Properties

Label 2-1890-1.1-c1-0-3
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 + 2·11-s − 3·13-s + 14-s + 16-s + 17-s + 20-s − 2·22-s + 3·23-s + 25-s + 3·26-s − 28-s + 3·29-s − 31-s − 32-s − 34-s − 35-s − 4·37-s − 40-s + 10·41-s + 43-s + 2·44-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 + 0.603·11-s − 0.832·13-s + 0.267·14-s + 1/4·16-s + 0.242·17-s + 0.223·20-s − 0.426·22-s + 0.625·23-s + 1/5·25-s + 0.588·26-s − 0.188·28-s + 0.557·29-s − 0.179·31-s − 0.176·32-s − 0.171·34-s − 0.169·35-s − 0.657·37-s − 0.158·40-s + 1.56·41-s + 0.152·43-s + 0.301·44-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

\(L(1)\) \(\approx\) \(1.287227801\)
\(L(\frac12)\) \(\approx\) \(1.287227801\)
\(L(\frac{3}{2})\) 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 \( 1 - 2 T + p T^{2} \)
13 \( 1 + 3 T + p T^{2} \)
17 \( 1 - T + p T^{2} \)
19 \( 1 + p T^{2} \)
23 \( 1 - 3 T + p T^{2} \)
29 \( 1 - 3 T + p T^{2} \)
31 \( 1 + T + p T^{2} \)
37 \( 1 + 4 T + p T^{2} \)
41 \( 1 - 10 T + p T^{2} \)
43 \( 1 - T + p T^{2} \)
47 \( 1 - 10 T + p T^{2} \)
53 \( 1 + T + p T^{2} \)
59 \( 1 - 5 T + p T^{2} \)
61 \( 1 - 10 T + p T^{2} \)
67 \( 1 + 3 T + p T^{2} \)
71 \( 1 + 5 T + p T^{2} \)
73 \( 1 + 10 T + p T^{2} \)
79 \( 1 - 4 T + p T^{2} \)
83 \( 1 - 4 T + p T^{2} \)
89 \( 1 + T + p T^{2} \)
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

−9.201083011878925058568508602928, −8.677223137643702261252067771868, −7.57168811898548713089886538984, −7.00089154525091260537202626506, −6.16514613608994129930558514176, −5.35265791560478832880711336693, −4.24407251799714467038164439819, −3.07253292824470384429806850260, −2.15129871944255289534696773590, −0.859351320544949077152406649964, 0.859351320544949077152406649964, 2.15129871944255289534696773590, 3.07253292824470384429806850260, 4.24407251799714467038164439819, 5.35265791560478832880711336693, 6.16514613608994129930558514176, 7.00089154525091260537202626506, 7.57168811898548713089886538984, 8.677223137643702261252067771868, 9.201083011878925058568508602928

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