Properties

Label 2-38-1.1-c1-0-0
Degree $2$
Conductor $38$
Sign $1$
Analytic cond. $0.303431$
Root an. cond. $0.550846$
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  − 2-s + 3-s + 4-s − 6-s − 7-s − 8-s − 2·9-s − 6·11-s + 12-s + 5·13-s + 14-s + 16-s + 3·17-s + 2·18-s + 19-s − 21-s + 6·22-s + 3·23-s − 24-s − 5·25-s − 5·26-s − 5·27-s − 28-s + 9·29-s − 4·31-s − 32-s − 6·33-s + ⋯
L(s)  = 1  − 0.707·2-s + 0.577·3-s + 1/2·4-s − 0.408·6-s − 0.377·7-s − 0.353·8-s − 2/3·9-s − 1.80·11-s + 0.288·12-s + 1.38·13-s + 0.267·14-s + 1/4·16-s + 0.727·17-s + 0.471·18-s + 0.229·19-s − 0.218·21-s + 1.27·22-s + 0.625·23-s − 0.204·24-s − 25-s − 0.980·26-s − 0.962·27-s − 0.188·28-s + 1.67·29-s − 0.718·31-s − 0.176·32-s − 1.04·33-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 38 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 38 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(38\)    =    \(2 \cdot 19\)
Sign: $1$
Analytic conductor: \(0.303431\)
Root analytic conductor: \(0.550846\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 38,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(0.6302107433\)
\(L(\frac12)\) \(\approx\) \(0.6302107433\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + T \)
19 \( 1 - T \)
good3 \( 1 - T + p T^{2} \)
5 \( 1 + p T^{2} \)
7 \( 1 + T + p T^{2} \)
11 \( 1 + 6 T + p T^{2} \)
13 \( 1 - 5 T + p T^{2} \)
17 \( 1 - 3 T + p T^{2} \)
23 \( 1 - 3 T + p T^{2} \)
29 \( 1 - 9 T + p T^{2} \)
31 \( 1 + 4 T + p T^{2} \)
37 \( 1 - 2 T + p T^{2} \)
41 \( 1 + p T^{2} \)
43 \( 1 - 8 T + p T^{2} \)
47 \( 1 + p T^{2} \)
53 \( 1 + 3 T + p T^{2} \)
59 \( 1 - 9 T + p T^{2} \)
61 \( 1 + 10 T + p T^{2} \)
67 \( 1 - 5 T + p T^{2} \)
71 \( 1 + 6 T + p T^{2} \)
73 \( 1 + 7 T + p T^{2} \)
79 \( 1 + 10 T + p T^{2} \)
83 \( 1 + 6 T + p T^{2} \)
89 \( 1 + 12 T + p T^{2} \)
97 \( 1 + 10 T + p T^{2} \)
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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

−16.22302156666961409355458160527, −15.51354522269081565751677762935, −14.02216922667742784390855478973, −12.90671167977020138547910461547, −11.24807629195878921565630077767, −10.09897479975324709020702728875, −8.684413720393242419277779815238, −7.73591843742988285704805588989, −5.81027585652647529822118508915, −2.99432139105097413830284496966, 2.99432139105097413830284496966, 5.81027585652647529822118508915, 7.73591843742988285704805588989, 8.684413720393242419277779815238, 10.09897479975324709020702728875, 11.24807629195878921565630077767, 12.90671167977020138547910461547, 14.02216922667742784390855478973, 15.51354522269081565751677762935, 16.22302156666961409355458160527

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