Properties

Label 2-1280-40.29-c1-0-16
Degree $2$
Conductor $1280$
Sign $0.707 + 0.707i$
Analytic cond. $10.2208$
Root an. cond. $3.19700$
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  − 3.23·3-s − 2.23i·5-s + 0.763i·7-s + 7.47·9-s + 7.23i·15-s − 2.47i·21-s + 5.70i·23-s − 5.00·25-s − 14.4·27-s + 6i·29-s + 1.70·35-s + 4.47·41-s + 11.2·43-s − 16.7i·45-s − 13.7i·47-s + ⋯
L(s)  = 1  − 1.86·3-s − 0.999i·5-s + 0.288i·7-s + 2.49·9-s + 1.86i·15-s − 0.539i·21-s + 1.19i·23-s − 1.00·25-s − 2.78·27-s + 1.11i·29-s + 0.288·35-s + 0.698·41-s + 1.71·43-s − 2.49i·45-s − 1.99i·47-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1280 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.707 + 0.707i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1280 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.707 + 0.707i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1280\)    =    \(2^{8} \cdot 5\)
Sign: $0.707 + 0.707i$
Analytic conductor: \(10.2208\)
Root analytic conductor: \(3.19700\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1280} (129, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1280,\ (\ :1/2),\ 0.707 + 0.707i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.7659180767\)
\(L(\frac12)\) \(\approx\) \(0.7659180767\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
5 \( 1 + 2.23iT \)
good3 \( 1 + 3.23T + 3T^{2} \)
7 \( 1 - 0.763iT - 7T^{2} \)
11 \( 1 - 11T^{2} \)
13 \( 1 + 13T^{2} \)
17 \( 1 - 17T^{2} \)
19 \( 1 - 19T^{2} \)
23 \( 1 - 5.70iT - 23T^{2} \)
29 \( 1 - 6iT - 29T^{2} \)
31 \( 1 + 31T^{2} \)
37 \( 1 + 37T^{2} \)
41 \( 1 - 4.47T + 41T^{2} \)
43 \( 1 - 11.2T + 43T^{2} \)
47 \( 1 + 13.7iT - 47T^{2} \)
53 \( 1 + 53T^{2} \)
59 \( 1 - 59T^{2} \)
61 \( 1 + 13.4iT - 61T^{2} \)
67 \( 1 + 8.18T + 67T^{2} \)
71 \( 1 + 71T^{2} \)
73 \( 1 - 73T^{2} \)
79 \( 1 + 79T^{2} \)
83 \( 1 - 17.7T + 83T^{2} \)
89 \( 1 - 6T + 89T^{2} \)
97 \( 1 - 97T^{2} \)
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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

−9.637771173776759655248199109867, −8.958395746535551150577455536959, −7.75606208813945452281563551238, −6.96323535993980912001408834720, −5.94927020370902942254644882972, −5.42167068402821246228966967119, −4.75840812015071141314183607097, −3.79899227438733933686813987936, −1.75874994722527744116461720097, −0.62899967962144220574872994114, 0.823694067411163150394965490612, 2.45782777237964079927509745783, 4.00863332317167002079233108185, 4.68744777663236629113160696692, 5.98366795293723770576581380274, 6.15152175551460638753145340114, 7.17238056832804135831044722659, 7.71142356036044901794464097212, 9.245652047565780460086391217321, 10.19457275378008959528434429184

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