Properties

Label 2-1280-1.1-c1-0-12
Degree $2$
Conductor $1280$
Sign $1$
Analytic cond. $10.2208$
Root an. cond. $3.19700$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 1.41·3-s + 5-s + 1.41·7-s − 0.999·9-s − 2.82·11-s + 2·13-s + 1.41·15-s + 2·17-s + 5.65·19-s + 2.00·21-s + 1.41·23-s + 25-s − 5.65·27-s + 8·29-s + 8.48·31-s − 4.00·33-s + 1.41·35-s + 10·37-s + 2.82·39-s − 7.07·43-s − 0.999·45-s − 9.89·47-s − 5·49-s + 2.82·51-s + 2·53-s − 2.82·55-s + 8.00·57-s + ⋯
L(s)  = 1  + 0.816·3-s + 0.447·5-s + 0.534·7-s − 0.333·9-s − 0.852·11-s + 0.554·13-s + 0.365·15-s + 0.485·17-s + 1.29·19-s + 0.436·21-s + 0.294·23-s + 0.200·25-s − 1.08·27-s + 1.48·29-s + 1.52·31-s − 0.696·33-s + 0.239·35-s + 1.64·37-s + 0.452·39-s − 1.07·43-s − 0.149·45-s − 1.44·47-s − 0.714·49-s + 0.396·51-s + 0.274·53-s − 0.381·55-s + 1.05·57-s + ⋯

Functional equation

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

Invariants

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

Particular Values

\(L(1)\) \(\approx\) \(2.486806374\)
\(L(\frac12)\) \(\approx\) \(2.486806374\)
\(L(\frac{3}{2})\) 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 \( 1 - T \)
good3 \( 1 - 1.41T + 3T^{2} \)
7 \( 1 - 1.41T + 7T^{2} \)
11 \( 1 + 2.82T + 11T^{2} \)
13 \( 1 - 2T + 13T^{2} \)
17 \( 1 - 2T + 17T^{2} \)
19 \( 1 - 5.65T + 19T^{2} \)
23 \( 1 - 1.41T + 23T^{2} \)
29 \( 1 - 8T + 29T^{2} \)
31 \( 1 - 8.48T + 31T^{2} \)
37 \( 1 - 10T + 37T^{2} \)
41 \( 1 + 41T^{2} \)
43 \( 1 + 7.07T + 43T^{2} \)
47 \( 1 + 9.89T + 47T^{2} \)
53 \( 1 - 2T + 53T^{2} \)
59 \( 1 - 5.65T + 59T^{2} \)
61 \( 1 - 10T + 61T^{2} \)
67 \( 1 - 1.41T + 67T^{2} \)
71 \( 1 + 14.1T + 71T^{2} \)
73 \( 1 + 6T + 73T^{2} \)
79 \( 1 + 11.3T + 79T^{2} \)
83 \( 1 + 12.7T + 83T^{2} \)
89 \( 1 + 10T + 89T^{2} \)
97 \( 1 - 14T + 97T^{2} \)
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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

−9.808678695030406267000217782088, −8.604438656006553436101937980075, −8.246066278278230756500693755662, −7.45488005435568251559917616163, −6.30844868618169559388310540632, −5.42690454146829695906089771175, −4.59801893497189138399234377519, −3.20313161202280495656057023424, −2.62935497111494075291683078210, −1.23737956618232034654550479383, 1.23737956618232034654550479383, 2.62935497111494075291683078210, 3.20313161202280495656057023424, 4.59801893497189138399234377519, 5.42690454146829695906089771175, 6.30844868618169559388310540632, 7.45488005435568251559917616163, 8.246066278278230756500693755662, 8.604438656006553436101937980075, 9.808678695030406267000217782088

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