Properties

Label 2-20-20.19-c10-0-20
Degree $2$
Conductor $20$
Sign $1$
Analytic cond. $12.7071$
Root an. cond. $3.56470$
Motivic weight $10$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 32·2-s + 236·3-s + 1.02e3·4-s − 3.12e3·5-s + 7.55e3·6-s + 3.33e4·7-s + 3.27e4·8-s − 3.35e3·9-s − 1.00e5·10-s + 2.41e5·12-s + 1.06e6·14-s − 7.37e5·15-s + 1.04e6·16-s − 1.07e5·18-s − 3.20e6·20-s + 7.87e6·21-s − 1.16e6·23-s + 7.73e6·24-s + 9.76e6·25-s − 1.47e7·27-s + 3.41e7·28-s − 3.81e7·29-s − 2.36e7·30-s + 3.35e7·32-s − 1.04e8·35-s − 3.43e6·36-s − 1.02e8·40-s + ⋯
L(s)  = 1  + 2-s + 0.971·3-s + 4-s − 5-s + 0.971·6-s + 1.98·7-s + 8-s − 0.0567·9-s − 10-s + 0.971·12-s + 1.98·14-s − 0.971·15-s + 16-s − 0.0567·18-s − 20-s + 1.92·21-s − 0.181·23-s + 0.971·24-s + 25-s − 1.02·27-s + 1.98·28-s − 1.86·29-s − 0.971·30-s + 32-s − 1.98·35-s − 0.0567·36-s − 40-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 20 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(11-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 20 ^{s/2} \, \Gamma_{\C}(s+5) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(20\)    =    \(2^{2} \cdot 5\)
Sign: $1$
Analytic conductor: \(12.7071\)
Root analytic conductor: \(3.56470\)
Motivic weight: \(10\)
Rational: yes
Arithmetic: yes
Character: $\chi_{20} (19, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 20,\ (\ :5),\ 1)\)

Particular Values

\(L(\frac{11}{2})\) \(\approx\) \(4.405783231\)
\(L(\frac12)\) \(\approx\) \(4.405783231\)
\(L(6)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - p^{5} T \)
5 \( 1 + p^{5} T \)
good3 \( 1 - 236 T + p^{10} T^{2} \)
7 \( 1 - 33364 T + p^{10} T^{2} \)
11 \( ( 1 - p^{5} T )( 1 + p^{5} T ) \)
13 \( ( 1 - p^{5} T )( 1 + p^{5} T ) \)
17 \( ( 1 - p^{5} T )( 1 + p^{5} T ) \)
19 \( ( 1 - p^{5} T )( 1 + p^{5} T ) \)
23 \( 1 + 1169564 T + p^{10} T^{2} \)
29 \( 1 + 38179702 T + p^{10} T^{2} \)
31 \( ( 1 - p^{5} T )( 1 + p^{5} T ) \)
37 \( ( 1 - p^{5} T )( 1 + p^{5} T ) \)
41 \( 1 + 211028098 T + p^{10} T^{2} \)
43 \( 1 + 223663364 T + p^{10} T^{2} \)
47 \( 1 - 96887764 T + p^{10} T^{2} \)
53 \( ( 1 - p^{5} T )( 1 + p^{5} T ) \)
59 \( ( 1 - p^{5} T )( 1 + p^{5} T ) \)
61 \( 1 + 1041591898 T + p^{10} T^{2} \)
67 \( 1 - 2343243964 T + p^{10} T^{2} \)
71 \( ( 1 - p^{5} T )( 1 + p^{5} T ) \)
73 \( ( 1 - p^{5} T )( 1 + p^{5} T ) \)
79 \( ( 1 - p^{5} T )( 1 + p^{5} T ) \)
83 \( 1 - 5449159036 T + p^{10} T^{2} \)
89 \( 1 - 11118190898 T + p^{10} T^{2} \)
97 \( ( 1 - p^{5} T )( 1 + p^{5} T ) \)
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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

−15.17793374074356893957452987076, −14.74459576918435170788564610535, −13.63841284483698823339377217860, −11.88611632429736112097981534716, −11.04276095483687753955919945165, −8.395260008323433536398239261502, −7.53092184813561796448379420770, −5.03564739332827385465573965688, −3.65492227822618844801339424105, −1.89315891206400814180533219189, 1.89315891206400814180533219189, 3.65492227822618844801339424105, 5.03564739332827385465573965688, 7.53092184813561796448379420770, 8.395260008323433536398239261502, 11.04276095483687753955919945165, 11.88611632429736112097981534716, 13.63841284483698823339377217860, 14.74459576918435170788564610535, 15.17793374074356893957452987076

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