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Properties

Label 2-2e8-32.13-c3-0-15
Degree $2$
Conductor $256$
Sign $0.568 + 0.822i$
Analytic cond. $15.1044$
Root an. cond. $3.88644$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (1.20 − 2.90i)3-s + (3.98 − 1.65i)5-s + (22.4 − 22.4i)7-s + (12.1 + 12.1i)9-s + (16.5 + 39.8i)11-s + (−17.9 − 7.42i)13-s − 13.5i·15-s − 45.9i·17-s + (25.0 + 10.3i)19-s + (−38.0 − 91.9i)21-s + (−40.3 − 40.3i)23-s + (−75.2 + 75.2i)25-s + (128. − 53.0i)27-s + (88.6 − 214. i)29-s + 260.·31-s + ⋯
L(s)  = 1  + (0.231 − 0.558i)3-s + (0.356 − 0.147i)5-s + (1.20 − 1.20i)7-s + (0.448 + 0.448i)9-s + (0.452 + 1.09i)11-s + (−0.382 − 0.158i)13-s − 0.233i·15-s − 0.656i·17-s + (0.301 + 0.125i)19-s + (−0.395 − 0.955i)21-s + (−0.365 − 0.365i)23-s + (−0.601 + 0.601i)25-s + (0.912 − 0.378i)27-s + (0.567 − 1.37i)29-s + 1.50·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 256 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.568 + 0.822i)\, \overline{\Lambda}(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 256 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & (0.568 + 0.822i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(256\)    =    \(2^{8}\)
Sign: $0.568 + 0.822i$
Analytic conductor: \(15.1044\)
Root analytic conductor: \(3.88644\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: $\chi_{256} (33, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 256,\ (\ :3/2),\ 0.568 + 0.822i)\)

Particular Values

\(L(2)\) \(\approx\) \(2.473871815\)
\(L(\frac12)\) \(\approx\) \(2.473871815\)
\(L(\frac{5}{2})\) 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 \( 1 + (-1.20 + 2.90i)T + (-19.0 - 19.0i)T^{2} \)
5 \( 1 + (-3.98 + 1.65i)T + (88.3 - 88.3i)T^{2} \)
7 \( 1 + (-22.4 + 22.4i)T - 343iT^{2} \)
11 \( 1 + (-16.5 - 39.8i)T + (-941. + 941. i)T^{2} \)
13 \( 1 + (17.9 + 7.42i)T + (1.55e3 + 1.55e3i)T^{2} \)
17 \( 1 + 45.9iT - 4.91e3T^{2} \)
19 \( 1 + (-25.0 - 10.3i)T + (4.85e3 + 4.85e3i)T^{2} \)
23 \( 1 + (40.3 + 40.3i)T + 1.21e4iT^{2} \)
29 \( 1 + (-88.6 + 214. i)T + (-1.72e4 - 1.72e4i)T^{2} \)
31 \( 1 - 260.T + 2.97e4T^{2} \)
37 \( 1 + (70.4 - 29.1i)T + (3.58e4 - 3.58e4i)T^{2} \)
41 \( 1 + (251. + 251. i)T + 6.89e4iT^{2} \)
43 \( 1 + (-95.7 - 231. i)T + (-5.62e4 + 5.62e4i)T^{2} \)
47 \( 1 - 15.5iT - 1.03e5T^{2} \)
53 \( 1 + (171. + 414. i)T + (-1.05e5 + 1.05e5i)T^{2} \)
59 \( 1 + (53.3 - 22.0i)T + (1.45e5 - 1.45e5i)T^{2} \)
61 \( 1 + (297. - 718. i)T + (-1.60e5 - 1.60e5i)T^{2} \)
67 \( 1 + (-377. + 911. i)T + (-2.12e5 - 2.12e5i)T^{2} \)
71 \( 1 + (359. - 359. i)T - 3.57e5iT^{2} \)
73 \( 1 + (-605. - 605. i)T + 3.89e5iT^{2} \)
79 \( 1 + 380. iT - 4.93e5T^{2} \)
83 \( 1 + (235. + 97.4i)T + (4.04e5 + 4.04e5i)T^{2} \)
89 \( 1 + (949. - 949. i)T - 7.04e5iT^{2} \)
97 \( 1 - 663.T + 9.12e5T^{2} \)
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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

−11.53883568984400398307793618803, −10.32721791777941431775911192193, −9.726444113420134691396307673798, −8.163599951471774657403658419562, −7.54306157662707307296584766285, −6.71237753464922633879791834243, −4.98745408751426364065991922440, −4.24691856411211311049507229142, −2.18694483461073096583717441599, −1.13506793449928699263278909570, 1.54149296422978240291284213872, 3.03521859094500460035533130604, 4.44149312171512819826123237234, 5.53306241596003897907657869861, 6.55157633725949712908805911797, 8.152168095889913263063689538125, 8.794799437486847927988825833911, 9.731242053435353540890532391435, 10.75538118867875550903558521494, 11.75723030581709358142633358984

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