s − 2·97-s − 101-s + 2·103-s − 107-s + 113-s − 115-s + ⋯
L(s)  = 1  − 5-s − 7-s + 9-s + 17-s + 23-s + 25-s − 29-s + 31-s + 35-s + 37-s − 41-s + 2·43-s − 45-s + 53-s + 59-s − 63-s − 67-s + 71-s + 81-s − 83-s − 85-s − 2·97-s − 101-s + 2·103-s − 107-s + 113-s − 115-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1840\)    =    \(2^{4} \cdot 5 \cdot 23\)
Sign: $1$
Analytic conductor: \(0.918279\)
Root analytic conductor: \(0.958269\)
Motivic weight: \(0\)
Rational: yes
Arithmetic: yes
Character: $\chi_{1840} (689, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 1840,\ (\ :0),\ 1)\)

Particular Values

\(L(\frac{1}{2})\) \(\approx\) \(0.9484836594\)
\(L(\frac12)\) \(\approx\) \(0.9484836594\)
\(L(1)\) 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 \( 1 + T \)
23 \( 1 - T \)
good3 \( ( 1 - T )( 1 + T ) \)
7 \( 1 + T + T^{2} \)
11 \( ( 1 - T )( 1 + T ) \)
13 \( ( 1 - T )( 1 + T ) \)
17 \( 1 - T + T^{2} \)
19 \( ( 1 - T )( 1 + T ) \)
29 \( 1 + T + T^{2} \)
31 \( 1 - T + T^{2} \)
37 \( 1 - T + T^{2} \)
41 \( 1 + T + T^{2} \)
43 \( ( 1 - T )^{2} \)
47 \( ( 1 - T )( 1 + T ) \)
53 \( 1 - T + T^{2} \)
59 \( 1 - T + T^{2} \)
61 \( ( 1 - T )( 1 + T ) \)
67 \( 1 + T + T^{2} \)
71 \( 1 - T + T^{2} \)
73 \( ( 1 - T )( 1 + T ) \)
79 \( ( 1 - T )( 1 + T ) \)
83 \( 1 + T + T^{2} \)
89 \( ( 1 - T )( 1 + T ) \)
97 \( ( 1 + T )^{2} \)
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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

−9.527480437769610808204064078973, −8.663388116802846581298223362084, −7.69425274925565433646195238516, −7.19015180011613669301157922505, −6.42065219380660280149382692539, −5.36834497066931379915657560904, −4.32523427298179347282566993893, −3.63745136853782111012616740964, −2.74452236035746829472615795306, −1.02262142981773408609355804375, 1.02262142981773408609355804375, 2.74452236035746829472615795306, 3.63745136853782111012616740964, 4.32523427298179347282566993893, 5.36834497066931379915657560904, 6.42065219380660280149382692539, 7.19015180011613669301157922505, 7.69425274925565433646195238516, 8.663388116802846581298223362084, 9.527480437769610808204064078973

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