Properties

Label 2-80-4.3-c2-0-0
Degree $2$
Conductor $80$
Sign $-0.500 - 0.866i$
Analytic cond. $2.17984$
Root an. cond. $1.47642$
Motivic weight $2$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 5.60i·3-s − 2.23·5-s − 1.32i·7-s − 22.4·9-s + 11.2i·11-s + 17.4·13-s − 12.5i·15-s + 18·17-s + 5.29i·19-s + 7.41·21-s + 15.1i·23-s + 5.00·25-s − 75.1i·27-s + 8.83·29-s − 42.1i·31-s + ⋯
L(s)  = 1  + 1.86i·3-s − 0.447·5-s − 0.189i·7-s − 2.49·9-s + 1.01i·11-s + 1.33·13-s − 0.835i·15-s + 1.05·17-s + 0.278i·19-s + 0.353·21-s + 0.659i·23-s + 0.200·25-s − 2.78i·27-s + 0.304·29-s − 1.36i·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 80 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.500 - 0.866i)\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 80 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & (-0.500 - 0.866i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(80\)    =    \(2^{4} \cdot 5\)
Sign: $-0.500 - 0.866i$
Analytic conductor: \(2.17984\)
Root analytic conductor: \(1.47642\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{80} (31, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 80,\ (\ :1),\ -0.500 - 0.866i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(0.565442 + 0.979375i\)
\(L(\frac12)\) \(\approx\) \(0.565442 + 0.979375i\)
\(L(2)\) 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 \( 1 + 2.23T \)
good3 \( 1 - 5.60iT - 9T^{2} \)
7 \( 1 + 1.32iT - 49T^{2} \)
11 \( 1 - 11.2iT - 121T^{2} \)
13 \( 1 - 17.4T + 169T^{2} \)
17 \( 1 - 18T + 289T^{2} \)
19 \( 1 - 5.29iT - 361T^{2} \)
23 \( 1 - 15.1iT - 529T^{2} \)
29 \( 1 - 8.83T + 841T^{2} \)
31 \( 1 + 42.1iT - 961T^{2} \)
37 \( 1 - 33.4T + 1.36e3T^{2} \)
41 \( 1 + 28.2T + 1.68e3T^{2} \)
43 \( 1 + 25.3iT - 1.84e3T^{2} \)
47 \( 1 - 10.5iT - 2.20e3T^{2} \)
53 \( 1 + 28.2T + 2.80e3T^{2} \)
59 \( 1 - 44.8iT - 3.48e3T^{2} \)
61 \( 1 + 77.4T + 3.72e3T^{2} \)
67 \( 1 + 36.5iT - 4.48e3T^{2} \)
71 \( 1 + 97.6iT - 5.04e3T^{2} \)
73 \( 1 - 15.6T + 5.32e3T^{2} \)
79 \( 1 + 112. iT - 6.24e3T^{2} \)
83 \( 1 - 92.0iT - 6.88e3T^{2} \)
89 \( 1 + 59.6T + 7.92e3T^{2} \)
97 \( 1 - 108.T + 9.40e3T^{2} \)
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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

−14.89989074908984062418778409037, −13.70757727970655256232665744298, −12.01416148725693276241280105773, −10.98878378402053937591684864785, −10.08604724120706180698544387737, −9.172700467010364855643923581895, −7.889510102332390559813042332016, −5.82781281753287519400421558846, −4.45975206250091000394148278049, −3.47249429946372439329020688835, 1.06904770890671644453700554979, 3.11445754944512377494061572657, 5.76249425566487254658174167997, 6.74053706327825409381364169442, 8.033853818234939696989364129111, 8.680187085025324165906565093447, 10.91787020413572878136658579023, 11.82116438070507778379948410018, 12.72610495171032290374555163714, 13.64826041661203036235922948515

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