Properties

Label 2-1840-92.91-c1-0-27
Degree $2$
Conductor $1840$
Sign $0.813 - 0.581i$
Analytic cond. $14.6924$
Root an. cond. $3.83307$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2.07i·3-s i·5-s + 3.88·7-s − 1.31·9-s − 4.84·11-s + 5.75·13-s + 2.07·15-s − 7.10i·17-s − 0.694·19-s + 8.07i·21-s + (2.78 + 3.90i)23-s − 25-s + 3.49i·27-s + 9.42·29-s − 5.96i·31-s + ⋯
L(s)  = 1  + 1.19i·3-s − 0.447i·5-s + 1.46·7-s − 0.438·9-s − 1.46·11-s + 1.59·13-s + 0.536·15-s − 1.72i·17-s − 0.159·19-s + 1.76i·21-s + (0.581 + 0.813i)23-s − 0.200·25-s + 0.673i·27-s + 1.75·29-s − 1.07i·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.813 - 0.581i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.813 - 0.581i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1840\)    =    \(2^{4} \cdot 5 \cdot 23\)
Sign: $0.813 - 0.581i$
Analytic conductor: \(14.6924\)
Root analytic conductor: \(3.83307\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1840} (1471, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1840,\ (\ :1/2),\ 0.813 - 0.581i)\)

Particular Values

\(L(1)\) \(\approx\) \(2.153706977\)
\(L(\frac12)\) \(\approx\) \(2.153706977\)
\(L(\frac{3}{2})\) 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 \( 1 + iT \)
23 \( 1 + (-2.78 - 3.90i)T \)
good3 \( 1 - 2.07iT - 3T^{2} \)
7 \( 1 - 3.88T + 7T^{2} \)
11 \( 1 + 4.84T + 11T^{2} \)
13 \( 1 - 5.75T + 13T^{2} \)
17 \( 1 + 7.10iT - 17T^{2} \)
19 \( 1 + 0.694T + 19T^{2} \)
29 \( 1 - 9.42T + 29T^{2} \)
31 \( 1 + 5.96iT - 31T^{2} \)
37 \( 1 + 1.66iT - 37T^{2} \)
41 \( 1 + 8.72T + 41T^{2} \)
43 \( 1 - 8.49T + 43T^{2} \)
47 \( 1 + 7.62iT - 47T^{2} \)
53 \( 1 + 4.40iT - 53T^{2} \)
59 \( 1 - 10.6iT - 59T^{2} \)
61 \( 1 - 3.44iT - 61T^{2} \)
67 \( 1 - 2.49T + 67T^{2} \)
71 \( 1 - 3.73iT - 71T^{2} \)
73 \( 1 - 4.45T + 73T^{2} \)
79 \( 1 + 0.694T + 79T^{2} \)
83 \( 1 - 7.34T + 83T^{2} \)
89 \( 1 + 9.40iT - 89T^{2} \)
97 \( 1 - 8.70iT - 97T^{2} \)
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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

−9.277772687261669366960225435527, −8.589576841711827374898974663584, −7.993371028621339680418190820464, −7.13291163915227025925954132198, −5.69371761795552632690563350986, −5.05859942283008057546111279407, −4.61476716992278329233620075578, −3.62242773141936689503769759980, −2.47902109303891684354918753785, −1.03147320353219056106905923843, 1.14423162272000459806931538419, 1.91430126096061965644675236692, 2.97461053682927175628760010415, 4.27427290064454832157540534082, 5.20464332086448370285878549216, 6.21111573422536789640967973093, 6.72613043120725601069840827550, 7.86144801414986865178884741036, 8.182899303398184866236443113038, 8.651699694782136211503058555120

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