Properties

Label 2-3e3-3.2-c4-0-2
Degree $2$
Conductor $27$
Sign $1$
Analytic cond. $2.79098$
Root an. cond. $1.67062$
Motivic weight $4$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 16·4-s + 71·7-s − 337·13-s + 256·16-s − 601·19-s + 625·25-s + 1.13e3·28-s + 194·31-s − 529·37-s − 3.21e3·43-s + 2.64e3·49-s − 5.39e3·52-s + 7.19e3·61-s + 4.09e3·64-s + 2.90e3·67-s − 1.24e3·73-s − 9.61e3·76-s + 4.67e3·79-s − 2.39e4·91-s + 9.07e3·97-s + 1.00e4·100-s − 1.98e4·103-s + 2.20e4·109-s + 1.81e4·112-s + ⋯
L(s)  = 1  + 4-s + 1.44·7-s − 1.99·13-s + 16-s − 1.66·19-s + 25-s + 1.44·28-s + 0.201·31-s − 0.386·37-s − 1.73·43-s + 1.09·49-s − 1.99·52-s + 1.93·61-s + 64-s + 0.646·67-s − 0.234·73-s − 1.66·76-s + 0.749·79-s − 2.88·91-s + 0.964·97-s + 100-s − 1.87·103-s + 1.85·109-s + 1.44·112-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 27 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(5-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 27 ^{s/2} \, \Gamma_{\C}(s+2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(27\)    =    \(3^{3}\)
Sign: $1$
Analytic conductor: \(2.79098\)
Root analytic conductor: \(1.67062\)
Motivic weight: \(4\)
Rational: yes
Arithmetic: yes
Character: $\chi_{27} (26, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 27,\ (\ :2),\ 1)\)

Particular Values

\(L(\frac{5}{2})\) \(\approx\) \(1.667562511\)
\(L(\frac12)\) \(\approx\) \(1.667562511\)
\(L(3)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 \)
good2 \( ( 1 - p^{2} T )( 1 + p^{2} T ) \)
5 \( ( 1 - p^{2} T )( 1 + p^{2} T ) \)
7 \( 1 - 71 T + p^{4} T^{2} \)
11 \( ( 1 - p^{2} T )( 1 + p^{2} T ) \)
13 \( 1 + 337 T + p^{4} T^{2} \)
17 \( ( 1 - p^{2} T )( 1 + p^{2} T ) \)
19 \( 1 + 601 T + p^{4} T^{2} \)
23 \( ( 1 - p^{2} T )( 1 + p^{2} T ) \)
29 \( ( 1 - p^{2} T )( 1 + p^{2} T ) \)
31 \( 1 - 194 T + p^{4} T^{2} \)
37 \( 1 + 529 T + p^{4} T^{2} \)
41 \( ( 1 - p^{2} T )( 1 + p^{2} T ) \)
43 \( 1 + 3214 T + p^{4} T^{2} \)
47 \( ( 1 - p^{2} T )( 1 + p^{2} T ) \)
53 \( ( 1 - p^{2} T )( 1 + p^{2} T ) \)
59 \( ( 1 - p^{2} T )( 1 + p^{2} T ) \)
61 \( 1 - 7199 T + p^{4} T^{2} \)
67 \( 1 - 2903 T + p^{4} T^{2} \)
71 \( ( 1 - p^{2} T )( 1 + p^{2} T ) \)
73 \( 1 + 1249 T + p^{4} T^{2} \)
79 \( 1 - 4679 T + p^{4} T^{2} \)
83 \( ( 1 - p^{2} T )( 1 + p^{2} T ) \)
89 \( ( 1 - p^{2} T )( 1 + p^{2} T ) \)
97 \( 1 - 9071 T + p^{4} T^{2} \)
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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

−16.75263768577637040989235941169, −15.04952294764606219841084010105, −14.56756900868376874302879694925, −12.51074638815196116965650809016, −11.44866451912438386718790765007, −10.29776587991541655436527843802, −8.238964733148844902725521644900, −6.95123716708336977906275478123, −4.94211312981032595816400801936, −2.17012470140008254428436281074, 2.17012470140008254428436281074, 4.94211312981032595816400801936, 6.95123716708336977906275478123, 8.238964733148844902725521644900, 10.29776587991541655436527843802, 11.44866451912438386718790765007, 12.51074638815196116965650809016, 14.56756900868376874302879694925, 15.04952294764606219841084010105, 16.75263768577637040989235941169

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