Properties

Label 2-56-1.1-c9-0-8
Degree $2$
Conductor $56$
Sign $1$
Analytic cond. $28.8420$
Root an. cond. $5.37047$
Motivic weight $9$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 201.·3-s + 1.70e3·5-s + 2.40e3·7-s + 2.09e4·9-s + 5.46e4·11-s − 2.83e4·13-s + 3.43e5·15-s + 2.32e5·17-s − 9.40e5·19-s + 4.83e5·21-s + 1.11e6·23-s + 9.45e5·25-s + 2.47e5·27-s − 6.85e5·29-s − 8.63e6·31-s + 1.10e7·33-s + 4.08e6·35-s + 8.24e6·37-s − 5.71e6·39-s + 9.92e6·41-s + 3.26e7·43-s + 3.56e7·45-s + 5.89e7·47-s + 5.76e6·49-s + 4.68e7·51-s − 1.78e7·53-s + 9.31e7·55-s + ⋯
L(s)  = 1  + 1.43·3-s + 1.21·5-s + 0.377·7-s + 1.06·9-s + 1.12·11-s − 0.275·13-s + 1.74·15-s + 0.675·17-s − 1.65·19-s + 0.542·21-s + 0.831·23-s + 0.483·25-s + 0.0896·27-s − 0.179·29-s − 1.67·31-s + 1.61·33-s + 0.460·35-s + 0.723·37-s − 0.395·39-s + 0.548·41-s + 1.45·43-s + 1.29·45-s + 1.76·47-s + 0.142·49-s + 0.970·51-s − 0.311·53-s + 1.37·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 56 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(10-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 56 ^{s/2} \, \Gamma_{\C}(s+9/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(56\)    =    \(2^{3} \cdot 7\)
Sign: $1$
Analytic conductor: \(28.8420\)
Root analytic conductor: \(5.37047\)
Motivic weight: \(9\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 56,\ (\ :9/2),\ 1)\)

Particular Values

\(L(5)\) \(\approx\) \(4.324610106\)
\(L(\frac12)\) \(\approx\) \(4.324610106\)
\(L(\frac{11}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
7 \( 1 - 2.40e3T \)
good3 \( 1 - 201.T + 1.96e4T^{2} \)
5 \( 1 - 1.70e3T + 1.95e6T^{2} \)
11 \( 1 - 5.46e4T + 2.35e9T^{2} \)
13 \( 1 + 2.83e4T + 1.06e10T^{2} \)
17 \( 1 - 2.32e5T + 1.18e11T^{2} \)
19 \( 1 + 9.40e5T + 3.22e11T^{2} \)
23 \( 1 - 1.11e6T + 1.80e12T^{2} \)
29 \( 1 + 6.85e5T + 1.45e13T^{2} \)
31 \( 1 + 8.63e6T + 2.64e13T^{2} \)
37 \( 1 - 8.24e6T + 1.29e14T^{2} \)
41 \( 1 - 9.92e6T + 3.27e14T^{2} \)
43 \( 1 - 3.26e7T + 5.02e14T^{2} \)
47 \( 1 - 5.89e7T + 1.11e15T^{2} \)
53 \( 1 + 1.78e7T + 3.29e15T^{2} \)
59 \( 1 - 5.88e7T + 8.66e15T^{2} \)
61 \( 1 + 1.57e8T + 1.16e16T^{2} \)
67 \( 1 + 1.98e8T + 2.72e16T^{2} \)
71 \( 1 + 1.80e8T + 4.58e16T^{2} \)
73 \( 1 + 1.57e8T + 5.88e16T^{2} \)
79 \( 1 - 5.43e7T + 1.19e17T^{2} \)
83 \( 1 - 5.71e8T + 1.86e17T^{2} \)
89 \( 1 + 5.90e8T + 3.50e17T^{2} \)
97 \( 1 + 1.14e9T + 7.60e17T^{2} \)
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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

−13.58317385085801402476329860576, −12.54989806531601116662802813011, −10.76411009453038077894338250494, −9.403613159711551110145161074814, −8.870861653097992729055624387131, −7.42423089851295923849544395524, −5.91589514745588508270350897637, −4.08156061254797022888569173525, −2.53294778499738433501055480949, −1.52239516414818728958455560929, 1.52239516414818728958455560929, 2.53294778499738433501055480949, 4.08156061254797022888569173525, 5.91589514745588508270350897637, 7.42423089851295923849544395524, 8.870861653097992729055624387131, 9.403613159711551110145161074814, 10.76411009453038077894338250494, 12.54989806531601116662802813011, 13.58317385085801402476329860576

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