Properties

Label 2-490-1.1-c3-0-18
Degree $2$
Conductor $490$
Sign $1$
Analytic cond. $28.9109$
Root an. cond. $5.37688$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 2·2-s + 9.15·3-s + 4·4-s + 5·5-s − 18.3·6-s − 8·8-s + 56.7·9-s − 10·10-s − 35.7·11-s + 36.6·12-s + 67.4·13-s + 45.7·15-s + 16·16-s − 19.1·17-s − 113.·18-s − 86.6·19-s + 20·20-s + 71.5·22-s + 195.·23-s − 73.2·24-s + 25·25-s − 134.·26-s + 272.·27-s + 272.·29-s − 91.5·30-s + 21.6·31-s − 32·32-s + ⋯
L(s)  = 1  − 0.707·2-s + 1.76·3-s + 0.5·4-s + 0.447·5-s − 1.24·6-s − 0.353·8-s + 2.10·9-s − 0.316·10-s − 0.980·11-s + 0.880·12-s + 1.43·13-s + 0.787·15-s + 0.250·16-s − 0.273·17-s − 1.48·18-s − 1.04·19-s + 0.223·20-s + 0.693·22-s + 1.76·23-s − 0.622·24-s + 0.200·25-s − 1.01·26-s + 1.94·27-s + 1.74·29-s − 0.556·30-s + 0.125·31-s − 0.176·32-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 490 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 490 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(490\)    =    \(2 \cdot 5 \cdot 7^{2}\)
Sign: $1$
Analytic conductor: \(28.9109\)
Root analytic conductor: \(5.37688\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 490,\ (\ :3/2),\ 1)\)

Particular Values

\(L(2)\) \(\approx\) \(3.053028169\)
\(L(\frac12)\) \(\approx\) \(3.053028169\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + 2T \)
5 \( 1 - 5T \)
7 \( 1 \)
good3 \( 1 - 9.15T + 27T^{2} \)
11 \( 1 + 35.7T + 1.33e3T^{2} \)
13 \( 1 - 67.4T + 2.19e3T^{2} \)
17 \( 1 + 19.1T + 4.91e3T^{2} \)
19 \( 1 + 86.6T + 6.85e3T^{2} \)
23 \( 1 - 195.T + 1.21e4T^{2} \)
29 \( 1 - 272.T + 2.43e4T^{2} \)
31 \( 1 - 21.6T + 2.97e4T^{2} \)
37 \( 1 - 132.T + 5.06e4T^{2} \)
41 \( 1 + 67.7T + 6.89e4T^{2} \)
43 \( 1 + 107.T + 7.95e4T^{2} \)
47 \( 1 - 609.T + 1.03e5T^{2} \)
53 \( 1 + 645.T + 1.48e5T^{2} \)
59 \( 1 - 140.T + 2.05e5T^{2} \)
61 \( 1 + 834.T + 2.26e5T^{2} \)
67 \( 1 - 491.T + 3.00e5T^{2} \)
71 \( 1 + 479.T + 3.57e5T^{2} \)
73 \( 1 + 610.T + 3.89e5T^{2} \)
79 \( 1 + 153.T + 4.93e5T^{2} \)
83 \( 1 - 1.01e3T + 5.71e5T^{2} \)
89 \( 1 + 784.T + 7.04e5T^{2} \)
97 \( 1 + 227.T + 9.12e5T^{2} \)
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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

−10.41087069029220862171590628833, −9.375910133658802552316749704325, −8.664707618009847400862718333884, −8.239811246963742367394729492564, −7.20395601366924217683032560285, −6.21638757286163002046904540263, −4.58113646335205581727739674422, −3.20760750191956727077538192907, −2.45545267727539309947318897130, −1.23492185518351840387013308070, 1.23492185518351840387013308070, 2.45545267727539309947318897130, 3.20760750191956727077538192907, 4.58113646335205581727739674422, 6.21638757286163002046904540263, 7.20395601366924217683032560285, 8.239811246963742367394729492564, 8.664707618009847400862718333884, 9.375910133658802552316749704325, 10.41087069029220862171590628833

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