Properties

Label 2-1280-8.5-c3-0-39
Degree $2$
Conductor $1280$
Sign $0.707 - 0.707i$
Analytic cond. $75.5224$
Root an. cond. $8.69036$
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  + 2i·3-s − 5i·5-s + 6·7-s + 23·9-s − 32i·11-s + 38i·13-s + 10·15-s + 26·17-s + 100i·19-s + 12i·21-s − 78·23-s − 25·25-s + 100i·27-s + 50i·29-s + 108·31-s + ⋯
L(s)  = 1  + 0.384i·3-s − 0.447i·5-s + 0.323·7-s + 0.851·9-s − 0.877i·11-s + 0.810i·13-s + 0.172·15-s + 0.370·17-s + 1.20i·19-s + 0.124i·21-s − 0.707·23-s − 0.200·25-s + 0.712i·27-s + 0.320i·29-s + 0.625·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1280 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.707 - 0.707i)\, \overline{\Lambda}(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1280 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & (0.707 - 0.707i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1280\)    =    \(2^{8} \cdot 5\)
Sign: $0.707 - 0.707i$
Analytic conductor: \(75.5224\)
Root analytic conductor: \(8.69036\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: $\chi_{1280} (641, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1280,\ (\ :3/2),\ 0.707 - 0.707i)\)

Particular Values

\(L(2)\) \(\approx\) \(2.330085903\)
\(L(\frac12)\) \(\approx\) \(2.330085903\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
5 \( 1 + 5iT \)
good3 \( 1 - 2iT - 27T^{2} \)
7 \( 1 - 6T + 343T^{2} \)
11 \( 1 + 32iT - 1.33e3T^{2} \)
13 \( 1 - 38iT - 2.19e3T^{2} \)
17 \( 1 - 26T + 4.91e3T^{2} \)
19 \( 1 - 100iT - 6.85e3T^{2} \)
23 \( 1 + 78T + 1.21e4T^{2} \)
29 \( 1 - 50iT - 2.43e4T^{2} \)
31 \( 1 - 108T + 2.97e4T^{2} \)
37 \( 1 - 266iT - 5.06e4T^{2} \)
41 \( 1 + 22T + 6.89e4T^{2} \)
43 \( 1 + 442iT - 7.95e4T^{2} \)
47 \( 1 - 514T + 1.03e5T^{2} \)
53 \( 1 - 2iT - 1.48e5T^{2} \)
59 \( 1 + 500iT - 2.05e5T^{2} \)
61 \( 1 - 518iT - 2.26e5T^{2} \)
67 \( 1 - 126iT - 3.00e5T^{2} \)
71 \( 1 - 412T + 3.57e5T^{2} \)
73 \( 1 - 878T + 3.89e5T^{2} \)
79 \( 1 + 600T + 4.93e5T^{2} \)
83 \( 1 - 282iT - 5.71e5T^{2} \)
89 \( 1 - 150T + 7.04e5T^{2} \)
97 \( 1 - 386T + 9.12e5T^{2} \)
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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

−9.460919237367987386630955219353, −8.558136658489028515859395247561, −7.941573185693595096930513904322, −6.93232800126376933627784108416, −5.99169462256673363823139598580, −5.11505881291799593144907487573, −4.19840839434570197100600848614, −3.50406832653571761706886127628, −1.97159307984987243176442238533, −0.988476205509341650252960853419, 0.65157444349750756472724535997, 1.87038034617690268308018810714, 2.81516351405090479808850808159, 4.08796846361579031714144031659, 4.87625591156537573905728024493, 5.96866810952229339385441373898, 6.87271300696606037733046787266, 7.53051362701672748137370662557, 8.134781940972723381406904005667, 9.353091576338153777065040277663

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