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Properties

Label 2-1680-105.104-c1-0-11
Degree $2$
Conductor $1680$
Sign $-0.791 - 0.610i$
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  + (0.773 + 1.54i)3-s + (−0.194 − 2.22i)5-s + (0.942 + 2.47i)7-s + (−1.80 + 2.39i)9-s − 1.45i·11-s − 4.42·13-s + (3.30 − 2.02i)15-s + 0.440i·17-s + 6.54i·19-s + (−3.10 + 3.37i)21-s − 2.43·23-s + (−4.92 + 0.864i)25-s + (−5.10 − 0.944i)27-s + 4.30i·29-s − 2.86i·31-s + ⋯
L(s)  = 1  + (0.446 + 0.894i)3-s + (−0.0867 − 0.996i)5-s + (0.356 + 0.934i)7-s + (−0.601 + 0.798i)9-s − 0.438i·11-s − 1.22·13-s + (0.852 − 0.522i)15-s + 0.106i·17-s + 1.50i·19-s + (−0.677 + 0.735i)21-s − 0.508·23-s + (−0.984 + 0.172i)25-s + (−0.983 − 0.181i)27-s + 0.800i·29-s − 0.514i·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1680 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.791 - 0.610i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1680 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.791 - 0.610i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1680\)    =    \(2^{4} \cdot 3 \cdot 5 \cdot 7\)
Sign: $-0.791 - 0.610i$
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: \((2,\ 1680,\ (\ :1/2),\ -0.791 - 0.610i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.181476555\)
\(L(\frac12)\) \(\approx\) \(1.181476555\)
\(L(\frac{3}{2})\) 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 \( 1 + (-0.773 - 1.54i)T \)
5 \( 1 + (0.194 + 2.22i)T \)
7 \( 1 + (-0.942 - 2.47i)T \)
good11 \( 1 + 1.45iT - 11T^{2} \)
13 \( 1 + 4.42T + 13T^{2} \)
17 \( 1 - 0.440iT - 17T^{2} \)
19 \( 1 - 6.54iT - 19T^{2} \)
23 \( 1 + 2.43T + 23T^{2} \)
29 \( 1 - 4.30iT - 29T^{2} \)
31 \( 1 + 2.86iT - 31T^{2} \)
37 \( 1 - 9.10iT - 37T^{2} \)
41 \( 1 - 4.55T + 41T^{2} \)
43 \( 1 - 8.57iT - 43T^{2} \)
47 \( 1 + 6.31iT - 47T^{2} \)
53 \( 1 + 9.37T + 53T^{2} \)
59 \( 1 - 8.33T + 59T^{2} \)
61 \( 1 + 7.14iT - 61T^{2} \)
67 \( 1 - 11.3iT - 67T^{2} \)
71 \( 1 - 1.12iT - 71T^{2} \)
73 \( 1 + 11.2T + 73T^{2} \)
79 \( 1 - 6.83T + 79T^{2} \)
83 \( 1 - 5.75iT - 83T^{2} \)
89 \( 1 - 11.7T + 89T^{2} \)
97 \( 1 + 6.27T + 97T^{2} \)
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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

−9.682086672818546251993059173079, −8.854736312791697687505418642813, −8.212093970370316029368552488061, −7.74168124504511121544584204869, −6.15414221508062607615496136331, −5.35937542773373816840027306328, −4.79387648056965496981469386130, −3.88259123145776405366297494191, −2.79070053470533634812297037025, −1.70833913338761012712937587012, 0.39529784803267335568236197475, 2.02973790113677828102215467136, 2.74474677079682068287823295377, 3.84412819345810545009434863852, 4.82125740527703747812090554903, 6.06967029747568364803384293395, 6.99335531354812441864969318134, 7.34301329511694368190534458265, 7.893316198272895129761505340812, 9.058839837935931216803134363665

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