Properties

Label 2-2e8-8.3-c10-0-8
Degree $2$
Conductor $256$
Sign $-0.707 - 0.707i$
Analytic cond. $162.651$
Root an. cond. $12.7534$
Motivic weight $10$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 214.·3-s + 3.26e3i·5-s + 5.80e3i·7-s − 1.30e4·9-s − 2.71e5·11-s − 5.57e5i·13-s − 6.99e5i·15-s − 7.95e5·17-s + 4.01e6·19-s − 1.24e6i·21-s − 7.93e6i·23-s − 8.92e5·25-s + 1.54e7·27-s + 7.81e6i·29-s + 1.15e7i·31-s + ⋯
L(s)  = 1  − 0.882·3-s + 1.04i·5-s + 0.345i·7-s − 0.221·9-s − 1.68·11-s − 1.50i·13-s − 0.921i·15-s − 0.560·17-s + 1.62·19-s − 0.304i·21-s − 1.23i·23-s − 0.0913·25-s + 1.07·27-s + 0.380i·29-s + 0.403i·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 256 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.707 - 0.707i)\, \overline{\Lambda}(11-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 256 ^{s/2} \, \Gamma_{\C}(s+5) \, L(s)\cr =\mathstrut & (-0.707 - 0.707i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(256\)    =    \(2^{8}\)
Sign: $-0.707 - 0.707i$
Analytic conductor: \(162.651\)
Root analytic conductor: \(12.7534\)
Motivic weight: \(10\)
Rational: no
Arithmetic: yes
Character: $\chi_{256} (127, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 256,\ (\ :5),\ -0.707 - 0.707i)\)

Particular Values

\(L(\frac{11}{2})\) \(\approx\) \(0.5558860947\)
\(L(\frac12)\) \(\approx\) \(0.5558860947\)
\(L(6)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
good3 \( 1 + 214.T + 5.90e4T^{2} \)
5 \( 1 - 3.26e3iT - 9.76e6T^{2} \)
7 \( 1 - 5.80e3iT - 2.82e8T^{2} \)
11 \( 1 + 2.71e5T + 2.59e10T^{2} \)
13 \( 1 + 5.57e5iT - 1.37e11T^{2} \)
17 \( 1 + 7.95e5T + 2.01e12T^{2} \)
19 \( 1 - 4.01e6T + 6.13e12T^{2} \)
23 \( 1 + 7.93e6iT - 4.14e13T^{2} \)
29 \( 1 - 7.81e6iT - 4.20e14T^{2} \)
31 \( 1 - 1.15e7iT - 8.19e14T^{2} \)
37 \( 1 - 1.07e8iT - 4.80e15T^{2} \)
41 \( 1 - 5.82e7T + 1.34e16T^{2} \)
43 \( 1 + 7.58e7T + 2.16e16T^{2} \)
47 \( 1 + 1.19e8iT - 5.25e16T^{2} \)
53 \( 1 - 4.68e8iT - 1.74e17T^{2} \)
59 \( 1 - 8.13e8T + 5.11e17T^{2} \)
61 \( 1 + 4.39e8iT - 7.13e17T^{2} \)
67 \( 1 - 1.14e9T + 1.82e18T^{2} \)
71 \( 1 - 9.19e6iT - 3.25e18T^{2} \)
73 \( 1 - 8.89e8T + 4.29e18T^{2} \)
79 \( 1 + 5.96e9iT - 9.46e18T^{2} \)
83 \( 1 + 2.00e8T + 1.55e19T^{2} \)
89 \( 1 + 7.64e9T + 3.11e19T^{2} \)
97 \( 1 + 6.43e9T + 7.37e19T^{2} \)
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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

−10.56289975430782832506624507955, −10.16109040372158087892050500388, −8.523430248191291708906736457423, −7.61461264305806792627538238797, −6.58919539774743624219503143329, −5.55270618378689062583974569285, −5.01613115594627024051108328158, −3.04958205886335981880485522087, −2.66372519884926624051966017998, −0.74378965659792302965774525757, 0.18381499270780500152385522133, 1.11530766382270203413704503954, 2.43987244670096111835724034919, 4.01472305750945746070312972475, 5.15457376812855627207653688124, 5.53551258475058756212709038174, 6.94336799145090970504210624384, 7.909219158140485819880922515561, 9.015667060620956152061164001971, 9.864911384254445516966399611209

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