Properties

Label 2-1680-1.1-c3-0-68
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 $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3·3-s + 5·5-s − 7·7-s + 9·9-s + 36·11-s − 34·13-s + 15·15-s − 6·17-s + 28·19-s − 21·21-s − 192·23-s + 25·25-s + 27·27-s − 186·29-s − 176·31-s + 108·33-s − 35·35-s − 418·37-s − 102·39-s − 30·41-s + 412·43-s + 45·45-s + 432·47-s + 49·49-s − 18·51-s − 306·53-s + 180·55-s + ⋯
L(s)  = 1  + 0.577·3-s + 0.447·5-s − 0.377·7-s + 1/3·9-s + 0.986·11-s − 0.725·13-s + 0.258·15-s − 0.0856·17-s + 0.338·19-s − 0.218·21-s − 1.74·23-s + 1/5·25-s + 0.192·27-s − 1.19·29-s − 1.01·31-s + 0.569·33-s − 0.169·35-s − 1.85·37-s − 0.418·39-s − 0.114·41-s + 1.46·43-s + 0.149·45-s + 1.34·47-s + 1/7·49-s − 0.0494·51-s − 0.793·53-s + 0.441·55-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: \(1\)
Selberg data: \((2,\ 1680,\ (\ :3/2),\ -1)\)

Particular Values

\(L(2)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{5}{2})\) 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 \( 1 - 36 T + p^{3} T^{2} \)
13 \( 1 + 34 T + p^{3} T^{2} \)
17 \( 1 + 6 T + p^{3} T^{2} \)
19 \( 1 - 28 T + p^{3} T^{2} \)
23 \( 1 + 192 T + p^{3} T^{2} \)
29 \( 1 + 186 T + p^{3} T^{2} \)
31 \( 1 + 176 T + p^{3} T^{2} \)
37 \( 1 + 418 T + p^{3} T^{2} \)
41 \( 1 + 30 T + p^{3} T^{2} \)
43 \( 1 - 412 T + p^{3} T^{2} \)
47 \( 1 - 432 T + p^{3} T^{2} \)
53 \( 1 + 306 T + p^{3} T^{2} \)
59 \( 1 - 564 T + p^{3} T^{2} \)
61 \( 1 + 322 T + p^{3} T^{2} \)
67 \( 1 + 716 T + p^{3} T^{2} \)
71 \( 1 - 48 T + p^{3} T^{2} \)
73 \( 1 + 1078 T + p^{3} T^{2} \)
79 \( 1 - 496 T + p^{3} T^{2} \)
83 \( 1 + 468 T + p^{3} T^{2} \)
89 \( 1 - 1314 T + p^{3} T^{2} \)
97 \( 1 + 1438 T + p^{3} T^{2} \)
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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

−8.877419756264114280107447240699, −7.68402058540767292432463299405, −7.13358370289385332060984709067, −6.16276256619934687169032301559, −5.42112933145253168721403330339, −4.19819467750920188469456903929, −3.53076618434792396319063927122, −2.35957722486011567083083883592, −1.54436099878360210227739416771, 0, 1.54436099878360210227739416771, 2.35957722486011567083083883592, 3.53076618434792396319063927122, 4.19819467750920188469456903929, 5.42112933145253168721403330339, 6.16276256619934687169032301559, 7.13358370289385332060984709067, 7.68402058540767292432463299405, 8.877419756264114280107447240699

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