Properties

Label 2-87-1.1-c3-0-1
Degree $2$
Conductor $87$
Sign $1$
Analytic cond. $5.13316$
Root an. cond. $2.26564$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 1.58·2-s − 3·3-s − 5.49·4-s − 18.8·5-s + 4.74·6-s + 29.4·7-s + 21.3·8-s + 9·9-s + 29.9·10-s + 25.6·11-s + 16.4·12-s − 8.38·13-s − 46.6·14-s + 56.6·15-s + 10.1·16-s − 70.0·17-s − 14.2·18-s + 48.9·19-s + 103.·20-s − 88.3·21-s − 40.6·22-s + 107.·23-s − 64.0·24-s + 231.·25-s + 13.2·26-s − 27·27-s − 161.·28-s + ⋯
L(s)  = 1  − 0.559·2-s − 0.577·3-s − 0.686·4-s − 1.68·5-s + 0.323·6-s + 1.59·7-s + 0.944·8-s + 0.333·9-s + 0.945·10-s + 0.703·11-s + 0.396·12-s − 0.178·13-s − 0.890·14-s + 0.975·15-s + 0.158·16-s − 0.999·17-s − 0.186·18-s + 0.590·19-s + 1.16·20-s − 0.918·21-s − 0.393·22-s + 0.971·23-s − 0.545·24-s + 1.85·25-s + 0.100·26-s − 0.192·27-s − 1.09·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 87 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 87 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(87\)    =    \(3 \cdot 29\)
Sign: $1$
Analytic conductor: \(5.13316\)
Root analytic conductor: \(2.26564\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 87,\ (\ :3/2),\ 1)\)

Particular Values

\(L(2)\) \(\approx\) \(0.6738582040\)
\(L(\frac12)\) \(\approx\) \(0.6738582040\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 + 3T \)
29 \( 1 + 29T \)
good2 \( 1 + 1.58T + 8T^{2} \)
5 \( 1 + 18.8T + 125T^{2} \)
7 \( 1 - 29.4T + 343T^{2} \)
11 \( 1 - 25.6T + 1.33e3T^{2} \)
13 \( 1 + 8.38T + 2.19e3T^{2} \)
17 \( 1 + 70.0T + 4.91e3T^{2} \)
19 \( 1 - 48.9T + 6.85e3T^{2} \)
23 \( 1 - 107.T + 1.21e4T^{2} \)
31 \( 1 - 330.T + 2.97e4T^{2} \)
37 \( 1 + 174.T + 5.06e4T^{2} \)
41 \( 1 + 6.51T + 6.89e4T^{2} \)
43 \( 1 - 424.T + 7.95e4T^{2} \)
47 \( 1 - 77.4T + 1.03e5T^{2} \)
53 \( 1 - 584.T + 1.48e5T^{2} \)
59 \( 1 + 364.T + 2.05e5T^{2} \)
61 \( 1 + 427.T + 2.26e5T^{2} \)
67 \( 1 - 248.T + 3.00e5T^{2} \)
71 \( 1 - 1.00e3T + 3.57e5T^{2} \)
73 \( 1 + 287.T + 3.89e5T^{2} \)
79 \( 1 + 925.T + 4.93e5T^{2} \)
83 \( 1 - 738.T + 5.71e5T^{2} \)
89 \( 1 - 391.T + 7.04e5T^{2} \)
97 \( 1 - 1.40e3T + 9.12e5T^{2} \)
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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

−13.79183651860018705752976297412, −12.23173670794993757786980184606, −11.45198564942509391371494944382, −10.70587469119614915637106968224, −8.974385377563786926406719682192, −8.096423537590551831984562368685, −7.19208186387962333199664067448, −4.89844256104097052945327673825, −4.17246947013417899360841638441, −0.897521062195434883324017233483, 0.897521062195434883324017233483, 4.17246947013417899360841638441, 4.89844256104097052945327673825, 7.19208186387962333199664067448, 8.096423537590551831984562368685, 8.974385377563786926406719682192, 10.70587469119614915637106968224, 11.45198564942509391371494944382, 12.23173670794993757786980184606, 13.79183651860018705752976297412

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