Properties

Label 2-1280-1.1-c3-0-93
Degree $2$
Conductor $1280$
Sign $-1$
Analytic cond. $75.5224$
Root an. cond. $8.69036$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 7.99·3-s + 5·5-s − 9.93·7-s + 36.9·9-s − 60.0·11-s + 32.3·13-s + 39.9·15-s + 12.5·17-s − 116.·19-s − 79.4·21-s − 204.·23-s + 25·25-s + 79.7·27-s − 31.8·29-s − 81.0·31-s − 480.·33-s − 49.6·35-s + 270.·37-s + 258.·39-s − 330.·41-s − 138.·43-s + 184.·45-s + 211.·47-s − 244.·49-s + 100.·51-s + 437.·53-s − 300.·55-s + ⋯
L(s)  = 1  + 1.53·3-s + 0.447·5-s − 0.536·7-s + 1.36·9-s − 1.64·11-s + 0.689·13-s + 0.688·15-s + 0.178·17-s − 1.41·19-s − 0.825·21-s − 1.85·23-s + 0.200·25-s + 0.568·27-s − 0.203·29-s − 0.469·31-s − 2.53·33-s − 0.239·35-s + 1.20·37-s + 1.06·39-s − 1.25·41-s − 0.490·43-s + 0.612·45-s + 0.656·47-s − 0.712·49-s + 0.275·51-s + 1.13·53-s − 0.735·55-s + ⋯

Functional equation

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

Invariants

Degree: \(2\)
Conductor: \(1280\)    =    \(2^{8} \cdot 5\)
Sign: $-1$
Analytic conductor: \(75.5224\)
Root analytic conductor: \(8.69036\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 1280,\ (\ :3/2),\ -1)\)

Particular Values

\(L(2)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{5}{2})\) 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 \( 1 - 5T \)
good3 \( 1 - 7.99T + 27T^{2} \)
7 \( 1 + 9.93T + 343T^{2} \)
11 \( 1 + 60.0T + 1.33e3T^{2} \)
13 \( 1 - 32.3T + 2.19e3T^{2} \)
17 \( 1 - 12.5T + 4.91e3T^{2} \)
19 \( 1 + 116.T + 6.85e3T^{2} \)
23 \( 1 + 204.T + 1.21e4T^{2} \)
29 \( 1 + 31.8T + 2.43e4T^{2} \)
31 \( 1 + 81.0T + 2.97e4T^{2} \)
37 \( 1 - 270.T + 5.06e4T^{2} \)
41 \( 1 + 330.T + 6.89e4T^{2} \)
43 \( 1 + 138.T + 7.95e4T^{2} \)
47 \( 1 - 211.T + 1.03e5T^{2} \)
53 \( 1 - 437.T + 1.48e5T^{2} \)
59 \( 1 + 181.T + 2.05e5T^{2} \)
61 \( 1 + 472.T + 2.26e5T^{2} \)
67 \( 1 + 71.8T + 3.00e5T^{2} \)
71 \( 1 - 767.T + 3.57e5T^{2} \)
73 \( 1 + 261.T + 3.89e5T^{2} \)
79 \( 1 + 600.T + 4.93e5T^{2} \)
83 \( 1 - 612.T + 5.71e5T^{2} \)
89 \( 1 + 503.T + 7.04e5T^{2} \)
97 \( 1 + 500.T + 9.12e5T^{2} \)
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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

−8.730595572778350580632557505498, −8.200986196244737107243908700558, −7.57316100764805992063501550368, −6.43026726681854179409219500914, −5.60970228448851984659187746142, −4.32459584596057889307935277503, −3.43611723294409045982209927708, −2.53555095235012548279964992415, −1.86601856819716245500367849479, 0, 1.86601856819716245500367849479, 2.53555095235012548279964992415, 3.43611723294409045982209927708, 4.32459584596057889307935277503, 5.60970228448851984659187746142, 6.43026726681854179409219500914, 7.57316100764805992063501550368, 8.200986196244737107243908700558, 8.730595572778350580632557505498

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