Properties

Label 2-731-1.1-c1-0-30
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  + 2.72·2-s − 2.69·3-s + 5.44·4-s + 0.220·5-s − 7.35·6-s + 2.22·7-s + 9.39·8-s + 4.27·9-s + 0.602·10-s − 5.25·11-s − 14.6·12-s + 5.85·13-s + 6.07·14-s − 0.595·15-s + 14.7·16-s − 17-s + 11.6·18-s − 1.11·19-s + 1.20·20-s − 6.00·21-s − 14.3·22-s + 6.93·23-s − 25.3·24-s − 4.95·25-s + 15.9·26-s − 3.43·27-s + 12.1·28-s + ⋯
L(s)  = 1  + 1.92·2-s − 1.55·3-s + 2.72·4-s + 0.0987·5-s − 3.00·6-s + 0.841·7-s + 3.32·8-s + 1.42·9-s + 0.190·10-s − 1.58·11-s − 4.23·12-s + 1.62·13-s + 1.62·14-s − 0.153·15-s + 3.68·16-s − 0.242·17-s + 2.74·18-s − 0.255·19-s + 0.268·20-s − 1.31·21-s − 3.05·22-s + 1.44·23-s − 5.17·24-s − 0.990·25-s + 3.13·26-s − 0.660·27-s + 2.29·28-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

\(L(1)\) \(\approx\) \(3.417531154\)
\(L(\frac12)\) \(\approx\) \(3.417531154\)
\(L(\frac{3}{2})\) 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 \( 1 - 2.72T + 2T^{2} \)
3 \( 1 + 2.69T + 3T^{2} \)
5 \( 1 - 0.220T + 5T^{2} \)
7 \( 1 - 2.22T + 7T^{2} \)
11 \( 1 + 5.25T + 11T^{2} \)
13 \( 1 - 5.85T + 13T^{2} \)
19 \( 1 + 1.11T + 19T^{2} \)
23 \( 1 - 6.93T + 23T^{2} \)
29 \( 1 - 8.50T + 29T^{2} \)
31 \( 1 + 6.37T + 31T^{2} \)
37 \( 1 - 3.29T + 37T^{2} \)
41 \( 1 + 4.85T + 41T^{2} \)
47 \( 1 + 6.19T + 47T^{2} \)
53 \( 1 - 3.51T + 53T^{2} \)
59 \( 1 + 11.9T + 59T^{2} \)
61 \( 1 + 5.26T + 61T^{2} \)
67 \( 1 - 3.14T + 67T^{2} \)
71 \( 1 + 11.7T + 71T^{2} \)
73 \( 1 + 1.28T + 73T^{2} \)
79 \( 1 - 0.258T + 79T^{2} \)
83 \( 1 + 9.75T + 83T^{2} \)
89 \( 1 + 13.3T + 89T^{2} \)
97 \( 1 - 1.61T + 97T^{2} \)
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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

−10.93985333032529541496560263190, −10.34904983959057376662000404477, −8.286485068014767793960924982844, −7.26709115258529772047169981325, −6.33322758861829849109053767594, −5.69681703991264748844615380359, −5.02627342107751337136406857823, −4.39652611876229938066566580244, −3.04225204349673631005070108229, −1.54002373934081169102434898309, 1.54002373934081169102434898309, 3.04225204349673631005070108229, 4.39652611876229938066566580244, 5.02627342107751337136406857823, 5.69681703991264748844615380359, 6.33322758861829849109053767594, 7.26709115258529772047169981325, 8.286485068014767793960924982844, 10.34904983959057376662000404477, 10.93985333032529541496560263190

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