Properties

Label 2-490-1.1-c3-0-6
Degree $2$
Conductor $490$
Sign $1$
Analytic cond. $28.9109$
Root an. cond. $5.37688$
Motivic weight $3$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2·2-s − 5·3-s + 4·4-s − 5·5-s − 10·6-s + 8·8-s − 2·9-s − 10·10-s − 11-s − 20·12-s − 7·13-s + 25·15-s + 16·16-s + 51·17-s − 4·18-s − 30·19-s − 20·20-s − 2·22-s − 50·23-s − 40·24-s + 25·25-s − 14·26-s + 145·27-s + 79·29-s + 50·30-s + 212·31-s + 32·32-s + ⋯
L(s)  = 1  + 0.707·2-s − 0.962·3-s + 1/2·4-s − 0.447·5-s − 0.680·6-s + 0.353·8-s − 0.0740·9-s − 0.316·10-s − 0.0274·11-s − 0.481·12-s − 0.149·13-s + 0.430·15-s + 1/4·16-s + 0.727·17-s − 0.0523·18-s − 0.362·19-s − 0.223·20-s − 0.0193·22-s − 0.453·23-s − 0.340·24-s + 1/5·25-s − 0.105·26-s + 1.03·27-s + 0.505·29-s + 0.304·30-s + 1.22·31-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: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 490,\ (\ :3/2),\ 1)\)

Particular Values

\(L(2)\) \(\approx\) \(1.784266498\)
\(L(\frac12)\) \(\approx\) \(1.784266498\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - p T \)
5 \( 1 + p T \)
7 \( 1 \)
good3 \( 1 + 5 T + p^{3} T^{2} \)
11 \( 1 + T + p^{3} T^{2} \)
13 \( 1 + 7 T + p^{3} T^{2} \)
17 \( 1 - 3 p T + p^{3} T^{2} \)
19 \( 1 + 30 T + p^{3} T^{2} \)
23 \( 1 + 50 T + p^{3} T^{2} \)
29 \( 1 - 79 T + p^{3} T^{2} \)
31 \( 1 - 212 T + p^{3} T^{2} \)
37 \( 1 + 190 T + p^{3} T^{2} \)
41 \( 1 - 308 T + p^{3} T^{2} \)
43 \( 1 - 422 T + p^{3} T^{2} \)
47 \( 1 + 121 T + p^{3} T^{2} \)
53 \( 1 - 664 T + p^{3} T^{2} \)
59 \( 1 + 628 T + p^{3} T^{2} \)
61 \( 1 - 684 T + p^{3} T^{2} \)
67 \( 1 - 1056 T + p^{3} T^{2} \)
71 \( 1 - 744 T + p^{3} T^{2} \)
73 \( 1 + 726 T + p^{3} T^{2} \)
79 \( 1 + 407 T + p^{3} T^{2} \)
83 \( 1 + 644 T + p^{3} T^{2} \)
89 \( 1 - 880 T + p^{3} T^{2} \)
97 \( 1 - 1351 T + p^{3} T^{2} \)
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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

−10.77944194281250335772699263873, −10.01405394111666189071495044286, −8.621920745436298928944016970627, −7.63282277933799516550925006038, −6.59232137657742699341179605766, −5.78754104939781942689534209060, −4.92152430829587232443755231375, −3.91020183163561642837105060176, −2.60631402790608139238028349711, −0.78436153481825526182401858011, 0.78436153481825526182401858011, 2.60631402790608139238028349711, 3.91020183163561642837105060176, 4.92152430829587232443755231375, 5.78754104939781942689534209060, 6.59232137657742699341179605766, 7.63282277933799516550925006038, 8.621920745436298928944016970627, 10.01405394111666189071495044286, 10.77944194281250335772699263873

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