Properties

Label 2-480-8.5-c1-0-6
Degree $2$
Conductor $480$
Sign $-0.474 + 0.880i$
Analytic cond. $3.83281$
Root an. cond. $1.95775$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + i·3-s i·5-s − 4.68·7-s − 9-s − 2.29i·11-s − 4.97i·13-s + 15-s − 2.97·17-s − 2.68i·19-s − 4.68i·21-s − 2.68·23-s − 25-s i·27-s + 2i·29-s + 6.97·31-s + ⋯
L(s)  = 1  + 0.577i·3-s − 0.447i·5-s − 1.77·7-s − 0.333·9-s − 0.691i·11-s − 1.38i·13-s + 0.258·15-s − 0.722·17-s − 0.616i·19-s − 1.02i·21-s − 0.560·23-s − 0.200·25-s − 0.192i·27-s + 0.371i·29-s + 1.25·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 480 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.474 + 0.880i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 480 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.474 + 0.880i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(480\)    =    \(2^{5} \cdot 3 \cdot 5\)
Sign: $-0.474 + 0.880i$
Analytic conductor: \(3.83281\)
Root analytic conductor: \(1.95775\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{480} (241, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 480,\ (\ :1/2),\ -0.474 + 0.880i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.277095 - 0.464334i\)
\(L(\frac12)\) \(\approx\) \(0.277095 - 0.464334i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 - iT \)
5 \( 1 + iT \)
good7 \( 1 + 4.68T + 7T^{2} \)
11 \( 1 + 2.29iT - 11T^{2} \)
13 \( 1 + 4.97iT - 13T^{2} \)
17 \( 1 + 2.97T + 17T^{2} \)
19 \( 1 + 2.68iT - 19T^{2} \)
23 \( 1 + 2.68T + 23T^{2} \)
29 \( 1 - 2iT - 29T^{2} \)
31 \( 1 - 6.97T + 31T^{2} \)
37 \( 1 - 4.39iT - 37T^{2} \)
41 \( 1 + 11.3T + 41T^{2} \)
43 \( 1 + 9.37iT - 43T^{2} \)
47 \( 1 + 7.27T + 47T^{2} \)
53 \( 1 + 2iT - 53T^{2} \)
59 \( 1 + 1.70iT - 59T^{2} \)
61 \( 1 - 4.58iT - 61T^{2} \)
67 \( 1 + 4iT - 67T^{2} \)
71 \( 1 + 0.585T + 71T^{2} \)
73 \( 1 + 6T + 73T^{2} \)
79 \( 1 + 1.02T + 79T^{2} \)
83 \( 1 - 13.3iT - 83T^{2} \)
89 \( 1 - 3.37T + 89T^{2} \)
97 \( 1 + 3.95T + 97T^{2} \)
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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

−10.37907892712245691631589318761, −9.964670976261923512075273488451, −8.950665628101220495679353764531, −8.256937188863111744350471035141, −6.81675580218907457479090101108, −6.00319611029417306373406977669, −5.00054450372563706682042124835, −3.63477127794108134686480423389, −2.86469834856782493836041934656, −0.30777006703300730784593818120, 2.04794629328115188020690145350, 3.25991723543608920073604704656, 4.43096201317840401233505175560, 6.17783426882993611343289390709, 6.56930010474206238332695508003, 7.39084872249469296557237697923, 8.664910071832801087706570949208, 9.656900934031127957986118156355, 10.15265002605815629689099595589, 11.47785047901264266710102779233

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