Properties

Label 2-1805-1.1-c1-0-47
Degree $2$
Conductor $1805$
Sign $1$
Analytic cond. $14.4129$
Root an. cond. $3.79644$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 0.632·2-s + 1.91·3-s − 1.59·4-s + 5-s − 1.21·6-s + 4.08·7-s + 2.27·8-s + 0.685·9-s − 0.632·10-s − 4.34·11-s − 3.07·12-s + 1.55·13-s − 2.58·14-s + 1.91·15-s + 1.75·16-s + 6.36·17-s − 0.433·18-s − 1.59·20-s + 7.84·21-s + 2.75·22-s − 3.36·23-s + 4.37·24-s + 25-s − 0.981·26-s − 4.44·27-s − 6.54·28-s + 5.21·29-s + ⋯
L(s)  = 1  − 0.447·2-s + 1.10·3-s − 0.799·4-s + 0.447·5-s − 0.495·6-s + 1.54·7-s + 0.805·8-s + 0.228·9-s − 0.200·10-s − 1.31·11-s − 0.886·12-s + 0.430·13-s − 0.691·14-s + 0.495·15-s + 0.439·16-s + 1.54·17-s − 0.102·18-s − 0.357·20-s + 1.71·21-s + 0.586·22-s − 0.701·23-s + 0.892·24-s + 0.200·25-s − 0.192·26-s − 0.855·27-s − 1.23·28-s + 0.967·29-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1805 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1805 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1805\)    =    \(5 \cdot 19^{2}\)
Sign: $1$
Analytic conductor: \(14.4129\)
Root analytic conductor: \(3.79644\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 1805,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.134715894\)
\(L(\frac12)\) \(\approx\) \(2.134715894\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad5 \( 1 - T \)
19 \( 1 \)
good2 \( 1 + 0.632T + 2T^{2} \)
3 \( 1 - 1.91T + 3T^{2} \)
7 \( 1 - 4.08T + 7T^{2} \)
11 \( 1 + 4.34T + 11T^{2} \)
13 \( 1 - 1.55T + 13T^{2} \)
17 \( 1 - 6.36T + 17T^{2} \)
23 \( 1 + 3.36T + 23T^{2} \)
29 \( 1 - 5.21T + 29T^{2} \)
31 \( 1 - 6.56T + 31T^{2} \)
37 \( 1 - 0.180T + 37T^{2} \)
41 \( 1 - 0.0257T + 41T^{2} \)
43 \( 1 - 4.57T + 43T^{2} \)
47 \( 1 + 1.43T + 47T^{2} \)
53 \( 1 + 1.60T + 53T^{2} \)
59 \( 1 - 9.54T + 59T^{2} \)
61 \( 1 + 6.09T + 61T^{2} \)
67 \( 1 - 10.2T + 67T^{2} \)
71 \( 1 + 10.8T + 71T^{2} \)
73 \( 1 + 13.6T + 73T^{2} \)
79 \( 1 - 17.2T + 79T^{2} \)
83 \( 1 + 5.15T + 83T^{2} \)
89 \( 1 + 0.507T + 89T^{2} \)
97 \( 1 - 3.28T + 97T^{2} \)
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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

−9.073290331937672894464443534297, −8.301109693966407188208415700736, −8.063114066629258820703948382256, −7.49808077887665397790886265963, −5.83302111194120592590576177971, −5.13347484123774014479918831351, −4.34771552465986071148056855808, −3.20452783616271510984941270593, −2.19144947911292563907688144199, −1.10827181142028850684445932732, 1.10827181142028850684445932732, 2.19144947911292563907688144199, 3.20452783616271510984941270593, 4.34771552465986071148056855808, 5.13347484123774014479918831351, 5.83302111194120592590576177971, 7.49808077887665397790886265963, 8.063114066629258820703948382256, 8.301109693966407188208415700736, 9.073290331937672894464443534297

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