Properties

Label 2-23-1.1-c7-0-6
Degree $2$
Conductor $23$
Sign $1$
Analytic cond. $7.18485$
Root an. cond. $2.68045$
Motivic weight $7$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 19.9·2-s − 76.4·3-s + 270.·4-s + 522.·5-s − 1.52e3·6-s + 653.·7-s + 2.83e3·8-s + 3.65e3·9-s + 1.04e4·10-s − 4.33e3·11-s − 2.06e4·12-s − 1.03e3·13-s + 1.30e4·14-s − 3.99e4·15-s + 2.20e4·16-s − 4.91e3·17-s + 7.29e4·18-s − 1.65e4·19-s + 1.41e5·20-s − 4.99e4·21-s − 8.65e4·22-s − 1.21e4·23-s − 2.16e5·24-s + 1.94e5·25-s − 2.07e4·26-s − 1.12e5·27-s + 1.76e5·28-s + ⋯
L(s)  = 1  + 1.76·2-s − 1.63·3-s + 2.11·4-s + 1.86·5-s − 2.88·6-s + 0.720·7-s + 1.95·8-s + 1.67·9-s + 3.29·10-s − 0.982·11-s − 3.45·12-s − 0.131·13-s + 1.27·14-s − 3.05·15-s + 1.34·16-s − 0.242·17-s + 2.94·18-s − 0.554·19-s + 3.94·20-s − 1.17·21-s − 1.73·22-s − 0.208·23-s − 3.20·24-s + 2.49·25-s − 0.231·26-s − 1.09·27-s + 1.52·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 23 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(8-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 23 ^{s/2} \, \Gamma_{\C}(s+7/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(23\)
Sign: $1$
Analytic conductor: \(7.18485\)
Root analytic conductor: \(2.68045\)
Motivic weight: \(7\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 23,\ (\ :7/2),\ 1)\)

Particular Values

\(L(4)\) \(\approx\) \(3.480837952\)
\(L(\frac12)\) \(\approx\) \(3.480837952\)
\(L(\frac{9}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad23 \( 1 + 1.21e4T \)
good2 \( 1 - 19.9T + 128T^{2} \)
3 \( 1 + 76.4T + 2.18e3T^{2} \)
5 \( 1 - 522.T + 7.81e4T^{2} \)
7 \( 1 - 653.T + 8.23e5T^{2} \)
11 \( 1 + 4.33e3T + 1.94e7T^{2} \)
13 \( 1 + 1.03e3T + 6.27e7T^{2} \)
17 \( 1 + 4.91e3T + 4.10e8T^{2} \)
19 \( 1 + 1.65e4T + 8.93e8T^{2} \)
29 \( 1 + 1.05e5T + 1.72e10T^{2} \)
31 \( 1 - 6.79e3T + 2.75e10T^{2} \)
37 \( 1 + 4.07e5T + 9.49e10T^{2} \)
41 \( 1 - 6.14e5T + 1.94e11T^{2} \)
43 \( 1 + 6.07e5T + 2.71e11T^{2} \)
47 \( 1 + 9.07e5T + 5.06e11T^{2} \)
53 \( 1 - 8.81e5T + 1.17e12T^{2} \)
59 \( 1 - 1.60e6T + 2.48e12T^{2} \)
61 \( 1 - 1.21e6T + 3.14e12T^{2} \)
67 \( 1 - 7.83e5T + 6.06e12T^{2} \)
71 \( 1 - 3.54e5T + 9.09e12T^{2} \)
73 \( 1 - 2.41e6T + 1.10e13T^{2} \)
79 \( 1 + 4.43e6T + 1.92e13T^{2} \)
83 \( 1 - 8.13e6T + 2.71e13T^{2} \)
89 \( 1 - 4.11e6T + 4.42e13T^{2} \)
97 \( 1 - 3.08e6T + 8.07e13T^{2} \)
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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

−16.21598098620972702321722974187, −14.69717021553809380250040745683, −13.43395145994702219473435094054, −12.65719367177306433950605715443, −11.26032948431277262928526960215, −10.30111110503516797665916217096, −6.64304787831468955170627867474, −5.58388356391192602687096004770, −4.95411654581519345186945105889, −1.99628855199381729590217694891, 1.99628855199381729590217694891, 4.95411654581519345186945105889, 5.58388356391192602687096004770, 6.64304787831468955170627867474, 10.30111110503516797665916217096, 11.26032948431277262928526960215, 12.65719367177306433950605715443, 13.43395145994702219473435094054, 14.69717021553809380250040745683, 16.21598098620972702321722974187

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