Properties

Label 2-3e4-1.1-c21-0-76
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  + 1.77e3·2-s + 1.05e6·4-s + 3.60e7·5-s − 2.31e8·7-s − 1.85e9·8-s + 6.40e10·10-s − 3.66e10·11-s − 2.05e11·13-s − 4.10e11·14-s − 5.49e12·16-s + 4.27e12·17-s + 3.46e13·19-s + 3.80e13·20-s − 6.50e13·22-s − 2.66e14·23-s + 8.22e14·25-s − 3.64e14·26-s − 2.43e14·28-s − 3.18e15·29-s − 3.91e15·31-s − 5.88e15·32-s + 7.59e15·34-s − 8.33e15·35-s + 1.55e16·37-s + 6.15e16·38-s − 6.66e16·40-s + 1.45e17·41-s + ⋯
L(s)  = 1  + 1.22·2-s + 0.503·4-s + 1.65·5-s − 0.309·7-s − 0.609·8-s + 2.02·10-s − 0.426·11-s − 0.413·13-s − 0.379·14-s − 1.24·16-s + 0.514·17-s + 1.29·19-s + 0.830·20-s − 0.522·22-s − 1.34·23-s + 1.72·25-s − 0.507·26-s − 0.155·28-s − 1.40·29-s − 0.857·31-s − 0.923·32-s + 0.630·34-s − 0.510·35-s + 0.530·37-s + 1.58·38-s − 1.00·40-s + 1.69·41-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 \( 1 - 1.77e3T + 2.09e6T^{2} \)
5 \( 1 - 3.60e7T + 4.76e14T^{2} \)
7 \( 1 + 2.31e8T + 5.58e17T^{2} \)
11 \( 1 + 3.66e10T + 7.40e21T^{2} \)
13 \( 1 + 2.05e11T + 2.47e23T^{2} \)
17 \( 1 - 4.27e12T + 6.90e25T^{2} \)
19 \( 1 - 3.46e13T + 7.14e26T^{2} \)
23 \( 1 + 2.66e14T + 3.94e28T^{2} \)
29 \( 1 + 3.18e15T + 5.13e30T^{2} \)
31 \( 1 + 3.91e15T + 2.08e31T^{2} \)
37 \( 1 - 1.55e16T + 8.55e32T^{2} \)
41 \( 1 - 1.45e17T + 7.38e33T^{2} \)
43 \( 1 - 8.81e16T + 2.00e34T^{2} \)
47 \( 1 + 5.74e17T + 1.30e35T^{2} \)
53 \( 1 + 1.50e18T + 1.62e36T^{2} \)
59 \( 1 + 6.32e18T + 1.54e37T^{2} \)
61 \( 1 + 6.64e18T + 3.10e37T^{2} \)
67 \( 1 - 1.15e18T + 2.22e38T^{2} \)
71 \( 1 - 4.65e19T + 7.52e38T^{2} \)
73 \( 1 - 1.51e19T + 1.34e39T^{2} \)
79 \( 1 + 1.10e20T + 7.08e39T^{2} \)
83 \( 1 + 1.54e20T + 1.99e40T^{2} \)
89 \( 1 + 1.58e20T + 8.65e40T^{2} \)
97 \( 1 - 3.44e20T + 5.27e41T^{2} \)
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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

−9.755102338238550187524276408248, −9.385605260104817648812161835150, −7.60423733515818238535010334612, −6.16490510869739423922933126040, −5.68188015425883563115239633041, −4.81096446411564654256963426704, −3.44760405115292549477184643069, −2.54080915967457218600045043680, −1.56517441648243970620988824663, 0, 1.56517441648243970620988824663, 2.54080915967457218600045043680, 3.44760405115292549477184643069, 4.81096446411564654256963426704, 5.68188015425883563115239633041, 6.16490510869739423922933126040, 7.60423733515818238535010334612, 9.385605260104817648812161835150, 9.755102338238550187524276408248

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