Properties

Label 2-768-1.1-c3-0-6
Degree $2$
Conductor $768$
Sign $1$
Analytic cond. $45.3134$
Root an. cond. $6.73152$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3·3-s − 5.67·5-s − 33.0·7-s + 9·9-s + 34.6·11-s − 82.2·13-s − 17.0·15-s + 97.8·17-s − 55.8·19-s − 99.2·21-s + 130.·23-s − 92.7·25-s + 27·27-s + 147.·29-s − 101.·31-s + 103.·33-s + 187.·35-s + 184.·37-s − 246.·39-s − 237.·41-s + 199.·43-s − 51.0·45-s + 334.·47-s + 752.·49-s + 293.·51-s + 102.·53-s − 196.·55-s + ⋯
L(s)  = 1  + 0.577·3-s − 0.507·5-s − 1.78·7-s + 0.333·9-s + 0.949·11-s − 1.75·13-s − 0.293·15-s + 1.39·17-s − 0.674·19-s − 1.03·21-s + 1.18·23-s − 0.742·25-s + 0.192·27-s + 0.944·29-s − 0.586·31-s + 0.547·33-s + 0.907·35-s + 0.819·37-s − 1.01·39-s − 0.904·41-s + 0.708·43-s − 0.169·45-s + 1.03·47-s + 2.19·49-s + 0.806·51-s + 0.264·53-s − 0.481·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 768 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 768 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(768\)    =    \(2^{8} \cdot 3\)
Sign: $1$
Analytic conductor: \(45.3134\)
Root analytic conductor: \(6.73152\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 768,\ (\ :3/2),\ 1)\)

Particular Values

\(L(2)\) \(\approx\) \(1.566278356\)
\(L(\frac12)\) \(\approx\) \(1.566278356\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 - 3T \)
good5 \( 1 + 5.67T + 125T^{2} \)
7 \( 1 + 33.0T + 343T^{2} \)
11 \( 1 - 34.6T + 1.33e3T^{2} \)
13 \( 1 + 82.2T + 2.19e3T^{2} \)
17 \( 1 - 97.8T + 4.91e3T^{2} \)
19 \( 1 + 55.8T + 6.85e3T^{2} \)
23 \( 1 - 130.T + 1.21e4T^{2} \)
29 \( 1 - 147.T + 2.43e4T^{2} \)
31 \( 1 + 101.T + 2.97e4T^{2} \)
37 \( 1 - 184.T + 5.06e4T^{2} \)
41 \( 1 + 237.T + 6.89e4T^{2} \)
43 \( 1 - 199.T + 7.95e4T^{2} \)
47 \( 1 - 334.T + 1.03e5T^{2} \)
53 \( 1 - 102.T + 1.48e5T^{2} \)
59 \( 1 - 105.T + 2.05e5T^{2} \)
61 \( 1 - 717.T + 2.26e5T^{2} \)
67 \( 1 - 316.T + 3.00e5T^{2} \)
71 \( 1 - 800.T + 3.57e5T^{2} \)
73 \( 1 + 301.T + 3.89e5T^{2} \)
79 \( 1 - 42.8T + 4.93e5T^{2} \)
83 \( 1 - 1.23e3T + 5.71e5T^{2} \)
89 \( 1 + 1.32e3T + 7.04e5T^{2} \)
97 \( 1 + 505.T + 9.12e5T^{2} \)
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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

−9.644207955241122414406324764815, −9.385969382338609606066685360523, −8.215614199867146068897771266674, −7.19834467779593724002973766721, −6.71455156282706224704983187238, −5.51333467420216234290244982539, −4.18080781827021538229353021800, −3.36084091836878453283283443734, −2.49382771339511400727310137239, −0.66649278665721321426528852998, 0.66649278665721321426528852998, 2.49382771339511400727310137239, 3.36084091836878453283283443734, 4.18080781827021538229353021800, 5.51333467420216234290244982539, 6.71455156282706224704983187238, 7.19834467779593724002973766721, 8.215614199867146068897771266674, 9.385969382338609606066685360523, 9.644207955241122414406324764815

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