Properties

Label 2-1680-140.139-c1-0-1
Degree $2$
Conductor $1680$
Sign $-0.655 + 0.754i$
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  + i·3-s + (−1.58 + 1.57i)5-s + (2.37 + 1.15i)7-s − 9-s − 1.26i·11-s − 6.82·13-s + (−1.57 − 1.58i)15-s + 1.90·17-s − 2.53·19-s + (−1.15 + 2.37i)21-s − 5.50·23-s + (0.0146 − 4.99i)25-s i·27-s + 6.49·29-s − 5.78·31-s + ⋯
L(s)  = 1  + 0.577i·3-s + (−0.708 + 0.706i)5-s + (0.899 + 0.436i)7-s − 0.333·9-s − 0.380i·11-s − 1.89·13-s + (−0.407 − 0.408i)15-s + 0.461·17-s − 0.581·19-s + (−0.252 + 0.519i)21-s − 1.14·23-s + (0.00292 − 0.999i)25-s − 0.192i·27-s + 1.20·29-s − 1.03·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1680 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.655 + 0.754i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1680 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.655 + 0.754i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1680\)    =    \(2^{4} \cdot 3 \cdot 5 \cdot 7\)
Sign: $-0.655 + 0.754i$
Analytic conductor: \(13.4148\)
Root analytic conductor: \(3.66263\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1680} (559, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1680,\ (\ :1/2),\ -0.655 + 0.754i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.1057992978\)
\(L(\frac12)\) \(\approx\) \(0.1057992978\)
\(L(\frac{3}{2})\) 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 \( 1 - iT \)
5 \( 1 + (1.58 - 1.57i)T \)
7 \( 1 + (-2.37 - 1.15i)T \)
good11 \( 1 + 1.26iT - 11T^{2} \)
13 \( 1 + 6.82T + 13T^{2} \)
17 \( 1 - 1.90T + 17T^{2} \)
19 \( 1 + 2.53T + 19T^{2} \)
23 \( 1 + 5.50T + 23T^{2} \)
29 \( 1 - 6.49T + 29T^{2} \)
31 \( 1 + 5.78T + 31T^{2} \)
37 \( 1 - 6.24iT - 37T^{2} \)
41 \( 1 + 11.5iT - 41T^{2} \)
43 \( 1 + 7.55T + 43T^{2} \)
47 \( 1 + 0.158iT - 47T^{2} \)
53 \( 1 + 0.469iT - 53T^{2} \)
59 \( 1 - 6.99T + 59T^{2} \)
61 \( 1 - 3.90iT - 61T^{2} \)
67 \( 1 + 10.7T + 67T^{2} \)
71 \( 1 + 3.31iT - 71T^{2} \)
73 \( 1 + 0.691T + 73T^{2} \)
79 \( 1 + 10.1iT - 79T^{2} \)
83 \( 1 - 83T^{2} \)
89 \( 1 - 4.26iT - 89T^{2} \)
97 \( 1 + 2.82T + 97T^{2} \)
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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

−10.12587039982624868714296167946, −8.994368488571984916291865263469, −8.216542635011996368455367120267, −7.60483252384289122714955033797, −6.76243141348932474680453293300, −5.65186454462631658344313821157, −4.85109327092215507299567407531, −4.09145891165338932873433328731, −3.00611326771041623739908871142, −2.11187974283616667447774121616, 0.03895517138488961371084070100, 1.45425227872908075004881852295, 2.50225215132972962051692459206, 3.94260465540199075139254026633, 4.74383256553682853937925713006, 5.34237670856327526171302143849, 6.64702731585397901152138462301, 7.52346012007628812831788036490, 7.87225479923650688140574286508, 8.623087230630682278857378380008

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