Properties

Label 2-40e2-20.7-c1-0-23
Degree $2$
Conductor $1600$
Sign $-0.525 + 0.850i$
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 + (1 − i)7-s i·9-s − 4i·11-s + (4 − 4i)13-s + (4 + 4i)17-s − 4·19-s − 2·21-s + (5 + 5i)23-s + (−4 + 4i)27-s + 2i·29-s − 8i·31-s + (−4 + 4i)33-s − 8·39-s − 4·41-s + ⋯
L(s)  = 1  + (−0.577 − 0.577i)3-s + (0.377 − 0.377i)7-s − 0.333i·9-s − 1.20i·11-s + (1.10 − 1.10i)13-s + (0.970 + 0.970i)17-s − 0.917·19-s − 0.436·21-s + (1.04 + 1.04i)23-s + (−0.769 + 0.769i)27-s + 0.371i·29-s − 1.43i·31-s + (−0.696 + 0.696i)33-s − 1.28·39-s − 0.624·41-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1600 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.525 + 0.850i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1600 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.525 + 0.850i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1600\)    =    \(2^{6} \cdot 5^{2}\)
Sign: $-0.525 + 0.850i$
Analytic conductor: \(12.7760\)
Root analytic conductor: \(3.57436\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1600} (1407, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1600,\ (\ :1/2),\ -0.525 + 0.850i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.354679712\)
\(L(\frac12)\) \(\approx\) \(1.354679712\)
\(L(\frac{3}{2})\) 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 \( 1 + (-1 + i)T - 7iT^{2} \)
11 \( 1 + 4iT - 11T^{2} \)
13 \( 1 + (-4 + 4i)T - 13iT^{2} \)
17 \( 1 + (-4 - 4i)T + 17iT^{2} \)
19 \( 1 + 4T + 19T^{2} \)
23 \( 1 + (-5 - 5i)T + 23iT^{2} \)
29 \( 1 - 2iT - 29T^{2} \)
31 \( 1 + 8iT - 31T^{2} \)
37 \( 1 + 37iT^{2} \)
41 \( 1 + 4T + 41T^{2} \)
43 \( 1 + (7 + 7i)T + 43iT^{2} \)
47 \( 1 + (-3 + 3i)T - 47iT^{2} \)
53 \( 1 + (-4 + 4i)T - 53iT^{2} \)
59 \( 1 + 4T + 59T^{2} \)
61 \( 1 - 8T + 61T^{2} \)
67 \( 1 + (-3 + 3i)T - 67iT^{2} \)
71 \( 1 + 16iT - 71T^{2} \)
73 \( 1 + (4 - 4i)T - 73iT^{2} \)
79 \( 1 + 8T + 79T^{2} \)
83 \( 1 + (-5 - 5i)T + 83iT^{2} \)
89 \( 1 + 10iT - 89T^{2} \)
97 \( 1 + (12 + 12i)T + 97iT^{2} \)
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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

−8.933674618950114818973548524953, −8.288093545460029554950883936100, −7.58955111222279669233963023116, −6.57925370113038588392895013871, −5.85807656234190864984834218509, −5.37907733006028821695365489587, −3.82921008566749396781685750606, −3.28228076936687235527126775812, −1.52306688034955979937522293970, −0.62363932292561094271429362883, 1.48924525087183715637078100899, 2.63970096018183434443584677962, 4.04886027243127850007050633577, 4.76900576626099330319206888718, 5.35600697270186469901385472790, 6.49187949885099807548182026998, 7.11515040985469529459204446923, 8.244102082229293383318882509651, 8.892890613355382179745385989393, 9.799213305508140722053793563820

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