Properties

Label 2-23-1.1-c15-0-21
Degree $2$
Conductor $23$
Sign $-1$
Analytic cond. $32.8195$
Root an. cond. $5.72883$
Motivic weight $15$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 150.·2-s + 3.98e3·3-s − 1.00e4·4-s + 3.47e5·5-s − 6.00e5·6-s − 3.26e6·7-s + 6.45e6·8-s + 1.53e6·9-s − 5.23e7·10-s − 2.77e7·11-s − 4.01e7·12-s − 3.36e8·13-s + 4.91e8·14-s + 1.38e9·15-s − 6.41e8·16-s − 5.77e8·17-s − 2.31e8·18-s + 2.00e9·19-s − 3.50e9·20-s − 1.30e10·21-s + 4.18e9·22-s + 3.40e9·23-s + 2.57e10·24-s + 9.04e10·25-s + 5.06e10·26-s − 5.10e10·27-s + 3.29e10·28-s + ⋯
L(s)  = 1  − 0.832·2-s + 1.05·3-s − 0.307·4-s + 1.99·5-s − 0.875·6-s − 1.49·7-s + 1.08·8-s + 0.107·9-s − 1.65·10-s − 0.429·11-s − 0.323·12-s − 1.48·13-s + 1.24·14-s + 2.09·15-s − 0.597·16-s − 0.341·17-s − 0.0891·18-s + 0.514·19-s − 0.612·20-s − 1.57·21-s + 0.357·22-s + 0.208·23-s + 1.14·24-s + 2.96·25-s + 1.23·26-s − 0.939·27-s + 0.460·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 23 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(16-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 23 ^{s/2} \, \Gamma_{\C}(s+15/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(23\)
Sign: $-1$
Analytic conductor: \(32.8195\)
Root analytic conductor: \(5.72883\)
Motivic weight: \(15\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 23,\ (\ :15/2),\ -1)\)

Particular Values

\(L(8)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{17}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad23 \( 1 - 3.40e9T \)
good2 \( 1 + 150.T + 3.27e4T^{2} \)
3 \( 1 - 3.98e3T + 1.43e7T^{2} \)
5 \( 1 - 3.47e5T + 3.05e10T^{2} \)
7 \( 1 + 3.26e6T + 4.74e12T^{2} \)
11 \( 1 + 2.77e7T + 4.17e15T^{2} \)
13 \( 1 + 3.36e8T + 5.11e16T^{2} \)
17 \( 1 + 5.77e8T + 2.86e18T^{2} \)
19 \( 1 - 2.00e9T + 1.51e19T^{2} \)
29 \( 1 + 1.29e11T + 8.62e21T^{2} \)
31 \( 1 - 6.03e10T + 2.34e22T^{2} \)
37 \( 1 + 4.00e11T + 3.33e23T^{2} \)
41 \( 1 + 5.39e11T + 1.55e24T^{2} \)
43 \( 1 + 3.54e12T + 3.17e24T^{2} \)
47 \( 1 + 1.77e12T + 1.20e25T^{2} \)
53 \( 1 - 2.01e12T + 7.31e25T^{2} \)
59 \( 1 - 2.80e13T + 3.65e26T^{2} \)
61 \( 1 - 5.22e12T + 6.02e26T^{2} \)
67 \( 1 + 1.64e12T + 2.46e27T^{2} \)
71 \( 1 + 4.70e13T + 5.87e27T^{2} \)
73 \( 1 + 1.27e14T + 8.90e27T^{2} \)
79 \( 1 - 2.90e13T + 2.91e28T^{2} \)
83 \( 1 + 3.01e14T + 6.11e28T^{2} \)
89 \( 1 - 1.09e14T + 1.74e29T^{2} \)
97 \( 1 + 7.46e14T + 6.33e29T^{2} \)
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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

−13.53773300489707393976844507033, −13.05257726606059600663371139249, −10.02297854064309165899004206124, −9.708362218945288415552678072406, −8.789309304514693854735713352848, −7.01297018674707746971289902570, −5.35130228534398035864251135475, −2.97041397530628435804988910903, −1.90589232499104398521118079262, 0, 1.90589232499104398521118079262, 2.97041397530628435804988910903, 5.35130228534398035864251135475, 7.01297018674707746971289902570, 8.789309304514693854735713352848, 9.708362218945288415552678072406, 10.02297854064309165899004206124, 13.05257726606059600663371139249, 13.53773300489707393976844507033

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