Properties

Label 2-1805-1.1-c1-0-20
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  + 0.690·2-s − 0.694·3-s − 1.52·4-s + 5-s − 0.479·6-s − 2.33·7-s − 2.43·8-s − 2.51·9-s + 0.690·10-s + 4.57·11-s + 1.05·12-s + 1.28·13-s − 1.61·14-s − 0.694·15-s + 1.36·16-s − 0.654·17-s − 1.73·18-s − 1.52·20-s + 1.62·21-s + 3.15·22-s − 5.56·23-s + 1.68·24-s + 25-s + 0.884·26-s + 3.83·27-s + 3.55·28-s − 4.73·29-s + ⋯
L(s)  = 1  + 0.487·2-s − 0.401·3-s − 0.761·4-s + 0.447·5-s − 0.195·6-s − 0.882·7-s − 0.859·8-s − 0.839·9-s + 0.218·10-s + 1.38·11-s + 0.305·12-s + 0.355·13-s − 0.430·14-s − 0.179·15-s + 0.342·16-s − 0.158·17-s − 0.409·18-s − 0.340·20-s + 0.353·21-s + 0.673·22-s − 1.16·23-s + 0.344·24-s + 0.200·25-s + 0.173·26-s + 0.737·27-s + 0.672·28-s − 0.878·29-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

\(L(1)\) \(\approx\) \(1.292404102\)
\(L(\frac12)\) \(\approx\) \(1.292404102\)
\(L(\frac{3}{2})\) 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 \( 1 - 0.690T + 2T^{2} \)
3 \( 1 + 0.694T + 3T^{2} \)
7 \( 1 + 2.33T + 7T^{2} \)
11 \( 1 - 4.57T + 11T^{2} \)
13 \( 1 - 1.28T + 13T^{2} \)
17 \( 1 + 0.654T + 17T^{2} \)
23 \( 1 + 5.56T + 23T^{2} \)
29 \( 1 + 4.73T + 29T^{2} \)
31 \( 1 + 4.48T + 31T^{2} \)
37 \( 1 - 7.79T + 37T^{2} \)
41 \( 1 - 8.69T + 41T^{2} \)
43 \( 1 - 9.58T + 43T^{2} \)
47 \( 1 - 6.32T + 47T^{2} \)
53 \( 1 - 6.60T + 53T^{2} \)
59 \( 1 - 5.89T + 59T^{2} \)
61 \( 1 + 7.49T + 61T^{2} \)
67 \( 1 - 13.0T + 67T^{2} \)
71 \( 1 - 3.75T + 71T^{2} \)
73 \( 1 - 7.96T + 73T^{2} \)
79 \( 1 - 6.30T + 79T^{2} \)
83 \( 1 + 9.83T + 83T^{2} \)
89 \( 1 - 12.1T + 89T^{2} \)
97 \( 1 - 4.20T + 97T^{2} \)
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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

−9.255286686215132646152601231862, −8.802085300841517149863308695478, −7.68325791891429897736156379653, −6.41245865611690843485846763912, −6.04998521903949911720497515486, −5.38962822558292841772405043940, −4.14368982210964638394511360889, −3.65060998325161249492532421557, −2.44228204446614509098300381439, −0.73051962673177732544841938186, 0.73051962673177732544841938186, 2.44228204446614509098300381439, 3.65060998325161249492532421557, 4.14368982210964638394511360889, 5.38962822558292841772405043940, 6.04998521903949911720497515486, 6.41245865611690843485846763912, 7.68325791891429897736156379653, 8.802085300841517149863308695478, 9.255286686215132646152601231862

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