Properties

Label 2-23-1.1-c7-0-3
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  − 21.3·2-s + 86.9·3-s + 326.·4-s − 188.·5-s − 1.85e3·6-s + 639.·7-s − 4.21e3·8-s + 5.37e3·9-s + 4.01e3·10-s − 1.62e3·11-s + 2.83e4·12-s + 1.13e3·13-s − 1.36e4·14-s − 1.63e4·15-s + 4.81e4·16-s + 2.87e4·17-s − 1.14e5·18-s + 4.33e4·19-s − 6.13e4·20-s + 5.55e4·21-s + 3.47e4·22-s − 1.21e4·23-s − 3.66e5·24-s − 4.26e4·25-s − 2.42e4·26-s + 2.77e5·27-s + 2.08e5·28-s + ⋯
L(s)  = 1  − 1.88·2-s + 1.85·3-s + 2.54·4-s − 0.673·5-s − 3.50·6-s + 0.704·7-s − 2.91·8-s + 2.45·9-s + 1.26·10-s − 0.369·11-s + 4.73·12-s + 0.143·13-s − 1.32·14-s − 1.25·15-s + 2.94·16-s + 1.41·17-s − 4.62·18-s + 1.45·19-s − 1.71·20-s + 1.30·21-s + 0.695·22-s − 0.208·23-s − 5.41·24-s − 0.546·25-s − 0.270·26-s + 2.70·27-s + 1.79·28-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

\(L(4)\) \(\approx\) \(1.318518265\)
\(L(\frac12)\) \(\approx\) \(1.318518265\)
\(L(\frac{9}{2})\) 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 \( 1 + 21.3T + 128T^{2} \)
3 \( 1 - 86.9T + 2.18e3T^{2} \)
5 \( 1 + 188.T + 7.81e4T^{2} \)
7 \( 1 - 639.T + 8.23e5T^{2} \)
11 \( 1 + 1.62e3T + 1.94e7T^{2} \)
13 \( 1 - 1.13e3T + 6.27e7T^{2} \)
17 \( 1 - 2.87e4T + 4.10e8T^{2} \)
19 \( 1 - 4.33e4T + 8.93e8T^{2} \)
29 \( 1 - 6.25e4T + 1.72e10T^{2} \)
31 \( 1 - 2.25e4T + 2.75e10T^{2} \)
37 \( 1 + 2.77e5T + 9.49e10T^{2} \)
41 \( 1 + 1.30e5T + 1.94e11T^{2} \)
43 \( 1 - 5.85e5T + 2.71e11T^{2} \)
47 \( 1 + 9.93e4T + 5.06e11T^{2} \)
53 \( 1 + 6.36e5T + 1.17e12T^{2} \)
59 \( 1 + 8.08e5T + 2.48e12T^{2} \)
61 \( 1 + 2.40e6T + 3.14e12T^{2} \)
67 \( 1 + 2.05e6T + 6.06e12T^{2} \)
71 \( 1 + 3.83e6T + 9.09e12T^{2} \)
73 \( 1 + 2.78e6T + 1.10e13T^{2} \)
79 \( 1 - 7.20e6T + 1.92e13T^{2} \)
83 \( 1 + 4.98e5T + 2.71e13T^{2} \)
89 \( 1 + 1.37e6T + 4.42e13T^{2} \)
97 \( 1 - 6.57e6T + 8.07e13T^{2} \)
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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

−16.15821995775842894143313504374, −15.35790106991966895930914167237, −14.14401604960006415928744428096, −11.96388702822136759585299076883, −10.26785853857219203134328582703, −9.165011928292588613190795287007, −7.945361692501585490004942454128, −7.58554788445951761117113362692, −3.11629785224852303842550341662, −1.43375652739866954972433886572, 1.43375652739866954972433886572, 3.11629785224852303842550341662, 7.58554788445951761117113362692, 7.945361692501585490004942454128, 9.165011928292588613190795287007, 10.26785853857219203134328582703, 11.96388702822136759585299076883, 14.14401604960006415928744428096, 15.35790106991966895930914167237, 16.15821995775842894143313504374

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