Properties

Label 2-1620-5.4-c1-0-13
Degree $2$
Conductor $1620$
Sign $0.987 + 0.156i$
Analytic cond. $12.9357$
Root an. cond. $3.59663$
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  + (2.20 + 0.349i)5-s − 2.26i·7-s + 2.54·11-s + 5.02i·13-s − 5.72i·17-s + 1.86·19-s + 5.39i·23-s + (4.75 + 1.54i)25-s − 3·29-s + 9.38·31-s + (0.791 − 5.00i)35-s − 2.59i·37-s − 3.96·41-s − 10.2i·43-s − 1.07i·47-s + ⋯
L(s)  = 1  + (0.987 + 0.156i)5-s − 0.856i·7-s + 0.768·11-s + 1.39i·13-s − 1.38i·17-s + 0.429·19-s + 1.12i·23-s + (0.951 + 0.308i)25-s − 0.557·29-s + 1.68·31-s + (0.133 − 0.845i)35-s − 0.426i·37-s − 0.619·41-s − 1.55i·43-s − 0.156i·47-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1620 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.987 + 0.156i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1620 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.987 + 0.156i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1620\)    =    \(2^{2} \cdot 3^{4} \cdot 5\)
Sign: $0.987 + 0.156i$
Analytic conductor: \(12.9357\)
Root analytic conductor: \(3.59663\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1620} (649, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1620,\ (\ :1/2),\ 0.987 + 0.156i)\)

Particular Values

\(L(1)\) \(\approx\) \(2.219042521\)
\(L(\frac12)\) \(\approx\) \(2.219042521\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 \)
5 \( 1 + (-2.20 - 0.349i)T \)
good7 \( 1 + 2.26iT - 7T^{2} \)
11 \( 1 - 2.54T + 11T^{2} \)
13 \( 1 - 5.02iT - 13T^{2} \)
17 \( 1 + 5.72iT - 17T^{2} \)
19 \( 1 - 1.86T + 19T^{2} \)
23 \( 1 - 5.39iT - 23T^{2} \)
29 \( 1 + 3T + 29T^{2} \)
31 \( 1 - 9.38T + 31T^{2} \)
37 \( 1 + 2.59iT - 37T^{2} \)
41 \( 1 + 3.96T + 41T^{2} \)
43 \( 1 + 10.2iT - 43T^{2} \)
47 \( 1 + 1.07iT - 47T^{2} \)
53 \( 1 - 10.7iT - 53T^{2} \)
59 \( 1 + 1.58T + 59T^{2} \)
61 \( 1 - 0.869T + 61T^{2} \)
67 \( 1 + 4.85iT - 67T^{2} \)
71 \( 1 - 1.86T + 71T^{2} \)
73 \( 1 + 3.87iT - 73T^{2} \)
79 \( 1 - 13.2T + 79T^{2} \)
83 \( 1 + 14.7iT - 83T^{2} \)
89 \( 1 + 13.4T + 89T^{2} \)
97 \( 1 - 17.6iT - 97T^{2} \)
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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

−9.375355643609977866577760641264, −8.914009854438195918975812010124, −7.51616558582527077345490969628, −6.96827967815393970749953463050, −6.27270361259455513241623870799, −5.24758371526657283845236466840, −4.38034205173902744917972437818, −3.39909900527619525514404310634, −2.16296746495862441983122793442, −1.09967176623128536885442749654, 1.16383678530840240169011739367, 2.33387540393780440987518710506, 3.24864072499100425779419666509, 4.53707550191833360573864995289, 5.48826094362724058879005790242, 6.09791032877691850128977450275, 6.74446602998413082048898916230, 8.234706535824114450289587143902, 8.440219313284366121840303647804, 9.522354822346239454330123309506

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