Properties

Label 2-2e3-1.1-c15-0-1
Degree $2$
Conductor $8$
Sign $1$
Analytic cond. $11.4154$
Root an. cond. $3.37868$
Motivic weight $15$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2.83e3·3-s + 1.05e5·5-s + 5.01e5·7-s − 6.29e6·9-s + 9.46e7·11-s + 2.61e8·13-s + 2.98e8·15-s + 2.42e9·17-s + 1.15e9·19-s + 1.42e9·21-s − 2.23e10·23-s − 1.94e10·25-s − 5.85e10·27-s + 1.12e11·29-s − 1.67e11·31-s + 2.68e11·33-s + 5.28e10·35-s + 7.53e11·37-s + 7.41e11·39-s − 1.42e12·41-s − 1.58e12·43-s − 6.63e11·45-s − 1.13e12·47-s − 4.49e12·49-s + 6.88e12·51-s − 5.07e12·53-s + 9.97e12·55-s + ⋯
L(s)  = 1  + 0.749·3-s + 0.602·5-s + 0.230·7-s − 0.438·9-s + 1.46·11-s + 1.15·13-s + 0.451·15-s + 1.43·17-s + 0.296·19-s + 0.172·21-s − 1.37·23-s − 0.636·25-s − 1.07·27-s + 1.21·29-s − 1.09·31-s + 1.09·33-s + 0.138·35-s + 1.30·37-s + 0.865·39-s − 1.14·41-s − 0.889·43-s − 0.264·45-s − 0.325·47-s − 0.946·49-s + 1.07·51-s − 0.593·53-s + 0.883·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 8 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(16-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 8 ^{s/2} \, \Gamma_{\C}(s+15/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(8\)    =    \(2^{3}\)
Sign: $1$
Analytic conductor: \(11.4154\)
Root analytic conductor: \(3.37868\)
Motivic weight: \(15\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 8,\ (\ :15/2),\ 1)\)

Particular Values

\(L(8)\) \(\approx\) \(2.632571302\)
\(L(\frac12)\) \(\approx\) \(2.632571302\)
\(L(\frac{17}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
good3 \( 1 - 2.83e3T + 1.43e7T^{2} \)
5 \( 1 - 1.05e5T + 3.05e10T^{2} \)
7 \( 1 - 5.01e5T + 4.74e12T^{2} \)
11 \( 1 - 9.46e7T + 4.17e15T^{2} \)
13 \( 1 - 2.61e8T + 5.11e16T^{2} \)
17 \( 1 - 2.42e9T + 2.86e18T^{2} \)
19 \( 1 - 1.15e9T + 1.51e19T^{2} \)
23 \( 1 + 2.23e10T + 2.66e20T^{2} \)
29 \( 1 - 1.12e11T + 8.62e21T^{2} \)
31 \( 1 + 1.67e11T + 2.34e22T^{2} \)
37 \( 1 - 7.53e11T + 3.33e23T^{2} \)
41 \( 1 + 1.42e12T + 1.55e24T^{2} \)
43 \( 1 + 1.58e12T + 3.17e24T^{2} \)
47 \( 1 + 1.13e12T + 1.20e25T^{2} \)
53 \( 1 + 5.07e12T + 7.31e25T^{2} \)
59 \( 1 - 1.15e13T + 3.65e26T^{2} \)
61 \( 1 - 1.56e13T + 6.02e26T^{2} \)
67 \( 1 + 7.82e13T + 2.46e27T^{2} \)
71 \( 1 + 6.47e13T + 5.87e27T^{2} \)
73 \( 1 - 7.33e13T + 8.90e27T^{2} \)
79 \( 1 - 1.87e14T + 2.91e28T^{2} \)
83 \( 1 + 4.39e13T + 6.11e28T^{2} \)
89 \( 1 + 5.90e13T + 1.74e29T^{2} \)
97 \( 1 + 1.06e15T + 6.33e29T^{2} \)
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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

−17.98743405112429646909491601924, −16.53119729755688797946361142611, −14.58320711481446394725029693025, −13.75529720571998686522206014545, −11.72765672763874089319535058503, −9.674250391342427018888484476418, −8.262384828822491896994491633370, −6.03372693114748030212806869321, −3.54756491121400270853524861383, −1.54117036825025129883850161570, 1.54117036825025129883850161570, 3.54756491121400270853524861383, 6.03372693114748030212806869321, 8.262384828822491896994491633370, 9.674250391342427018888484476418, 11.72765672763874089319535058503, 13.75529720571998686522206014545, 14.58320711481446394725029693025, 16.53119729755688797946361142611, 17.98743405112429646909491601924

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