Properties

Label 2-684-19.18-c2-0-8
Degree $2$
Conductor $684$
Sign $1$
Analytic cond. $18.6376$
Root an. cond. $4.31713$
Motivic weight $2$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 9.97·5-s − 13.8·7-s − 8.29·11-s + 28.2·17-s + 19·19-s + 34.8·23-s + 74.4·25-s − 137.·35-s + 53.8·43-s − 36.6·47-s + 142.·49-s − 82.7·55-s − 5.12·61-s − 112.·73-s + 114.·77-s + 139.·83-s + 281.·85-s + 189.·95-s − 174.·101-s + 347.·115-s − 390.·119-s + ⋯
L(s)  = 1  + 1.99·5-s − 1.97·7-s − 0.754·11-s + 1.66·17-s + 19-s + 1.51·23-s + 2.97·25-s − 3.93·35-s + 1.25·43-s − 0.779·47-s + 2.90·49-s − 1.50·55-s − 0.0839·61-s − 1.53·73-s + 1.49·77-s + 1.68·83-s + 3.31·85-s + 1.99·95-s − 1.72·101-s + 3.02·115-s − 3.28·119-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 684 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 684 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(684\)    =    \(2^{2} \cdot 3^{2} \cdot 19\)
Sign: $1$
Analytic conductor: \(18.6376\)
Root analytic conductor: \(4.31713\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{684} (37, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 684,\ (\ :1),\ 1)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(2.213142175\)
\(L(\frac12)\) \(\approx\) \(2.213142175\)
\(L(2)\) 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 \( 1 \)
19 \( 1 - 19T \)
good5 \( 1 - 9.97T + 25T^{2} \)
7 \( 1 + 13.8T + 49T^{2} \)
11 \( 1 + 8.29T + 121T^{2} \)
13 \( 1 - 169T^{2} \)
17 \( 1 - 28.2T + 289T^{2} \)
23 \( 1 - 34.8T + 529T^{2} \)
29 \( 1 - 841T^{2} \)
31 \( 1 - 961T^{2} \)
37 \( 1 - 1.36e3T^{2} \)
41 \( 1 - 1.68e3T^{2} \)
43 \( 1 - 53.8T + 1.84e3T^{2} \)
47 \( 1 + 36.6T + 2.20e3T^{2} \)
53 \( 1 - 2.80e3T^{2} \)
59 \( 1 - 3.48e3T^{2} \)
61 \( 1 + 5.12T + 3.72e3T^{2} \)
67 \( 1 - 4.48e3T^{2} \)
71 \( 1 - 5.04e3T^{2} \)
73 \( 1 + 112.T + 5.32e3T^{2} \)
79 \( 1 - 6.24e3T^{2} \)
83 \( 1 - 139.T + 6.88e3T^{2} \)
89 \( 1 - 7.92e3T^{2} \)
97 \( 1 - 9.40e3T^{2} \)
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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

−10.04839379334437997700979308869, −9.579979575089529013846083656630, −8.994610705692777666064651554476, −7.42662078739164856114452663119, −6.56073586274598806390546434394, −5.76845037720168001067726041610, −5.22575714098768762590399189514, −3.23499576765945060923441191991, −2.68838761327096086067058740339, −1.05209058676810083659733323207, 1.05209058676810083659733323207, 2.68838761327096086067058740339, 3.23499576765945060923441191991, 5.22575714098768762590399189514, 5.76845037720168001067726041610, 6.56073586274598806390546434394, 7.42662078739164856114452663119, 8.994610705692777666064651554476, 9.579979575089529013846083656630, 10.04839379334437997700979308869

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