Properties

Label 2-80-20.19-c0-0-0
Degree $2$
Conductor $80$
Sign $1$
Analytic cond. $0.0399252$
Root an. cond. $0.199812$
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 − 9-s + 25-s + 2·29-s − 2·41-s + 45-s − 49-s − 2·61-s + 81-s + 2·89-s + 2·101-s − 2·109-s + ⋯
L(s)  = 1  − 5-s − 9-s + 25-s + 2·29-s − 2·41-s + 45-s − 49-s − 2·61-s + 81-s + 2·89-s + 2·101-s − 2·109-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 80 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 80 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(80\)    =    \(2^{4} \cdot 5\)
Sign: $1$
Analytic conductor: \(0.0399252\)
Root analytic conductor: \(0.199812\)
Motivic weight: \(0\)
Rational: yes
Arithmetic: yes
Character: $\chi_{80} (79, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 80,\ (\ :0),\ 1)\)

Particular Values

\(L(\frac{1}{2})\) \(\approx\) \(0.4643475584\)
\(L(\frac12)\) \(\approx\) \(0.4643475584\)
\(L(1)\) 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 \( 1 + T \)
good3 \( 1 + T^{2} \)
7 \( 1 + T^{2} \)
11 \( ( 1 - T )( 1 + T ) \)
13 \( ( 1 - T )( 1 + T ) \)
17 \( ( 1 - T )( 1 + T ) \)
19 \( ( 1 - T )( 1 + T ) \)
23 \( 1 + T^{2} \)
29 \( ( 1 - T )^{2} \)
31 \( ( 1 - T )( 1 + T ) \)
37 \( ( 1 - T )( 1 + T ) \)
41 \( ( 1 + T )^{2} \)
43 \( 1 + T^{2} \)
47 \( 1 + T^{2} \)
53 \( ( 1 - T )( 1 + T ) \)
59 \( ( 1 - T )( 1 + T ) \)
61 \( ( 1 + T )^{2} \)
67 \( 1 + T^{2} \)
71 \( ( 1 - T )( 1 + T ) \)
73 \( ( 1 - T )( 1 + T ) \)
79 \( ( 1 - T )( 1 + T ) \)
83 \( 1 + T^{2} \)
89 \( ( 1 - T )^{2} \)
97 \( ( 1 - T )( 1 + T ) \)
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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

−14.71004762413275441512730195253, −13.69240792583054166179238644349, −12.27030224826286889685238700312, −11.54177841888707105180080511420, −10.41708110873279474671747278381, −8.820916987388348246449123416127, −7.935729000773875944090370436264, −6.49941746742761161543060822888, −4.84156760187899842160701524540, −3.18874463093794795645386180893, 3.18874463093794795645386180893, 4.84156760187899842160701524540, 6.49941746742761161543060822888, 7.935729000773875944090370436264, 8.820916987388348246449123416127, 10.41708110873279474671747278381, 11.54177841888707105180080511420, 12.27030224826286889685238700312, 13.69240792583054166179238644349, 14.71004762413275441512730195253

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