Properties

Label 2-731-1.1-c1-0-48
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  + 2.20·2-s + 2.69·3-s + 2.86·4-s + 0.920·5-s + 5.93·6-s − 2.62·7-s + 1.90·8-s + 4.23·9-s + 2.02·10-s − 3.87·11-s + 7.70·12-s + 0.665·13-s − 5.78·14-s + 2.47·15-s − 1.52·16-s + 17-s + 9.34·18-s + 1.11·19-s + 2.63·20-s − 7.05·21-s − 8.53·22-s + 9.12·23-s + 5.13·24-s − 4.15·25-s + 1.46·26-s + 3.33·27-s − 7.51·28-s + ⋯
L(s)  = 1  + 1.55·2-s + 1.55·3-s + 1.43·4-s + 0.411·5-s + 2.42·6-s − 0.991·7-s + 0.674·8-s + 1.41·9-s + 0.641·10-s − 1.16·11-s + 2.22·12-s + 0.184·13-s − 1.54·14-s + 0.639·15-s − 0.380·16-s + 0.242·17-s + 2.20·18-s + 0.256·19-s + 0.589·20-s − 1.53·21-s − 1.81·22-s + 1.90·23-s + 1.04·24-s − 0.830·25-s + 0.287·26-s + 0.641·27-s − 1.42·28-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

\(L(1)\) \(\approx\) \(5.137850379\)
\(L(\frac12)\) \(\approx\) \(5.137850379\)
\(L(\frac{3}{2})\) 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 \( 1 - 2.20T + 2T^{2} \)
3 \( 1 - 2.69T + 3T^{2} \)
5 \( 1 - 0.920T + 5T^{2} \)
7 \( 1 + 2.62T + 7T^{2} \)
11 \( 1 + 3.87T + 11T^{2} \)
13 \( 1 - 0.665T + 13T^{2} \)
19 \( 1 - 1.11T + 19T^{2} \)
23 \( 1 - 9.12T + 23T^{2} \)
29 \( 1 + 3.52T + 29T^{2} \)
31 \( 1 - 4.39T + 31T^{2} \)
37 \( 1 + 11.2T + 37T^{2} \)
41 \( 1 - 7.18T + 41T^{2} \)
47 \( 1 + 4.91T + 47T^{2} \)
53 \( 1 - 2.14T + 53T^{2} \)
59 \( 1 + 12.5T + 59T^{2} \)
61 \( 1 - 14.3T + 61T^{2} \)
67 \( 1 - 9.51T + 67T^{2} \)
71 \( 1 + 6.27T + 71T^{2} \)
73 \( 1 - 3.62T + 73T^{2} \)
79 \( 1 + 6.08T + 79T^{2} \)
83 \( 1 - 5.14T + 83T^{2} \)
89 \( 1 - 2.88T + 89T^{2} \)
97 \( 1 - 3.05T + 97T^{2} \)
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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

−10.31152539301858959059820224433, −9.490776658531579626613072440941, −8.724663965503619484745827587780, −7.61196393361855546117604746238, −6.80063476425251718391936022444, −5.73577858318939108526065087863, −4.83652940432844744011697836559, −3.53893059335847929221127727658, −3.08141482526327911133473497842, −2.19095600289254623169227932908, 2.19095600289254623169227932908, 3.08141482526327911133473497842, 3.53893059335847929221127727658, 4.83652940432844744011697836559, 5.73577858318939108526065087863, 6.80063476425251718391936022444, 7.61196393361855546117604746238, 8.724663965503619484745827587780, 9.490776658531579626613072440941, 10.31152539301858959059820224433

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