Properties

Label 2-18-1.1-c11-0-3
Degree $2$
Conductor $18$
Sign $-1$
Analytic cond. $13.8301$
Root an. cond. $3.71889$
Motivic weight $11$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 32·2-s + 1.02e3·4-s − 3.63e3·5-s + 3.29e4·7-s − 3.27e4·8-s + 1.16e5·10-s + 7.58e5·11-s − 2.48e6·13-s − 1.05e6·14-s + 1.04e6·16-s − 8.29e6·17-s − 1.08e7·19-s − 3.71e6·20-s − 2.42e7·22-s − 2.05e7·23-s − 3.56e7·25-s + 7.94e7·26-s + 3.37e7·28-s − 2.88e7·29-s + 1.50e8·31-s − 3.35e7·32-s + 2.65e8·34-s − 1.19e8·35-s − 3.19e8·37-s + 3.47e8·38-s + 1.18e8·40-s + 3.68e8·41-s + ⋯
L(s)  = 1  − 0.707·2-s + 1/2·4-s − 0.519·5-s + 0.740·7-s − 0.353·8-s + 0.367·10-s + 1.42·11-s − 1.85·13-s − 0.523·14-s + 1/4·16-s − 1.41·17-s − 1.00·19-s − 0.259·20-s − 1.00·22-s − 0.665·23-s − 0.730·25-s + 1.31·26-s + 0.370·28-s − 0.260·29-s + 0.944·31-s − 0.176·32-s + 1.00·34-s − 0.384·35-s − 0.758·37-s + 0.711·38-s + 0.183·40-s + 0.496·41-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 18 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(12-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 18 ^{s/2} \, \Gamma_{\C}(s+11/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(18\)    =    \(2 \cdot 3^{2}\)
Sign: $-1$
Analytic conductor: \(13.8301\)
Root analytic conductor: \(3.71889\)
Motivic weight: \(11\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 18,\ (\ :11/2),\ -1)\)

Particular Values

\(L(6)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{13}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + p^{5} T \)
3 \( 1 \)
good5 \( 1 + 726 p T + p^{11} T^{2} \)
7 \( 1 - 32936 T + p^{11} T^{2} \)
11 \( 1 - 758748 T + p^{11} T^{2} \)
13 \( 1 + 2482858 T + p^{11} T^{2} \)
17 \( 1 + 8290386 T + p^{11} T^{2} \)
19 \( 1 + 10867300 T + p^{11} T^{2} \)
23 \( 1 + 20539272 T + p^{11} T^{2} \)
29 \( 1 + 28814550 T + p^{11} T^{2} \)
31 \( 1 - 150501392 T + p^{11} T^{2} \)
37 \( 1 + 8645722 p T + p^{11} T^{2} \)
41 \( 1 - 368008998 T + p^{11} T^{2} \)
43 \( 1 - 620469572 T + p^{11} T^{2} \)
47 \( 1 + 2763110256 T + p^{11} T^{2} \)
53 \( 1 - 268284258 T + p^{11} T^{2} \)
59 \( 1 + 1672894740 T + p^{11} T^{2} \)
61 \( 1 + 7787197498 T + p^{11} T^{2} \)
67 \( 1 - 18706694156 T + p^{11} T^{2} \)
71 \( 1 - 8346990888 T + p^{11} T^{2} \)
73 \( 1 - 19641746522 T + p^{11} T^{2} \)
79 \( 1 + 5873807200 T + p^{11} T^{2} \)
83 \( 1 + 8492558172 T + p^{11} T^{2} \)
89 \( 1 + 75527864010 T + p^{11} T^{2} \)
97 \( 1 + 82356782494 T + p^{11} T^{2} \)
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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

−15.38676241250759586377374100276, −14.35885358090150548084475966669, −12.22883928367151759071501010853, −11.22510283957828840396429645474, −9.568452712846735819717320593072, −8.168563607164780177940211680212, −6.74458678728213738616867926991, −4.40165481434889541833890815260, −2.00592727109788167431861940869, 0, 2.00592727109788167431861940869, 4.40165481434889541833890815260, 6.74458678728213738616867926991, 8.168563607164780177940211680212, 9.568452712846735819717320593072, 11.22510283957828840396429645474, 12.22883928367151759071501010853, 14.35885358090150548084475966669, 15.38676241250759586377374100276

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