Properties

Label 2-87-1.1-c1-0-2
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  + 1.46·2-s − 3-s + 0.139·4-s + 3.72·5-s − 1.46·6-s − 1.32·7-s − 2.72·8-s + 9-s + 5.44·10-s − 5.32·11-s − 0.139·12-s + 2.39·13-s − 1.93·14-s − 3.72·15-s − 4.25·16-s − 5.04·17-s + 1.46·18-s + 0.925·19-s + 0.518·20-s + 1.32·21-s − 7.78·22-s + 5.72·23-s + 2.72·24-s + 8.85·25-s + 3.50·26-s − 27-s − 0.184·28-s + ⋯
L(s)  = 1  + 1.03·2-s − 0.577·3-s + 0.0695·4-s + 1.66·5-s − 0.597·6-s − 0.500·7-s − 0.962·8-s + 0.333·9-s + 1.72·10-s − 1.60·11-s − 0.0401·12-s + 0.665·13-s − 0.517·14-s − 0.960·15-s − 1.06·16-s − 1.22·17-s + 0.344·18-s + 0.212·19-s + 0.115·20-s + 0.288·21-s − 1.65·22-s + 1.19·23-s + 0.555·24-s + 1.77·25-s + 0.687·26-s − 0.192·27-s − 0.0348·28-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

\(L(1)\) \(\approx\) \(1.353708713\)
\(L(\frac12)\) \(\approx\) \(1.353708713\)
\(L(\frac{3}{2})\) 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 \( 1 - 1.46T + 2T^{2} \)
5 \( 1 - 3.72T + 5T^{2} \)
7 \( 1 + 1.32T + 7T^{2} \)
11 \( 1 + 5.32T + 11T^{2} \)
13 \( 1 - 2.39T + 13T^{2} \)
17 \( 1 + 5.04T + 17T^{2} \)
19 \( 1 - 0.925T + 19T^{2} \)
23 \( 1 - 5.72T + 23T^{2} \)
31 \( 1 - 5.72T + 31T^{2} \)
37 \( 1 - 1.07T + 37T^{2} \)
41 \( 1 + 11.2T + 41T^{2} \)
43 \( 1 - 9.29T + 43T^{2} \)
47 \( 1 - 3.97T + 47T^{2} \)
53 \( 1 - 2.12T + 53T^{2} \)
59 \( 1 + 1.35T + 59T^{2} \)
61 \( 1 - 2.92T + 61T^{2} \)
67 \( 1 + 7.97T + 67T^{2} \)
71 \( 1 + 4.12T + 71T^{2} \)
73 \( 1 + 1.07T + 73T^{2} \)
79 \( 1 - 8.36T + 79T^{2} \)
83 \( 1 + 4.79T + 83T^{2} \)
89 \( 1 + 0.547T + 89T^{2} \)
97 \( 1 + 5.57T + 97T^{2} \)
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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

−13.55279162438137608597014146268, −13.44892495713606964181803530730, −12.56347159316272050538248874774, −10.97150262426378419697287322230, −9.980046809237475541709886375772, −8.845876907000719840823775694028, −6.62921567822898276532781437031, −5.72754420404654707034576687104, −4.84531528171055805336140400292, −2.73387108539709217330115468964, 2.73387108539709217330115468964, 4.84531528171055805336140400292, 5.72754420404654707034576687104, 6.62921567822898276532781437031, 8.845876907000719840823775694028, 9.980046809237475541709886375772, 10.97150262426378419697287322230, 12.56347159316272050538248874774, 13.44892495713606964181803530730, 13.55279162438137608597014146268

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