Properties

Label 2-195-1.1-c1-0-6
Degree $2$
Conductor $195$
Sign $1$
Analytic cond. $1.55708$
Root an. cond. $1.24783$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2·2-s + 3-s + 2·4-s + 5-s + 2·6-s − 3·7-s + 9-s + 2·10-s − 5·11-s + 2·12-s + 13-s − 6·14-s + 15-s − 4·16-s + 5·17-s + 2·18-s + 2·19-s + 2·20-s − 3·21-s − 10·22-s − 23-s + 25-s + 2·26-s + 27-s − 6·28-s + 10·29-s + 2·30-s + ⋯
L(s)  = 1  + 1.41·2-s + 0.577·3-s + 4-s + 0.447·5-s + 0.816·6-s − 1.13·7-s + 1/3·9-s + 0.632·10-s − 1.50·11-s + 0.577·12-s + 0.277·13-s − 1.60·14-s + 0.258·15-s − 16-s + 1.21·17-s + 0.471·18-s + 0.458·19-s + 0.447·20-s − 0.654·21-s − 2.13·22-s − 0.208·23-s + 1/5·25-s + 0.392·26-s + 0.192·27-s − 1.13·28-s + 1.85·29-s + 0.365·30-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 195 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 195 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(195\)    =    \(3 \cdot 5 \cdot 13\)
Sign: $1$
Analytic conductor: \(1.55708\)
Root analytic conductor: \(1.24783\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 195,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.479355493\)
\(L(\frac12)\) \(\approx\) \(2.479355493\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 - T \)
5 \( 1 - T \)
13 \( 1 - T \)
good2 \( 1 - p T + p T^{2} \)
7 \( 1 + 3 T + p T^{2} \)
11 \( 1 + 5 T + p T^{2} \)
17 \( 1 - 5 T + p T^{2} \)
19 \( 1 - 2 T + p T^{2} \)
23 \( 1 + T + p T^{2} \)
29 \( 1 - 10 T + p T^{2} \)
31 \( 1 + 2 T + p T^{2} \)
37 \( 1 + 3 T + p T^{2} \)
41 \( 1 + 9 T + p T^{2} \)
43 \( 1 + 4 T + p T^{2} \)
47 \( 1 - 10 T + p T^{2} \)
53 \( 1 - 9 T + p T^{2} \)
59 \( 1 + p T^{2} \)
61 \( 1 + 11 T + p T^{2} \)
67 \( 1 + 4 T + p T^{2} \)
71 \( 1 - 15 T + p T^{2} \)
73 \( 1 - 6 T + p T^{2} \)
79 \( 1 + 11 T + p T^{2} \)
83 \( 1 - 8 T + p T^{2} \)
89 \( 1 + 11 T + p T^{2} \)
97 \( 1 + 9 T + p T^{2} \)
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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

−12.70705052788882338740212030436, −12.12132680691425538467753717871, −10.48774420896020938364797406259, −9.740914180850663168496545923199, −8.434475207546954053625988897044, −7.07755893352212952629549495812, −5.93954304028653148352357105381, −5.02803177361324098534837817934, −3.48200443418719418963780366073, −2.70048152954381141744823279421, 2.70048152954381141744823279421, 3.48200443418719418963780366073, 5.02803177361324098534837817934, 5.93954304028653148352357105381, 7.07755893352212952629549495812, 8.434475207546954053625988897044, 9.740914180850663168496545923199, 10.48774420896020938364797406259, 12.12132680691425538467753717871, 12.70705052788882338740212030436

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