Properties

Label 2-2e9-1.1-c1-0-5
Degree $2$
Conductor $512$
Sign $1$
Analytic cond. $4.08834$
Root an. cond. $2.02196$
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  + 2.44·3-s − 3.46·5-s + 2.82·7-s + 2.99·9-s + 2.44·11-s + 3.46·13-s − 8.48·15-s + 4·17-s − 2.44·19-s + 6.92·21-s + 2.82·23-s + 6.99·25-s − 3.46·29-s + 5.65·31-s + 5.99·33-s − 9.79·35-s + 3.46·37-s + 8.48·39-s − 2·41-s − 12.2·43-s − 10.3·45-s − 11.3·47-s + 1.00·49-s + 9.79·51-s − 10.3·53-s − 8.48·55-s − 5.99·57-s + ⋯
L(s)  = 1  + 1.41·3-s − 1.54·5-s + 1.06·7-s + 0.999·9-s + 0.738·11-s + 0.960·13-s − 2.19·15-s + 0.970·17-s − 0.561·19-s + 1.51·21-s + 0.589·23-s + 1.39·25-s − 0.643·29-s + 1.01·31-s + 1.04·33-s − 1.65·35-s + 0.569·37-s + 1.35·39-s − 0.312·41-s − 1.86·43-s − 1.54·45-s − 1.65·47-s + 0.142·49-s + 1.37·51-s − 1.42·53-s − 1.14·55-s − 0.794·57-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 512 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 512 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(512\)    =    \(2^{9}\)
Sign: $1$
Analytic conductor: \(4.08834\)
Root analytic conductor: \(2.02196\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 512,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.073385555\)
\(L(\frac12)\) \(\approx\) \(2.073385555\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
good3 \( 1 - 2.44T + 3T^{2} \)
5 \( 1 + 3.46T + 5T^{2} \)
7 \( 1 - 2.82T + 7T^{2} \)
11 \( 1 - 2.44T + 11T^{2} \)
13 \( 1 - 3.46T + 13T^{2} \)
17 \( 1 - 4T + 17T^{2} \)
19 \( 1 + 2.44T + 19T^{2} \)
23 \( 1 - 2.82T + 23T^{2} \)
29 \( 1 + 3.46T + 29T^{2} \)
31 \( 1 - 5.65T + 31T^{2} \)
37 \( 1 - 3.46T + 37T^{2} \)
41 \( 1 + 2T + 41T^{2} \)
43 \( 1 + 12.2T + 43T^{2} \)
47 \( 1 + 11.3T + 47T^{2} \)
53 \( 1 + 10.3T + 53T^{2} \)
59 \( 1 + 2.44T + 59T^{2} \)
61 \( 1 - 3.46T + 61T^{2} \)
67 \( 1 - 7.34T + 67T^{2} \)
71 \( 1 + 2.82T + 71T^{2} \)
73 \( 1 - 8T + 73T^{2} \)
79 \( 1 - 5.65T + 79T^{2} \)
83 \( 1 + 7.34T + 83T^{2} \)
89 \( 1 + 8T + 89T^{2} \)
97 \( 1 - 12T + 97T^{2} \)
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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

−11.20544125273785847021381447689, −9.833447591094872444876733124079, −8.728690327224088633399603557598, −8.177765707929596008827844490974, −7.77133588120744243681319659886, −6.60203917857438523581000035376, −4.85170527798308962128117201955, −3.86239698793905607638957781995, −3.20787243440525148194766154864, −1.50430776774700765397861314142, 1.50430776774700765397861314142, 3.20787243440525148194766154864, 3.86239698793905607638957781995, 4.85170527798308962128117201955, 6.60203917857438523581000035376, 7.77133588120744243681319659886, 8.177765707929596008827844490974, 8.728690327224088633399603557598, 9.833447591094872444876733124079, 11.20544125273785847021381447689

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