Properties

Label 2-2e8-8.5-c11-0-19
Degree $2$
Conductor $256$
Sign $0.707 - 0.707i$
Analytic cond. $196.695$
Root an. cond. $14.0248$
Motivic weight $11$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 252i·3-s − 4.83e3i·5-s − 1.67e4·7-s + 1.13e5·9-s + 5.34e5i·11-s − 5.77e5i·13-s − 1.21e6·15-s − 6.90e6·17-s − 1.06e7i·19-s + 4.21e6i·21-s + 1.86e7·23-s + 2.54e7·25-s − 7.32e7i·27-s + 1.28e8i·29-s + 5.28e7·31-s + ⋯
L(s)  = 1  − 0.598i·3-s − 0.691i·5-s − 0.376·7-s + 0.641·9-s + 1.00i·11-s − 0.431i·13-s − 0.413·15-s − 1.17·17-s − 0.987i·19-s + 0.225i·21-s + 0.603·23-s + 0.522·25-s − 0.982i·27-s + 1.16i·29-s + 0.331·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 256 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.707 - 0.707i)\, \overline{\Lambda}(12-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 256 ^{s/2} \, \Gamma_{\C}(s+11/2) \, L(s)\cr =\mathstrut & (0.707 - 0.707i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(256\)    =    \(2^{8}\)
Sign: $0.707 - 0.707i$
Analytic conductor: \(196.695\)
Root analytic conductor: \(14.0248\)
Motivic weight: \(11\)
Rational: no
Arithmetic: yes
Character: $\chi_{256} (129, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 256,\ (\ :11/2),\ 0.707 - 0.707i)\)

Particular Values

\(L(6)\) \(\approx\) \(1.288626048\)
\(L(\frac12)\) \(\approx\) \(1.288626048\)
\(L(\frac{13}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
good3 \( 1 + 252iT - 1.77e5T^{2} \)
5 \( 1 + 4.83e3iT - 4.88e7T^{2} \)
7 \( 1 + 1.67e4T + 1.97e9T^{2} \)
11 \( 1 - 5.34e5iT - 2.85e11T^{2} \)
13 \( 1 + 5.77e5iT - 1.79e12T^{2} \)
17 \( 1 + 6.90e6T + 3.42e13T^{2} \)
19 \( 1 + 1.06e7iT - 1.16e14T^{2} \)
23 \( 1 - 1.86e7T + 9.52e14T^{2} \)
29 \( 1 - 1.28e8iT - 1.22e16T^{2} \)
31 \( 1 - 5.28e7T + 2.54e16T^{2} \)
37 \( 1 - 1.82e8iT - 1.77e17T^{2} \)
41 \( 1 + 3.08e8T + 5.50e17T^{2} \)
43 \( 1 + 1.71e7iT - 9.29e17T^{2} \)
47 \( 1 + 2.68e9T + 2.47e18T^{2} \)
53 \( 1 - 1.59e9iT - 9.26e18T^{2} \)
59 \( 1 + 5.18e9iT - 3.01e19T^{2} \)
61 \( 1 - 6.95e9iT - 4.35e19T^{2} \)
67 \( 1 - 1.54e10iT - 1.22e20T^{2} \)
71 \( 1 - 9.79e9T + 2.31e20T^{2} \)
73 \( 1 + 1.46e9T + 3.13e20T^{2} \)
79 \( 1 + 3.81e10T + 7.47e20T^{2} \)
83 \( 1 - 2.93e10iT - 1.28e21T^{2} \)
89 \( 1 - 2.49e10T + 2.77e21T^{2} \)
97 \( 1 - 7.50e10T + 7.15e21T^{2} \)
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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

−10.09479967444332525489769812338, −9.207563170040078152390852981130, −8.311116383857843091805938795767, −7.07986097582953690230067374025, −6.64469725118933602054312574032, −5.06594749294738643306624568092, −4.41456391195861380599807709557, −2.91173470468591732081188984091, −1.76125828178235687614137117867, −0.877951678224608963549428872326, 0.26850148502161962956684556524, 1.70396001903830614937971375314, 2.98999816005231214810755462090, 3.83582879713174529311086421371, 4.85047076342488262504368836395, 6.20013731246991136439281385951, 6.86296186434113181525262622710, 8.111524905897855970367087523617, 9.171153495070175514402933997218, 10.01511132424486856980426091956

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