Properties

Label 2-731-1.1-c1-0-32
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  − 0.753·2-s + 2.87·3-s − 1.43·4-s + 3.13·5-s − 2.16·6-s + 0.322·7-s + 2.58·8-s + 5.26·9-s − 2.36·10-s + 3.53·11-s − 4.11·12-s − 2.34·13-s − 0.243·14-s + 9.01·15-s + 0.912·16-s + 17-s − 3.97·18-s − 7.79·19-s − 4.48·20-s + 0.928·21-s − 2.66·22-s − 4.30·23-s + 7.43·24-s + 4.82·25-s + 1.76·26-s + 6.51·27-s − 0.462·28-s + ⋯
L(s)  = 1  − 0.533·2-s + 1.65·3-s − 0.715·4-s + 1.40·5-s − 0.884·6-s + 0.122·7-s + 0.914·8-s + 1.75·9-s − 0.747·10-s + 1.06·11-s − 1.18·12-s − 0.649·13-s − 0.0650·14-s + 2.32·15-s + 0.228·16-s + 0.242·17-s − 0.935·18-s − 1.78·19-s − 1.00·20-s + 0.202·21-s − 0.568·22-s − 0.897·23-s + 1.51·24-s + 0.965·25-s + 0.345·26-s + 1.25·27-s − 0.0873·28-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

\(L(1)\) \(\approx\) \(2.225840993\)
\(L(\frac12)\) \(\approx\) \(2.225840993\)
\(L(\frac{3}{2})\) 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 \( 1 + 0.753T + 2T^{2} \)
3 \( 1 - 2.87T + 3T^{2} \)
5 \( 1 - 3.13T + 5T^{2} \)
7 \( 1 - 0.322T + 7T^{2} \)
11 \( 1 - 3.53T + 11T^{2} \)
13 \( 1 + 2.34T + 13T^{2} \)
19 \( 1 + 7.79T + 19T^{2} \)
23 \( 1 + 4.30T + 23T^{2} \)
29 \( 1 - 9.30T + 29T^{2} \)
31 \( 1 + 4.64T + 31T^{2} \)
37 \( 1 + 8.30T + 37T^{2} \)
41 \( 1 - 11.5T + 41T^{2} \)
47 \( 1 - 5.12T + 47T^{2} \)
53 \( 1 + 4.43T + 53T^{2} \)
59 \( 1 + 10.2T + 59T^{2} \)
61 \( 1 - 12.1T + 61T^{2} \)
67 \( 1 - 4.85T + 67T^{2} \)
71 \( 1 - 13.0T + 71T^{2} \)
73 \( 1 + 11.0T + 73T^{2} \)
79 \( 1 + 1.37T + 79T^{2} \)
83 \( 1 + 11.1T + 83T^{2} \)
89 \( 1 - 1.87T + 89T^{2} \)
97 \( 1 + 9.00T + 97T^{2} \)
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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

−9.897967480637636521529057568812, −9.485656733299445499795041816266, −8.730207843179682447318693787736, −8.261430984414120428959751430302, −7.13897645602114850084858711918, −6.09477543003199636746311316274, −4.69537845064226096206012274373, −3.81789122196976565682558234939, −2.40163288442299338654884529300, −1.58290624371752045044603173505, 1.58290624371752045044603173505, 2.40163288442299338654884529300, 3.81789122196976565682558234939, 4.69537845064226096206012274373, 6.09477543003199636746311316274, 7.13897645602114850084858711918, 8.261430984414120428959751430302, 8.730207843179682447318693787736, 9.485656733299445499795041816266, 9.897967480637636521529057568812

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