Properties

Label 2-228-1.1-c1-0-0
Degree $2$
Conductor $228$
Sign $1$
Analytic cond. $1.82058$
Root an. cond. $1.34929$
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  − 3-s + 2·5-s + 9-s + 2·11-s + 2·13-s − 2·15-s + 6·17-s − 19-s + 2·23-s − 25-s − 27-s + 4·29-s − 8·31-s − 2·33-s − 2·37-s − 2·39-s − 8·41-s − 8·43-s + 2·45-s + 2·47-s − 7·49-s − 6·51-s − 4·53-s + 4·55-s + 57-s + 2·61-s + 4·65-s + ⋯
L(s)  = 1  − 0.577·3-s + 0.894·5-s + 1/3·9-s + 0.603·11-s + 0.554·13-s − 0.516·15-s + 1.45·17-s − 0.229·19-s + 0.417·23-s − 1/5·25-s − 0.192·27-s + 0.742·29-s − 1.43·31-s − 0.348·33-s − 0.328·37-s − 0.320·39-s − 1.24·41-s − 1.21·43-s + 0.298·45-s + 0.291·47-s − 49-s − 0.840·51-s − 0.549·53-s + 0.539·55-s + 0.132·57-s + 0.256·61-s + 0.496·65-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 228 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 228 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(228\)    =    \(2^{2} \cdot 3 \cdot 19\)
Sign: $1$
Analytic conductor: \(1.82058\)
Root analytic conductor: \(1.34929\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 228,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.238193981\)
\(L(\frac12)\) \(\approx\) \(1.238193981\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 + T \)
19 \( 1 + T \)
good5 \( 1 - 2 T + p T^{2} \)
7 \( 1 + p T^{2} \)
11 \( 1 - 2 T + p T^{2} \)
13 \( 1 - 2 T + p T^{2} \)
17 \( 1 - 6 T + p T^{2} \)
23 \( 1 - 2 T + p T^{2} \)
29 \( 1 - 4 T + p T^{2} \)
31 \( 1 + 8 T + p T^{2} \)
37 \( 1 + 2 T + p T^{2} \)
41 \( 1 + 8 T + p T^{2} \)
43 \( 1 + 8 T + p T^{2} \)
47 \( 1 - 2 T + p T^{2} \)
53 \( 1 + 4 T + p T^{2} \)
59 \( 1 + p T^{2} \)
61 \( 1 - 2 T + p T^{2} \)
67 \( 1 - 12 T + p T^{2} \)
71 \( 1 + 4 T + p T^{2} \)
73 \( 1 - 6 T + p T^{2} \)
79 \( 1 + 16 T + p T^{2} \)
83 \( 1 - 6 T + p T^{2} \)
89 \( 1 + p T^{2} \)
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

−12.19970228386202906162935861460, −11.27298065234336220825066097717, −10.23756701541404993955921048072, −9.519824281945706153386589648338, −8.336263881925856474820476225443, −6.95937341559717252012161118029, −6.00528925290387781663305320049, −5.11512058941944572023463227823, −3.51636850061813590584504045751, −1.55947103904026918949790889898, 1.55947103904026918949790889898, 3.51636850061813590584504045751, 5.11512058941944572023463227823, 6.00528925290387781663305320049, 6.95937341559717252012161118029, 8.336263881925856474820476225443, 9.519824281945706153386589648338, 10.23756701541404993955921048072, 11.27298065234336220825066097717, 12.19970228386202906162935861460

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