Properties

Label 2-1280-8.5-c1-0-27
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 − 2i·13-s − 2·15-s − 6·17-s − 4i·19-s − 4i·21-s + 6·23-s − 25-s − 4i·27-s − 6i·29-s + 4·31-s − 2i·35-s + ⋯
L(s)  = 1  − 1.15i·3-s − 0.447i·5-s + 0.755·7-s − 0.333·9-s − 0.554i·13-s − 0.516·15-s − 1.45·17-s − 0.917i·19-s − 0.872i·21-s + 1.25·23-s − 0.200·25-s − 0.769i·27-s − 1.11i·29-s + 0.718·31-s − 0.338i·35-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

\(L(1)\) \(\approx\) \(1.608077633\)
\(L(\frac12)\) \(\approx\) \(1.608077633\)
\(L(\frac{3}{2})\) 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 \( 1 - 11T^{2} \)
13 \( 1 + 2iT - 13T^{2} \)
17 \( 1 + 6T + 17T^{2} \)
19 \( 1 + 4iT - 19T^{2} \)
23 \( 1 - 6T + 23T^{2} \)
29 \( 1 + 6iT - 29T^{2} \)
31 \( 1 - 4T + 31T^{2} \)
37 \( 1 - 2iT - 37T^{2} \)
41 \( 1 + 6T + 41T^{2} \)
43 \( 1 - 10iT - 43T^{2} \)
47 \( 1 - 6T + 47T^{2} \)
53 \( 1 + 6iT - 53T^{2} \)
59 \( 1 + 12iT - 59T^{2} \)
61 \( 1 + 2iT - 61T^{2} \)
67 \( 1 - 2iT - 67T^{2} \)
71 \( 1 + 12T + 71T^{2} \)
73 \( 1 + 2T + 73T^{2} \)
79 \( 1 + 8T + 79T^{2} \)
83 \( 1 - 6iT - 83T^{2} \)
89 \( 1 - 6T + 89T^{2} \)
97 \( 1 - 2T + 97T^{2} \)
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

−9.148085412675813891936646785210, −8.385500135164812514756384431203, −7.78517028695477112170101699191, −6.89851601602176498797041632823, −6.27477430921408277322119933101, −5.04171054891648705236366295193, −4.42029860877984215347666245476, −2.81019808355718984241074660766, −1.81280180084146899617098350177, −0.68873071227057691255821670662, 1.71448922623350348090211524349, 3.03500349830528548119990947945, 4.11355726121156523173933348244, 4.69285146601263802022539723429, 5.59836186515787395494516653704, 6.76048083043038491165210125637, 7.44710099286074170155524085338, 8.801834284339849304294155559021, 8.959129842932469534164806714545, 10.20052898539242611397909731122

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