Properties

Label 2-775-31.30-c0-0-2
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  + 2-s + 7-s − 8-s + 9-s + 14-s − 16-s + 18-s − 19-s + 31-s − 38-s − 41-s − 2·47-s − 56-s − 59-s + 62-s + 63-s + 64-s − 2·67-s − 71-s − 72-s + 81-s − 82-s − 2·94-s + 97-s − 101-s + 103-s + 107-s + ⋯
L(s)  = 1  + 2-s + 7-s − 8-s + 9-s + 14-s − 16-s + 18-s − 19-s + 31-s − 38-s − 41-s − 2·47-s − 56-s − 59-s + 62-s + 63-s + 64-s − 2·67-s − 71-s − 72-s + 81-s − 82-s − 2·94-s + 97-s − 101-s + 103-s + 107-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

\(L(\frac{1}{2})\) \(\approx\) \(1.536076732\)
\(L(\frac12)\) \(\approx\) \(1.536076732\)
\(L(1)\) 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 \( 1 - T + T^{2} \)
3 \( ( 1 - T )( 1 + T ) \)
7 \( 1 - T + T^{2} \)
11 \( ( 1 - T )( 1 + T ) \)
13 \( ( 1 - T )( 1 + T ) \)
17 \( ( 1 - T )( 1 + T ) \)
19 \( 1 + T + T^{2} \)
23 \( ( 1 - T )( 1 + T ) \)
29 \( ( 1 - T )( 1 + T ) \)
37 \( ( 1 - T )( 1 + T ) \)
41 \( 1 + T + T^{2} \)
43 \( ( 1 - T )( 1 + T ) \)
47 \( ( 1 + T )^{2} \)
53 \( ( 1 - T )( 1 + T ) \)
59 \( 1 + T + T^{2} \)
61 \( ( 1 - T )( 1 + T ) \)
67 \( ( 1 + T )^{2} \)
71 \( 1 + T + T^{2} \)
73 \( ( 1 - T )( 1 + T ) \)
79 \( ( 1 - T )( 1 + T ) \)
83 \( ( 1 - T )( 1 + T ) \)
89 \( ( 1 - T )( 1 + T ) \)
97 \( 1 - T + T^{2} \)
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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

−10.60207216092712049351813564487, −9.752888595693298027823635203168, −8.720318221556186303223990781652, −7.967866030054034793429210542006, −6.83938356318854760055426335786, −5.96960166913563088305977798827, −4.74321072403891555671782504313, −4.48460650250333228109131475536, −3.24769481617007627267457235770, −1.77434508073061900636698426098, 1.77434508073061900636698426098, 3.24769481617007627267457235770, 4.48460650250333228109131475536, 4.74321072403891555671782504313, 5.96960166913563088305977798827, 6.83938356318854760055426335786, 7.967866030054034793429210542006, 8.720318221556186303223990781652, 9.752888595693298027823635203168, 10.60207216092712049351813564487

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