Properties

Label 2-805-1.1-c1-0-42
Degree $2$
Conductor $805$
Sign $-1$
Analytic cond. $6.42795$
Root an. cond. $2.53534$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2·2-s − 3-s + 2·4-s − 5-s − 2·6-s − 7-s − 2·9-s − 2·10-s − 5·11-s − 2·12-s + 3·13-s − 2·14-s + 15-s − 4·16-s − 5·17-s − 4·18-s − 2·20-s + 21-s − 10·22-s − 23-s + 25-s + 6·26-s + 5·27-s − 2·28-s + 3·29-s + 2·30-s + 6·31-s + ⋯
L(s)  = 1  + 1.41·2-s − 0.577·3-s + 4-s − 0.447·5-s − 0.816·6-s − 0.377·7-s − 2/3·9-s − 0.632·10-s − 1.50·11-s − 0.577·12-s + 0.832·13-s − 0.534·14-s + 0.258·15-s − 16-s − 1.21·17-s − 0.942·18-s − 0.447·20-s + 0.218·21-s − 2.13·22-s − 0.208·23-s + 1/5·25-s + 1.17·26-s + 0.962·27-s − 0.377·28-s + 0.557·29-s + 0.365·30-s + 1.07·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 805 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 805 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(805\)    =    \(5 \cdot 7 \cdot 23\)
Sign: $-1$
Analytic conductor: \(6.42795\)
Root analytic conductor: \(2.53534\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 805,\ (\ :1/2),\ -1)\)

Particular Values

\(L(1)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad5 \( 1 + T \)
7 \( 1 + T \)
23 \( 1 + T \)
good2 \( 1 - p T + p T^{2} \)
3 \( 1 + T + p T^{2} \)
11 \( 1 + 5 T + p T^{2} \)
13 \( 1 - 3 T + p T^{2} \)
17 \( 1 + 5 T + p T^{2} \)
19 \( 1 + p T^{2} \)
29 \( 1 - 3 T + p T^{2} \)
31 \( 1 - 6 T + p T^{2} \)
37 \( 1 + 4 T + p T^{2} \)
41 \( 1 + p T^{2} \)
43 \( 1 + 2 T + p T^{2} \)
47 \( 1 + 9 T + p T^{2} \)
53 \( 1 + 6 T + p T^{2} \)
59 \( 1 + 6 T + p T^{2} \)
61 \( 1 - 10 T + p T^{2} \)
67 \( 1 - 4 T + p T^{2} \)
71 \( 1 + 8 T + p T^{2} \)
73 \( 1 - 10 T + p T^{2} \)
79 \( 1 + 15 T + p T^{2} \)
83 \( 1 - 12 T + p T^{2} \)
89 \( 1 + 10 T + p T^{2} \)
97 \( 1 - 7 T + p T^{2} \)
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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

−10.19088948384714538493823702201, −8.815775547612089210365847118991, −8.088997236407093398136755587737, −6.73583674342883967453753798377, −6.14576399565931630270892532621, −5.22615496619836725047595629293, −4.56794494570433530257579526757, −3.39517376220725744927159548680, −2.55266460829949316145212153910, 0, 2.55266460829949316145212153910, 3.39517376220725744927159548680, 4.56794494570433530257579526757, 5.22615496619836725047595629293, 6.14576399565931630270892532621, 6.73583674342883967453753798377, 8.088997236407093398136755587737, 8.815775547612089210365847118991, 10.19088948384714538493823702201

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