Properties

Label 2-1280-1.1-c1-0-15
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  + 2.73·3-s − 5-s + 0.732·7-s + 4.46·9-s + 2·11-s + 3.46·13-s − 2.73·15-s + 3.46·17-s + 0.535·19-s + 2·21-s − 6.19·23-s + 25-s + 3.99·27-s − 6.92·29-s + 5.46·31-s + 5.46·33-s − 0.732·35-s − 2·37-s + 9.46·39-s − 1.46·41-s + 5.26·43-s − 4.46·45-s − 3.26·47-s − 6.46·49-s + 9.46·51-s + 11.4·53-s − 2·55-s + ⋯
L(s)  = 1  + 1.57·3-s − 0.447·5-s + 0.276·7-s + 1.48·9-s + 0.603·11-s + 0.960·13-s − 0.705·15-s + 0.840·17-s + 0.122·19-s + 0.436·21-s − 1.29·23-s + 0.200·25-s + 0.769·27-s − 1.28·29-s + 0.981·31-s + 0.951·33-s − 0.123·35-s − 0.328·37-s + 1.51·39-s − 0.228·41-s + 0.803·43-s − 0.665·45-s − 0.476·47-s − 0.923·49-s + 1.32·51-s + 1.57·53-s − 0.269·55-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

\(L(1)\) \(\approx\) \(2.954675892\)
\(L(\frac12)\) \(\approx\) \(2.954675892\)
\(L(\frac{3}{2})\) 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 \( 1 - 2.73T + 3T^{2} \)
7 \( 1 - 0.732T + 7T^{2} \)
11 \( 1 - 2T + 11T^{2} \)
13 \( 1 - 3.46T + 13T^{2} \)
17 \( 1 - 3.46T + 17T^{2} \)
19 \( 1 - 0.535T + 19T^{2} \)
23 \( 1 + 6.19T + 23T^{2} \)
29 \( 1 + 6.92T + 29T^{2} \)
31 \( 1 - 5.46T + 31T^{2} \)
37 \( 1 + 2T + 37T^{2} \)
41 \( 1 + 1.46T + 41T^{2} \)
43 \( 1 - 5.26T + 43T^{2} \)
47 \( 1 + 3.26T + 47T^{2} \)
53 \( 1 - 11.4T + 53T^{2} \)
59 \( 1 - 7.46T + 59T^{2} \)
61 \( 1 - 8.92T + 61T^{2} \)
67 \( 1 - 10.7T + 67T^{2} \)
71 \( 1 - 5.46T + 71T^{2} \)
73 \( 1 + 7.46T + 73T^{2} \)
79 \( 1 - 1.07T + 79T^{2} \)
83 \( 1 - 1.26T + 83T^{2} \)
89 \( 1 + 8.92T + 89T^{2} \)
97 \( 1 + 14.3T + 97T^{2} \)
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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

−9.543729856134368219682187800953, −8.672714553394289769313921727188, −8.174740303887078720907425032421, −7.54198666089941367045483251094, −6.55990382620793343410694020875, −5.42384512169383981413181618519, −3.94707571883818012089443160324, −3.72168676285837127845647845823, −2.50478899943272120890314001504, −1.37191962178184502383989300481, 1.37191962178184502383989300481, 2.50478899943272120890314001504, 3.72168676285837127845647845823, 3.94707571883818012089443160324, 5.42384512169383981413181618519, 6.55990382620793343410694020875, 7.54198666089941367045483251094, 8.174740303887078720907425032421, 8.672714553394289769313921727188, 9.543729856134368219682187800953

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