Properties

Label 2-138-1.1-c1-0-3
Degree $2$
Conductor $138$
Sign $1$
Analytic cond. $1.10193$
Root an. cond. $1.04973$
Motivic weight $1$
Arithmetic yes
Rational no
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 + 1.23·5-s + 6-s − 4.47·7-s + 8-s + 9-s + 1.23·10-s − 5.23·11-s + 12-s + 4.47·13-s − 4.47·14-s + 1.23·15-s + 16-s − 4·17-s + 18-s + 5.70·19-s + 1.23·20-s − 4.47·21-s − 5.23·22-s + 23-s + 24-s − 3.47·25-s + 4.47·26-s + 27-s − 4.47·28-s + ⋯
L(s)  = 1  + 0.707·2-s + 0.577·3-s + 0.5·4-s + 0.552·5-s + 0.408·6-s − 1.69·7-s + 0.353·8-s + 0.333·9-s + 0.390·10-s − 1.57·11-s + 0.288·12-s + 1.24·13-s − 1.19·14-s + 0.319·15-s + 0.250·16-s − 0.970·17-s + 0.235·18-s + 1.30·19-s + 0.276·20-s − 0.975·21-s − 1.11·22-s + 0.208·23-s + 0.204·24-s − 0.694·25-s + 0.877·26-s + 0.192·27-s − 0.845·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 138 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 138 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(138\)    =    \(2 \cdot 3 \cdot 23\)
Sign: $1$
Analytic conductor: \(1.10193\)
Root analytic conductor: \(1.04973\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 138,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.729189778\)
\(L(\frac12)\) \(\approx\) \(1.729189778\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - T \)
3 \( 1 - T \)
23 \( 1 - T \)
good5 \( 1 - 1.23T + 5T^{2} \)
7 \( 1 + 4.47T + 7T^{2} \)
11 \( 1 + 5.23T + 11T^{2} \)
13 \( 1 - 4.47T + 13T^{2} \)
17 \( 1 + 4T + 17T^{2} \)
19 \( 1 - 5.70T + 19T^{2} \)
29 \( 1 + 4.47T + 29T^{2} \)
31 \( 1 + 2.47T + 31T^{2} \)
37 \( 1 - 11.2T + 37T^{2} \)
41 \( 1 + 2T + 41T^{2} \)
43 \( 1 + 4.76T + 43T^{2} \)
47 \( 1 - 4T + 47T^{2} \)
53 \( 1 - 5.23T + 53T^{2} \)
59 \( 1 + 8.94T + 59T^{2} \)
61 \( 1 - 0.763T + 61T^{2} \)
67 \( 1 - 9.70T + 67T^{2} \)
71 \( 1 - 8.94T + 71T^{2} \)
73 \( 1 + 4.47T + 73T^{2} \)
79 \( 1 - 4.47T + 79T^{2} \)
83 \( 1 - 13.2T + 83T^{2} \)
89 \( 1 + 10.4T + 89T^{2} \)
97 \( 1 - 0.472T + 97T^{2} \)
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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

−13.40296048666462235060175432377, −12.70448990159139527853431844986, −11.14362763232515860468997403072, −10.05246709441275187518308746240, −9.202728600148604334408875181294, −7.72541587566694873137775243372, −6.47449226925070426969624600597, −5.49721333017287637529615359721, −3.67905541281235520547812236276, −2.59871371115670108510936022230, 2.59871371115670108510936022230, 3.67905541281235520547812236276, 5.49721333017287637529615359721, 6.47449226925070426969624600597, 7.72541587566694873137775243372, 9.202728600148604334408875181294, 10.05246709441275187518308746240, 11.14362763232515860468997403072, 12.70448990159139527853431844986, 13.40296048666462235060175432377

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