Properties

Label 2-15-1.1-c17-0-9
Degree $2$
Conductor $15$
Sign $-1$
Analytic cond. $27.4833$
Root an. cond. $5.24245$
Motivic weight $17$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 702.·2-s + 6.56e3·3-s + 3.62e5·4-s + 3.90e5·5-s − 4.60e6·6-s − 2.67e6·7-s − 1.62e8·8-s + 4.30e7·9-s − 2.74e8·10-s − 9.86e8·11-s + 2.37e9·12-s + 2.81e9·13-s + 1.87e9·14-s + 2.56e9·15-s + 6.66e10·16-s + 1.28e10·17-s − 3.02e10·18-s − 1.22e11·19-s + 1.41e11·20-s − 1.75e10·21-s + 6.92e11·22-s + 1.14e11·23-s − 1.06e12·24-s + 1.52e11·25-s − 1.97e12·26-s + 2.82e11·27-s − 9.69e11·28-s + ⋯
L(s)  = 1  − 1.94·2-s + 0.577·3-s + 2.76·4-s + 0.447·5-s − 1.12·6-s − 0.175·7-s − 3.42·8-s + 0.333·9-s − 0.867·10-s − 1.38·11-s + 1.59·12-s + 0.957·13-s + 0.340·14-s + 0.258·15-s + 3.87·16-s + 0.446·17-s − 0.646·18-s − 1.65·19-s + 1.23·20-s − 0.101·21-s + 2.69·22-s + 0.305·23-s − 1.97·24-s + 0.200·25-s − 1.85·26-s + 0.192·27-s − 0.484·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 15 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(18-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 15 ^{s/2} \, \Gamma_{\C}(s+17/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(15\)    =    \(3 \cdot 5\)
Sign: $-1$
Analytic conductor: \(27.4833\)
Root analytic conductor: \(5.24245\)
Motivic weight: \(17\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 15,\ (\ :17/2),\ -1)\)

Particular Values

\(L(9)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{19}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 - 6.56e3T \)
5 \( 1 - 3.90e5T \)
good2 \( 1 + 702.T + 1.31e5T^{2} \)
7 \( 1 + 2.67e6T + 2.32e14T^{2} \)
11 \( 1 + 9.86e8T + 5.05e17T^{2} \)
13 \( 1 - 2.81e9T + 8.65e18T^{2} \)
17 \( 1 - 1.28e10T + 8.27e20T^{2} \)
19 \( 1 + 1.22e11T + 5.48e21T^{2} \)
23 \( 1 - 1.14e11T + 1.41e23T^{2} \)
29 \( 1 + 4.90e12T + 7.25e24T^{2} \)
31 \( 1 - 7.64e12T + 2.25e25T^{2} \)
37 \( 1 - 3.18e12T + 4.56e26T^{2} \)
41 \( 1 + 5.53e12T + 2.61e27T^{2} \)
43 \( 1 - 2.42e13T + 5.87e27T^{2} \)
47 \( 1 + 5.82e13T + 2.66e28T^{2} \)
53 \( 1 + 6.45e14T + 2.05e29T^{2} \)
59 \( 1 + 1.04e12T + 1.27e30T^{2} \)
61 \( 1 + 1.56e15T + 2.24e30T^{2} \)
67 \( 1 - 1.31e15T + 1.10e31T^{2} \)
71 \( 1 + 7.09e15T + 2.96e31T^{2} \)
73 \( 1 + 1.17e16T + 4.74e31T^{2} \)
79 \( 1 + 7.14e15T + 1.81e32T^{2} \)
83 \( 1 - 9.04e15T + 4.21e32T^{2} \)
89 \( 1 + 1.16e16T + 1.37e33T^{2} \)
97 \( 1 + 8.32e16T + 5.95e33T^{2} \)
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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

−15.08974885145552067027826954698, −12.96179831693279076617456057667, −10.97650862413778942238206170504, −10.01220666376025558806813991229, −8.745350747949046446918439387358, −7.76089882839977728686029426365, −6.20556377686049608903008253241, −2.84017545143651075186639676318, −1.61711192957939357791759863108, 0, 1.61711192957939357791759863108, 2.84017545143651075186639676318, 6.20556377686049608903008253241, 7.76089882839977728686029426365, 8.745350747949046446918439387358, 10.01220666376025558806813991229, 10.97650862413778942238206170504, 12.96179831693279076617456057667, 15.08974885145552067027826954698

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