Properties

Label 2-14-1.1-c7-0-2
Degree $2$
Conductor $14$
Sign $1$
Analytic cond. $4.37339$
Root an. cond. $2.09126$
Motivic weight $7$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 8·2-s + 79.3·3-s + 64·4-s − 336.·5-s + 634.·6-s + 343·7-s + 512·8-s + 4.11e3·9-s − 2.69e3·10-s − 7.30e3·11-s + 5.07e3·12-s + 5.18e3·13-s + 2.74e3·14-s − 2.66e4·15-s + 4.09e3·16-s − 2.32e4·17-s + 3.29e4·18-s − 1.08e4·19-s − 2.15e4·20-s + 2.72e4·21-s − 5.84e4·22-s + 3.37e4·23-s + 4.06e4·24-s + 3.50e4·25-s + 4.15e4·26-s + 1.52e5·27-s + 2.19e4·28-s + ⋯
L(s)  = 1  + 0.707·2-s + 1.69·3-s + 0.5·4-s − 1.20·5-s + 1.20·6-s + 0.377·7-s + 0.353·8-s + 1.88·9-s − 0.850·10-s − 1.65·11-s + 0.848·12-s + 0.654·13-s + 0.267·14-s − 2.04·15-s + 0.250·16-s − 1.14·17-s + 1.32·18-s − 0.364·19-s − 0.601·20-s + 0.641·21-s − 1.16·22-s + 0.578·23-s + 0.600·24-s + 0.448·25-s + 0.463·26-s + 1.49·27-s + 0.188·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 14 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(8-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 14 ^{s/2} \, \Gamma_{\C}(s+7/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(14\)    =    \(2 \cdot 7\)
Sign: $1$
Analytic conductor: \(4.37339\)
Root analytic conductor: \(2.09126\)
Motivic weight: \(7\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 14,\ (\ :7/2),\ 1)\)

Particular Values

\(L(4)\) \(\approx\) \(2.921162821\)
\(L(\frac12)\) \(\approx\) \(2.921162821\)
\(L(\frac{9}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - 8T \)
7 \( 1 - 343T \)
good3 \( 1 - 79.3T + 2.18e3T^{2} \)
5 \( 1 + 336.T + 7.81e4T^{2} \)
11 \( 1 + 7.30e3T + 1.94e7T^{2} \)
13 \( 1 - 5.18e3T + 6.27e7T^{2} \)
17 \( 1 + 2.32e4T + 4.10e8T^{2} \)
19 \( 1 + 1.08e4T + 8.93e8T^{2} \)
23 \( 1 - 3.37e4T + 3.40e9T^{2} \)
29 \( 1 - 1.86e5T + 1.72e10T^{2} \)
31 \( 1 + 9.81e4T + 2.75e10T^{2} \)
37 \( 1 - 2.83e5T + 9.49e10T^{2} \)
41 \( 1 + 2.41e5T + 1.94e11T^{2} \)
43 \( 1 - 7.47e5T + 2.71e11T^{2} \)
47 \( 1 - 1.01e6T + 5.06e11T^{2} \)
53 \( 1 - 2.17e5T + 1.17e12T^{2} \)
59 \( 1 + 2.04e6T + 2.48e12T^{2} \)
61 \( 1 + 1.16e6T + 3.14e12T^{2} \)
67 \( 1 - 1.32e6T + 6.06e12T^{2} \)
71 \( 1 + 1.28e6T + 9.09e12T^{2} \)
73 \( 1 - 2.59e6T + 1.10e13T^{2} \)
79 \( 1 + 2.40e6T + 1.92e13T^{2} \)
83 \( 1 + 5.37e6T + 2.71e13T^{2} \)
89 \( 1 + 1.19e7T + 4.42e13T^{2} \)
97 \( 1 - 1.35e6T + 8.07e13T^{2} \)
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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

−18.48870653177884693883999159473, −15.71305139033508613637601604359, −15.31521974524426755625985858807, −13.87275490934686569764747797991, −12.79038525539739510320935706374, −10.86184825871760964475429173494, −8.541009450182979465383318826687, −7.53163107215122510530346352517, −4.28755129134426173199809657044, −2.70780669138372545543165694745, 2.70780669138372545543165694745, 4.28755129134426173199809657044, 7.53163107215122510530346352517, 8.541009450182979465383318826687, 10.86184825871760964475429173494, 12.79038525539739510320935706374, 13.87275490934686569764747797991, 15.31521974524426755625985858807, 15.71305139033508613637601604359, 18.48870653177884693883999159473

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