Properties

Label 2-1215-15.14-c0-0-5
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  + 1.53·2-s + 1.34·4-s + 5-s + 0.532·8-s + 1.53·10-s − 0.532·16-s − 1.87·17-s − 1.87·19-s + 1.34·20-s + 0.347·23-s + 25-s + 1.53·31-s − 1.34·32-s − 2.87·34-s − 2.87·38-s + 0.532·40-s + 0.532·46-s − 47-s + 49-s + 1.53·50-s + 0.347·53-s + 1.53·61-s + 2.34·62-s − 1.53·64-s − 2.53·68-s − 2.53·76-s + 0.347·79-s + ⋯
L(s)  = 1  + 1.53·2-s + 1.34·4-s + 5-s + 0.532·8-s + 1.53·10-s − 0.532·16-s − 1.87·17-s − 1.87·19-s + 1.34·20-s + 0.347·23-s + 25-s + 1.53·31-s − 1.34·32-s − 2.87·34-s − 2.87·38-s + 0.532·40-s + 0.532·46-s − 47-s + 49-s + 1.53·50-s + 0.347·53-s + 1.53·61-s + 2.34·62-s − 1.53·64-s − 2.53·68-s − 2.53·76-s + 0.347·79-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

\(L(\frac{1}{2})\) \(\approx\) \(2.495009264\)
\(L(\frac12)\) \(\approx\) \(2.495009264\)
\(L(1)\) 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 \( 1 - 1.53T + T^{2} \)
7 \( 1 - T^{2} \)
11 \( 1 - T^{2} \)
13 \( 1 - T^{2} \)
17 \( 1 + 1.87T + T^{2} \)
19 \( 1 + 1.87T + T^{2} \)
23 \( 1 - 0.347T + T^{2} \)
29 \( 1 - T^{2} \)
31 \( 1 - 1.53T + T^{2} \)
37 \( 1 - T^{2} \)
41 \( 1 - T^{2} \)
43 \( 1 - T^{2} \)
47 \( 1 + T + T^{2} \)
53 \( 1 - 0.347T + T^{2} \)
59 \( 1 - T^{2} \)
61 \( 1 - 1.53T + T^{2} \)
67 \( 1 - T^{2} \)
71 \( 1 - T^{2} \)
73 \( 1 - T^{2} \)
79 \( 1 - 0.347T + T^{2} \)
83 \( 1 + 1.87T + T^{2} \)
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

−10.14202842759512648916719090726, −9.041142430985860727971389945400, −8.440280289745963349038572417020, −6.75516531538851974719475848834, −6.54746387037460936748054246189, −5.64159988645922915140656906872, −4.69352110432006148169491239553, −4.13289750210627650038671715678, −2.73111280456924107711235754465, −2.07239124287941235897836437531, 2.07239124287941235897836437531, 2.73111280456924107711235754465, 4.13289750210627650038671715678, 4.69352110432006148169491239553, 5.64159988645922915140656906872, 6.54746387037460936748054246189, 6.75516531538851974719475848834, 8.440280289745963349038572417020, 9.041142430985860727971389945400, 10.14202842759512648916719090726

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