Properties

Label 2-3840-5.4-c1-0-4
Degree $2$
Conductor $3840$
Sign $-0.774 - 0.632i$
Analytic cond. $30.6625$
Root an. cond. $5.53737$
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  i·3-s + (−1.41 + 1.73i)5-s − 9-s − 3.46i·13-s + (1.73 + 1.41i)15-s + 4.89i·17-s + 4.89·19-s + 2.82i·23-s + (−0.999 − 4.89i)25-s + i·27-s − 2.82·29-s − 6.92·31-s − 3.46i·37-s − 3.46·39-s − 6·41-s + ⋯
L(s)  = 1  − 0.577i·3-s + (−0.632 + 0.774i)5-s − 0.333·9-s − 0.960i·13-s + (0.447 + 0.365i)15-s + 1.18i·17-s + 1.12·19-s + 0.589i·23-s + (−0.199 − 0.979i)25-s + 0.192i·27-s − 0.525·29-s − 1.24·31-s − 0.569i·37-s − 0.554·39-s − 0.937·41-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 3840 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.774 - 0.632i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 3840 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.774 - 0.632i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(3840\)    =    \(2^{8} \cdot 3 \cdot 5\)
Sign: $-0.774 - 0.632i$
Analytic conductor: \(30.6625\)
Root analytic conductor: \(5.53737\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{3840} (769, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 3840,\ (\ :1/2),\ -0.774 - 0.632i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.4173479535\)
\(L(\frac12)\) \(\approx\) \(0.4173479535\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 + iT \)
5 \( 1 + (1.41 - 1.73i)T \)
good7 \( 1 - 7T^{2} \)
11 \( 1 + 11T^{2} \)
13 \( 1 + 3.46iT - 13T^{2} \)
17 \( 1 - 4.89iT - 17T^{2} \)
19 \( 1 - 4.89T + 19T^{2} \)
23 \( 1 - 2.82iT - 23T^{2} \)
29 \( 1 + 2.82T + 29T^{2} \)
31 \( 1 + 6.92T + 31T^{2} \)
37 \( 1 + 3.46iT - 37T^{2} \)
41 \( 1 + 6T + 41T^{2} \)
43 \( 1 - 4iT - 43T^{2} \)
47 \( 1 - 2.82iT - 47T^{2} \)
53 \( 1 + 3.46iT - 53T^{2} \)
59 \( 1 - 9.79T + 59T^{2} \)
61 \( 1 + 61T^{2} \)
67 \( 1 + 4iT - 67T^{2} \)
71 \( 1 + 13.8T + 71T^{2} \)
73 \( 1 + 9.79iT - 73T^{2} \)
79 \( 1 + 6.92T + 79T^{2} \)
83 \( 1 - 12iT - 83T^{2} \)
89 \( 1 + 6T + 89T^{2} \)
97 \( 1 - 9.79iT - 97T^{2} \)
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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

−8.583835028147087586679542589741, −7.79793226866191452926187717420, −7.47187390279406393136364041194, −6.67938766064439346220324501841, −5.83631454829458159932446498594, −5.24085915489961902226617255967, −3.89033139289274903189320406055, −3.38728611577011254683751093070, −2.43851389725414668147135616310, −1.29005928451778764496440675244, 0.12778054620283715868307987430, 1.44500340757451662509829054457, 2.74316500166825353903046216529, 3.71730314021554491625331751356, 4.35898773672299532696019690962, 5.14708615682268747324669734483, 5.67134374819641275497293972036, 7.01407659171277437033444112452, 7.33833808803672211632950029034, 8.408998057315711526715199354977

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