Properties

Label 2-7-1.1-c17-0-3
Degree $2$
Conductor $7$
Sign $-1$
Analytic cond. $12.8255$
Root an. cond. $3.58127$
Motivic weight $17$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 404.·2-s − 1.44e4·3-s + 3.28e4·4-s + 1.27e6·5-s + 5.85e6·6-s − 5.76e6·7-s + 3.97e7·8-s + 7.98e7·9-s − 5.17e8·10-s + 9.48e8·11-s − 4.74e8·12-s − 5.26e9·13-s + 2.33e9·14-s − 1.84e10·15-s − 2.04e10·16-s + 1.14e10·17-s − 3.23e10·18-s + 4.84e10·19-s + 4.19e10·20-s + 8.33e10·21-s − 3.84e11·22-s − 2.59e11·23-s − 5.74e11·24-s + 8.68e11·25-s + 2.13e12·26-s + 7.11e11·27-s − 1.89e11·28-s + ⋯
L(s)  = 1  − 1.11·2-s − 1.27·3-s + 0.250·4-s + 1.46·5-s + 1.42·6-s − 0.377·7-s + 0.838·8-s + 0.618·9-s − 1.63·10-s + 1.33·11-s − 0.318·12-s − 1.78·13-s + 0.422·14-s − 1.86·15-s − 1.18·16-s + 0.397·17-s − 0.691·18-s + 0.654·19-s + 0.366·20-s + 0.480·21-s − 1.49·22-s − 0.690·23-s − 1.06·24-s + 1.13·25-s + 2.00·26-s + 0.485·27-s − 0.0947·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 7 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(18-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 7 ^{s/2} \, \Gamma_{\C}(s+17/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(7\)
Sign: $-1$
Analytic conductor: \(12.8255\)
Root analytic conductor: \(3.58127\)
Motivic weight: \(17\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 7,\ (\ :17/2),\ -1)\)

Particular Values

\(L(9)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{19}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad7 \( 1 + 5.76e6T \)
good2 \( 1 + 404.T + 1.31e5T^{2} \)
3 \( 1 + 1.44e4T + 1.29e8T^{2} \)
5 \( 1 - 1.27e6T + 7.62e11T^{2} \)
11 \( 1 - 9.48e8T + 5.05e17T^{2} \)
13 \( 1 + 5.26e9T + 8.65e18T^{2} \)
17 \( 1 - 1.14e10T + 8.27e20T^{2} \)
19 \( 1 - 4.84e10T + 5.48e21T^{2} \)
23 \( 1 + 2.59e11T + 1.41e23T^{2} \)
29 \( 1 + 5.77e11T + 7.25e24T^{2} \)
31 \( 1 + 3.05e12T + 2.25e25T^{2} \)
37 \( 1 + 3.74e13T + 4.56e26T^{2} \)
41 \( 1 + 6.58e13T + 2.61e27T^{2} \)
43 \( 1 + 5.34e13T + 5.87e27T^{2} \)
47 \( 1 - 1.05e13T + 2.66e28T^{2} \)
53 \( 1 - 5.93e13T + 2.05e29T^{2} \)
59 \( 1 - 8.69e13T + 1.27e30T^{2} \)
61 \( 1 + 2.53e15T + 2.24e30T^{2} \)
67 \( 1 + 9.46e14T + 1.10e31T^{2} \)
71 \( 1 - 4.24e15T + 2.96e31T^{2} \)
73 \( 1 - 3.23e15T + 4.74e31T^{2} \)
79 \( 1 - 1.73e16T + 1.81e32T^{2} \)
83 \( 1 + 2.79e16T + 4.21e32T^{2} \)
89 \( 1 + 3.32e16T + 1.37e33T^{2} \)
97 \( 1 + 9.03e16T + 5.95e33T^{2} \)
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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

−17.14081394877282172458351003548, −16.82999924008839660226768320723, −14.03979660254431935265374856065, −12.09112476852973258962726564494, −10.23497381352073843148526902452, −9.389885379481557048368265100928, −6.81346863017482316365978394549, −5.25566293256639367013452505876, −1.59257517371165018500067054973, 0, 1.59257517371165018500067054973, 5.25566293256639367013452505876, 6.81346863017482316365978394549, 9.389885379481557048368265100928, 10.23497381352073843148526902452, 12.09112476852973258962726564494, 14.03979660254431935265374856065, 16.82999924008839660226768320723, 17.14081394877282172458351003548

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