Properties

Label 2-387-1.1-c1-0-0
Degree $2$
Conductor $387$
Sign $1$
Analytic cond. $3.09021$
Root an. cond. $1.75789$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 2.23·2-s + 3.00·4-s − 2.92·5-s − 4.53·7-s − 2.23·8-s + 6.53·10-s − 2.92·11-s + 6.53·13-s + 10.1·14-s − 0.999·16-s + 5.84·17-s − 4.53·19-s − 8.76·20-s + 6.53·22-s − 1.36·23-s + 3.53·25-s − 14.6·26-s − 13.5·28-s + 8.76·29-s + 6.70·32-s − 13.0·34-s + 13.2·35-s + 6·37-s + 10.1·38-s + 6.53·40-s − 2.73·41-s + 43-s + ⋯
L(s)  = 1  − 1.58·2-s + 1.50·4-s − 1.30·5-s − 1.71·7-s − 0.790·8-s + 2.06·10-s − 0.880·11-s + 1.81·13-s + 2.70·14-s − 0.249·16-s + 1.41·17-s − 1.03·19-s − 1.95·20-s + 1.39·22-s − 0.285·23-s + 0.706·25-s − 2.86·26-s − 2.56·28-s + 1.62·29-s + 1.18·32-s − 2.24·34-s + 2.23·35-s + 0.986·37-s + 1.64·38-s + 1.03·40-s − 0.427·41-s + 0.152·43-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 387 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 387 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(387\)    =    \(3^{2} \cdot 43\)
Sign: $1$
Analytic conductor: \(3.09021\)
Root analytic conductor: \(1.75789\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 387,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(0.3423160817\)
\(L(\frac12)\) \(\approx\) \(0.3423160817\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 \)
43 \( 1 - T \)
good2 \( 1 + 2.23T + 2T^{2} \)
5 \( 1 + 2.92T + 5T^{2} \)
7 \( 1 + 4.53T + 7T^{2} \)
11 \( 1 + 2.92T + 11T^{2} \)
13 \( 1 - 6.53T + 13T^{2} \)
17 \( 1 - 5.84T + 17T^{2} \)
19 \( 1 + 4.53T + 19T^{2} \)
23 \( 1 + 1.36T + 23T^{2} \)
29 \( 1 - 8.76T + 29T^{2} \)
31 \( 1 + 31T^{2} \)
37 \( 1 - 6T + 37T^{2} \)
41 \( 1 + 2.73T + 41T^{2} \)
47 \( 1 - 8.76T + 47T^{2} \)
53 \( 1 + 2.73T + 53T^{2} \)
59 \( 1 + 1.36T + 59T^{2} \)
61 \( 1 + 2T + 61T^{2} \)
67 \( 1 - 4T + 67T^{2} \)
71 \( 1 - 8.58T + 71T^{2} \)
73 \( 1 - 6T + 73T^{2} \)
79 \( 1 - 1.06T + 79T^{2} \)
83 \( 1 + 0.181T + 83T^{2} \)
89 \( 1 + 13.4T + 89T^{2} \)
97 \( 1 - 5.46T + 97T^{2} \)
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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

−10.90839992106195292131572637903, −10.36236630063817418284463915158, −9.478761048070657621834356888994, −8.410803957991474353690906943493, −7.991495840515746777319303353173, −6.88670325313102896314747784482, −6.03989450760335877616139084727, −3.98849088192269929744398063112, −2.95107136744493106427557794945, −0.69446508809997354212904422255, 0.69446508809997354212904422255, 2.95107136744493106427557794945, 3.98849088192269929744398063112, 6.03989450760335877616139084727, 6.88670325313102896314747784482, 7.991495840515746777319303353173, 8.410803957991474353690906943493, 9.478761048070657621834356888994, 10.36236630063817418284463915158, 10.90839992106195292131572637903

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