Properties

Label 2-56-1.1-c1-0-0
Degree $2$
Conductor $56$
Sign $1$
Analytic cond. $0.447162$
Root an. cond. $0.668701$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

Related objects

Downloads

Learn more

Normalization:  

Dirichlet series

L(s)  = 1  + 2·5-s − 7-s − 3·9-s − 4·11-s + 2·13-s − 6·17-s + 8·19-s − 25-s + 6·29-s + 8·31-s − 2·35-s − 2·37-s + 2·41-s − 4·43-s − 6·45-s − 8·47-s + 49-s + 6·53-s − 8·55-s − 6·61-s + 3·63-s + 4·65-s − 4·67-s − 8·71-s + 10·73-s + 4·77-s + 16·79-s + ⋯
L(s)  = 1  + 0.894·5-s − 0.377·7-s − 9-s − 1.20·11-s + 0.554·13-s − 1.45·17-s + 1.83·19-s − 1/5·25-s + 1.11·29-s + 1.43·31-s − 0.338·35-s − 0.328·37-s + 0.312·41-s − 0.609·43-s − 0.894·45-s − 1.16·47-s + 1/7·49-s + 0.824·53-s − 1.07·55-s − 0.768·61-s + 0.377·63-s + 0.496·65-s − 0.488·67-s − 0.949·71-s + 1.17·73-s + 0.455·77-s + 1.80·79-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 56 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 56 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(56\)    =    \(2^{3} \cdot 7\)
Sign: $1$
Analytic conductor: \(0.447162\)
Root analytic conductor: \(0.668701\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 56,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(0.8745483141\)
\(L(\frac12)\) \(\approx\) \(0.8745483141\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
7 \( 1 + T \)
good3 \( 1 + p T^{2} \)
5 \( 1 - 2 T + p T^{2} \)
11 \( 1 + 4 T + p T^{2} \)
13 \( 1 - 2 T + p T^{2} \)
17 \( 1 + 6 T + p T^{2} \)
19 \( 1 - 8 T + p T^{2} \)
23 \( 1 + p T^{2} \)
29 \( 1 - 6 T + p T^{2} \)
31 \( 1 - 8 T + p T^{2} \)
37 \( 1 + 2 T + p T^{2} \)
41 \( 1 - 2 T + p T^{2} \)
43 \( 1 + 4 T + p T^{2} \)
47 \( 1 + 8 T + p T^{2} \)
53 \( 1 - 6 T + p T^{2} \)
59 \( 1 + p T^{2} \)
61 \( 1 + 6 T + p T^{2} \)
67 \( 1 + 4 T + p T^{2} \)
71 \( 1 + 8 T + p T^{2} \)
73 \( 1 - 10 T + p T^{2} \)
79 \( 1 - 16 T + p T^{2} \)
83 \( 1 - 8 T + p T^{2} \)
89 \( 1 + 6 T + p T^{2} \)
97 \( 1 + 6 T + p T^{2} \)
show more
show less
   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{2} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−15.41323382474483111142553586928, −13.77746713200327219211224912285, −13.45094853660694360023256897823, −11.84146297682028690633889717654, −10.60224244605800499935670328540, −9.457349313423188294666539437989, −8.188420417684287628984093773695, −6.42262084813563967264199691637, −5.22316409435338364257345412913, −2.79183800612725741835263061431, 2.79183800612725741835263061431, 5.22316409435338364257345412913, 6.42262084813563967264199691637, 8.188420417684287628984093773695, 9.457349313423188294666539437989, 10.60224244605800499935670328540, 11.84146297682028690633889717654, 13.45094853660694360023256897823, 13.77746713200327219211224912285, 15.41323382474483111142553586928

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