Properties

Label 2-786-1.1-c1-0-17
Degree $2$
Conductor $786$
Sign $-1$
Analytic cond. $6.27624$
Root an. cond. $2.50524$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 2-s + 3-s + 4-s − 2·5-s − 6-s − 2·7-s − 8-s + 9-s + 2·10-s + 3·11-s + 12-s − 5·13-s + 2·14-s − 2·15-s + 16-s + 7·17-s − 18-s − 5·19-s − 2·20-s − 2·21-s − 3·22-s − 4·23-s − 24-s − 25-s + 5·26-s + 27-s − 2·28-s + ⋯
L(s)  = 1  − 0.707·2-s + 0.577·3-s + 1/2·4-s − 0.894·5-s − 0.408·6-s − 0.755·7-s − 0.353·8-s + 1/3·9-s + 0.632·10-s + 0.904·11-s + 0.288·12-s − 1.38·13-s + 0.534·14-s − 0.516·15-s + 1/4·16-s + 1.69·17-s − 0.235·18-s − 1.14·19-s − 0.447·20-s − 0.436·21-s − 0.639·22-s − 0.834·23-s − 0.204·24-s − 1/5·25-s + 0.980·26-s + 0.192·27-s − 0.377·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 786 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 786 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(786\)    =    \(2 \cdot 3 \cdot 131\)
Sign: $-1$
Analytic conductor: \(6.27624\)
Root analytic conductor: \(2.50524\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 786,\ (\ :1/2),\ -1)\)

Particular Values

\(L(1)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + T \)
3 \( 1 - T \)
131 \( 1 - T \)
good5 \( 1 + 2 T + p T^{2} \)
7 \( 1 + 2 T + p T^{2} \)
11 \( 1 - 3 T + p T^{2} \)
13 \( 1 + 5 T + p T^{2} \)
17 \( 1 - 7 T + p T^{2} \)
19 \( 1 + 5 T + p T^{2} \)
23 \( 1 + 4 T + p T^{2} \)
29 \( 1 + 3 T + p T^{2} \)
31 \( 1 + 7 T + p T^{2} \)
37 \( 1 + 8 T + p T^{2} \)
41 \( 1 + 12 T + p T^{2} \)
43 \( 1 + 2 T + p T^{2} \)
47 \( 1 - 8 T + p T^{2} \)
53 \( 1 - 4 T + p T^{2} \)
59 \( 1 + 3 T + p T^{2} \)
61 \( 1 - 13 T + p T^{2} \)
67 \( 1 - 8 T + p T^{2} \)
71 \( 1 + 16 T + p T^{2} \)
73 \( 1 + 2 T + p T^{2} \)
79 \( 1 + p T^{2} \)
83 \( 1 - 6 T + p T^{2} \)
89 \( 1 + 14 T + p T^{2} \)
97 \( 1 - 12 T + p T^{2} \)
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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

−9.864701877333940298291207314459, −9.007660079477580141510770908246, −8.184065983773167685550511616651, −7.39121605883311337973891499090, −6.77686019170865019878523434167, −5.50004206915861886604460589070, −3.99654645002136310469009194108, −3.30471830679599508220370425065, −1.90813808533815055195502247129, 0, 1.90813808533815055195502247129, 3.30471830679599508220370425065, 3.99654645002136310469009194108, 5.50004206915861886604460589070, 6.77686019170865019878523434167, 7.39121605883311337973891499090, 8.184065983773167685550511616651, 9.007660079477580141510770908246, 9.864701877333940298291207314459

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