Properties

Label 2-56-1.1-c9-0-13
Degree $2$
Conductor $56$
Sign $-1$
Analytic cond. $28.8420$
Root an. cond. $5.37047$
Motivic weight $9$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 189.·3-s − 729.·5-s − 2.40e3·7-s + 1.61e4·9-s − 3.34e4·11-s − 1.31e5·13-s − 1.38e5·15-s − 5.04e5·17-s + 2.80e5·19-s − 4.54e5·21-s + 1.37e6·23-s − 1.42e6·25-s − 6.70e5·27-s + 2.14e6·29-s + 2.31e6·31-s − 6.32e6·33-s + 1.75e6·35-s − 2.44e6·37-s − 2.49e7·39-s − 3.40e7·41-s − 1.28e7·43-s − 1.17e7·45-s − 2.22e7·47-s + 5.76e6·49-s − 9.54e7·51-s + 4.76e7·53-s + 2.44e7·55-s + ⋯
L(s)  = 1  + 1.34·3-s − 0.522·5-s − 0.377·7-s + 0.819·9-s − 0.688·11-s − 1.28·13-s − 0.704·15-s − 1.46·17-s + 0.492·19-s − 0.509·21-s + 1.02·23-s − 0.727·25-s − 0.242·27-s + 0.563·29-s + 0.450·31-s − 0.928·33-s + 0.197·35-s − 0.214·37-s − 1.72·39-s − 1.88·41-s − 0.573·43-s − 0.428·45-s − 0.663·47-s + 0.142·49-s − 1.97·51-s + 0.830·53-s + 0.359·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 56 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(10-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 56 ^{s/2} \, \Gamma_{\C}(s+9/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(56\)    =    \(2^{3} \cdot 7\)
Sign: $-1$
Analytic conductor: \(28.8420\)
Root analytic conductor: \(5.37047\)
Motivic weight: \(9\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 56,\ (\ :9/2),\ -1)\)

Particular Values

\(L(5)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{11}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
7 \( 1 + 2.40e3T \)
good3 \( 1 - 189.T + 1.96e4T^{2} \)
5 \( 1 + 729.T + 1.95e6T^{2} \)
11 \( 1 + 3.34e4T + 2.35e9T^{2} \)
13 \( 1 + 1.31e5T + 1.06e10T^{2} \)
17 \( 1 + 5.04e5T + 1.18e11T^{2} \)
19 \( 1 - 2.80e5T + 3.22e11T^{2} \)
23 \( 1 - 1.37e6T + 1.80e12T^{2} \)
29 \( 1 - 2.14e6T + 1.45e13T^{2} \)
31 \( 1 - 2.31e6T + 2.64e13T^{2} \)
37 \( 1 + 2.44e6T + 1.29e14T^{2} \)
41 \( 1 + 3.40e7T + 3.27e14T^{2} \)
43 \( 1 + 1.28e7T + 5.02e14T^{2} \)
47 \( 1 + 2.22e7T + 1.11e15T^{2} \)
53 \( 1 - 4.76e7T + 3.29e15T^{2} \)
59 \( 1 + 1.04e7T + 8.66e15T^{2} \)
61 \( 1 + 5.53e7T + 1.16e16T^{2} \)
67 \( 1 + 2.10e8T + 2.72e16T^{2} \)
71 \( 1 - 2.00e8T + 4.58e16T^{2} \)
73 \( 1 - 3.73e8T + 5.88e16T^{2} \)
79 \( 1 + 1.59e8T + 1.19e17T^{2} \)
83 \( 1 - 2.02e8T + 1.86e17T^{2} \)
89 \( 1 + 2.91e8T + 3.50e17T^{2} \)
97 \( 1 - 7.97e8T + 7.60e17T^{2} \)
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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

−13.03837742796310815364330427980, −11.71128867607423890126690001971, −10.15659174999226919968439429932, −9.053544037250333776475004945493, −8.014783233017976394429587599810, −6.95597219647352061561149595434, −4.81319446127923288418302911128, −3.29536195782328239556843341376, −2.25453664697253233675057329534, 0, 2.25453664697253233675057329534, 3.29536195782328239556843341376, 4.81319446127923288418302911128, 6.95597219647352061561149595434, 8.014783233017976394429587599810, 9.053544037250333776475004945493, 10.15659174999226919968439429932, 11.71128867607423890126690001971, 13.03837742796310815364330427980

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