Properties

Label 2-18-1.1-c11-0-0
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 $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 32·2-s + 1.02e3·4-s + 5.28e3·5-s − 4.90e4·7-s − 3.27e4·8-s − 1.68e5·10-s + 4.14e5·11-s − 5.22e5·13-s + 1.56e6·14-s + 1.04e6·16-s + 9.49e6·17-s + 1.30e7·19-s + 5.40e6·20-s − 1.32e7·22-s + 5.87e7·23-s − 2.09e7·25-s + 1.67e7·26-s − 5.02e7·28-s − 1.17e8·29-s + 1.42e8·31-s − 3.35e7·32-s − 3.03e8·34-s − 2.58e8·35-s + 7.18e8·37-s − 4.17e8·38-s − 1.73e8·40-s − 6.68e8·41-s + ⋯
L(s)  = 1  − 0.707·2-s + 1/2·4-s + 0.755·5-s − 1.10·7-s − 0.353·8-s − 0.534·10-s + 0.775·11-s − 0.390·13-s + 0.779·14-s + 1/4·16-s + 1.62·17-s + 1.20·19-s + 0.377·20-s − 0.548·22-s + 1.90·23-s − 0.429·25-s + 0.276·26-s − 0.551·28-s − 1.06·29-s + 0.896·31-s − 0.176·32-s − 1.14·34-s − 0.833·35-s + 1.70·37-s − 0.855·38-s − 0.267·40-s − 0.900·41-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: \(0\)
Selberg data: \((2,\ 18,\ (\ :11/2),\ 1)\)

Particular Values

\(L(6)\) \(\approx\) \(1.419538696\)
\(L(\frac12)\) \(\approx\) \(1.419538696\)
\(L(\frac{13}{2})\) 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 \( 1 - 1056 p T + p^{11} T^{2} \)
7 \( 1 + 49036 T + p^{11} T^{2} \)
11 \( 1 - 414336 T + p^{11} T^{2} \)
13 \( 1 + 522982 T + p^{11} T^{2} \)
17 \( 1 - 9499968 T + p^{11} T^{2} \)
19 \( 1 - 13053944 T + p^{11} T^{2} \)
23 \( 1 - 58755840 T + p^{11} T^{2} \)
29 \( 1 + 117142944 T + p^{11} T^{2} \)
31 \( 1 - 142907156 T + p^{11} T^{2} \)
37 \( 1 - 718521806 T + p^{11} T^{2} \)
41 \( 1 + 668055360 T + p^{11} T^{2} \)
43 \( 1 - 141575864 T + p^{11} T^{2} \)
47 \( 1 - 729235200 T + p^{11} T^{2} \)
53 \( 1 - 4917225312 T + p^{11} T^{2} \)
59 \( 1 - 1408015104 T + p^{11} T^{2} \)
61 \( 1 + 3223327018 T + p^{11} T^{2} \)
67 \( 1 + 2358681328 T + p^{11} T^{2} \)
71 \( 1 + 22245092352 T + p^{11} T^{2} \)
73 \( 1 + 28036594330 T + p^{11} T^{2} \)
79 \( 1 + 20685045676 T + p^{11} T^{2} \)
83 \( 1 - 37818604416 T + p^{11} T^{2} \)
89 \( 1 - 11288711808 T + p^{11} T^{2} \)
97 \( 1 + 115724393266 T + p^{11} T^{2} \)
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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

−16.41645533351426132334190145777, −14.80983040441961086419425228250, −13.29497597807711910275053434514, −11.83784215206999943295772583103, −10.00878332351374057165802516783, −9.281314900169264685882112156273, −7.26221865194666204152221621769, −5.79868717158306993480903337012, −3.07276826320355316617926546304, −1.05540292367277643148934224106, 1.05540292367277643148934224106, 3.07276826320355316617926546304, 5.79868717158306993480903337012, 7.26221865194666204152221621769, 9.281314900169264685882112156273, 10.00878332351374057165802516783, 11.83784215206999943295772583103, 13.29497597807711910275053434514, 14.80983040441961086419425228250, 16.41645533351426132334190145777

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