Properties

Label 2-728-1.1-c1-0-6
Degree $2$
Conductor $728$
Sign $1$
Analytic cond. $5.81310$
Root an. cond. $2.41103$
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  + 2.19·3-s − 1.70·5-s − 7-s + 1.81·9-s + 4.56·11-s − 13-s − 3.74·15-s + 7.37·17-s + 6.46·19-s − 2.19·21-s + 5.90·23-s − 2.08·25-s − 2.59·27-s + 2.69·29-s + 0.523·31-s + 10.0·33-s + 1.70·35-s + 2.17·37-s − 2.19·39-s − 4.98·41-s + 2.32·43-s − 3.10·45-s − 12.3·47-s + 49-s + 16.1·51-s − 4.71·53-s − 7.78·55-s + ⋯
L(s)  = 1  + 1.26·3-s − 0.763·5-s − 0.377·7-s + 0.605·9-s + 1.37·11-s − 0.277·13-s − 0.967·15-s + 1.78·17-s + 1.48·19-s − 0.478·21-s + 1.23·23-s − 0.417·25-s − 0.500·27-s + 0.500·29-s + 0.0939·31-s + 1.74·33-s + 0.288·35-s + 0.357·37-s − 0.351·39-s − 0.778·41-s + 0.355·43-s − 0.462·45-s − 1.79·47-s + 0.142·49-s + 2.26·51-s − 0.648·53-s − 1.05·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 728 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 728 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(728\)    =    \(2^{3} \cdot 7 \cdot 13\)
Sign: $1$
Analytic conductor: \(5.81310\)
Root analytic conductor: \(2.41103\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 728,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.159193416\)
\(L(\frac12)\) \(\approx\) \(2.159193416\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
7 \( 1 + T \)
13 \( 1 + T \)
good3 \( 1 - 2.19T + 3T^{2} \)
5 \( 1 + 1.70T + 5T^{2} \)
11 \( 1 - 4.56T + 11T^{2} \)
17 \( 1 - 7.37T + 17T^{2} \)
19 \( 1 - 6.46T + 19T^{2} \)
23 \( 1 - 5.90T + 23T^{2} \)
29 \( 1 - 2.69T + 29T^{2} \)
31 \( 1 - 0.523T + 31T^{2} \)
37 \( 1 - 2.17T + 37T^{2} \)
41 \( 1 + 4.98T + 41T^{2} \)
43 \( 1 - 2.32T + 43T^{2} \)
47 \( 1 + 12.3T + 47T^{2} \)
53 \( 1 + 4.71T + 53T^{2} \)
59 \( 1 + 13.7T + 59T^{2} \)
61 \( 1 + 0.137T + 61T^{2} \)
67 \( 1 + 7.96T + 67T^{2} \)
71 \( 1 + 13.8T + 71T^{2} \)
73 \( 1 - 2.52T + 73T^{2} \)
79 \( 1 - 4.85T + 79T^{2} \)
83 \( 1 + 7.51T + 83T^{2} \)
89 \( 1 + 10.8T + 89T^{2} \)
97 \( 1 - 17.6T + 97T^{2} \)
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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

−10.02823668633485855492574632265, −9.451965357010081392210619076353, −8.723545732676100815400745459616, −7.75279397320532598205509283406, −7.29512002740419805324966312970, −6.04892275863511645120660970772, −4.71590911852461806532621101903, −3.38407850066359012084685799065, −3.21478602642920728913889105071, −1.33717339232557373012580302640, 1.33717339232557373012580302640, 3.21478602642920728913889105071, 3.38407850066359012084685799065, 4.71590911852461806532621101903, 6.04892275863511645120660970772, 7.29512002740419805324966312970, 7.75279397320532598205509283406, 8.723545732676100815400745459616, 9.451965357010081392210619076353, 10.02823668633485855492574632265

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