Properties

Label 1-23-23.22-r1-0-0
Degree $1$
Conductor $23$
Sign $1$
Analytic cond. $2.47169$
Root an. cond. $2.47169$
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 + 3-s + 4-s − 5-s + 6-s − 7-s + 8-s + 9-s − 10-s − 11-s + 12-s + 13-s − 14-s − 15-s + 16-s − 17-s + 18-s − 19-s − 20-s − 21-s − 22-s + 24-s + 25-s + 26-s + 27-s − 28-s + 29-s + ⋯
L(s)  = 1  + 2-s + 3-s + 4-s − 5-s + 6-s − 7-s + 8-s + 9-s − 10-s − 11-s + 12-s + 13-s − 14-s − 15-s + 16-s − 17-s + 18-s − 19-s − 20-s − 21-s − 22-s + 24-s + 25-s + 26-s + 27-s − 28-s + 29-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 23 ^{s/2} \, \Gamma_{\R}(s+1) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 23 ^{s/2} \, \Gamma_{\R}(s+1) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(1\)
Conductor: \(23\)
Sign: $1$
Analytic conductor: \(2.47169\)
Root analytic conductor: \(2.47169\)
Motivic weight: \(0\)
Rational: yes
Arithmetic: yes
Character: $\chi_{23} (22, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((1,\ 23,\ (1:\ ),\ 1)\)

Particular Values

\(L(\frac{1}{2})\) \(\approx\) \(2.455362513\)
\(L(\frac12)\) \(\approx\) \(2.455362513\)
\(L(1)\) \(\approx\) \(1.965202054\)
\(L(1)\) \(\approx\) \(1.965202054\)

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad23 \( 1 \)
good2 \( 1 + T \)
3 \( 1 + T \)
5 \( 1 - T \)
7 \( 1 - T \)
11 \( 1 - T \)
13 \( 1 + T \)
17 \( 1 - T \)
19 \( 1 - T \)
29 \( 1 + T \)
31 \( 1 + T \)
37 \( 1 - T \)
41 \( 1 + T \)
43 \( 1 - T \)
47 \( 1 + T \)
53 \( 1 - T \)
59 \( 1 + T \)
61 \( 1 - T \)
67 \( 1 - T \)
71 \( 1 + T \)
73 \( 1 + T \)
79 \( 1 - T \)
83 \( 1 - T \)
89 \( 1 - T \)
97 \( 1 - T \)
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   \(L(s) = \displaystyle\prod_p \ (1 - \alpha_{p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−38.68724240329872765497576852621, −37.96791783033085224078040530246, −36.07573583369179760813970017175, −34.87017245956883141460396113366, −33.15130794249205310083365342979, −31.91833869373659697245162297098, −31.25469395122993651116980291877, −30.10171925835832877824003242347, −28.5028654987024245497552475716, −26.48639123783683881594192774017, −25.462561010482497667429215273674, −23.94644729526781844527668854668, −22.87407602346311971158763595981, −21.20360225639625471304374327961, −19.98776684788736769840436487917, −18.98593120269587444083248143723, −15.93810136734798316256870844575, −15.38556073359858098799258622111, −13.60413172473855533286025588645, −12.581696786969624525139642734401, −10.63387123021858563292939521079, −8.334849030124398104335730457447, −6.731189150719542313772896829694, −4.21518980422971907980891242449, −2.871339848930367916555243647734, 2.871339848930367916555243647734, 4.21518980422971907980891242449, 6.731189150719542313772896829694, 8.334849030124398104335730457447, 10.63387123021858563292939521079, 12.581696786969624525139642734401, 13.60413172473855533286025588645, 15.38556073359858098799258622111, 15.93810136734798316256870844575, 18.98593120269587444083248143723, 19.98776684788736769840436487917, 21.20360225639625471304374327961, 22.87407602346311971158763595981, 23.94644729526781844527668854668, 25.462561010482497667429215273674, 26.48639123783683881594192774017, 28.5028654987024245497552475716, 30.10171925835832877824003242347, 31.25469395122993651116980291877, 31.91833869373659697245162297098, 33.15130794249205310083365342979, 34.87017245956883141460396113366, 36.07573583369179760813970017175, 37.96791783033085224078040530246, 38.68724240329872765497576852621

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