Properties

Label 2-20-20.19-c10-0-4
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

\(L(\frac{11}{2})\) \(\approx\) \(0.1784159426\)
\(L(\frac12)\) \(\approx\) \(0.1784159426\)
\(L(6)\) 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

−16.31684264289544593287696268868, −15.32351672051079809947043258019, −12.73139764353109946293858398696, −11.69292182417014220521314818307, −10.47763374456287487335340679971, −9.074917975786792076033553722316, −7.21362225182099016735773539887, −6.03734434051239795417540795063, −3.26780968355619251692508410097, −0.36640035419485094484829045350, 0.36640035419485094484829045350, 3.26780968355619251692508410097, 6.03734434051239795417540795063, 7.21362225182099016735773539887, 9.074917975786792076033553722316, 10.47763374456287487335340679971, 11.69292182417014220521314818307, 12.73139764353109946293858398696, 15.32351672051079809947043258019, 16.31684264289544593287696268868

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