Properties

Label 2-2e8-4.3-c10-0-18
Degree $2$
Conductor $256$
Sign $i$
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  − 374. i·3-s − 5.15e3·5-s − 2.04e4i·7-s − 8.12e4·9-s + 2.70e5i·11-s − 1.59e5·13-s + 1.92e6i·15-s − 2.36e6·17-s − 3.01e5i·19-s − 7.65e6·21-s + 5.09e5i·23-s + 1.67e7·25-s + 8.30e6i·27-s + 1.59e6·29-s + 2.19e7i·31-s + ⋯
L(s)  = 1  − 1.54i·3-s − 1.64·5-s − 1.21i·7-s − 1.37·9-s + 1.68i·11-s − 0.429·13-s + 2.54i·15-s − 1.66·17-s − 0.121i·19-s − 1.87·21-s + 0.0791i·23-s + 1.71·25-s + 0.578i·27-s + 0.0775·29-s + 0.765i·31-s + ⋯

Functional equation

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

Invariants

Degree: \(2\)
Conductor: \(256\)    =    \(2^{8}\)
Sign: $i$
Analytic conductor: \(162.651\)
Root analytic conductor: \(12.7534\)
Motivic weight: \(10\)
Rational: no
Arithmetic: yes
Character: $\chi_{256} (255, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 256,\ (\ :5),\ i)\)

Particular Values

\(L(\frac{11}{2})\) \(\approx\) \(0.6194456882\)
\(L(\frac12)\) \(\approx\) \(0.6194456882\)
\(L(6)\) 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 \( 1 + 374. iT - 5.90e4T^{2} \)
5 \( 1 + 5.15e3T + 9.76e6T^{2} \)
7 \( 1 + 2.04e4iT - 2.82e8T^{2} \)
11 \( 1 - 2.70e5iT - 2.59e10T^{2} \)
13 \( 1 + 1.59e5T + 1.37e11T^{2} \)
17 \( 1 + 2.36e6T + 2.01e12T^{2} \)
19 \( 1 + 3.01e5iT - 6.13e12T^{2} \)
23 \( 1 - 5.09e5iT - 4.14e13T^{2} \)
29 \( 1 - 1.59e6T + 4.20e14T^{2} \)
31 \( 1 - 2.19e7iT - 8.19e14T^{2} \)
37 \( 1 - 6.44e7T + 4.80e15T^{2} \)
41 \( 1 + 9.46e7T + 1.34e16T^{2} \)
43 \( 1 - 1.15e7iT - 2.16e16T^{2} \)
47 \( 1 + 1.22e8iT - 5.25e16T^{2} \)
53 \( 1 + 3.36e8T + 1.74e17T^{2} \)
59 \( 1 - 5.71e8iT - 5.11e17T^{2} \)
61 \( 1 - 1.47e9T + 7.13e17T^{2} \)
67 \( 1 - 8.73e8iT - 1.82e18T^{2} \)
71 \( 1 - 2.55e9iT - 3.25e18T^{2} \)
73 \( 1 + 2.99e9T + 4.29e18T^{2} \)
79 \( 1 + 1.87e9iT - 9.46e18T^{2} \)
83 \( 1 + 5.53e8iT - 1.55e19T^{2} \)
89 \( 1 + 2.47e8T + 3.11e19T^{2} \)
97 \( 1 - 1.05e10T + 7.37e19T^{2} \)
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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

−10.15868930910022860317942324968, −8.642303010305697836264896882415, −7.69805620178197855051361118078, −7.11018030269793455223074406186, −6.77196609297339914323463139755, −4.69488711043311706953857200405, −4.01505358578452897415367364314, −2.52316596166491059454605288542, −1.39238936008326320508183915804, −0.34584081643471417599297740984, 0.34276661838187230559024925159, 2.63236649211819743236084660082, 3.51657308709716303758471171483, 4.32810383034020003525793655679, 5.22065899050241957784574928801, 6.37101306272222919800046570740, 7.997162317155557805791899813032, 8.690666667666099139138069825506, 9.323763405384072031679663488474, 10.72218801557149384690686168905

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