Properties

Label 2-320-20.7-c1-0-5
Degree $2$
Conductor $320$
Sign $0.850 + 0.525i$
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  + (2 − i)5-s − 3i·9-s + (1 − i)13-s + (3 + 3i)17-s + (3 − 4i)25-s − 4i·29-s + (7 + 7i)37-s − 8·41-s + (−3 − 6i)45-s + 7i·49-s + (−9 + 9i)53-s − 12·61-s + (1 − 3i)65-s + (−11 + 11i)73-s − 9·81-s + ⋯
L(s)  = 1  + (0.894 − 0.447i)5-s i·9-s + (0.277 − 0.277i)13-s + (0.727 + 0.727i)17-s + (0.600 − 0.800i)25-s − 0.742i·29-s + (1.15 + 1.15i)37-s − 1.24·41-s + (−0.447 − 0.894i)45-s + i·49-s + (−1.23 + 1.23i)53-s − 1.53·61-s + (0.124 − 0.372i)65-s + (−1.28 + 1.28i)73-s − 81-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 320 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.850 + 0.525i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 320 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.850 + 0.525i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(320\)    =    \(2^{6} \cdot 5\)
Sign: $0.850 + 0.525i$
Analytic conductor: \(2.55521\)
Root analytic conductor: \(1.59850\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{320} (127, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 320,\ (\ :1/2),\ 0.850 + 0.525i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.45848 - 0.414326i\)
\(L(\frac12)\) \(\approx\) \(1.45848 - 0.414326i\)
\(L(\frac{3}{2})\) 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 \( 1 + (-2 + i)T \)
good3 \( 1 + 3iT^{2} \)
7 \( 1 - 7iT^{2} \)
11 \( 1 - 11T^{2} \)
13 \( 1 + (-1 + i)T - 13iT^{2} \)
17 \( 1 + (-3 - 3i)T + 17iT^{2} \)
19 \( 1 + 19T^{2} \)
23 \( 1 + 23iT^{2} \)
29 \( 1 + 4iT - 29T^{2} \)
31 \( 1 - 31T^{2} \)
37 \( 1 + (-7 - 7i)T + 37iT^{2} \)
41 \( 1 + 8T + 41T^{2} \)
43 \( 1 + 43iT^{2} \)
47 \( 1 - 47iT^{2} \)
53 \( 1 + (9 - 9i)T - 53iT^{2} \)
59 \( 1 + 59T^{2} \)
61 \( 1 + 12T + 61T^{2} \)
67 \( 1 - 67iT^{2} \)
71 \( 1 - 71T^{2} \)
73 \( 1 + (11 - 11i)T - 73iT^{2} \)
79 \( 1 + 79T^{2} \)
83 \( 1 + 83iT^{2} \)
89 \( 1 + 16iT - 89T^{2} \)
97 \( 1 + (-13 - 13i)T + 97iT^{2} \)
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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

−11.67884295715023212621534687179, −10.42821154254018852586134744406, −9.693419260056799415960468756177, −8.859010812383679043032619910844, −7.85329864362359783038199561841, −6.40400267991988480893327881443, −5.80780206704734417757645076831, −4.46793970751731429499311987066, −3.07029287086804376795319408489, −1.32586343342437555983892467440, 1.85772778075380890368705227763, 3.15954120480596599270267330916, 4.84141601387313376758748006505, 5.75800316685793390864568868433, 6.88035734678523391819824097259, 7.83780976762986300410096230967, 9.029930109482513194692993201510, 9.938012052388440123704117322938, 10.72213307634961733674798426066, 11.55357618751306773912596348696

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