Properties

Label 2-1680-105.104-c1-0-2
Degree $2$
Conductor $1680$
Sign $-0.645 - 0.763i$
Analytic cond. $13.4148$
Root an. cond. $3.66263$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (−1.32 + 1.11i)3-s − 2.23i·5-s − 2.64·7-s + (0.5 − 2.95i)9-s − 5.91i·11-s − 2.64·13-s + (2.50 + 2.95i)15-s + 2.23i·17-s + (3.50 − 2.95i)21-s − 5.00·25-s + (2.64 + 4.47i)27-s + 5.91i·29-s + (6.61 + 7.82i)33-s + 5.91i·35-s + (3.50 − 2.95i)39-s + ⋯
L(s)  = 1  + (−0.763 + 0.645i)3-s − 0.999i·5-s − 0.999·7-s + (0.166 − 0.986i)9-s − 1.78i·11-s − 0.733·13-s + (0.645 + 0.763i)15-s + 0.542i·17-s + (0.763 − 0.645i)21-s − 1.00·25-s + (0.509 + 0.860i)27-s + 1.09i·29-s + (1.15 + 1.36i)33-s + 0.999i·35-s + (0.560 − 0.473i)39-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1680 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.645 - 0.763i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1680 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.645 - 0.763i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1680\)    =    \(2^{4} \cdot 3 \cdot 5 \cdot 7\)
Sign: $-0.645 - 0.763i$
Analytic conductor: \(13.4148\)
Root analytic conductor: \(3.66263\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1680} (209, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1680,\ (\ :1/2),\ -0.645 - 0.763i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.1616255540\)
\(L(\frac12)\) \(\approx\) \(0.1616255540\)
\(L(\frac{3}{2})\) 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 \( 1 + (1.32 - 1.11i)T \)
5 \( 1 + 2.23iT \)
7 \( 1 + 2.64T \)
good11 \( 1 + 5.91iT - 11T^{2} \)
13 \( 1 + 2.64T + 13T^{2} \)
17 \( 1 - 2.23iT - 17T^{2} \)
19 \( 1 - 19T^{2} \)
23 \( 1 + 23T^{2} \)
29 \( 1 - 5.91iT - 29T^{2} \)
31 \( 1 - 31T^{2} \)
37 \( 1 - 37T^{2} \)
41 \( 1 + 41T^{2} \)
43 \( 1 - 43T^{2} \)
47 \( 1 - 11.1iT - 47T^{2} \)
53 \( 1 + 53T^{2} \)
59 \( 1 + 59T^{2} \)
61 \( 1 - 61T^{2} \)
67 \( 1 - 67T^{2} \)
71 \( 1 - 11.8iT - 71T^{2} \)
73 \( 1 + 10.5T + 73T^{2} \)
79 \( 1 - T + 79T^{2} \)
83 \( 1 + 8.94iT - 83T^{2} \)
89 \( 1 + 89T^{2} \)
97 \( 1 + 18.5T + 97T^{2} \)
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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

−9.590194101128281542752228077783, −8.975812006353937238102312862966, −8.317861108122142254333921278450, −7.11094526708517149361468758333, −6.07152747577467004147520299713, −5.69808629692375829072147900302, −4.75683133403135700089606486296, −3.82129032437384323329234736002, −3.00067098886229579902133289545, −1.06095138631415607151277542737, 0.07773403085298341855658311822, 2.00229986031107690271895440234, 2.73555401149597140367336528649, 4.07953120959303464255623529220, 5.05159281374872338844494724729, 6.02149240353965014746300686090, 6.86236835312413898664527206301, 7.15708660608576120217913140246, 7.895082959824412425377174337841, 9.367308150241458349083125084667

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