Properties

Label 2-61-1.1-c1-0-3
Degree $2$
Conductor $61$
Sign $-1$
Analytic cond. $0.487087$
Root an. cond. $0.697916$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 2-s − 2·3-s − 4-s − 3·5-s + 2·6-s + 7-s + 3·8-s + 9-s + 3·10-s − 5·11-s + 2·12-s + 13-s − 14-s + 6·15-s − 16-s + 4·17-s − 18-s − 4·19-s + 3·20-s − 2·21-s + 5·22-s − 9·23-s − 6·24-s + 4·25-s − 26-s + 4·27-s − 28-s + ⋯
L(s)  = 1  − 0.707·2-s − 1.15·3-s − 1/2·4-s − 1.34·5-s + 0.816·6-s + 0.377·7-s + 1.06·8-s + 1/3·9-s + 0.948·10-s − 1.50·11-s + 0.577·12-s + 0.277·13-s − 0.267·14-s + 1.54·15-s − 1/4·16-s + 0.970·17-s − 0.235·18-s − 0.917·19-s + 0.670·20-s − 0.436·21-s + 1.06·22-s − 1.87·23-s − 1.22·24-s + 4/5·25-s − 0.196·26-s + 0.769·27-s − 0.188·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 61 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 61 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(61\)
Sign: $-1$
Analytic conductor: \(0.487087\)
Root analytic conductor: \(0.697916\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 61,\ (\ :1/2),\ -1)\)

Particular Values

\(L(1)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad61 \( 1 + T \)
good2 \( 1 + T + p T^{2} \)
3 \( 1 + 2 T + p T^{2} \)
5 \( 1 + 3 T + p T^{2} \)
7 \( 1 - T + p T^{2} \)
11 \( 1 + 5 T + p T^{2} \)
13 \( 1 - T + p T^{2} \)
17 \( 1 - 4 T + p T^{2} \)
19 \( 1 + 4 T + p T^{2} \)
23 \( 1 + 9 T + p T^{2} \)
29 \( 1 + 6 T + p T^{2} \)
31 \( 1 + p T^{2} \)
37 \( 1 - 8 T + p T^{2} \)
41 \( 1 - 5 T + p T^{2} \)
43 \( 1 + 8 T + p T^{2} \)
47 \( 1 - 4 T + p T^{2} \)
53 \( 1 - 6 T + p T^{2} \)
59 \( 1 - 9 T + p T^{2} \)
67 \( 1 + 7 T + p T^{2} \)
71 \( 1 + 8 T + p T^{2} \)
73 \( 1 + 11 T + p T^{2} \)
79 \( 1 - 3 T + p T^{2} \)
83 \( 1 - 4 T + p T^{2} \)
89 \( 1 + 4 T + p T^{2} \)
97 \( 1 + 14 T + p T^{2} \)
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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

−14.73281781004713716800542459589, −13.13927303138002944840689395149, −11.99765290224431389063190901976, −11.01835010861511067157429624329, −10.14754439690118852610085973818, −8.287570693733701613432166498970, −7.66039763333771123227596439320, −5.60157612088078313975836309422, −4.25666915587159511841100490901, 0, 4.25666915587159511841100490901, 5.60157612088078313975836309422, 7.66039763333771123227596439320, 8.287570693733701613432166498970, 10.14754439690118852610085973818, 11.01835010861511067157429624329, 11.99765290224431389063190901976, 13.13927303138002944840689395149, 14.73281781004713716800542459589

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