Properties

Label 2-1805-1.1-c1-0-15
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  − 0.860·2-s + 0.867·3-s − 1.25·4-s − 5-s − 0.746·6-s − 0.263·7-s + 2.80·8-s − 2.24·9-s + 0.860·10-s − 5.32·11-s − 1.09·12-s + 1.19·13-s + 0.227·14-s − 0.867·15-s + 0.105·16-s + 4.46·17-s + 1.93·18-s + 1.25·20-s − 0.228·21-s + 4.57·22-s − 0.920·23-s + 2.43·24-s + 25-s − 1.02·26-s − 4.55·27-s + 0.332·28-s − 9.87·29-s + ⋯
L(s)  = 1  − 0.608·2-s + 0.500·3-s − 0.629·4-s − 0.447·5-s − 0.304·6-s − 0.0997·7-s + 0.991·8-s − 0.749·9-s + 0.272·10-s − 1.60·11-s − 0.315·12-s + 0.331·13-s + 0.0606·14-s − 0.223·15-s + 0.0264·16-s + 1.08·17-s + 0.455·18-s + 0.281·20-s − 0.0499·21-s + 0.976·22-s − 0.192·23-s + 0.496·24-s + 0.200·25-s − 0.201·26-s − 0.875·27-s + 0.0628·28-s − 1.83·29-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

\(L(1)\) \(\approx\) \(0.7740306218\)
\(L(\frac12)\) \(\approx\) \(0.7740306218\)
\(L(\frac{3}{2})\) 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 \( 1 + 0.860T + 2T^{2} \)
3 \( 1 - 0.867T + 3T^{2} \)
7 \( 1 + 0.263T + 7T^{2} \)
11 \( 1 + 5.32T + 11T^{2} \)
13 \( 1 - 1.19T + 13T^{2} \)
17 \( 1 - 4.46T + 17T^{2} \)
23 \( 1 + 0.920T + 23T^{2} \)
29 \( 1 + 9.87T + 29T^{2} \)
31 \( 1 + 0.0400T + 31T^{2} \)
37 \( 1 - 7.76T + 37T^{2} \)
41 \( 1 - 6.27T + 41T^{2} \)
43 \( 1 - 10.0T + 43T^{2} \)
47 \( 1 - 8.44T + 47T^{2} \)
53 \( 1 - 4.20T + 53T^{2} \)
59 \( 1 + 8.10T + 59T^{2} \)
61 \( 1 - 0.218T + 61T^{2} \)
67 \( 1 - 3.76T + 67T^{2} \)
71 \( 1 - 10.1T + 71T^{2} \)
73 \( 1 - 9.91T + 73T^{2} \)
79 \( 1 - 0.00558T + 79T^{2} \)
83 \( 1 - 8.82T + 83T^{2} \)
89 \( 1 + 0.431T + 89T^{2} \)
97 \( 1 + 17.3T + 97T^{2} \)
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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

−9.290289324229784421035443162574, −8.404637608265544935651415666946, −7.76084103469407609255473195323, −7.53877292232525739409332744905, −5.85660221937567279743475293164, −5.31377085915789783518305018121, −4.17870086694896756834650834906, −3.30841797390228575207052584872, −2.28669470065285124084387844963, −0.62629128605433567528969246511, 0.62629128605433567528969246511, 2.28669470065285124084387844963, 3.30841797390228575207052584872, 4.17870086694896756834650834906, 5.31377085915789783518305018121, 5.85660221937567279743475293164, 7.53877292232525739409332744905, 7.76084103469407609255473195323, 8.404637608265544935651415666946, 9.290289324229784421035443162574

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