Properties

Label 2-1215-15.14-c0-0-2
Degree $2$
Conductor $1215$
Sign $1$
Analytic cond. $0.606363$
Root an. cond. $0.778693$
Motivic weight $0$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 1.87·2-s + 2.53·4-s + 5-s − 2.87·8-s − 1.87·10-s + 2.87·16-s + 0.347·17-s + 0.347·19-s + 2.53·20-s + 1.53·23-s + 25-s − 1.87·31-s − 2.53·32-s − 0.652·34-s − 0.652·38-s − 2.87·40-s − 2.87·46-s − 47-s + 49-s − 1.87·50-s + 1.53·53-s − 1.87·61-s + 3.53·62-s + 1.87·64-s + 0.879·68-s + 0.879·76-s + 1.53·79-s + ⋯
L(s)  = 1  − 1.87·2-s + 2.53·4-s + 5-s − 2.87·8-s − 1.87·10-s + 2.87·16-s + 0.347·17-s + 0.347·19-s + 2.53·20-s + 1.53·23-s + 25-s − 1.87·31-s − 2.53·32-s − 0.652·34-s − 0.652·38-s − 2.87·40-s − 2.87·46-s − 47-s + 49-s − 1.87·50-s + 1.53·53-s − 1.87·61-s + 3.53·62-s + 1.87·64-s + 0.879·68-s + 0.879·76-s + 1.53·79-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1215 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1215 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1215\)    =    \(3^{5} \cdot 5\)
Sign: $1$
Analytic conductor: \(0.606363\)
Root analytic conductor: \(0.778693\)
Motivic weight: \(0\)
Rational: no
Arithmetic: yes
Character: $\chi_{1215} (1214, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 1215,\ (\ :0),\ 1)\)

Particular Values

\(L(\frac{1}{2})\) \(\approx\) \(0.5736665932\)
\(L(\frac12)\) \(\approx\) \(0.5736665932\)
\(L(1)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 \)
5 \( 1 - T \)
good2 \( 1 + 1.87T + T^{2} \)
7 \( 1 - T^{2} \)
11 \( 1 - T^{2} \)
13 \( 1 - T^{2} \)
17 \( 1 - 0.347T + T^{2} \)
19 \( 1 - 0.347T + T^{2} \)
23 \( 1 - 1.53T + T^{2} \)
29 \( 1 - T^{2} \)
31 \( 1 + 1.87T + T^{2} \)
37 \( 1 - T^{2} \)
41 \( 1 - T^{2} \)
43 \( 1 - T^{2} \)
47 \( 1 + T + T^{2} \)
53 \( 1 - 1.53T + T^{2} \)
59 \( 1 - T^{2} \)
61 \( 1 + 1.87T + T^{2} \)
67 \( 1 - T^{2} \)
71 \( 1 - T^{2} \)
73 \( 1 - T^{2} \)
79 \( 1 - 1.53T + T^{2} \)
83 \( 1 - 0.347T + T^{2} \)
89 \( 1 - T^{2} \)
97 \( 1 - T^{2} \)
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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

−9.697509774032243767733252134398, −9.185733023334604855733027574923, −8.610667495590115767976512760706, −7.52402586814344603989073733040, −6.97416443656283533655506106178, −6.05535709546618264787834007193, −5.19440990583355660462947601039, −3.25918029419843707722458492791, −2.21724250953410198289258372309, −1.19443623302098556629034947050, 1.19443623302098556629034947050, 2.21724250953410198289258372309, 3.25918029419843707722458492791, 5.19440990583355660462947601039, 6.05535709546618264787834007193, 6.97416443656283533655506106178, 7.52402586814344603989073733040, 8.610667495590115767976512760706, 9.185733023334604855733027574923, 9.697509774032243767733252134398

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