Properties

Label 2-1840-1.1-c1-0-28
Degree $2$
Conductor $1840$
Sign $-1$
Analytic cond. $14.6924$
Root an. cond. $3.83307$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 2.56·3-s + 5-s + 1.56·7-s + 3.56·9-s − 2·11-s + 0.561·13-s − 2.56·15-s − 1.56·17-s − 6·19-s − 4·21-s − 23-s + 25-s − 1.43·27-s − 2.12·29-s + 9.24·31-s + 5.12·33-s + 1.56·35-s − 0.438·37-s − 1.43·39-s − 4.12·41-s + 3.56·45-s + 7.68·47-s − 4.56·49-s + 4·51-s − 0.438·53-s − 2·55-s + 15.3·57-s + ⋯
L(s)  = 1  − 1.47·3-s + 0.447·5-s + 0.590·7-s + 1.18·9-s − 0.603·11-s + 0.155·13-s − 0.661·15-s − 0.378·17-s − 1.37·19-s − 0.872·21-s − 0.208·23-s + 0.200·25-s − 0.276·27-s − 0.394·29-s + 1.66·31-s + 0.891·33-s + 0.263·35-s − 0.0720·37-s − 0.230·39-s − 0.643·41-s + 0.530·45-s + 1.12·47-s − 0.651·49-s + 0.560·51-s − 0.0602·53-s − 0.269·55-s + 2.03·57-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1840\)    =    \(2^{4} \cdot 5 \cdot 23\)
Sign: $-1$
Analytic conductor: \(14.6924\)
Root analytic conductor: \(3.83307\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 1840,\ (\ :1/2),\ -1)\)

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)$
bad2 \( 1 \)
5 \( 1 - T \)
23 \( 1 + T \)
good3 \( 1 + 2.56T + 3T^{2} \)
7 \( 1 - 1.56T + 7T^{2} \)
11 \( 1 + 2T + 11T^{2} \)
13 \( 1 - 0.561T + 13T^{2} \)
17 \( 1 + 1.56T + 17T^{2} \)
19 \( 1 + 6T + 19T^{2} \)
29 \( 1 + 2.12T + 29T^{2} \)
31 \( 1 - 9.24T + 31T^{2} \)
37 \( 1 + 0.438T + 37T^{2} \)
41 \( 1 + 4.12T + 41T^{2} \)
43 \( 1 + 43T^{2} \)
47 \( 1 - 7.68T + 47T^{2} \)
53 \( 1 + 0.438T + 53T^{2} \)
59 \( 1 + 8.68T + 59T^{2} \)
61 \( 1 - 1.12T + 61T^{2} \)
67 \( 1 - 4.43T + 67T^{2} \)
71 \( 1 + 1.87T + 71T^{2} \)
73 \( 1 + 8.56T + 73T^{2} \)
79 \( 1 + 13.1T + 79T^{2} \)
83 \( 1 + 14.9T + 83T^{2} \)
89 \( 1 + 2.24T + 89T^{2} \)
97 \( 1 + 4.87T + 97T^{2} \)
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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

−8.793849388000070594543696754177, −8.093801949440085159982244378357, −7.02656772355351363048196477379, −6.29133643802436696104142495865, −5.69588740487162721821107475148, −4.85738872382545566253811259373, −4.24864254885099928679391452767, −2.62532269527398296788564353162, −1.44146126821444297940418773491, 0, 1.44146126821444297940418773491, 2.62532269527398296788564353162, 4.24864254885099928679391452767, 4.85738872382545566253811259373, 5.69588740487162721821107475148, 6.29133643802436696104142495865, 7.02656772355351363048196477379, 8.093801949440085159982244378357, 8.793849388000070594543696754177

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