Properties

Label 2-20e2-1.1-c7-0-16
Degree $2$
Conductor $400$
Sign $1$
Analytic cond. $124.954$
Root an. cond. $11.1782$
Motivic weight $7$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 44·3-s − 1.22e3·7-s − 251·9-s + 3.16e3·11-s − 6.11e3·13-s + 1.62e4·17-s + 5.47e3·19-s − 5.38e4·21-s + 1.57e3·23-s − 1.07e5·27-s + 1.22e5·29-s − 2.51e5·31-s + 1.39e5·33-s + 5.23e4·37-s − 2.69e5·39-s − 3.19e5·41-s + 7.10e5·43-s + 2.84e5·47-s + 6.74e5·49-s + 7.15e5·51-s − 2.96e5·53-s + 2.40e5·57-s + 8.97e5·59-s − 8.84e5·61-s + 3.07e5·63-s + 4.65e6·67-s + 6.93e4·69-s + ⋯
L(s)  = 1  + 0.940·3-s − 1.34·7-s − 0.114·9-s + 0.716·11-s − 0.772·13-s + 0.803·17-s + 0.183·19-s − 1.26·21-s + 0.0270·23-s − 1.04·27-s + 0.935·29-s − 1.51·31-s + 0.674·33-s + 0.169·37-s − 0.726·39-s − 0.723·41-s + 1.36·43-s + 0.399·47-s + 0.819·49-s + 0.755·51-s − 0.273·53-s + 0.172·57-s + 0.568·59-s − 0.499·61-s + 0.154·63-s + 1.89·67-s + 0.0254·69-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 400 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(8-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 400 ^{s/2} \, \Gamma_{\C}(s+7/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(400\)    =    \(2^{4} \cdot 5^{2}\)
Sign: $1$
Analytic conductor: \(124.954\)
Root analytic conductor: \(11.1782\)
Motivic weight: \(7\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 400,\ (\ :7/2),\ 1)\)

Particular Values

\(L(4)\) \(\approx\) \(2.268745935\)
\(L(\frac12)\) \(\approx\) \(2.268745935\)
\(L(\frac{9}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
5 \( 1 \)
good3 \( 1 - 44 T + p^{7} T^{2} \)
7 \( 1 + 1224 T + p^{7} T^{2} \)
11 \( 1 - 3164 T + p^{7} T^{2} \)
13 \( 1 + 6118 T + p^{7} T^{2} \)
17 \( 1 - 16270 T + p^{7} T^{2} \)
19 \( 1 - 5476 T + p^{7} T^{2} \)
23 \( 1 - 1576 T + p^{7} T^{2} \)
29 \( 1 - 122838 T + p^{7} T^{2} \)
31 \( 1 + 251360 T + p^{7} T^{2} \)
37 \( 1 - 52338 T + p^{7} T^{2} \)
41 \( 1 + 319398 T + p^{7} T^{2} \)
43 \( 1 - 710788 T + p^{7} T^{2} \)
47 \( 1 - 284112 T + p^{7} T^{2} \)
53 \( 1 + 296062 T + p^{7} T^{2} \)
59 \( 1 - 897548 T + p^{7} T^{2} \)
61 \( 1 + 884810 T + p^{7} T^{2} \)
67 \( 1 - 4659692 T + p^{7} T^{2} \)
71 \( 1 - 2710792 T + p^{7} T^{2} \)
73 \( 1 - 5670854 T + p^{7} T^{2} \)
79 \( 1 - 5124176 T + p^{7} T^{2} \)
83 \( 1 + 1563556 T + p^{7} T^{2} \)
89 \( 1 - 11605674 T + p^{7} T^{2} \)
97 \( 1 + 10931618 T + p^{7} T^{2} \)
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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

−9.633188788548933368025901494049, −9.425566346211939930311139296730, −8.339825571666811184245178678640, −7.35147747238879489019783346162, −6.45528686364240946033345828722, −5.37161197664196074238405066595, −3.84318565936206031735157823709, −3.16129072067612101295088744418, −2.18804796101751560466542445313, −0.63916839610666779681167241819, 0.63916839610666779681167241819, 2.18804796101751560466542445313, 3.16129072067612101295088744418, 3.84318565936206031735157823709, 5.37161197664196074238405066595, 6.45528686364240946033345828722, 7.35147747238879489019783346162, 8.339825571666811184245178678640, 9.425566346211939930311139296730, 9.633188788548933368025901494049

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