Properties

Label 2-171-1.1-c1-0-7
Degree $2$
Conductor $171$
Sign $-1$
Analytic cond. $1.36544$
Root an. cond. $1.16852$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 2·4-s − 3·5-s − 7-s − 3·11-s − 4·13-s + 4·16-s + 3·17-s + 19-s + 6·20-s + 4·25-s + 2·28-s − 6·29-s − 4·31-s + 3·35-s + 2·37-s + 6·41-s − 43-s + 6·44-s + 3·47-s − 6·49-s + 8·52-s − 12·53-s + 9·55-s + 6·59-s − 61-s − 8·64-s + 12·65-s + ⋯
L(s)  = 1  − 4-s − 1.34·5-s − 0.377·7-s − 0.904·11-s − 1.10·13-s + 16-s + 0.727·17-s + 0.229·19-s + 1.34·20-s + 4/5·25-s + 0.377·28-s − 1.11·29-s − 0.718·31-s + 0.507·35-s + 0.328·37-s + 0.937·41-s − 0.152·43-s + 0.904·44-s + 0.437·47-s − 6/7·49-s + 1.10·52-s − 1.64·53-s + 1.21·55-s + 0.781·59-s − 0.128·61-s − 64-s + 1.48·65-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 171 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 171 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(171\)    =    \(3^{2} \cdot 19\)
Sign: $-1$
Analytic conductor: \(1.36544\)
Root analytic conductor: \(1.16852\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 171,\ (\ :1/2),\ -1)\)

Particular Values

\(L(1)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 \)
19 \( 1 - T \)
good2 \( 1 + p T^{2} \)
5 \( 1 + 3 T + p T^{2} \)
7 \( 1 + T + p T^{2} \)
11 \( 1 + 3 T + p T^{2} \)
13 \( 1 + 4 T + p T^{2} \)
17 \( 1 - 3 T + p T^{2} \)
23 \( 1 + p T^{2} \)
29 \( 1 + 6 T + p T^{2} \)
31 \( 1 + 4 T + p T^{2} \)
37 \( 1 - 2 T + p T^{2} \)
41 \( 1 - 6 T + p T^{2} \)
43 \( 1 + T + p T^{2} \)
47 \( 1 - 3 T + p T^{2} \)
53 \( 1 + 12 T + p T^{2} \)
59 \( 1 - 6 T + p T^{2} \)
61 \( 1 + T + p T^{2} \)
67 \( 1 + 4 T + p T^{2} \)
71 \( 1 + 6 T + p T^{2} \)
73 \( 1 + 7 T + p T^{2} \)
79 \( 1 - 8 T + p T^{2} \)
83 \( 1 + 12 T + p T^{2} \)
89 \( 1 + 12 T + p T^{2} \)
97 \( 1 - 8 T + p T^{2} \)
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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

−12.45987383937424874038080001140, −11.37237044309941020825023181952, −10.15333178148614777799832547132, −9.238767264318381906771348588364, −7.968751144610877316457317025190, −7.43141403312000422638829977686, −5.51097905283736056328679977781, −4.41466206651142691425988858089, −3.23857552173567549926694025031, 0, 3.23857552173567549926694025031, 4.41466206651142691425988858089, 5.51097905283736056328679977781, 7.43141403312000422638829977686, 7.968751144610877316457317025190, 9.238767264318381906771348588364, 10.15333178148614777799832547132, 11.37237044309941020825023181952, 12.45987383937424874038080001140

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