Properties

Label 2-1638-1.1-c3-0-25
Degree $2$
Conductor $1638$
Sign $1$
Analytic cond. $96.6451$
Root an. cond. $9.83082$
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 + 4·4-s + 14·5-s − 7·7-s − 8·8-s − 28·10-s − 8·11-s + 13·13-s + 14·14-s + 16·16-s + 98·17-s − 28·19-s + 56·20-s + 16·22-s + 52·23-s + 71·25-s − 26·26-s − 28·28-s + 2·29-s − 168·31-s − 32·32-s − 196·34-s − 98·35-s − 146·37-s + 56·38-s − 112·40-s + 514·41-s + ⋯
L(s)  = 1  − 0.707·2-s + 1/2·4-s + 1.25·5-s − 0.377·7-s − 0.353·8-s − 0.885·10-s − 0.219·11-s + 0.277·13-s + 0.267·14-s + 1/4·16-s + 1.39·17-s − 0.338·19-s + 0.626·20-s + 0.155·22-s + 0.471·23-s + 0.567·25-s − 0.196·26-s − 0.188·28-s + 0.0128·29-s − 0.973·31-s − 0.176·32-s − 0.988·34-s − 0.473·35-s − 0.648·37-s + 0.239·38-s − 0.442·40-s + 1.95·41-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1638 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1638 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1638\)    =    \(2 \cdot 3^{2} \cdot 7 \cdot 13\)
Sign: $1$
Analytic conductor: \(96.6451\)
Root analytic conductor: \(9.83082\)
Motivic weight: \(3\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 1638,\ (\ :3/2),\ 1)\)

Particular Values

\(L(2)\) \(\approx\) \(1.995868681\)
\(L(\frac12)\) \(\approx\) \(1.995868681\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + p T \)
3 \( 1 \)
7 \( 1 + p T \)
13 \( 1 - p T \)
good5 \( 1 - 14 T + p^{3} T^{2} \)
11 \( 1 + 8 T + p^{3} T^{2} \)
17 \( 1 - 98 T + p^{3} T^{2} \)
19 \( 1 + 28 T + p^{3} T^{2} \)
23 \( 1 - 52 T + p^{3} T^{2} \)
29 \( 1 - 2 T + p^{3} T^{2} \)
31 \( 1 + 168 T + p^{3} T^{2} \)
37 \( 1 + 146 T + p^{3} T^{2} \)
41 \( 1 - 514 T + p^{3} T^{2} \)
43 \( 1 + 236 T + p^{3} T^{2} \)
47 \( 1 - 216 T + p^{3} T^{2} \)
53 \( 1 - 66 T + p^{3} T^{2} \)
59 \( 1 - 84 T + p^{3} T^{2} \)
61 \( 1 - 446 T + p^{3} T^{2} \)
67 \( 1 - 292 T + p^{3} T^{2} \)
71 \( 1 + 100 T + p^{3} T^{2} \)
73 \( 1 - 450 T + p^{3} T^{2} \)
79 \( 1 - 392 T + p^{3} T^{2} \)
83 \( 1 - 292 T + p^{3} T^{2} \)
89 \( 1 - 402 T + p^{3} T^{2} \)
97 \( 1 - 314 T + p^{3} T^{2} \)
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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

−9.245741056713409224985669468891, −8.331442106969207161307431081783, −7.46679223201471169745491509597, −6.62863872110179988754040457478, −5.81073670433650485795916438004, −5.26857254541560132784767044082, −3.75640048238353027834013112773, −2.72428031022713652651710315545, −1.79638813216971969242447805777, −0.77008412537397593343811959902, 0.77008412537397593343811959902, 1.79638813216971969242447805777, 2.72428031022713652651710315545, 3.75640048238353027834013112773, 5.26857254541560132784767044082, 5.81073670433650485795916438004, 6.62863872110179988754040457478, 7.46679223201471169745491509597, 8.331442106969207161307431081783, 9.245741056713409224985669468891

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