Properties

Label 2-2e8-256.101-c1-0-17
Degree $2$
Conductor $256$
Sign $0.551 + 0.834i$
Analytic cond. $2.04417$
Root an. cond. $1.42974$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (1.36 − 0.372i)2-s + (−3.30 + 0.828i)3-s + (1.72 − 1.01i)4-s + (0.400 + 0.189i)5-s + (−4.20 + 2.35i)6-s + (−1.08 − 3.59i)7-s + (1.97 − 2.02i)8-s + (7.59 − 4.06i)9-s + (0.617 + 0.109i)10-s + (4.48 − 0.665i)11-s + (−4.85 + 4.78i)12-s + (−0.364 + 1.01i)13-s + (−2.82 − 4.49i)14-s + (−1.48 − 0.294i)15-s + (1.93 − 3.49i)16-s + (1.44 − 0.288i)17-s + ⋯
L(s)  = 1  + (0.964 − 0.263i)2-s + (−1.90 + 0.478i)3-s + (0.861 − 0.507i)4-s + (0.179 + 0.0847i)5-s + (−1.71 + 0.963i)6-s + (−0.411 − 1.35i)7-s + (0.697 − 0.716i)8-s + (2.53 − 1.35i)9-s + (0.195 + 0.0346i)10-s + (1.35 − 0.200i)11-s + (−1.40 + 1.38i)12-s + (−0.101 + 0.282i)13-s + (−0.754 − 1.20i)14-s + (−0.382 − 0.0760i)15-s + (0.484 − 0.874i)16-s + (0.351 − 0.0698i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 256 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.551 + 0.834i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 256 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.551 + 0.834i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(256\)    =    \(2^{8}\)
Sign: $0.551 + 0.834i$
Analytic conductor: \(2.04417\)
Root analytic conductor: \(1.42974\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{256} (101, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 256,\ (\ :1/2),\ 0.551 + 0.834i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.15496 - 0.621276i\)
\(L(\frac12)\) \(\approx\) \(1.15496 - 0.621276i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + (-1.36 + 0.372i)T \)
good3 \( 1 + (3.30 - 0.828i)T + (2.64 - 1.41i)T^{2} \)
5 \( 1 + (-0.400 - 0.189i)T + (3.17 + 3.86i)T^{2} \)
7 \( 1 + (1.08 + 3.59i)T + (-5.82 + 3.88i)T^{2} \)
11 \( 1 + (-4.48 + 0.665i)T + (10.5 - 3.19i)T^{2} \)
13 \( 1 + (0.364 - 1.01i)T + (-10.0 - 8.24i)T^{2} \)
17 \( 1 + (-1.44 + 0.288i)T + (15.7 - 6.50i)T^{2} \)
19 \( 1 + (1.25 + 1.13i)T + (1.86 + 18.9i)T^{2} \)
23 \( 1 + (5.33 - 0.525i)T + (22.5 - 4.48i)T^{2} \)
29 \( 1 + (-0.0286 - 0.0385i)T + (-8.41 + 27.7i)T^{2} \)
31 \( 1 + (-3.40 - 1.40i)T + (21.9 + 21.9i)T^{2} \)
37 \( 1 + (0.284 - 5.78i)T + (-36.8 - 3.62i)T^{2} \)
41 \( 1 + (-3.68 + 4.48i)T + (-7.99 - 40.2i)T^{2} \)
43 \( 1 + (0.0410 - 0.163i)T + (-37.9 - 20.2i)T^{2} \)
47 \( 1 + (-9.19 - 6.14i)T + (17.9 + 43.4i)T^{2} \)
53 \( 1 + (0.738 - 0.996i)T + (-15.3 - 50.7i)T^{2} \)
59 \( 1 + (0.541 + 1.51i)T + (-45.6 + 37.4i)T^{2} \)
61 \( 1 + (3.34 - 5.57i)T + (-28.7 - 53.7i)T^{2} \)
67 \( 1 + (-9.98 - 5.98i)T + (31.5 + 59.0i)T^{2} \)
71 \( 1 + (5.10 - 9.54i)T + (-39.4 - 59.0i)T^{2} \)
73 \( 1 + (2.41 - 7.96i)T + (-60.6 - 40.5i)T^{2} \)
79 \( 1 + (-5.20 - 7.79i)T + (-30.2 + 72.9i)T^{2} \)
83 \( 1 + (0.451 + 9.19i)T + (-82.6 + 8.13i)T^{2} \)
89 \( 1 + (6.87 + 0.677i)T + (87.2 + 17.3i)T^{2} \)
97 \( 1 + (-3.09 + 7.46i)T + (-68.5 - 68.5i)T^{2} \)
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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

−11.84915722901592871048138011014, −11.10837165544994834175956929629, −10.25351852512590371224867556679, −9.737846847519088821023564973409, −7.18506797349246811983069783564, −6.49149814054785513774305363236, −5.78597150848449666956588830923, −4.36491813542122154050821169361, −3.94809756537212694747554712738, −1.07243654435857766318179442559, 1.90900853448798164000248907806, 4.09161122676251711811004186714, 5.35898958335111885742486938493, 6.00285175671165029475402183200, 6.58453839378362485658353499632, 7.79013808841132602370718151045, 9.500152458451147220668486810531, 10.70687300537243577380107482423, 11.76444450462453410203935724567, 12.11316218900553054112540952941

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