Properties

Label 2-1280-8.5-c3-0-82
Degree $2$
Conductor $1280$
Sign $-0.707 + 0.707i$
Analytic cond. $75.5224$
Root an. cond. $8.69036$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 4i·3-s + 5i·5-s + 16·7-s + 11·9-s − 60i·11-s − 86i·13-s + 20·15-s + 18·17-s − 44i·19-s − 64i·21-s − 48·23-s − 25·25-s − 152i·27-s + 186i·29-s + 176·31-s + ⋯
L(s)  = 1  − 0.769i·3-s + 0.447i·5-s + 0.863·7-s + 0.407·9-s − 1.64i·11-s − 1.83i·13-s + 0.344·15-s + 0.256·17-s − 0.531i·19-s − 0.665i·21-s − 0.435·23-s − 0.200·25-s − 1.08i·27-s + 1.19i·29-s + 1.01·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1280 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.707 + 0.707i)\, \overline{\Lambda}(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1280 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & (-0.707 + 0.707i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1280\)    =    \(2^{8} \cdot 5\)
Sign: $-0.707 + 0.707i$
Analytic conductor: \(75.5224\)
Root analytic conductor: \(8.69036\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: $\chi_{1280} (641, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1280,\ (\ :3/2),\ -0.707 + 0.707i)\)

Particular Values

\(L(2)\) \(\approx\) \(2.211806397\)
\(L(\frac12)\) \(\approx\) \(2.211806397\)
\(L(\frac{5}{2})\) 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 \( 1 - 5iT \)
good3 \( 1 + 4iT - 27T^{2} \)
7 \( 1 - 16T + 343T^{2} \)
11 \( 1 + 60iT - 1.33e3T^{2} \)
13 \( 1 + 86iT - 2.19e3T^{2} \)
17 \( 1 - 18T + 4.91e3T^{2} \)
19 \( 1 + 44iT - 6.85e3T^{2} \)
23 \( 1 + 48T + 1.21e4T^{2} \)
29 \( 1 - 186iT - 2.43e4T^{2} \)
31 \( 1 - 176T + 2.97e4T^{2} \)
37 \( 1 - 254iT - 5.06e4T^{2} \)
41 \( 1 + 186T + 6.89e4T^{2} \)
43 \( 1 + 100iT - 7.95e4T^{2} \)
47 \( 1 - 168T + 1.03e5T^{2} \)
53 \( 1 + 498iT - 1.48e5T^{2} \)
59 \( 1 + 252iT - 2.05e5T^{2} \)
61 \( 1 - 58iT - 2.26e5T^{2} \)
67 \( 1 - 1.03e3iT - 3.00e5T^{2} \)
71 \( 1 + 168T + 3.57e5T^{2} \)
73 \( 1 + 506T + 3.89e5T^{2} \)
79 \( 1 - 272T + 4.93e5T^{2} \)
83 \( 1 + 948iT - 5.71e5T^{2} \)
89 \( 1 - 1.01e3T + 7.04e5T^{2} \)
97 \( 1 + 766T + 9.12e5T^{2} \)
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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

−8.576778381850420114834659477726, −8.189210238505971206402470548770, −7.45514003884469449929755936706, −6.54226808307365916686948466102, −5.72038944332784288825910446124, −4.90343600576618686352199438668, −3.49761377049754483073197938612, −2.73265252885552569789024311973, −1.37191594816374592094971124817, −0.52959907677084989457371569709, 1.46604723324269914626221672084, 2.15655008097861574747557209962, 4.01580766187010385167119342148, 4.41153223044335345375897833048, 5.02882927787274090627974955843, 6.29321664868313514834996007443, 7.26706757995409809430561704735, 7.943905863717243792594823654605, 9.044520360984614485699064851009, 9.600699533506129862482298384315

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