Properties

Label 2-731-1.1-c1-0-28
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  − 0.387·2-s + 1.84·3-s − 1.84·4-s + 2.41·5-s − 0.714·6-s + 4.70·7-s + 1.49·8-s + 0.394·9-s − 0.938·10-s − 2.13·11-s − 3.40·12-s + 0.173·13-s − 1.82·14-s + 4.45·15-s + 3.12·16-s − 17-s − 0.152·18-s + 4.95·19-s − 4.47·20-s + 8.66·21-s + 0.829·22-s − 0.320·23-s + 2.75·24-s + 0.848·25-s − 0.0674·26-s − 4.80·27-s − 8.69·28-s + ⋯
L(s)  = 1  − 0.274·2-s + 1.06·3-s − 0.924·4-s + 1.08·5-s − 0.291·6-s + 1.77·7-s + 0.527·8-s + 0.131·9-s − 0.296·10-s − 0.644·11-s − 0.983·12-s + 0.0482·13-s − 0.487·14-s + 1.15·15-s + 0.780·16-s − 0.242·17-s − 0.0360·18-s + 1.13·19-s − 1.00·20-s + 1.89·21-s + 0.176·22-s − 0.0668·23-s + 0.561·24-s + 0.169·25-s − 0.0132·26-s − 0.923·27-s − 1.64·28-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

\(L(1)\) \(\approx\) \(2.105621891\)
\(L(\frac12)\) \(\approx\) \(2.105621891\)
\(L(\frac{3}{2})\) 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 \( 1 + 0.387T + 2T^{2} \)
3 \( 1 - 1.84T + 3T^{2} \)
5 \( 1 - 2.41T + 5T^{2} \)
7 \( 1 - 4.70T + 7T^{2} \)
11 \( 1 + 2.13T + 11T^{2} \)
13 \( 1 - 0.173T + 13T^{2} \)
19 \( 1 - 4.95T + 19T^{2} \)
23 \( 1 + 0.320T + 23T^{2} \)
29 \( 1 + 1.98T + 29T^{2} \)
31 \( 1 - 2.81T + 31T^{2} \)
37 \( 1 + 6.51T + 37T^{2} \)
41 \( 1 + 5.67T + 41T^{2} \)
47 \( 1 - 5.35T + 47T^{2} \)
53 \( 1 - 5.70T + 53T^{2} \)
59 \( 1 - 1.85T + 59T^{2} \)
61 \( 1 - 4.32T + 61T^{2} \)
67 \( 1 - 6.33T + 67T^{2} \)
71 \( 1 + 0.438T + 71T^{2} \)
73 \( 1 - 11.9T + 73T^{2} \)
79 \( 1 + 12.7T + 79T^{2} \)
83 \( 1 - 4.46T + 83T^{2} \)
89 \( 1 + 6.83T + 89T^{2} \)
97 \( 1 + 12.4T + 97T^{2} \)
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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

−10.11782239223534995132892413567, −9.413997293264321264689506885033, −8.587767827213709529277032399574, −8.146429356093794460363591899494, −7.31852538645005596443039842090, −5.52948897309245083121202755701, −5.10638391960133872539803810643, −3.88449274224380960857443379794, −2.46840009351088788128321269967, −1.46781501366470904172236697227, 1.46781501366470904172236697227, 2.46840009351088788128321269967, 3.88449274224380960857443379794, 5.10638391960133872539803810643, 5.52948897309245083121202755701, 7.31852538645005596443039842090, 8.146429356093794460363591899494, 8.587767827213709529277032399574, 9.413997293264321264689506885033, 10.11782239223534995132892413567

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