Properties

Label 2-1680-1.1-c3-0-9
Degree $2$
Conductor $1680$
Sign $1$
Analytic cond. $99.1232$
Root an. cond. $9.95606$
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  − 3·3-s + 5·5-s + 7·7-s + 9·9-s − 22·11-s − 44·13-s − 15·15-s − 110·17-s + 22·19-s − 21·21-s + 36·23-s + 25·25-s − 27·27-s − 122·29-s + 186·31-s + 66·33-s + 35·35-s + 306·37-s + 132·39-s − 330·41-s − 20·43-s + 45·45-s + 64·47-s + 49·49-s + 330·51-s + 504·53-s − 110·55-s + ⋯
L(s)  = 1  − 0.577·3-s + 0.447·5-s + 0.377·7-s + 1/3·9-s − 0.603·11-s − 0.938·13-s − 0.258·15-s − 1.56·17-s + 0.265·19-s − 0.218·21-s + 0.326·23-s + 1/5·25-s − 0.192·27-s − 0.781·29-s + 1.07·31-s + 0.348·33-s + 0.169·35-s + 1.35·37-s + 0.541·39-s − 1.25·41-s − 0.0709·43-s + 0.149·45-s + 0.198·47-s + 1/7·49-s + 0.906·51-s + 1.30·53-s − 0.269·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1680 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1680 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1680\)    =    \(2^{4} \cdot 3 \cdot 5 \cdot 7\)
Sign: $1$
Analytic conductor: \(99.1232\)
Root analytic conductor: \(9.95606\)
Motivic weight: \(3\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 1680,\ (\ :3/2),\ 1)\)

Particular Values

\(L(2)\) \(\approx\) \(1.435948214\)
\(L(\frac12)\) \(\approx\) \(1.435948214\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 + p T \)
5 \( 1 - p T \)
7 \( 1 - p T \)
good11 \( 1 + 2 p T + p^{3} T^{2} \)
13 \( 1 + 44 T + p^{3} T^{2} \)
17 \( 1 + 110 T + p^{3} T^{2} \)
19 \( 1 - 22 T + p^{3} T^{2} \)
23 \( 1 - 36 T + p^{3} T^{2} \)
29 \( 1 + 122 T + p^{3} T^{2} \)
31 \( 1 - 6 p T + p^{3} T^{2} \)
37 \( 1 - 306 T + p^{3} T^{2} \)
41 \( 1 + 330 T + p^{3} T^{2} \)
43 \( 1 + 20 T + p^{3} T^{2} \)
47 \( 1 - 64 T + p^{3} T^{2} \)
53 \( 1 - 504 T + p^{3} T^{2} \)
59 \( 1 - 560 T + p^{3} T^{2} \)
61 \( 1 + 418 T + p^{3} T^{2} \)
67 \( 1 - 452 T + p^{3} T^{2} \)
71 \( 1 - 146 T + p^{3} T^{2} \)
73 \( 1 + 236 T + p^{3} T^{2} \)
79 \( 1 + 536 T + p^{3} T^{2} \)
83 \( 1 - 92 T + p^{3} T^{2} \)
89 \( 1 + 574 T + p^{3} T^{2} \)
97 \( 1 - 184 T + p^{3} T^{2} \)
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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

−9.049951824571727620459305467748, −8.189782623832962638770063802368, −7.26713209556370263704708585391, −6.61427207096965207835012797895, −5.65046170029937008935989659359, −4.94038684507315154355779077149, −4.23161088101228542227330223250, −2.75364579503596591282805713007, −1.93984768967473906031030659086, −0.57379796557240756967202464938, 0.57379796557240756967202464938, 1.93984768967473906031030659086, 2.75364579503596591282805713007, 4.23161088101228542227330223250, 4.94038684507315154355779077149, 5.65046170029937008935989659359, 6.61427207096965207835012797895, 7.26713209556370263704708585391, 8.189782623832962638770063802368, 9.049951824571727620459305467748

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