Properties

Label 2-2e7-8.5-c5-0-0
Degree $2$
Conductor $128$
Sign $-1$
Analytic cond. $20.5291$
Root an. cond. $4.53090$
Motivic weight $5$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 15.2i·3-s + 43.0i·5-s − 22.6·7-s + 10.9·9-s + 258. i·11-s + 990. i·13-s − 656.·15-s − 218·17-s − 1.99e3i·19-s − 344. i·21-s − 3.41e3·23-s + 1.26e3·25-s + 3.86e3i·27-s − 4.86e3i·29-s − 8.68e3·31-s + ⋯
L(s)  = 1  + 0.977i·3-s + 0.770i·5-s − 0.174·7-s + 0.0452·9-s + 0.645i·11-s + 1.62i·13-s − 0.753·15-s − 0.182·17-s − 1.26i·19-s − 0.170i·21-s − 1.34·23-s + 0.406·25-s + 1.02i·27-s − 1.07i·29-s − 1.62·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 128 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \overline{\Lambda}(6-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 128 ^{s/2} \, \Gamma_{\C}(s+5/2) \, L(s)\cr =\mathstrut & -\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(128\)    =    \(2^{7}\)
Sign: $-1$
Analytic conductor: \(20.5291\)
Root analytic conductor: \(4.53090\)
Motivic weight: \(5\)
Rational: no
Arithmetic: yes
Character: $\chi_{128} (65, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 128,\ (\ :5/2),\ -1)\)

Particular Values

\(L(3)\) \(\approx\) \(1.235695224\)
\(L(\frac12)\) \(\approx\) \(1.235695224\)
\(L(\frac{7}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
good3 \( 1 - 15.2iT - 243T^{2} \)
5 \( 1 - 43.0iT - 3.12e3T^{2} \)
7 \( 1 + 22.6T + 1.68e4T^{2} \)
11 \( 1 - 258. iT - 1.61e5T^{2} \)
13 \( 1 - 990. iT - 3.71e5T^{2} \)
17 \( 1 + 218T + 1.41e6T^{2} \)
19 \( 1 + 1.99e3iT - 2.47e6T^{2} \)
23 \( 1 + 3.41e3T + 6.43e6T^{2} \)
29 \( 1 + 4.86e3iT - 2.05e7T^{2} \)
31 \( 1 + 8.68e3T + 2.86e7T^{2} \)
37 \( 1 + 3.23e3iT - 6.93e7T^{2} \)
41 \( 1 - 8.41e3T + 1.15e8T^{2} \)
43 \( 1 - 685. iT - 1.47e8T^{2} \)
47 \( 1 + 1.81e4T + 2.29e8T^{2} \)
53 \( 1 - 2.65e4iT - 4.18e8T^{2} \)
59 \( 1 + 3.37e4iT - 7.14e8T^{2} \)
61 \( 1 - 2.73e4iT - 8.44e8T^{2} \)
67 \( 1 - 6.67e4iT - 1.35e9T^{2} \)
71 \( 1 - 2.16e4T + 1.80e9T^{2} \)
73 \( 1 - 4.30e4T + 2.07e9T^{2} \)
79 \( 1 - 6.47e4T + 3.07e9T^{2} \)
83 \( 1 + 7.06e4iT - 3.93e9T^{2} \)
89 \( 1 - 9.38e4T + 5.58e9T^{2} \)
97 \( 1 + 8.17e4T + 8.58e9T^{2} \)
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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

−12.95568532810522549933630562002, −11.62090847913113263804253439143, −10.81741760450958977197232183229, −9.754587050449619558649528923755, −9.113571161627410402262884913747, −7.37040938110388136311826466785, −6.43288505140980835102427535840, −4.73560640896430146023574519629, −3.81641555023300577896690658918, −2.16935530469218808983923464743, 0.43313630730099954934755159652, 1.67916974674188387049974782690, 3.49379594111043727230773498518, 5.26800134364843032966843893458, 6.32231315479664655308840849008, 7.74121945946907517993164589379, 8.370701166970897100980089055589, 9.787970093015442501428400681667, 10.92193573230787133953391966566, 12.44341441994242617458260362906

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