Properties

Label 2-1890-1.1-c1-0-8
Degree $2$
Conductor $1890$
Sign $1$
Analytic cond. $15.0917$
Root an. cond. $3.88480$
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  + 2-s + 4-s − 5-s − 7-s + 8-s − 10-s + 11-s + 3·13-s − 14-s + 16-s + 8·17-s − 3·19-s − 20-s + 22-s − 6·23-s + 25-s + 3·26-s − 28-s + 6·29-s − 4·31-s + 32-s + 8·34-s + 35-s + 2·37-s − 3·38-s − 40-s + 11·41-s + ⋯
L(s)  = 1  + 0.707·2-s + 1/2·4-s − 0.447·5-s − 0.377·7-s + 0.353·8-s − 0.316·10-s + 0.301·11-s + 0.832·13-s − 0.267·14-s + 1/4·16-s + 1.94·17-s − 0.688·19-s − 0.223·20-s + 0.213·22-s − 1.25·23-s + 1/5·25-s + 0.588·26-s − 0.188·28-s + 1.11·29-s − 0.718·31-s + 0.176·32-s + 1.37·34-s + 0.169·35-s + 0.328·37-s − 0.486·38-s − 0.158·40-s + 1.71·41-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1890 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1890 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1890\)    =    \(2 \cdot 3^{3} \cdot 5 \cdot 7\)
Sign: $1$
Analytic conductor: \(15.0917\)
Root analytic conductor: \(3.88480\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 1890,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.649932581\)
\(L(\frac12)\) \(\approx\) \(2.649932581\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - T \)
3 \( 1 \)
5 \( 1 + T \)
7 \( 1 + T \)
good11 \( 1 - T + p T^{2} \)
13 \( 1 - 3 T + p T^{2} \)
17 \( 1 - 8 T + p T^{2} \)
19 \( 1 + 3 T + p T^{2} \)
23 \( 1 + 6 T + p T^{2} \)
29 \( 1 - 6 T + p T^{2} \)
31 \( 1 + 4 T + p T^{2} \)
37 \( 1 - 2 T + p T^{2} \)
41 \( 1 - 11 T + p T^{2} \)
43 \( 1 - T + p T^{2} \)
47 \( 1 + T + p T^{2} \)
53 \( 1 - T + p T^{2} \)
59 \( 1 - 10 T + p T^{2} \)
61 \( 1 - 4 T + p T^{2} \)
67 \( 1 + 3 T + p T^{2} \)
71 \( 1 - 8 T + p T^{2} \)
73 \( 1 - 11 T + p T^{2} \)
79 \( 1 - 4 T + p T^{2} \)
83 \( 1 - 11 T + p T^{2} \)
89 \( 1 - 7 T + p T^{2} \)
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

−9.262376083734799386446326567048, −8.193558722618938481714595933668, −7.71612958689988930627770884554, −6.64050986012999694700244620035, −6.01556105348177316652884975092, −5.22198227102056816747420800181, −4.01475654289198334733173459253, −3.61495074489563682100896753660, −2.47177520409495365376892223744, −1.04434040928825976495251355636, 1.04434040928825976495251355636, 2.47177520409495365376892223744, 3.61495074489563682100896753660, 4.01475654289198334733173459253, 5.22198227102056816747420800181, 6.01556105348177316652884975092, 6.64050986012999694700244620035, 7.71612958689988930627770884554, 8.193558722618938481714595933668, 9.262376083734799386446326567048

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