Properties

Label 2-7e2-1.1-c5-0-9
Degree $2$
Conductor $49$
Sign $1$
Analytic cond. $7.85880$
Root an. cond. $2.80335$
Motivic weight $5$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 11·2-s + 89·4-s + 627·8-s − 243·9-s − 76·11-s + 4.04e3·16-s − 2.67e3·18-s − 836·22-s − 4.95e3·23-s − 3.12e3·25-s + 7.28e3·29-s + 2.44e4·32-s − 2.16e4·36-s − 8.88e3·37-s + 1.17e4·43-s − 6.76e3·44-s − 5.44e4·46-s − 3.43e4·50-s + 2.45e4·53-s + 8.01e4·58-s + 1.39e5·64-s + 6.93e4·67-s − 2.22e3·71-s − 1.52e5·72-s − 9.77e4·74-s + 8.01e4·79-s + 5.90e4·81-s + ⋯
L(s)  = 1  + 1.94·2-s + 2.78·4-s + 3.46·8-s − 9-s − 0.189·11-s + 3.95·16-s − 1.94·18-s − 0.368·22-s − 1.95·23-s − 25-s + 1.60·29-s + 4.22·32-s − 2.78·36-s − 1.06·37-s + 0.968·43-s − 0.526·44-s − 3.79·46-s − 1.94·50-s + 1.20·53-s + 3.12·58-s + 4.26·64-s + 1.88·67-s − 0.0523·71-s − 3.46·72-s − 2.07·74-s + 1.44·79-s + 81-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(6-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s+5/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(49\)    =    \(7^{2}\)
Sign: $1$
Analytic conductor: \(7.85880\)
Root analytic conductor: \(2.80335\)
Motivic weight: \(5\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 49,\ (\ :5/2),\ 1)\)

Particular Values

\(L(3)\) \(\approx\) \(4.789031632\)
\(L(\frac12)\) \(\approx\) \(4.789031632\)
\(L(\frac{7}{2})\) 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 \( 1 - 11 T + p^{5} T^{2} \)
3 \( 1 + p^{5} T^{2} \)
5 \( 1 + p^{5} T^{2} \)
11 \( 1 + 76 T + p^{5} T^{2} \)
13 \( 1 + p^{5} T^{2} \)
17 \( 1 + p^{5} T^{2} \)
19 \( 1 + p^{5} T^{2} \)
23 \( 1 + 4952 T + p^{5} T^{2} \)
29 \( 1 - 7282 T + p^{5} T^{2} \)
31 \( 1 + p^{5} T^{2} \)
37 \( 1 + 8886 T + p^{5} T^{2} \)
41 \( 1 + p^{5} T^{2} \)
43 \( 1 - 11748 T + p^{5} T^{2} \)
47 \( 1 + p^{5} T^{2} \)
53 \( 1 - 24550 T + p^{5} T^{2} \)
59 \( 1 + p^{5} T^{2} \)
61 \( 1 + p^{5} T^{2} \)
67 \( 1 - 69364 T + p^{5} T^{2} \)
71 \( 1 + 2224 T + p^{5} T^{2} \)
73 \( 1 + p^{5} T^{2} \)
79 \( 1 - 80168 T + p^{5} T^{2} \)
83 \( 1 + p^{5} T^{2} \)
89 \( 1 + p^{5} T^{2} \)
97 \( 1 + p^{5} T^{2} \)
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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

−14.20848071968594010997925807528, −13.75221005431101934413526524494, −12.33749252705086513358251775155, −11.63703710394489690966756449865, −10.37877500556039558438893736887, −7.990182933657525694443128082525, −6.40342148313154426130011603500, −5.37553365407843762437980949288, −3.87684209497451042187170083156, −2.39017691979332942802368567952, 2.39017691979332942802368567952, 3.87684209497451042187170083156, 5.37553365407843762437980949288, 6.40342148313154426130011603500, 7.990182933657525694443128082525, 10.37877500556039558438893736887, 11.63703710394489690966756449865, 12.33749252705086513358251775155, 13.75221005431101934413526524494, 14.20848071968594010997925807528

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