Properties

Label 2-2856-1.1-c1-0-10
Degree $2$
Conductor $2856$
Sign $1$
Analytic cond. $22.8052$
Root an. cond. $4.77548$
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 − 7-s + 9-s + 2·13-s − 2·15-s + 17-s − 21-s − 25-s + 27-s + 2·29-s + 8·31-s + 2·35-s − 6·37-s + 2·39-s − 6·41-s + 4·43-s − 2·45-s + 49-s + 51-s + 14·53-s − 8·59-s + 14·61-s − 63-s − 4·65-s + 4·67-s + 8·71-s + ⋯
L(s)  = 1  + 0.577·3-s − 0.894·5-s − 0.377·7-s + 1/3·9-s + 0.554·13-s − 0.516·15-s + 0.242·17-s − 0.218·21-s − 1/5·25-s + 0.192·27-s + 0.371·29-s + 1.43·31-s + 0.338·35-s − 0.986·37-s + 0.320·39-s − 0.937·41-s + 0.609·43-s − 0.298·45-s + 1/7·49-s + 0.140·51-s + 1.92·53-s − 1.04·59-s + 1.79·61-s − 0.125·63-s − 0.496·65-s + 0.488·67-s + 0.949·71-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 2856 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 2856 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(2856\)    =    \(2^{3} \cdot 3 \cdot 7 \cdot 17\)
Sign: $1$
Analytic conductor: \(22.8052\)
Root analytic conductor: \(4.77548\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 2856,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.798268217\)
\(L(\frac12)\) \(\approx\) \(1.798268217\)
\(L(\frac{3}{2})\) 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 \( 1 - T \)
7 \( 1 + T \)
17 \( 1 - T \)
good5 \( 1 + 2 T + p T^{2} \)
11 \( 1 + p T^{2} \)
13 \( 1 - 2 T + p T^{2} \)
19 \( 1 + p T^{2} \)
23 \( 1 + p T^{2} \)
29 \( 1 - 2 T + p T^{2} \)
31 \( 1 - 8 T + p T^{2} \)
37 \( 1 + 6 T + p T^{2} \)
41 \( 1 + 6 T + p T^{2} \)
43 \( 1 - 4 T + p T^{2} \)
47 \( 1 + p T^{2} \)
53 \( 1 - 14 T + p T^{2} \)
59 \( 1 + 8 T + p T^{2} \)
61 \( 1 - 14 T + p T^{2} \)
67 \( 1 - 4 T + p T^{2} \)
71 \( 1 - 8 T + p T^{2} \)
73 \( 1 - 10 T + p T^{2} \)
79 \( 1 - 8 T + p T^{2} \)
83 \( 1 + 16 T + p T^{2} \)
89 \( 1 - 2 T + p T^{2} \)
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

−8.455731945072633336414656016150, −8.293523860811542037254609471509, −7.29504998230991219563900037857, −6.70141229159940842717593963790, −5.74399564630477680169234153812, −4.71126394239504219168220825871, −3.84431934253247134888356945886, −3.28615585654671725260821047345, −2.21359341558133614477796467457, −0.806546035797645823668139895748, 0.806546035797645823668139895748, 2.21359341558133614477796467457, 3.28615585654671725260821047345, 3.84431934253247134888356945886, 4.71126394239504219168220825871, 5.74399564630477680169234153812, 6.70141229159940842717593963790, 7.29504998230991219563900037857, 8.293523860811542037254609471509, 8.455731945072633336414656016150

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