Properties

Label 2-420-1.1-c1-0-2
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 + 6·11-s − 4·13-s − 15-s + 6·17-s + 2·19-s + 21-s + 25-s + 27-s + 6·29-s − 10·31-s + 6·33-s − 35-s + 2·37-s − 4·39-s − 6·41-s − 4·43-s − 45-s + 49-s + 6·51-s − 12·53-s − 6·55-s + 2·57-s + 14·61-s + ⋯
L(s)  = 1  + 0.577·3-s − 0.447·5-s + 0.377·7-s + 1/3·9-s + 1.80·11-s − 1.10·13-s − 0.258·15-s + 1.45·17-s + 0.458·19-s + 0.218·21-s + 1/5·25-s + 0.192·27-s + 1.11·29-s − 1.79·31-s + 1.04·33-s − 0.169·35-s + 0.328·37-s − 0.640·39-s − 0.937·41-s − 0.609·43-s − 0.149·45-s + 1/7·49-s + 0.840·51-s − 1.64·53-s − 0.809·55-s + 0.264·57-s + 1.79·61-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

\(L(1)\) \(\approx\) \(1.728121110\)
\(L(\frac12)\) \(\approx\) \(1.728121110\)
\(L(\frac{3}{2})\) 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 \( 1 - 6 T + p T^{2} \)
13 \( 1 + 4 T + p T^{2} \)
17 \( 1 - 6 T + p T^{2} \)
19 \( 1 - 2 T + p T^{2} \)
23 \( 1 + p T^{2} \)
29 \( 1 - 6 T + p T^{2} \)
31 \( 1 + 10 T + p T^{2} \)
37 \( 1 - 2 T + p T^{2} \)
41 \( 1 + 6 T + p T^{2} \)
43 \( 1 + 4 T + p T^{2} \)
47 \( 1 + p T^{2} \)
53 \( 1 + 12 T + p T^{2} \)
59 \( 1 + p T^{2} \)
61 \( 1 - 14 T + p T^{2} \)
67 \( 1 + 4 T + p T^{2} \)
71 \( 1 - 6 T + p T^{2} \)
73 \( 1 + 4 T + p T^{2} \)
79 \( 1 + 16 T + p T^{2} \)
83 \( 1 + 12 T + p T^{2} \)
89 \( 1 - 6 T + p T^{2} \)
97 \( 1 + 16 T + p T^{2} \)
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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

−11.41468963687341383833066905661, −10.07251256598781585775622826482, −9.402208417888729715176696972987, −8.449326916407346032985487608845, −7.52869725497309556858557046810, −6.74469025095782946469111005872, −5.31154804232921291759313294728, −4.14525984671534409011710586104, −3.16591912200898921503339464095, −1.47447091118007102923277723016, 1.47447091118007102923277723016, 3.16591912200898921503339464095, 4.14525984671534409011710586104, 5.31154804232921291759313294728, 6.74469025095782946469111005872, 7.52869725497309556858557046810, 8.449326916407346032985487608845, 9.402208417888729715176696972987, 10.07251256598781585775622826482, 11.41468963687341383833066905661

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