Properties

Label 2-205-1.1-c1-0-8
Degree $2$
Conductor $205$
Sign $-1$
Analytic cond. $1.63693$
Root an. cond. $1.27942$
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  − 2-s − 4-s + 5-s − 4·7-s + 3·8-s − 3·9-s − 10-s − 2·13-s + 4·14-s − 16-s − 6·17-s + 3·18-s − 20-s − 8·23-s + 25-s + 2·26-s + 4·28-s + 6·29-s − 5·32-s + 6·34-s − 4·35-s + 3·36-s + 6·37-s + 3·40-s + 41-s + 4·43-s − 3·45-s + ⋯
L(s)  = 1  − 0.707·2-s − 1/2·4-s + 0.447·5-s − 1.51·7-s + 1.06·8-s − 9-s − 0.316·10-s − 0.554·13-s + 1.06·14-s − 1/4·16-s − 1.45·17-s + 0.707·18-s − 0.223·20-s − 1.66·23-s + 1/5·25-s + 0.392·26-s + 0.755·28-s + 1.11·29-s − 0.883·32-s + 1.02·34-s − 0.676·35-s + 1/2·36-s + 0.986·37-s + 0.474·40-s + 0.156·41-s + 0.609·43-s − 0.447·45-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 205 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 205 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(205\)    =    \(5 \cdot 41\)
Sign: $-1$
Analytic conductor: \(1.63693\)
Root analytic conductor: \(1.27942\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 205,\ (\ :1/2),\ -1)\)

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)$
bad5 \( 1 - T \)
41 \( 1 - T \)
good2 \( 1 + T + p T^{2} \)
3 \( 1 + p T^{2} \)
7 \( 1 + 4 T + p T^{2} \)
11 \( 1 + p T^{2} \)
13 \( 1 + 2 T + p T^{2} \)
17 \( 1 + 6 T + p T^{2} \)
19 \( 1 + p T^{2} \)
23 \( 1 + 8 T + p T^{2} \)
29 \( 1 - 6 T + p T^{2} \)
31 \( 1 + p T^{2} \)
37 \( 1 - 6 T + p T^{2} \)
43 \( 1 - 4 T + p T^{2} \)
47 \( 1 + 4 T + p T^{2} \)
53 \( 1 - 6 T + p T^{2} \)
59 \( 1 + 4 T + p T^{2} \)
61 \( 1 - 14 T + p T^{2} \)
67 \( 1 + 8 T + p T^{2} \)
71 \( 1 + 12 T + p T^{2} \)
73 \( 1 + 6 T + p T^{2} \)
79 \( 1 + 4 T + p T^{2} \)
83 \( 1 - 4 T + p T^{2} \)
89 \( 1 + 6 T + p T^{2} \)
97 \( 1 + 6 T + p T^{2} \)
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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

−11.93450768172631259062214800288, −10.59674722336712637467004889245, −9.786822083448618856097399512400, −9.104973006323854487272781038861, −8.185899683953959523799523920888, −6.77337413472352473188697214294, −5.78635720535852048108327814868, −4.25020877925447943629142282453, −2.60807987098564229857754881826, 0, 2.60807987098564229857754881826, 4.25020877925447943629142282453, 5.78635720535852048108327814868, 6.77337413472352473188697214294, 8.185899683953959523799523920888, 9.104973006323854487272781038861, 9.786822083448618856097399512400, 10.59674722336712637467004889245, 11.93450768172631259062214800288

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