Properties

Label 2-228-1.1-c1-0-2
Degree $2$
Conductor $228$
Sign $1$
Analytic cond. $1.82058$
Root an. cond. $1.34929$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3-s + 4.37·5-s − 2.37·7-s + 9-s − 4.37·11-s + 2·13-s + 4.37·15-s − 4.37·17-s + 19-s − 2.37·21-s + 2.74·23-s + 14.1·25-s + 27-s − 8.74·29-s + 4.74·31-s − 4.37·33-s − 10.3·35-s − 6.74·37-s + 2·39-s − 2.37·43-s + 4.37·45-s − 7.62·47-s − 1.37·49-s − 4.37·51-s + 8.74·53-s − 19.1·55-s + 57-s + ⋯
L(s)  = 1  + 0.577·3-s + 1.95·5-s − 0.896·7-s + 0.333·9-s − 1.31·11-s + 0.554·13-s + 1.12·15-s − 1.06·17-s + 0.229·19-s − 0.517·21-s + 0.572·23-s + 2.82·25-s + 0.192·27-s − 1.62·29-s + 0.852·31-s − 0.761·33-s − 1.75·35-s − 1.10·37-s + 0.320·39-s − 0.361·43-s + 0.651·45-s − 1.11·47-s − 0.196·49-s − 0.612·51-s + 1.20·53-s − 2.57·55-s + 0.132·57-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: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 228,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.691281738\)
\(L(\frac12)\) \(\approx\) \(1.691281738\)
\(L(\frac{3}{2})\) 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 \( 1 - 4.37T + 5T^{2} \)
7 \( 1 + 2.37T + 7T^{2} \)
11 \( 1 + 4.37T + 11T^{2} \)
13 \( 1 - 2T + 13T^{2} \)
17 \( 1 + 4.37T + 17T^{2} \)
23 \( 1 - 2.74T + 23T^{2} \)
29 \( 1 + 8.74T + 29T^{2} \)
31 \( 1 - 4.74T + 31T^{2} \)
37 \( 1 + 6.74T + 37T^{2} \)
41 \( 1 + 41T^{2} \)
43 \( 1 + 2.37T + 43T^{2} \)
47 \( 1 + 7.62T + 47T^{2} \)
53 \( 1 - 8.74T + 53T^{2} \)
59 \( 1 + 59T^{2} \)
61 \( 1 + 8.37T + 61T^{2} \)
67 \( 1 - 13.4T + 67T^{2} \)
71 \( 1 + 12T + 71T^{2} \)
73 \( 1 - 0.372T + 73T^{2} \)
79 \( 1 - 8T + 79T^{2} \)
83 \( 1 + 2.74T + 83T^{2} \)
89 \( 1 - 3.25T + 89T^{2} \)
97 \( 1 - 14T + 97T^{2} \)
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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

−12.74495527959745433790785591282, −10.91566874243973867331741815141, −10.10473405641649195299306455158, −9.403901218778821671252801888359, −8.564694369666169277933712787216, −7.01685295635479423682123436759, −6.07571501726620236795664103014, −5.07471947894140600627574066538, −3.11087682315179490099576488506, −2.03234314274610698451890866583, 2.03234314274610698451890866583, 3.11087682315179490099576488506, 5.07471947894140600627574066538, 6.07571501726620236795664103014, 7.01685295635479423682123436759, 8.564694369666169277933712787216, 9.403901218778821671252801888359, 10.10473405641649195299306455158, 10.91566874243973867331741815141, 12.74495527959745433790785591282

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