Properties

Label 2-3e4-1.1-c3-0-2
Degree $2$
Conductor $81$
Sign $1$
Analytic cond. $4.77915$
Root an. cond. $2.18612$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 1.37·2-s − 6.11·4-s + 10.3·5-s − 5.11·7-s + 19.3·8-s − 14.2·10-s + 55.9·11-s + 37.5·13-s + 7.02·14-s + 22.3·16-s + 23.6·17-s + 39.0·19-s − 63.4·20-s − 76.8·22-s + 71.0·23-s − 17.4·25-s − 51.5·26-s + 31.2·28-s − 28.3·29-s + 12.8·31-s − 185.·32-s − 32.4·34-s − 53.0·35-s − 180.·37-s − 53.5·38-s + 200.·40-s − 215.·41-s + ⋯
L(s)  = 1  − 0.485·2-s − 0.764·4-s + 0.927·5-s − 0.276·7-s + 0.856·8-s − 0.450·10-s + 1.53·11-s + 0.801·13-s + 0.134·14-s + 0.349·16-s + 0.337·17-s + 0.471·19-s − 0.709·20-s − 0.744·22-s + 0.644·23-s − 0.139·25-s − 0.389·26-s + 0.211·28-s − 0.181·29-s + 0.0746·31-s − 1.02·32-s − 0.163·34-s − 0.256·35-s − 0.800·37-s − 0.228·38-s + 0.794·40-s − 0.820·41-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 81 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 81 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(81\)    =    \(3^{4}\)
Sign: $1$
Analytic conductor: \(4.77915\)
Root analytic conductor: \(2.18612\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 81,\ (\ :3/2),\ 1)\)

Particular Values

\(L(2)\) \(\approx\) \(1.226533536\)
\(L(\frac12)\) \(\approx\) \(1.226533536\)
\(L(\frac{5}{2})\) 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 \( 1 + 1.37T + 8T^{2} \)
5 \( 1 - 10.3T + 125T^{2} \)
7 \( 1 + 5.11T + 343T^{2} \)
11 \( 1 - 55.9T + 1.33e3T^{2} \)
13 \( 1 - 37.5T + 2.19e3T^{2} \)
17 \( 1 - 23.6T + 4.91e3T^{2} \)
19 \( 1 - 39.0T + 6.85e3T^{2} \)
23 \( 1 - 71.0T + 1.21e4T^{2} \)
29 \( 1 + 28.3T + 2.43e4T^{2} \)
31 \( 1 - 12.8T + 2.97e4T^{2} \)
37 \( 1 + 180.T + 5.06e4T^{2} \)
41 \( 1 + 215.T + 6.89e4T^{2} \)
43 \( 1 - 61.2T + 7.95e4T^{2} \)
47 \( 1 + 61.8T + 1.03e5T^{2} \)
53 \( 1 - 492.T + 1.48e5T^{2} \)
59 \( 1 - 789.T + 2.05e5T^{2} \)
61 \( 1 - 521.T + 2.26e5T^{2} \)
67 \( 1 - 304.T + 3.00e5T^{2} \)
71 \( 1 - 270.T + 3.57e5T^{2} \)
73 \( 1 + 925.T + 3.89e5T^{2} \)
79 \( 1 + 1.28e3T + 4.93e5T^{2} \)
83 \( 1 - 713.T + 5.71e5T^{2} \)
89 \( 1 + 404.T + 7.04e5T^{2} \)
97 \( 1 - 75.0T + 9.12e5T^{2} \)
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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

−13.82216648837738113365636432674, −13.03334970135467552696887392049, −11.61951874312439217825415844331, −10.18193927761140093705366970316, −9.378543153758098915250812484491, −8.533224367871037452179829857843, −6.82792884324519527943447860093, −5.49455437992386359685377433967, −3.80380878156222303217447378042, −1.31262223242761053609852637369, 1.31262223242761053609852637369, 3.80380878156222303217447378042, 5.49455437992386359685377433967, 6.82792884324519527943447860093, 8.533224367871037452179829857843, 9.378543153758098915250812484491, 10.18193927761140093705366970316, 11.61951874312439217825415844331, 13.03334970135467552696887392049, 13.82216648837738113365636432674

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