Properties

Label 2-87-1.1-c3-0-5
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  + 1.14·2-s + 3·3-s − 6.68·4-s + 8.47·5-s + 3.43·6-s + 26.2·7-s − 16.8·8-s + 9·9-s + 9.71·10-s + 32.0·11-s − 20.0·12-s + 44.6·13-s + 30.1·14-s + 25.4·15-s + 34.1·16-s − 79.5·17-s + 10.3·18-s − 144.·19-s − 56.6·20-s + 78.7·21-s + 36.7·22-s + 134.·23-s − 50.5·24-s − 53.2·25-s + 51.1·26-s + 27·27-s − 175.·28-s + ⋯
L(s)  = 1  + 0.405·2-s + 0.577·3-s − 0.835·4-s + 0.757·5-s + 0.234·6-s + 1.41·7-s − 0.744·8-s + 0.333·9-s + 0.307·10-s + 0.879·11-s − 0.482·12-s + 0.951·13-s + 0.574·14-s + 0.437·15-s + 0.533·16-s − 1.13·17-s + 0.135·18-s − 1.74·19-s − 0.633·20-s + 0.818·21-s + 0.356·22-s + 1.21·23-s − 0.429·24-s − 0.425·25-s + 0.385·26-s + 0.192·27-s − 1.18·28-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

\(L(2)\) \(\approx\) \(2.281658256\)
\(L(\frac12)\) \(\approx\) \(2.281658256\)
\(L(\frac{5}{2})\) 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 \( 1 - 1.14T + 8T^{2} \)
5 \( 1 - 8.47T + 125T^{2} \)
7 \( 1 - 26.2T + 343T^{2} \)
11 \( 1 - 32.0T + 1.33e3T^{2} \)
13 \( 1 - 44.6T + 2.19e3T^{2} \)
17 \( 1 + 79.5T + 4.91e3T^{2} \)
19 \( 1 + 144.T + 6.85e3T^{2} \)
23 \( 1 - 134.T + 1.21e4T^{2} \)
31 \( 1 + 51.8T + 2.97e4T^{2} \)
37 \( 1 + 364.T + 5.06e4T^{2} \)
41 \( 1 + 337.T + 6.89e4T^{2} \)
43 \( 1 + 254.T + 7.95e4T^{2} \)
47 \( 1 + 266.T + 1.03e5T^{2} \)
53 \( 1 - 677.T + 1.48e5T^{2} \)
59 \( 1 - 321.T + 2.05e5T^{2} \)
61 \( 1 - 466.T + 2.26e5T^{2} \)
67 \( 1 + 750.T + 3.00e5T^{2} \)
71 \( 1 - 614.T + 3.57e5T^{2} \)
73 \( 1 + 645.T + 3.89e5T^{2} \)
79 \( 1 - 551.T + 4.93e5T^{2} \)
83 \( 1 + 440.T + 5.71e5T^{2} \)
89 \( 1 - 191.T + 7.04e5T^{2} \)
97 \( 1 - 770.T + 9.12e5T^{2} \)
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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

−13.67594197771700433653463042279, −13.09635181686352952110950360186, −11.60787139856947581859656733666, −10.39240006207206840014105309149, −8.819827150026105277437141902844, −8.578966190404356334684618972258, −6.57549512121996843107055536809, −5.06431011714212476442800554649, −3.93448197947135051892316652663, −1.76908492588492472794925091010, 1.76908492588492472794925091010, 3.93448197947135051892316652663, 5.06431011714212476442800554649, 6.57549512121996843107055536809, 8.578966190404356334684618972258, 8.819827150026105277437141902844, 10.39240006207206840014105309149, 11.60787139856947581859656733666, 13.09635181686352952110950360186, 13.67594197771700433653463042279

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