Properties

Label 2-3e4-1.1-c21-0-52
Degree $2$
Conductor $81$
Sign $-1$
Analytic cond. $226.376$
Root an. cond. $15.0458$
Motivic weight $21$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 1.08e3·2-s − 9.14e5·4-s − 1.49e6·5-s − 7.63e7·7-s + 3.27e9·8-s + 1.62e9·10-s + 1.45e11·11-s − 6.28e11·13-s + 8.30e10·14-s − 1.64e12·16-s + 8.35e12·17-s − 8.83e12·19-s + 1.36e12·20-s − 1.58e14·22-s + 8.45e13·23-s − 4.74e14·25-s + 6.83e14·26-s + 6.98e13·28-s − 1.39e15·29-s − 7.21e15·31-s − 5.08e15·32-s − 9.08e15·34-s + 1.14e14·35-s + 1.51e16·37-s + 9.60e15·38-s − 4.90e15·40-s + 7.57e16·41-s + ⋯
L(s)  = 1  − 0.750·2-s − 0.436·4-s − 0.0685·5-s − 0.102·7-s + 1.07·8-s + 0.0514·10-s + 1.69·11-s − 1.26·13-s + 0.0767·14-s − 0.373·16-s + 1.00·17-s − 0.330·19-s + 0.0299·20-s − 1.27·22-s + 0.425·23-s − 0.995·25-s + 0.949·26-s + 0.0445·28-s − 0.617·29-s − 1.58·31-s − 0.798·32-s − 0.754·34-s + 0.00700·35-s + 0.517·37-s + 0.248·38-s − 0.0739·40-s + 0.880·41-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 81 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(22-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 81 ^{s/2} \, \Gamma_{\C}(s+21/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(81\)    =    \(3^{4}\)
Sign: $-1$
Analytic conductor: \(226.376\)
Root analytic conductor: \(15.0458\)
Motivic weight: \(21\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 81,\ (\ :21/2),\ -1)\)

Particular Values

\(L(11)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{23}{2})\) 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 \( 1 + 1.08e3T + 2.09e6T^{2} \)
5 \( 1 + 1.49e6T + 4.76e14T^{2} \)
7 \( 1 + 7.63e7T + 5.58e17T^{2} \)
11 \( 1 - 1.45e11T + 7.40e21T^{2} \)
13 \( 1 + 6.28e11T + 2.47e23T^{2} \)
17 \( 1 - 8.35e12T + 6.90e25T^{2} \)
19 \( 1 + 8.83e12T + 7.14e26T^{2} \)
23 \( 1 - 8.45e13T + 3.94e28T^{2} \)
29 \( 1 + 1.39e15T + 5.13e30T^{2} \)
31 \( 1 + 7.21e15T + 2.08e31T^{2} \)
37 \( 1 - 1.51e16T + 8.55e32T^{2} \)
41 \( 1 - 7.57e16T + 7.38e33T^{2} \)
43 \( 1 - 1.45e17T + 2.00e34T^{2} \)
47 \( 1 - 2.38e17T + 1.30e35T^{2} \)
53 \( 1 + 1.10e18T + 1.62e36T^{2} \)
59 \( 1 + 1.24e18T + 1.54e37T^{2} \)
61 \( 1 - 1.77e18T + 3.10e37T^{2} \)
67 \( 1 + 3.50e18T + 2.22e38T^{2} \)
71 \( 1 - 4.49e19T + 7.52e38T^{2} \)
73 \( 1 + 6.36e19T + 1.34e39T^{2} \)
79 \( 1 - 2.99e19T + 7.08e39T^{2} \)
83 \( 1 - 2.77e19T + 1.99e40T^{2} \)
89 \( 1 - 3.84e20T + 8.65e40T^{2} \)
97 \( 1 - 9.03e20T + 5.27e41T^{2} \)
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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

−9.503215573795402419072287664212, −9.317276852710097516844000641969, −7.908162087720934051666265232171, −7.11308506880470460076981180648, −5.72725251496519467044299776068, −4.47270130899632928891991507928, −3.58349377108754024792755624135, −1.97243639745561411072808718274, −1.00531330890919917642355584497, 0, 1.00531330890919917642355584497, 1.97243639745561411072808718274, 3.58349377108754024792755624135, 4.47270130899632928891991507928, 5.72725251496519467044299776068, 7.11308506880470460076981180648, 7.908162087720934051666265232171, 9.317276852710097516844000641969, 9.503215573795402419072287664212

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