Properties

Label 2-775-31.30-c0-0-0
Degree $2$
Conductor $775$
Sign $1$
Analytic cond. $0.386775$
Root an. cond. $0.621912$
Motivic weight $0$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 4-s + 9-s + 16-s + 2·19-s − 31-s − 36-s + 2·41-s − 49-s − 2·59-s − 64-s − 2·71-s − 2·76-s + 81-s − 2·101-s + 2·109-s + ⋯
L(s)  = 1  − 4-s + 9-s + 16-s + 2·19-s − 31-s − 36-s + 2·41-s − 49-s − 2·59-s − 64-s − 2·71-s − 2·76-s + 81-s − 2·101-s + 2·109-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 775 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 775 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(775\)    =    \(5^{2} \cdot 31\)
Sign: $1$
Analytic conductor: \(0.386775\)
Root analytic conductor: \(0.621912\)
Motivic weight: \(0\)
Rational: yes
Arithmetic: yes
Character: $\chi_{775} (526, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 775,\ (\ :0),\ 1)\)

Particular Values

\(L(\frac{1}{2})\) \(\approx\) \(0.8601852130\)
\(L(\frac12)\) \(\approx\) \(0.8601852130\)
\(L(1)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad5 \( 1 \)
31 \( 1 + T \)
good2 \( 1 + T^{2} \)
3 \( ( 1 - T )( 1 + T ) \)
7 \( 1 + T^{2} \)
11 \( ( 1 - T )( 1 + T ) \)
13 \( ( 1 - T )( 1 + T ) \)
17 \( ( 1 - T )( 1 + T ) \)
19 \( ( 1 - T )^{2} \)
23 \( ( 1 - T )( 1 + T ) \)
29 \( ( 1 - T )( 1 + T ) \)
37 \( ( 1 - T )( 1 + T ) \)
41 \( ( 1 - T )^{2} \)
43 \( ( 1 - T )( 1 + T ) \)
47 \( 1 + T^{2} \)
53 \( ( 1 - T )( 1 + T ) \)
59 \( ( 1 + T )^{2} \)
61 \( ( 1 - T )( 1 + T ) \)
67 \( 1 + T^{2} \)
71 \( ( 1 + T )^{2} \)
73 \( ( 1 - T )( 1 + T ) \)
79 \( ( 1 - T )( 1 + T ) \)
83 \( ( 1 - T )( 1 + T ) \)
89 \( ( 1 - T )( 1 + T ) \)
97 \( 1 + T^{2} \)
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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

−10.31612093946658127259255558600, −9.541611021326968732479624752316, −9.085181641310256509398098267720, −7.81881361926206685741979837580, −7.32176227966105889816011844902, −5.96346535895264340008388180143, −5.04498077952826148969029517906, −4.19292349190697612429970149170, −3.17798117511538719524909227738, −1.31769369520299349910855832753, 1.31769369520299349910855832753, 3.17798117511538719524909227738, 4.19292349190697612429970149170, 5.04498077952826148969029517906, 5.96346535895264340008388180143, 7.32176227966105889816011844902, 7.81881361926206685741979837580, 9.085181641310256509398098267720, 9.541611021326968732479624752316, 10.31612093946658127259255558600

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