Properties

Label 2-731-1.1-c1-0-5
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  − 2.48·2-s + 1.10·3-s + 4.16·4-s − 3.73·5-s − 2.73·6-s − 2.89·7-s − 5.37·8-s − 1.78·9-s + 9.27·10-s − 5.24·11-s + 4.59·12-s − 2.10·13-s + 7.19·14-s − 4.11·15-s + 5.01·16-s + 17-s + 4.42·18-s + 4.79·19-s − 15.5·20-s − 3.19·21-s + 13.0·22-s + 5.89·23-s − 5.93·24-s + 8.94·25-s + 5.22·26-s − 5.27·27-s − 12.0·28-s + ⋯
L(s)  = 1  − 1.75·2-s + 0.636·3-s + 2.08·4-s − 1.66·5-s − 1.11·6-s − 1.09·7-s − 1.90·8-s − 0.594·9-s + 2.93·10-s − 1.58·11-s + 1.32·12-s − 0.583·13-s + 1.92·14-s − 1.06·15-s + 1.25·16-s + 0.242·17-s + 1.04·18-s + 1.09·19-s − 3.47·20-s − 0.697·21-s + 2.77·22-s + 1.22·23-s − 1.21·24-s + 1.78·25-s + 1.02·26-s − 1.01·27-s − 2.28·28-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

\(L(1)\) \(\approx\) \(0.2842711038\)
\(L(\frac12)\) \(\approx\) \(0.2842711038\)
\(L(\frac{3}{2})\) 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 \( 1 + 2.48T + 2T^{2} \)
3 \( 1 - 1.10T + 3T^{2} \)
5 \( 1 + 3.73T + 5T^{2} \)
7 \( 1 + 2.89T + 7T^{2} \)
11 \( 1 + 5.24T + 11T^{2} \)
13 \( 1 + 2.10T + 13T^{2} \)
19 \( 1 - 4.79T + 19T^{2} \)
23 \( 1 - 5.89T + 23T^{2} \)
29 \( 1 - 7.20T + 29T^{2} \)
31 \( 1 - 4.25T + 31T^{2} \)
37 \( 1 - 10.0T + 37T^{2} \)
41 \( 1 + 7.38T + 41T^{2} \)
47 \( 1 + 11.0T + 47T^{2} \)
53 \( 1 + 9.45T + 53T^{2} \)
59 \( 1 - 3.18T + 59T^{2} \)
61 \( 1 - 4.67T + 61T^{2} \)
67 \( 1 + 3.98T + 67T^{2} \)
71 \( 1 - 6.94T + 71T^{2} \)
73 \( 1 + 2.14T + 73T^{2} \)
79 \( 1 - 6.32T + 79T^{2} \)
83 \( 1 + 7.79T + 83T^{2} \)
89 \( 1 - 13.1T + 89T^{2} \)
97 \( 1 + 17.0T + 97T^{2} \)
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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

−10.07750992107289667033914821512, −9.521862355747860830961800982045, −8.456115190894346837248446973757, −8.019639442103856477866288234520, −7.43629332537401373100508513994, −6.56032914272930969597557854947, −4.95313715060890635978659496668, −3.11325907145552746927606934624, −2.85713098637233739930496772789, −0.52215114753751240788379795000, 0.52215114753751240788379795000, 2.85713098637233739930496772789, 3.11325907145552746927606934624, 4.95313715060890635978659496668, 6.56032914272930969597557854947, 7.43629332537401373100508513994, 8.019639442103856477866288234520, 8.456115190894346837248446973757, 9.521862355747860830961800982045, 10.07750992107289667033914821512

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