Properties

Label 2-1280-8.5-c1-0-5
Degree $2$
Conductor $1280$
Sign $0.707 - 0.707i$
Analytic cond. $10.2208$
Root an. cond. $3.19700$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

Related objects

Downloads

Learn more

Normalization:  

Dirichlet series

L(s)  = 1  − 2i·3-s i·5-s − 2·7-s − 9-s + 4i·11-s + 6i·13-s − 2·15-s + 2·17-s + 8i·19-s + 4i·21-s − 6·23-s − 25-s − 4i·27-s + 2i·29-s − 4·31-s + ⋯
L(s)  = 1  − 1.15i·3-s − 0.447i·5-s − 0.755·7-s − 0.333·9-s + 1.20i·11-s + 1.66i·13-s − 0.516·15-s + 0.485·17-s + 1.83i·19-s + 0.872i·21-s − 1.25·23-s − 0.200·25-s − 0.769i·27-s + 0.371i·29-s − 0.718·31-s + ⋯

Functional equation

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

Invariants

Degree: \(2\)
Conductor: \(1280\)    =    \(2^{8} \cdot 5\)
Sign: $0.707 - 0.707i$
Analytic conductor: \(10.2208\)
Root analytic conductor: \(3.19700\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1280} (641, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1280,\ (\ :1/2),\ 0.707 - 0.707i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.064744581\)
\(L(\frac12)\) \(\approx\) \(1.064744581\)
\(L(\frac{3}{2})\) 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 \( 1 + iT \)
good3 \( 1 + 2iT - 3T^{2} \)
7 \( 1 + 2T + 7T^{2} \)
11 \( 1 - 4iT - 11T^{2} \)
13 \( 1 - 6iT - 13T^{2} \)
17 \( 1 - 2T + 17T^{2} \)
19 \( 1 - 8iT - 19T^{2} \)
23 \( 1 + 6T + 23T^{2} \)
29 \( 1 - 2iT - 29T^{2} \)
31 \( 1 + 4T + 31T^{2} \)
37 \( 1 - 2iT - 37T^{2} \)
41 \( 1 - 10T + 41T^{2} \)
43 \( 1 - 2iT - 43T^{2} \)
47 \( 1 - 2T + 47T^{2} \)
53 \( 1 - 2iT - 53T^{2} \)
59 \( 1 - 59T^{2} \)
61 \( 1 + 2iT - 61T^{2} \)
67 \( 1 + 6iT - 67T^{2} \)
71 \( 1 + 12T + 71T^{2} \)
73 \( 1 + 10T + 73T^{2} \)
79 \( 1 - 8T + 79T^{2} \)
83 \( 1 + 10iT - 83T^{2} \)
89 \( 1 - 6T + 89T^{2} \)
97 \( 1 - 10T + 97T^{2} \)
show more
show less
   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{2} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−9.700221147795872853924297097288, −9.022025050003019166264077043445, −7.83836494598430177060851685915, −7.42199661117713160895476820505, −6.46145017983366403909347136228, −5.94549874758696830472340772572, −4.55162433626430343127034466820, −3.74526964187479998232313419919, −2.12190190644461181470731397590, −1.48696706425844324269749263446, 0.44771859190856424942134289020, 2.77751170045628542749338882694, 3.35973553900055267476115977278, 4.26940098367687164259175307015, 5.46976262182893041594889029283, 5.97029938653171017300906150906, 7.12827186216962209056827694429, 8.028615783301155763290298911097, 8.981288937050764817614876360543, 9.649125828234924965367259372500

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