Properties

Label 2-786-1.1-c1-0-20
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 − 4·5-s − 6-s + 3·7-s + 8-s + 9-s − 4·10-s − 2·11-s − 12-s − 2·13-s + 3·14-s + 4·15-s + 16-s − 2·17-s + 18-s − 7·19-s − 4·20-s − 3·21-s − 2·22-s − 6·23-s − 24-s + 11·25-s − 2·26-s − 27-s + 3·28-s + ⋯
L(s)  = 1  + 0.707·2-s − 0.577·3-s + 1/2·4-s − 1.78·5-s − 0.408·6-s + 1.13·7-s + 0.353·8-s + 1/3·9-s − 1.26·10-s − 0.603·11-s − 0.288·12-s − 0.554·13-s + 0.801·14-s + 1.03·15-s + 1/4·16-s − 0.485·17-s + 0.235·18-s − 1.60·19-s − 0.894·20-s − 0.654·21-s − 0.426·22-s − 1.25·23-s − 0.204·24-s + 11/5·25-s − 0.392·26-s − 0.192·27-s + 0.566·28-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 \( 1 + 4 T + p T^{2} \)
7 \( 1 - 3 T + p T^{2} \)
11 \( 1 + 2 T + p T^{2} \)
13 \( 1 + 2 T + p T^{2} \)
17 \( 1 + 2 T + p T^{2} \)
19 \( 1 + 7 T + p T^{2} \)
23 \( 1 + 6 T + p T^{2} \)
29 \( 1 + T + p T^{2} \)
31 \( 1 + 2 T + p T^{2} \)
37 \( 1 + 7 T + p T^{2} \)
41 \( 1 + 5 T + p T^{2} \)
43 \( 1 - 8 T + p T^{2} \)
47 \( 1 + 4 T + p T^{2} \)
53 \( 1 + 2 T + p T^{2} \)
59 \( 1 + 12 T + p T^{2} \)
61 \( 1 - 12 T + p T^{2} \)
67 \( 1 + 15 T + p T^{2} \)
71 \( 1 - 14 T + p T^{2} \)
73 \( 1 + 2 T + p T^{2} \)
79 \( 1 - 4 T + p T^{2} \)
83 \( 1 - 15 T + p T^{2} \)
89 \( 1 - T + p T^{2} \)
97 \( 1 + 4 T + p T^{2} \)
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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

−10.36828839553079636898912742025, −8.673436493776185544675623176808, −7.933830349183438276877648463405, −7.35487302900335587611614440654, −6.31957012190157123135096363551, −5.02189903682911174148969978566, −4.49721695073094645340521851249, −3.67033451303920978757956165896, −2.08991428980413846681790037952, 0, 2.08991428980413846681790037952, 3.67033451303920978757956165896, 4.49721695073094645340521851249, 5.02189903682911174148969978566, 6.31957012190157123135096363551, 7.35487302900335587611614440654, 7.933830349183438276877648463405, 8.673436493776185544675623176808, 10.36828839553079636898912742025

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