Properties

Label 2-40e2-80.69-c1-0-22
Degree $2$
Conductor $1600$
Sign $0.997 - 0.0708i$
Analytic cond. $12.7760$
Root an. cond. $3.57436$
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  + (1 + i)3-s + 2·7-s i·9-s + (−1 − i)11-s + (−1 − i)13-s + 2i·17-s + (3 − 3i)19-s + (2 + 2i)21-s + 6·23-s + (4 − 4i)27-s + (−3 + 3i)29-s + 8·31-s − 2i·33-s + (3 − 3i)37-s − 2i·39-s + ⋯
L(s)  = 1  + (0.577 + 0.577i)3-s + 0.755·7-s − 0.333i·9-s + (−0.301 − 0.301i)11-s + (−0.277 − 0.277i)13-s + 0.485i·17-s + (0.688 − 0.688i)19-s + (0.436 + 0.436i)21-s + 1.25·23-s + (0.769 − 0.769i)27-s + (−0.557 + 0.557i)29-s + 1.43·31-s − 0.348i·33-s + (0.493 − 0.493i)37-s − 0.320i·39-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1600 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.997 - 0.0708i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1600 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.997 - 0.0708i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1600\)    =    \(2^{6} \cdot 5^{2}\)
Sign: $0.997 - 0.0708i$
Analytic conductor: \(12.7760\)
Root analytic conductor: \(3.57436\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1600} (49, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1600,\ (\ :1/2),\ 0.997 - 0.0708i)\)

Particular Values

\(L(1)\) \(\approx\) \(2.316973432\)
\(L(\frac12)\) \(\approx\) \(2.316973432\)
\(L(\frac{3}{2})\) 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 \( 1 \)
good3 \( 1 + (-1 - i)T + 3iT^{2} \)
7 \( 1 - 2T + 7T^{2} \)
11 \( 1 + (1 + i)T + 11iT^{2} \)
13 \( 1 + (1 + i)T + 13iT^{2} \)
17 \( 1 - 2iT - 17T^{2} \)
19 \( 1 + (-3 + 3i)T - 19iT^{2} \)
23 \( 1 - 6T + 23T^{2} \)
29 \( 1 + (3 - 3i)T - 29iT^{2} \)
31 \( 1 - 8T + 31T^{2} \)
37 \( 1 + (-3 + 3i)T - 37iT^{2} \)
41 \( 1 - 41T^{2} \)
43 \( 1 + (-5 + 5i)T - 43iT^{2} \)
47 \( 1 - 8iT - 47T^{2} \)
53 \( 1 + (-5 + 5i)T - 53iT^{2} \)
59 \( 1 + (3 + 3i)T + 59iT^{2} \)
61 \( 1 + (9 - 9i)T - 61iT^{2} \)
67 \( 1 + (5 + 5i)T + 67iT^{2} \)
71 \( 1 - 10iT - 71T^{2} \)
73 \( 1 - 4T + 73T^{2} \)
79 \( 1 + 79T^{2} \)
83 \( 1 + (-1 - i)T + 83iT^{2} \)
89 \( 1 + 4iT - 89T^{2} \)
97 \( 1 - 2iT - 97T^{2} \)
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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

−9.271574097510806860633261607808, −8.761414318824999894348447805031, −7.934266578093900937375458335451, −7.17609075176525688818437269853, −6.11345292999740449245689439992, −5.11755661289014142830855737583, −4.41800258016212945509248578004, −3.35078832512169742578649991236, −2.57684714268305765122376662778, −1.02201724135173927526339978237, 1.23374554061319535138905960430, 2.27531674827328281987956498482, 3.13812131818758889137264684957, 4.55024001762475265967683469123, 5.11871327533801936140181988879, 6.25569424794157170047928943777, 7.34469432582924521459797946217, 7.70344864331412648208238040484, 8.460311740436829434519280396047, 9.297236129656082950219034357114

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