Properties

Label 2-20727-1.1-c1-0-3
Degree $2$
Conductor $20727$
Sign $1$
Analytic cond. $165.505$
Root an. cond. $12.8649$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2·2-s + 2·4-s − 3·5-s − 6·10-s + 5·11-s − 2·13-s − 4·16-s − 6·17-s + 6·19-s − 6·20-s + 10·22-s − 9·23-s + 4·25-s − 4·26-s − 29-s + 2·31-s − 8·32-s − 12·34-s + 37-s + 12·38-s + 6·41-s + 2·43-s + 10·44-s − 18·46-s + 47-s + 8·50-s − 4·52-s + ⋯
L(s)  = 1  + 1.41·2-s + 4-s − 1.34·5-s − 1.89·10-s + 1.50·11-s − 0.554·13-s − 16-s − 1.45·17-s + 1.37·19-s − 1.34·20-s + 2.13·22-s − 1.87·23-s + 4/5·25-s − 0.784·26-s − 0.185·29-s + 0.359·31-s − 1.41·32-s − 2.05·34-s + 0.164·37-s + 1.94·38-s + 0.937·41-s + 0.304·43-s + 1.50·44-s − 2.65·46-s + 0.145·47-s + 1.13·50-s − 0.554·52-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 20727 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 20727 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(20727\)    =    \(3^{2} \cdot 7^{2} \cdot 47\)
Sign: $1$
Analytic conductor: \(165.505\)
Root analytic conductor: \(12.8649\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 20727,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.598105714\)
\(L(\frac12)\) \(\approx\) \(2.598105714\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 \)
7 \( 1 \)
47 \( 1 - T \)
good2 \( 1 - p T + p T^{2} \)
5 \( 1 + 3 T + p T^{2} \)
11 \( 1 - 5 T + p T^{2} \)
13 \( 1 + 2 T + p T^{2} \)
17 \( 1 + 6 T + p T^{2} \)
19 \( 1 - 6 T + p T^{2} \)
23 \( 1 + 9 T + p T^{2} \)
29 \( 1 + T + p T^{2} \)
31 \( 1 - 2 T + p T^{2} \)
37 \( 1 - T + p T^{2} \)
41 \( 1 - 6 T + p T^{2} \)
43 \( 1 - 2 T + p T^{2} \)
53 \( 1 + p T^{2} \)
59 \( 1 + 12 T + p T^{2} \)
61 \( 1 - 2 T + p T^{2} \)
67 \( 1 - 2 T + p T^{2} \)
71 \( 1 - 2 T + p T^{2} \)
73 \( 1 - 2 T + p T^{2} \)
79 \( 1 + 15 T + p T^{2} \)
83 \( 1 + 4 T + p T^{2} \)
89 \( 1 - 10 T + p T^{2} \)
97 \( 1 + T + p T^{2} \)
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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

−15.53918820203634, −15.06400875393024, −14.30732195580735, −14.13064832123647, −13.59395171908113, −12.77273308007040, −12.30695175422308, −11.87866005460483, −11.43394562409260, −11.19417449234352, −10.12488532688118, −9.411311219836978, −8.926324696792052, −8.208681649276775, −7.422923375953189, −7.095944583457852, −6.205819935876982, −5.950186267532285, −4.853747522084696, −4.435240647364345, −3.934792046170743, −3.491379695702104, −2.663517723154641, −1.796971006382188, −0.5116401416806858, 0.5116401416806858, 1.796971006382188, 2.663517723154641, 3.491379695702104, 3.934792046170743, 4.435240647364345, 4.853747522084696, 5.950186267532285, 6.205819935876982, 7.095944583457852, 7.422923375953189, 8.208681649276775, 8.926324696792052, 9.411311219836978, 10.12488532688118, 11.19417449234352, 11.43394562409260, 11.87866005460483, 12.30695175422308, 12.77273308007040, 13.59395171908113, 14.13064832123647, 14.30732195580735, 15.06400875393024, 15.53918820203634

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