Properties

Label 2-18-1.1-c25-0-9
Degree $2$
Conductor $18$
Sign $-1$
Analytic cond. $71.2794$
Root an. cond. $8.44271$
Motivic weight $25$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 4.09e3·2-s + 1.67e7·4-s + 2.92e8·5-s + 3.58e9·7-s + 6.87e10·8-s + 1.19e12·10-s − 1.51e13·11-s + 1.22e12·13-s + 1.46e13·14-s + 2.81e14·16-s − 2.51e15·17-s − 7.99e15·19-s + 4.91e15·20-s − 6.18e16·22-s + 9.96e16·23-s − 2.12e17·25-s + 5.00e15·26-s + 6.00e16·28-s + 2.08e18·29-s − 4.93e18·31-s + 1.15e18·32-s − 1.03e19·34-s + 1.04e18·35-s + 1.98e19·37-s − 3.27e19·38-s + 2.01e19·40-s − 2.24e20·41-s + ⋯
L(s)  = 1  + 0.707·2-s + 1/2·4-s + 0.536·5-s + 0.0977·7-s + 0.353·8-s + 0.379·10-s − 1.45·11-s + 0.0145·13-s + 0.0691·14-s + 1/4·16-s − 1.04·17-s − 0.828·19-s + 0.268·20-s − 1.02·22-s + 0.948·23-s − 0.712·25-s + 0.0102·26-s + 0.0488·28-s + 1.09·29-s − 1.12·31-s + 0.176·32-s − 0.741·34-s + 0.0524·35-s + 0.495·37-s − 0.585·38-s + 0.189·40-s − 1.55·41-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 18 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(26-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 18 ^{s/2} \, \Gamma_{\C}(s+25/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(18\)    =    \(2 \cdot 3^{2}\)
Sign: $-1$
Analytic conductor: \(71.2794\)
Root analytic conductor: \(8.44271\)
Motivic weight: \(25\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 18,\ (\ :25/2),\ -1)\)

Particular Values

\(L(13)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{27}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - p^{12} T \)
3 \( 1 \)
good5 \( 1 - 11710194 p^{2} T + p^{25} T^{2} \)
7 \( 1 - 73074368 p^{2} T + p^{25} T^{2} \)
11 \( 1 + 1373779385292 p T + p^{25} T^{2} \)
13 \( 1 - 1221071681246 T + p^{25} T^{2} \)
17 \( 1 + 2518250853863682 T + p^{25} T^{2} \)
19 \( 1 + 7992693407413060 T + p^{25} T^{2} \)
23 \( 1 - 99645642629247624 T + p^{25} T^{2} \)
29 \( 1 - 2080672742244316890 T + p^{25} T^{2} \)
31 \( 1 + 4937672075835729208 T + p^{25} T^{2} \)
37 \( 1 - 19829154107621718182 T + p^{25} T^{2} \)
41 \( 1 + \)\(22\!\cdots\!42\)\( T + p^{25} T^{2} \)
43 \( 1 + 72221008334482349884 T + p^{25} T^{2} \)
47 \( 1 + \)\(18\!\cdots\!92\)\( T + p^{25} T^{2} \)
53 \( 1 - \)\(26\!\cdots\!74\)\( T + p^{25} T^{2} \)
59 \( 1 - \)\(16\!\cdots\!40\)\( T + p^{25} T^{2} \)
61 \( 1 + \)\(35\!\cdots\!38\)\( T + p^{25} T^{2} \)
67 \( 1 - \)\(10\!\cdots\!92\)\( T + p^{25} T^{2} \)
71 \( 1 + \)\(73\!\cdots\!12\)\( T + p^{25} T^{2} \)
73 \( 1 + \)\(26\!\cdots\!74\)\( T + p^{25} T^{2} \)
79 \( 1 + \)\(10\!\cdots\!40\)\( T + p^{25} T^{2} \)
83 \( 1 + \)\(15\!\cdots\!96\)\( T + p^{25} T^{2} \)
89 \( 1 + \)\(21\!\cdots\!90\)\( T + p^{25} T^{2} \)
97 \( 1 + \)\(44\!\cdots\!58\)\( T + p^{25} T^{2} \)
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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

−12.83605385759259503556387876700, −11.22537417156832596022110802557, −10.14684891054033031972836183624, −8.450656885706566060080891961444, −6.94152731158870908790183773330, −5.62568803381087301199772431691, −4.54334726470719239072445583530, −2.89602380884521572167507375049, −1.84481845224444664544179333228, 0, 1.84481845224444664544179333228, 2.89602380884521572167507375049, 4.54334726470719239072445583530, 5.62568803381087301199772431691, 6.94152731158870908790183773330, 8.450656885706566060080891961444, 10.14684891054033031972836183624, 11.22537417156832596022110802557, 12.83605385759259503556387876700

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