Properties

Label 2-171-1.1-c1-0-4
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 $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2·2-s + 2·4-s − 5-s + 3·7-s − 2·10-s + 3·11-s − 6·13-s + 6·14-s − 4·16-s − 3·17-s − 19-s − 2·20-s + 6·22-s − 4·23-s − 4·25-s − 12·26-s + 6·28-s + 10·29-s + 2·31-s − 8·32-s − 6·34-s − 3·35-s + 8·37-s − 2·38-s + 8·41-s − 43-s + 6·44-s + ⋯
L(s)  = 1  + 1.41·2-s + 4-s − 0.447·5-s + 1.13·7-s − 0.632·10-s + 0.904·11-s − 1.66·13-s + 1.60·14-s − 16-s − 0.727·17-s − 0.229·19-s − 0.447·20-s + 1.27·22-s − 0.834·23-s − 4/5·25-s − 2.35·26-s + 1.13·28-s + 1.85·29-s + 0.359·31-s − 1.41·32-s − 1.02·34-s − 0.507·35-s + 1.31·37-s − 0.324·38-s + 1.24·41-s − 0.152·43-s + 0.904·44-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: \(0\)
Selberg data: \((2,\ 171,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.140174037\)
\(L(\frac12)\) \(\approx\) \(2.140174037\)
\(L(\frac{3}{2})\) 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 \( 1 - p T + p T^{2} \)
5 \( 1 + T + p T^{2} \)
7 \( 1 - 3 T + p T^{2} \)
11 \( 1 - 3 T + p T^{2} \)
13 \( 1 + 6 T + p T^{2} \)
17 \( 1 + 3 T + p T^{2} \)
23 \( 1 + 4 T + p T^{2} \)
29 \( 1 - 10 T + p T^{2} \)
31 \( 1 - 2 T + p T^{2} \)
37 \( 1 - 8 T + p T^{2} \)
41 \( 1 - 8 T + p T^{2} \)
43 \( 1 + T + p T^{2} \)
47 \( 1 + 3 T + p T^{2} \)
53 \( 1 - 6 T + p T^{2} \)
59 \( 1 + p T^{2} \)
61 \( 1 - 7 T + p T^{2} \)
67 \( 1 - 8 T + p T^{2} \)
71 \( 1 + 12 T + p T^{2} \)
73 \( 1 + 11 T + p T^{2} \)
79 \( 1 + p T^{2} \)
83 \( 1 + 4 T + p T^{2} \)
89 \( 1 + 10 T + p T^{2} \)
97 \( 1 + 2 T + p T^{2} \)
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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

−12.70402288938109990188600775185, −11.84438281704762988883998671737, −11.42285722847365155593370717983, −9.886397115513209246726221997818, −8.513296718878561122779255009178, −7.33179869161333338136909211767, −6.12831923497636436478284774657, −4.75227634922127063518685270995, −4.20883425493377341015603476651, −2.44031011733442394942262196334, 2.44031011733442394942262196334, 4.20883425493377341015603476651, 4.75227634922127063518685270995, 6.12831923497636436478284774657, 7.33179869161333338136909211767, 8.513296718878561122779255009178, 9.886397115513209246726221997818, 11.42285722847365155593370717983, 11.84438281704762988883998671737, 12.70402288938109990188600775185

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