Properties

Label 2-420-1.1-c1-0-1
Degree $2$
Conductor $420$
Sign $1$
Analytic cond. $3.35371$
Root an. cond. $1.83131$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 3-s + 5-s + 7-s + 9-s − 2·11-s + 4·13-s − 15-s + 2·17-s + 2·19-s − 21-s + 4·23-s + 25-s − 27-s + 6·29-s − 2·31-s + 2·33-s + 35-s + 10·37-s − 4·39-s − 10·41-s + 12·43-s + 45-s − 8·47-s + 49-s − 2·51-s − 2·55-s − 2·57-s + ⋯
L(s)  = 1  − 0.577·3-s + 0.447·5-s + 0.377·7-s + 1/3·9-s − 0.603·11-s + 1.10·13-s − 0.258·15-s + 0.485·17-s + 0.458·19-s − 0.218·21-s + 0.834·23-s + 1/5·25-s − 0.192·27-s + 1.11·29-s − 0.359·31-s + 0.348·33-s + 0.169·35-s + 1.64·37-s − 0.640·39-s − 1.56·41-s + 1.82·43-s + 0.149·45-s − 1.16·47-s + 1/7·49-s − 0.280·51-s − 0.269·55-s − 0.264·57-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 420 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 420 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(420\)    =    \(2^{2} \cdot 3 \cdot 5 \cdot 7\)
Sign: $1$
Analytic conductor: \(3.35371\)
Root analytic conductor: \(1.83131\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 420,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.339758166\)
\(L(\frac12)\) \(\approx\) \(1.339758166\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 + T \)
5 \( 1 - T \)
7 \( 1 - T \)
good11 \( 1 + 2 T + p T^{2} \)
13 \( 1 - 4 T + p T^{2} \)
17 \( 1 - 2 T + p T^{2} \)
19 \( 1 - 2 T + p T^{2} \)
23 \( 1 - 4 T + p T^{2} \)
29 \( 1 - 6 T + p T^{2} \)
31 \( 1 + 2 T + p T^{2} \)
37 \( 1 - 10 T + p T^{2} \)
41 \( 1 + 10 T + p T^{2} \)
43 \( 1 - 12 T + p T^{2} \)
47 \( 1 + 8 T + p T^{2} \)
53 \( 1 + p T^{2} \)
59 \( 1 + 8 T + p T^{2} \)
61 \( 1 + 2 T + p T^{2} \)
67 \( 1 + 12 T + p T^{2} \)
71 \( 1 + 10 T + p T^{2} \)
73 \( 1 - 4 T + p T^{2} \)
79 \( 1 + p T^{2} \)
83 \( 1 + 12 T + p T^{2} \)
89 \( 1 - 2 T + p T^{2} \)
97 \( 1 + 8 T + p T^{2} \)
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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

−11.09779642116460041629796988622, −10.46678414017466153558768634372, −9.484041131040810573980520780565, −8.444776128815454998541535245368, −7.46985318735628348223218545659, −6.31888690467862628757406619126, −5.51088025071477982042675051210, −4.51008988119235510509832391491, −3.00191084542596222591694033423, −1.28136430783138726696385588581, 1.28136430783138726696385588581, 3.00191084542596222591694033423, 4.51008988119235510509832391491, 5.51088025071477982042675051210, 6.31888690467862628757406619126, 7.46985318735628348223218545659, 8.444776128815454998541535245368, 9.484041131040810573980520780565, 10.46678414017466153558768634372, 11.09779642116460041629796988622

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