Properties

Label 2-87-1.1-c1-0-1
Degree $2$
Conductor $87$
Sign $1$
Analytic cond. $0.694698$
Root an. cond. $0.833485$
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  − 0.618·2-s + 3-s − 1.61·4-s + 3.23·5-s − 0.618·6-s + 0.236·7-s + 2.23·8-s + 9-s − 2.00·10-s − 0.236·11-s − 1.61·12-s − 5.47·13-s − 0.145·14-s + 3.23·15-s + 1.85·16-s + 3·17-s − 0.618·18-s − 7.23·19-s − 5.23·20-s + 0.236·21-s + 0.145·22-s − 7.70·23-s + 2.23·24-s + 5.47·25-s + 3.38·26-s + 27-s − 0.381·28-s + ⋯
L(s)  = 1  − 0.437·2-s + 0.577·3-s − 0.809·4-s + 1.44·5-s − 0.252·6-s + 0.0892·7-s + 0.790·8-s + 0.333·9-s − 0.632·10-s − 0.0711·11-s − 0.467·12-s − 1.51·13-s − 0.0389·14-s + 0.835·15-s + 0.463·16-s + 0.727·17-s − 0.145·18-s − 1.66·19-s − 1.17·20-s + 0.0515·21-s + 0.0311·22-s − 1.60·23-s + 0.456·24-s + 1.09·25-s + 0.663·26-s + 0.192·27-s − 0.0721·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 87 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 87 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(87\)    =    \(3 \cdot 29\)
Sign: $1$
Analytic conductor: \(0.694698\)
Root analytic conductor: \(0.833485\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 87,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(0.9366983275\)
\(L(\frac12)\) \(\approx\) \(0.9366983275\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 - T \)
29 \( 1 + T \)
good2 \( 1 + 0.618T + 2T^{2} \)
5 \( 1 - 3.23T + 5T^{2} \)
7 \( 1 - 0.236T + 7T^{2} \)
11 \( 1 + 0.236T + 11T^{2} \)
13 \( 1 + 5.47T + 13T^{2} \)
17 \( 1 - 3T + 17T^{2} \)
19 \( 1 + 7.23T + 19T^{2} \)
23 \( 1 + 7.70T + 23T^{2} \)
31 \( 1 - 3.70T + 31T^{2} \)
37 \( 1 - 5.23T + 37T^{2} \)
41 \( 1 - 2T + 41T^{2} \)
43 \( 1 - 4T + 43T^{2} \)
47 \( 1 - 4.70T + 47T^{2} \)
53 \( 1 - 11.2T + 53T^{2} \)
59 \( 1 - 4.47T + 59T^{2} \)
61 \( 1 + 5.23T + 61T^{2} \)
67 \( 1 + 13.1T + 67T^{2} \)
71 \( 1 + 5.23T + 71T^{2} \)
73 \( 1 - 6.76T + 73T^{2} \)
79 \( 1 + 12.7T + 79T^{2} \)
83 \( 1 - 2.94T + 83T^{2} \)
89 \( 1 - 5T + 89T^{2} \)
97 \( 1 - 18.6T + 97T^{2} \)
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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

−14.19656138291085195577105289556, −13.30822535943976405292619280405, −12.38690658068640418137094254295, −10.25919111520854853113468939749, −9.848199667372640298808001683822, −8.810338225621425421133394361693, −7.64544354559500736570238313155, −5.91703822599761461769955743526, −4.48583633468729403714404321989, −2.20009654735353763797367045973, 2.20009654735353763797367045973, 4.48583633468729403714404321989, 5.91703822599761461769955743526, 7.64544354559500736570238313155, 8.810338225621425421133394361693, 9.848199667372640298808001683822, 10.25919111520854853113468939749, 12.38690658068640418137094254295, 13.30822535943976405292619280405, 14.19656138291085195577105289556

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