Properties

Label 2-3e3-1.1-c7-0-8
Degree $2$
Conductor $27$
Sign $-1$
Analytic cond. $8.43439$
Root an. cond. $2.90420$
Motivic weight $7$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 10.3·2-s − 20·4-s − 353.·5-s − 559·7-s − 1.53e3·8-s − 3.67e3·10-s + 4.71e3·11-s − 8.67e3·13-s − 5.80e3·14-s − 1.34e4·16-s + 2.51e4·17-s − 3.24e4·19-s + 7.06e3·20-s + 4.90e4·22-s − 8.24e4·23-s + 4.67e4·25-s − 9.01e4·26-s + 1.11e4·28-s + 1.57e5·29-s + 2.29e5·31-s + 5.73e4·32-s + 2.61e5·34-s + 1.97e5·35-s − 5.41e5·37-s − 3.37e5·38-s + 5.43e5·40-s + 3.53e5·41-s + ⋯
L(s)  = 1  + 0.918·2-s − 0.156·4-s − 1.26·5-s − 0.615·7-s − 1.06·8-s − 1.16·10-s + 1.06·11-s − 1.09·13-s − 0.565·14-s − 0.819·16-s + 1.24·17-s − 1.08·19-s + 0.197·20-s + 0.981·22-s − 1.41·23-s + 0.598·25-s − 1.00·26-s + 0.0962·28-s + 1.20·29-s + 1.38·31-s + 0.309·32-s + 1.13·34-s + 0.778·35-s − 1.75·37-s − 0.997·38-s + 1.34·40-s + 0.801·41-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 27 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(8-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 27 ^{s/2} \, \Gamma_{\C}(s+7/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(27\)    =    \(3^{3}\)
Sign: $-1$
Analytic conductor: \(8.43439\)
Root analytic conductor: \(2.90420\)
Motivic weight: \(7\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 27,\ (\ :7/2),\ -1)\)

Particular Values

\(L(4)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{9}{2})\) 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 \( 1 - 10.3T + 128T^{2} \)
5 \( 1 + 353.T + 7.81e4T^{2} \)
7 \( 1 + 559T + 8.23e5T^{2} \)
11 \( 1 - 4.71e3T + 1.94e7T^{2} \)
13 \( 1 + 8.67e3T + 6.27e7T^{2} \)
17 \( 1 - 2.51e4T + 4.10e8T^{2} \)
19 \( 1 + 3.24e4T + 8.93e8T^{2} \)
23 \( 1 + 8.24e4T + 3.40e9T^{2} \)
29 \( 1 - 1.57e5T + 1.72e10T^{2} \)
31 \( 1 - 2.29e5T + 2.75e10T^{2} \)
37 \( 1 + 5.41e5T + 9.49e10T^{2} \)
41 \( 1 - 3.53e5T + 1.94e11T^{2} \)
43 \( 1 + 4.65e5T + 2.71e11T^{2} \)
47 \( 1 + 8.30e5T + 5.06e11T^{2} \)
53 \( 1 + 1.02e6T + 1.17e12T^{2} \)
59 \( 1 + 7.85e5T + 2.48e12T^{2} \)
61 \( 1 + 1.37e5T + 3.14e12T^{2} \)
67 \( 1 + 3.14e5T + 6.06e12T^{2} \)
71 \( 1 + 2.80e6T + 9.09e12T^{2} \)
73 \( 1 - 2.66e6T + 1.10e13T^{2} \)
79 \( 1 - 1.10e6T + 1.92e13T^{2} \)
83 \( 1 - 6.07e6T + 2.71e13T^{2} \)
89 \( 1 + 3.28e6T + 4.42e13T^{2} \)
97 \( 1 + 2.97e6T + 8.07e13T^{2} \)
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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

−14.93324438020422445147537383513, −14.03169805171405428311262134190, −12.33174935363876988163628468021, −11.98033299180455238610726822627, −9.855449691442024408834874111711, −8.220658638036765700153006701231, −6.46373836221569636960281246080, −4.54985839463128382303112830726, −3.38815430353768904665244101178, 0, 3.38815430353768904665244101178, 4.54985839463128382303112830726, 6.46373836221569636960281246080, 8.220658638036765700153006701231, 9.855449691442024408834874111711, 11.98033299180455238610726822627, 12.33174935363876988163628468021, 14.03169805171405428311262134190, 14.93324438020422445147537383513

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