Properties

Label 2-7e2-1.1-c9-0-27
Degree $2$
Conductor $49$
Sign $-1$
Analytic cond. $25.2367$
Root an. cond. $5.02361$
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  + 24.4·2-s + 159.·3-s + 86.7·4-s − 2.02e3·5-s + 3.90e3·6-s − 1.04e4·8-s + 5.74e3·9-s − 4.96e4·10-s + 8.57e3·11-s + 1.38e4·12-s − 3.84e4·13-s − 3.23e5·15-s − 2.99e5·16-s − 3.01e5·17-s + 1.40e5·18-s − 9.16e5·19-s − 1.75e5·20-s + 2.09e5·22-s + 1.93e6·23-s − 1.65e6·24-s + 2.16e6·25-s − 9.40e5·26-s − 2.22e6·27-s + 4.52e6·29-s − 7.91e6·30-s + 2.94e5·31-s − 1.98e6·32-s + ⋯
L(s)  = 1  + 1.08·2-s + 1.13·3-s + 0.169·4-s − 1.45·5-s + 1.22·6-s − 0.898·8-s + 0.292·9-s − 1.56·10-s + 0.176·11-s + 0.192·12-s − 0.373·13-s − 1.64·15-s − 1.14·16-s − 0.876·17-s + 0.315·18-s − 1.61·19-s − 0.245·20-s + 0.191·22-s + 1.44·23-s − 1.02·24-s + 1.10·25-s − 0.403·26-s − 0.804·27-s + 1.18·29-s − 1.78·30-s + 0.0572·31-s − 0.335·32-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(10-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s+9/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(49\)    =    \(7^{2}\)
Sign: $-1$
Analytic conductor: \(25.2367\)
Root analytic conductor: \(5.02361\)
Motivic weight: \(9\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 49,\ (\ :9/2),\ -1)\)

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)$
bad7 \( 1 \)
good2 \( 1 - 24.4T + 512T^{2} \)
3 \( 1 - 159.T + 1.96e4T^{2} \)
5 \( 1 + 2.02e3T + 1.95e6T^{2} \)
11 \( 1 - 8.57e3T + 2.35e9T^{2} \)
13 \( 1 + 3.84e4T + 1.06e10T^{2} \)
17 \( 1 + 3.01e5T + 1.18e11T^{2} \)
19 \( 1 + 9.16e5T + 3.22e11T^{2} \)
23 \( 1 - 1.93e6T + 1.80e12T^{2} \)
29 \( 1 - 4.52e6T + 1.45e13T^{2} \)
31 \( 1 - 2.94e5T + 2.64e13T^{2} \)
37 \( 1 + 1.61e7T + 1.29e14T^{2} \)
41 \( 1 - 1.28e7T + 3.27e14T^{2} \)
43 \( 1 - 1.15e7T + 5.02e14T^{2} \)
47 \( 1 + 2.78e7T + 1.11e15T^{2} \)
53 \( 1 + 4.23e7T + 3.29e15T^{2} \)
59 \( 1 - 2.34e6T + 8.66e15T^{2} \)
61 \( 1 + 8.68e6T + 1.16e16T^{2} \)
67 \( 1 - 2.52e8T + 2.72e16T^{2} \)
71 \( 1 + 2.50e8T + 4.58e16T^{2} \)
73 \( 1 - 4.64e7T + 5.88e16T^{2} \)
79 \( 1 - 1.10e8T + 1.19e17T^{2} \)
83 \( 1 - 2.81e8T + 1.86e17T^{2} \)
89 \( 1 + 2.91e8T + 3.50e17T^{2} \)
97 \( 1 - 1.01e8T + 7.60e17T^{2} \)
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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

−13.16927548650210332440335993989, −12.25903158647858739995000352270, −11.06289064902481601671290171574, −9.020936469942880128518483901756, −8.249629716026388802159711154733, −6.76286542906088885304889480848, −4.69934440364725434874394530060, −3.76380499114535424173374942626, −2.66892152906881678304081739186, 0, 2.66892152906881678304081739186, 3.76380499114535424173374942626, 4.69934440364725434874394530060, 6.76286542906088885304889480848, 8.249629716026388802159711154733, 9.020936469942880128518483901756, 11.06289064902481601671290171574, 12.25903158647858739995000352270, 13.16927548650210332440335993989

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