Properties

Label 2-2e8-32.13-c3-0-7
Degree $2$
Conductor $256$
Sign $-0.173 - 0.984i$
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  + (−1.90 + 4.59i)3-s + (−0.188 + 0.0782i)5-s + (11.4 − 11.4i)7-s + (1.63 + 1.63i)9-s + (18.6 + 45.0i)11-s + (−18.9 − 7.84i)13-s − 1.01i·15-s − 85.7i·17-s + (110. + 45.8i)19-s + (30.6 + 74.0i)21-s + (74.2 + 74.2i)23-s + (−88.3 + 88.3i)25-s + (−134. + 55.7i)27-s + (−64.4 + 155. i)29-s − 36.6·31-s + ⋯
L(s)  = 1  + (−0.365 + 0.883i)3-s + (−0.0168 + 0.00699i)5-s + (0.616 − 0.616i)7-s + (0.0603 + 0.0603i)9-s + (0.511 + 1.23i)11-s + (−0.404 − 0.167i)13-s − 0.0174i·15-s − 1.22i·17-s + (1.33 + 0.553i)19-s + (0.318 + 0.769i)21-s + (0.672 + 0.672i)23-s + (−0.706 + 0.706i)25-s + (−0.958 + 0.397i)27-s + (−0.412 + 0.996i)29-s − 0.212·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 256 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.173 - 0.984i)\, \overline{\Lambda}(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 256 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & (-0.173 - 0.984i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(256\)    =    \(2^{8}\)
Sign: $-0.173 - 0.984i$
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: \((2,\ 256,\ (\ :3/2),\ -0.173 - 0.984i)\)

Particular Values

\(L(2)\) \(\approx\) \(1.588784507\)
\(L(\frac12)\) \(\approx\) \(1.588784507\)
\(L(\frac{5}{2})\) 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 \( 1 + (1.90 - 4.59i)T + (-19.0 - 19.0i)T^{2} \)
5 \( 1 + (0.188 - 0.0782i)T + (88.3 - 88.3i)T^{2} \)
7 \( 1 + (-11.4 + 11.4i)T - 343iT^{2} \)
11 \( 1 + (-18.6 - 45.0i)T + (-941. + 941. i)T^{2} \)
13 \( 1 + (18.9 + 7.84i)T + (1.55e3 + 1.55e3i)T^{2} \)
17 \( 1 + 85.7iT - 4.91e3T^{2} \)
19 \( 1 + (-110. - 45.8i)T + (4.85e3 + 4.85e3i)T^{2} \)
23 \( 1 + (-74.2 - 74.2i)T + 1.21e4iT^{2} \)
29 \( 1 + (64.4 - 155. i)T + (-1.72e4 - 1.72e4i)T^{2} \)
31 \( 1 + 36.6T + 2.97e4T^{2} \)
37 \( 1 + (313. - 129. i)T + (3.58e4 - 3.58e4i)T^{2} \)
41 \( 1 + (-196. - 196. i)T + 6.89e4iT^{2} \)
43 \( 1 + (20.8 + 50.4i)T + (-5.62e4 + 5.62e4i)T^{2} \)
47 \( 1 - 508. iT - 1.03e5T^{2} \)
53 \( 1 + (73.8 + 178. i)T + (-1.05e5 + 1.05e5i)T^{2} \)
59 \( 1 + (-40.9 + 16.9i)T + (1.45e5 - 1.45e5i)T^{2} \)
61 \( 1 + (-324. + 784. i)T + (-1.60e5 - 1.60e5i)T^{2} \)
67 \( 1 + (49.4 - 119. i)T + (-2.12e5 - 2.12e5i)T^{2} \)
71 \( 1 + (-362. + 362. i)T - 3.57e5iT^{2} \)
73 \( 1 + (-239. - 239. i)T + 3.89e5iT^{2} \)
79 \( 1 - 1.01e3iT - 4.93e5T^{2} \)
83 \( 1 + (-231. - 95.7i)T + (4.04e5 + 4.04e5i)T^{2} \)
89 \( 1 + (-1.10e3 + 1.10e3i)T - 7.04e5iT^{2} \)
97 \( 1 + 74.0T + 9.12e5T^{2} \)
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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

−11.59292044465929692947079867159, −10.93307795112072381304205560687, −9.748300333678502230985221923644, −9.465502290784181384923609996758, −7.65537019110399737348132625818, −7.12769634450123805054407529930, −5.28027205886666459799780007043, −4.72897365683879521246930623602, −3.49633757262252579963467213503, −1.50762029029422897670460072494, 0.71289226682364925028417110686, 2.09075414737137470726037507271, 3.78777710543343367854157820894, 5.39587478058117182475062391423, 6.23549657264626931759216974296, 7.28859962416336582572196732695, 8.330789448683984546368820336390, 9.195389134249687084203776360891, 10.54624737316403706058215425448, 11.67272557289200142700180693719

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