Properties

Label 2-320-80.69-c1-0-2
Degree $2$
Conductor $320$
Sign $0.997 - 0.0708i$
Analytic cond. $2.55521$
Root an. cond. $1.59850$
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  + (−1 − i)3-s + (1 + 2i)5-s i·9-s + (3 + 3i)11-s + (3 + 3i)13-s + (1 − 3i)15-s − 4i·17-s + (1 − i)19-s + 8·23-s + (−3 + 4i)25-s + (−4 + 4i)27-s + (3 − 3i)29-s − 6i·33-s + (3 − 3i)37-s − 6i·39-s + ⋯
L(s)  = 1  + (−0.577 − 0.577i)3-s + (0.447 + 0.894i)5-s − 0.333i·9-s + (0.904 + 0.904i)11-s + (0.832 + 0.832i)13-s + (0.258 − 0.774i)15-s − 0.970i·17-s + (0.229 − 0.229i)19-s + 1.66·23-s + (−0.600 + 0.800i)25-s + (−0.769 + 0.769i)27-s + (0.557 − 0.557i)29-s − 1.04i·33-s + (0.493 − 0.493i)37-s − 0.960i·39-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 320 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.997 - 0.0708i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 320 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.997 - 0.0708i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(320\)    =    \(2^{6} \cdot 5\)
Sign: $0.997 - 0.0708i$
Analytic conductor: \(2.55521\)
Root analytic conductor: \(1.59850\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{320} (49, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 320,\ (\ :1/2),\ 0.997 - 0.0708i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.25671 + 0.0445996i\)
\(L(\frac12)\) \(\approx\) \(1.25671 + 0.0445996i\)
\(L(\frac{3}{2})\) 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 \( 1 + (-1 - 2i)T \)
good3 \( 1 + (1 + i)T + 3iT^{2} \)
7 \( 1 + 7T^{2} \)
11 \( 1 + (-3 - 3i)T + 11iT^{2} \)
13 \( 1 + (-3 - 3i)T + 13iT^{2} \)
17 \( 1 + 4iT - 17T^{2} \)
19 \( 1 + (-1 + i)T - 19iT^{2} \)
23 \( 1 - 8T + 23T^{2} \)
29 \( 1 + (-3 + 3i)T - 29iT^{2} \)
31 \( 1 + 31T^{2} \)
37 \( 1 + (-3 + 3i)T - 37iT^{2} \)
41 \( 1 - 41T^{2} \)
43 \( 1 + (3 - 3i)T - 43iT^{2} \)
47 \( 1 - 2iT - 47T^{2} \)
53 \( 1 + (9 - 9i)T - 53iT^{2} \)
59 \( 1 + (9 + 9i)T + 59iT^{2} \)
61 \( 1 + (5 - 5i)T - 61iT^{2} \)
67 \( 1 + (-3 - 3i)T + 67iT^{2} \)
71 \( 1 + 6iT - 71T^{2} \)
73 \( 1 - 6T + 73T^{2} \)
79 \( 1 + 8T + 79T^{2} \)
83 \( 1 + (9 + 9i)T + 83iT^{2} \)
89 \( 1 + 12iT - 89T^{2} \)
97 \( 1 - 12iT - 97T^{2} \)
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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

−11.50215152050005401709128680070, −11.05951390877709589172759414747, −9.643367671978985906779767123385, −9.127905672266235030647007906370, −7.39783820172731734990049752671, −6.72399724381487767526207173912, −6.10328301280886839159462132034, −4.61808802857359198520093291147, −3.12641082032681766964758731637, −1.48006086817518078236915258391, 1.25589686520630742536294150701, 3.42622832915344619222425503842, 4.71413021304624055773597026749, 5.60110123390204556726549497183, 6.41768309490026811865075907519, 8.133244739273812371385877596602, 8.789685722396959186889625466541, 9.835349881938172990073592918218, 10.78648730050423430781798730642, 11.40132360649148055994037119652

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