Properties

Label 2-1805-1.1-c1-0-53
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  + 2.50·2-s − 1.22·3-s + 4.28·4-s − 5-s − 3.06·6-s − 0.221·7-s + 5.72·8-s − 1.50·9-s − 2.50·10-s − 0.778·11-s − 5.23·12-s + 5·13-s − 0.556·14-s + 1.22·15-s + 5.79·16-s + 7.07·17-s − 3.77·18-s − 4.28·20-s + 0.271·21-s − 1.95·22-s + 8.07·23-s − 6.99·24-s + 25-s + 12.5·26-s + 5.50·27-s − 0.950·28-s − 0.221·29-s + ⋯
L(s)  = 1  + 1.77·2-s − 0.705·3-s + 2.14·4-s − 0.447·5-s − 1.25·6-s − 0.0838·7-s + 2.02·8-s − 0.502·9-s − 0.792·10-s − 0.234·11-s − 1.51·12-s + 1.38·13-s − 0.148·14-s + 0.315·15-s + 1.44·16-s + 1.71·17-s − 0.890·18-s − 0.958·20-s + 0.0591·21-s − 0.415·22-s + 1.68·23-s − 1.42·24-s + 0.200·25-s + 2.45·26-s + 1.05·27-s − 0.179·28-s − 0.0412·29-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

\(L(1)\) \(\approx\) \(3.922163657\)
\(L(\frac12)\) \(\approx\) \(3.922163657\)
\(L(\frac{3}{2})\) 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 \( 1 - 2.50T + 2T^{2} \)
3 \( 1 + 1.22T + 3T^{2} \)
7 \( 1 + 0.221T + 7T^{2} \)
11 \( 1 + 0.778T + 11T^{2} \)
13 \( 1 - 5T + 13T^{2} \)
17 \( 1 - 7.07T + 17T^{2} \)
23 \( 1 - 8.07T + 23T^{2} \)
29 \( 1 + 0.221T + 29T^{2} \)
31 \( 1 + 2.50T + 31T^{2} \)
37 \( 1 - 1.90T + 37T^{2} \)
41 \( 1 - 7.23T + 41T^{2} \)
43 \( 1 - 7.29T + 43T^{2} \)
47 \( 1 + 2.79T + 47T^{2} \)
53 \( 1 + 4.38T + 53T^{2} \)
59 \( 1 - 2.79T + 59T^{2} \)
61 \( 1 + 12.5T + 61T^{2} \)
67 \( 1 - 10.5T + 67T^{2} \)
71 \( 1 - 9.84T + 71T^{2} \)
73 \( 1 + 14.0T + 73T^{2} \)
79 \( 1 + 1.58T + 79T^{2} \)
83 \( 1 + 9.52T + 83T^{2} \)
89 \( 1 + 3.14T + 89T^{2} \)
97 \( 1 - 6.36T + 97T^{2} \)
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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

−9.304949834538538340979393740436, −8.222989055078118401426871969071, −7.36947446937082273637432943860, −6.48424287429884955539389438704, −5.78318229225283275498511470231, −5.31007713684764805376829016097, −4.40019781541403609919521142526, −3.42506482079454655969003585468, −2.89225026118969653358759324495, −1.16585413015734357875497579948, 1.16585413015734357875497579948, 2.89225026118969653358759324495, 3.42506482079454655969003585468, 4.40019781541403609919521142526, 5.31007713684764805376829016097, 5.78318229225283275498511470231, 6.48424287429884955539389438704, 7.36947446937082273637432943860, 8.222989055078118401426871969071, 9.304949834538538340979393740436

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