Properties

Label 2-7-1.1-c11-0-4
Degree $2$
Conductor $7$
Sign $-1$
Analytic cond. $5.37840$
Root an. cond. $2.31913$
Motivic weight $11$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 31.0·2-s − 288.·3-s − 1.08e3·4-s − 6.16e3·5-s − 8.94e3·6-s + 1.68e4·7-s − 9.72e4·8-s − 9.40e4·9-s − 1.91e5·10-s − 1.33e5·11-s + 3.12e5·12-s + 1.72e6·13-s + 5.21e5·14-s + 1.77e6·15-s − 7.97e5·16-s + 1.90e6·17-s − 2.91e6·18-s − 1.35e7·19-s + 6.68e6·20-s − 4.84e6·21-s − 4.15e6·22-s − 3.53e7·23-s + 2.80e7·24-s − 1.07e7·25-s + 5.36e7·26-s + 7.81e7·27-s − 1.82e7·28-s + ⋯
L(s)  = 1  + 0.685·2-s − 0.684·3-s − 0.529·4-s − 0.882·5-s − 0.469·6-s + 0.377·7-s − 1.04·8-s − 0.530·9-s − 0.605·10-s − 0.250·11-s + 0.362·12-s + 1.29·13-s + 0.259·14-s + 0.604·15-s − 0.190·16-s + 0.324·17-s − 0.364·18-s − 1.25·19-s + 0.467·20-s − 0.258·21-s − 0.172·22-s − 1.14·23-s + 0.718·24-s − 0.220·25-s + 0.885·26-s + 1.04·27-s − 0.200·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 7 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(12-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 7 ^{s/2} \, \Gamma_{\C}(s+11/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(7\)
Sign: $-1$
Analytic conductor: \(5.37840\)
Root analytic conductor: \(2.31913\)
Motivic weight: \(11\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 7,\ (\ :11/2),\ -1)\)

Particular Values

\(L(6)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{13}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad7 \( 1 - 1.68e4T \)
good2 \( 1 - 31.0T + 2.04e3T^{2} \)
3 \( 1 + 288.T + 1.77e5T^{2} \)
5 \( 1 + 6.16e3T + 4.88e7T^{2} \)
11 \( 1 + 1.33e5T + 2.85e11T^{2} \)
13 \( 1 - 1.72e6T + 1.79e12T^{2} \)
17 \( 1 - 1.90e6T + 3.42e13T^{2} \)
19 \( 1 + 1.35e7T + 1.16e14T^{2} \)
23 \( 1 + 3.53e7T + 9.52e14T^{2} \)
29 \( 1 + 8.11e7T + 1.22e16T^{2} \)
31 \( 1 + 8.72e7T + 2.54e16T^{2} \)
37 \( 1 + 5.94e8T + 1.77e17T^{2} \)
41 \( 1 + 1.60e8T + 5.50e17T^{2} \)
43 \( 1 - 1.44e9T + 9.29e17T^{2} \)
47 \( 1 - 2.49e9T + 2.47e18T^{2} \)
53 \( 1 + 5.86e9T + 9.26e18T^{2} \)
59 \( 1 + 4.50e9T + 3.01e19T^{2} \)
61 \( 1 - 1.08e10T + 4.35e19T^{2} \)
67 \( 1 - 1.67e10T + 1.22e20T^{2} \)
71 \( 1 + 8.61e9T + 2.31e20T^{2} \)
73 \( 1 + 3.88e9T + 3.13e20T^{2} \)
79 \( 1 + 2.42e10T + 7.47e20T^{2} \)
83 \( 1 + 1.68e10T + 1.28e21T^{2} \)
89 \( 1 + 7.34e10T + 2.77e21T^{2} \)
97 \( 1 + 8.43e10T + 7.15e21T^{2} \)
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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

−18.81276157193396313880207906295, −17.44837445569119936302030383152, −15.70646079649871382256335496444, −14.14395809131426295990184866016, −12.43924517480024763449603333298, −11.09305020580375350138968234729, −8.440986099086814035453753842598, −5.77480118422244121392872850335, −3.96073224635113559685749478845, 0, 3.96073224635113559685749478845, 5.77480118422244121392872850335, 8.440986099086814035453753842598, 11.09305020580375350138968234729, 12.43924517480024763449603333298, 14.14395809131426295990184866016, 15.70646079649871382256335496444, 17.44837445569119936302030383152, 18.81276157193396313880207906295

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