Properties

Label 2-731-1.1-c1-0-21
Degree $2$
Conductor $731$
Sign $1$
Analytic cond. $5.83706$
Root an. cond. $2.41600$
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  − 1.94·2-s + 3.44·3-s + 1.77·4-s + 0.802·5-s − 6.68·6-s − 1.20·7-s + 0.439·8-s + 8.84·9-s − 1.55·10-s − 3.00·11-s + 6.10·12-s + 2.47·13-s + 2.34·14-s + 2.76·15-s − 4.40·16-s − 17-s − 17.1·18-s + 6.97·19-s + 1.42·20-s − 4.14·21-s + 5.83·22-s − 3.49·23-s + 1.51·24-s − 4.35·25-s − 4.81·26-s + 20.1·27-s − 2.13·28-s + ⋯
L(s)  = 1  − 1.37·2-s + 1.98·3-s + 0.886·4-s + 0.358·5-s − 2.72·6-s − 0.455·7-s + 0.155·8-s + 2.94·9-s − 0.492·10-s − 0.904·11-s + 1.76·12-s + 0.687·13-s + 0.625·14-s + 0.712·15-s − 1.10·16-s − 0.242·17-s − 4.04·18-s + 1.60·19-s + 0.318·20-s − 0.905·21-s + 1.24·22-s − 0.729·23-s + 0.308·24-s − 0.871·25-s − 0.944·26-s + 3.87·27-s − 0.404·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 731 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 731 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(731\)    =    \(17 \cdot 43\)
Sign: $1$
Analytic conductor: \(5.83706\)
Root analytic conductor: \(2.41600\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 731,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.596007624\)
\(L(\frac12)\) \(\approx\) \(1.596007624\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad17 \( 1 + T \)
43 \( 1 - T \)
good2 \( 1 + 1.94T + 2T^{2} \)
3 \( 1 - 3.44T + 3T^{2} \)
5 \( 1 - 0.802T + 5T^{2} \)
7 \( 1 + 1.20T + 7T^{2} \)
11 \( 1 + 3.00T + 11T^{2} \)
13 \( 1 - 2.47T + 13T^{2} \)
19 \( 1 - 6.97T + 19T^{2} \)
23 \( 1 + 3.49T + 23T^{2} \)
29 \( 1 - 10.3T + 29T^{2} \)
31 \( 1 - 3.97T + 31T^{2} \)
37 \( 1 + 1.02T + 37T^{2} \)
41 \( 1 + 5.47T + 41T^{2} \)
47 \( 1 + 5.14T + 47T^{2} \)
53 \( 1 - 4.20T + 53T^{2} \)
59 \( 1 + 12.2T + 59T^{2} \)
61 \( 1 - 4.73T + 61T^{2} \)
67 \( 1 + 7.94T + 67T^{2} \)
71 \( 1 + 3.68T + 71T^{2} \)
73 \( 1 - 8.84T + 73T^{2} \)
79 \( 1 - 7.36T + 79T^{2} \)
83 \( 1 + 7.11T + 83T^{2} \)
89 \( 1 - 2.45T + 89T^{2} \)
97 \( 1 + 3.37T + 97T^{2} \)
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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

−9.912963565236992329716487198289, −9.553933480129037496884001426387, −8.609305238342809960499865292908, −8.111620220834174804951934967688, −7.46740566196553979594735039788, −6.48939906983230613783998907450, −4.70437987011970859998023880098, −3.39689505427134852719698885595, −2.49217997030486046005665222683, −1.36061377852775121075815215278, 1.36061377852775121075815215278, 2.49217997030486046005665222683, 3.39689505427134852719698885595, 4.70437987011970859998023880098, 6.48939906983230613783998907450, 7.46740566196553979594735039788, 8.111620220834174804951934967688, 8.609305238342809960499865292908, 9.553933480129037496884001426387, 9.912963565236992329716487198289

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