Properties

Label 2-197-1.1-c1-0-8
Degree $2$
Conductor $197$
Sign $-1$
Analytic cond. $1.57305$
Root an. cond. $1.25421$
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  − 2·2-s + 2·4-s − 3·7-s − 3·9-s + 4·11-s − 2·13-s + 6·14-s − 4·16-s − 8·17-s + 6·18-s − 3·19-s − 8·22-s − 3·23-s − 5·25-s + 4·26-s − 6·28-s + 7·29-s − 10·31-s + 8·32-s + 16·34-s − 6·36-s + 7·37-s + 6·38-s + 9·41-s + 43-s + 8·44-s + 6·46-s + ⋯
L(s)  = 1  − 1.41·2-s + 4-s − 1.13·7-s − 9-s + 1.20·11-s − 0.554·13-s + 1.60·14-s − 16-s − 1.94·17-s + 1.41·18-s − 0.688·19-s − 1.70·22-s − 0.625·23-s − 25-s + 0.784·26-s − 1.13·28-s + 1.29·29-s − 1.79·31-s + 1.41·32-s + 2.74·34-s − 36-s + 1.15·37-s + 0.973·38-s + 1.40·41-s + 0.152·43-s + 1.20·44-s + 0.884·46-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 197 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 197 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(197\)
Sign: $-1$
Analytic conductor: \(1.57305\)
Root analytic conductor: \(1.25421\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 197,\ (\ :1/2),\ -1)\)

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)$
bad197 \( 1 + T \)
good2 \( 1 + p T + p T^{2} \)
3 \( 1 + p T^{2} \)
5 \( 1 + p T^{2} \)
7 \( 1 + 3 T + p T^{2} \)
11 \( 1 - 4 T + p T^{2} \)
13 \( 1 + 2 T + p T^{2} \)
17 \( 1 + 8 T + p T^{2} \)
19 \( 1 + 3 T + p T^{2} \)
23 \( 1 + 3 T + p T^{2} \)
29 \( 1 - 7 T + p T^{2} \)
31 \( 1 + 10 T + p T^{2} \)
37 \( 1 - 7 T + p T^{2} \)
41 \( 1 - 9 T + p T^{2} \)
43 \( 1 - T + p T^{2} \)
47 \( 1 + 11 T + p T^{2} \)
53 \( 1 - 10 T + p T^{2} \)
59 \( 1 + p T^{2} \)
61 \( 1 - 5 T + p T^{2} \)
67 \( 1 + 10 T + p T^{2} \)
71 \( 1 - 8 T + p T^{2} \)
73 \( 1 - 6 T + p T^{2} \)
79 \( 1 - 2 T + p T^{2} \)
83 \( 1 + 7 T + p T^{2} \)
89 \( 1 + 8 T + p T^{2} \)
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

−11.63768790626971835185556947749, −10.87939044119722991367373344739, −9.670505384884660391398822501321, −9.141663261808505731463150219631, −8.282753935470816342481418791481, −6.92472041340395206972505718477, −6.17591940844279569664203110179, −4.15785519193072071590213469433, −2.33277116067346011831864956690, 0, 2.33277116067346011831864956690, 4.15785519193072071590213469433, 6.17591940844279569664203110179, 6.92472041340395206972505718477, 8.282753935470816342481418791481, 9.141663261808505731463150219631, 9.670505384884660391398822501321, 10.87939044119722991367373344739, 11.63768790626971835185556947749

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