Properties

Label 2-320-5.2-c2-0-9
Degree $2$
Conductor $320$
Sign $0.850 - 0.525i$
Analytic cond. $8.71936$
Root an. cond. $2.95285$
Motivic weight $2$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (2 − 2i)3-s + 5i·5-s + (2 + 2i)7-s + i·9-s + 8·11-s + (−3 + 3i)13-s + (10 + 10i)15-s + (7 + 7i)17-s + 20i·19-s + 8·21-s + (−2 + 2i)23-s − 25·25-s + (20 + 20i)27-s − 40i·29-s + 52·31-s + ⋯
L(s)  = 1  + (0.666 − 0.666i)3-s + i·5-s + (0.285 + 0.285i)7-s + 0.111i·9-s + 0.727·11-s + (−0.230 + 0.230i)13-s + (0.666 + 0.666i)15-s + (0.411 + 0.411i)17-s + 1.05i·19-s + 0.380·21-s + (−0.0869 + 0.0869i)23-s − 25-s + (0.740 + 0.740i)27-s − 1.37i·29-s + 1.67·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 320 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.850 - 0.525i)\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 320 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & (0.850 - 0.525i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(320\)    =    \(2^{6} \cdot 5\)
Sign: $0.850 - 0.525i$
Analytic conductor: \(8.71936\)
Root analytic conductor: \(2.95285\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{320} (257, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 320,\ (\ :1),\ 0.850 - 0.525i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(2.04539 + 0.581055i\)
\(L(\frac12)\) \(\approx\) \(2.04539 + 0.581055i\)
\(L(2)\) 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 \( 1 - 5iT \)
good3 \( 1 + (-2 + 2i)T - 9iT^{2} \)
7 \( 1 + (-2 - 2i)T + 49iT^{2} \)
11 \( 1 - 8T + 121T^{2} \)
13 \( 1 + (3 - 3i)T - 169iT^{2} \)
17 \( 1 + (-7 - 7i)T + 289iT^{2} \)
19 \( 1 - 20iT - 361T^{2} \)
23 \( 1 + (2 - 2i)T - 529iT^{2} \)
29 \( 1 + 40iT - 841T^{2} \)
31 \( 1 - 52T + 961T^{2} \)
37 \( 1 + (-3 - 3i)T + 1.36e3iT^{2} \)
41 \( 1 + 8T + 1.68e3T^{2} \)
43 \( 1 + (-42 + 42i)T - 1.84e3iT^{2} \)
47 \( 1 + (18 + 18i)T + 2.20e3iT^{2} \)
53 \( 1 + (53 - 53i)T - 2.80e3iT^{2} \)
59 \( 1 - 20iT - 3.48e3T^{2} \)
61 \( 1 - 48T + 3.72e3T^{2} \)
67 \( 1 + (62 + 62i)T + 4.48e3iT^{2} \)
71 \( 1 + 28T + 5.04e3T^{2} \)
73 \( 1 + (47 - 47i)T - 5.32e3iT^{2} \)
79 \( 1 - 6.24e3T^{2} \)
83 \( 1 + (18 - 18i)T - 6.88e3iT^{2} \)
89 \( 1 - 80iT - 7.92e3T^{2} \)
97 \( 1 + (63 + 63i)T + 9.40e3iT^{2} \)
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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

−11.64607882151072088403009525243, −10.51892705650010151059998770332, −9.680039127101922974825941665738, −8.398460943915667755131748714658, −7.74916034382571295725625967703, −6.76985651513538834443181265468, −5.81786934139138164078574115614, −4.12905377665079554164938187557, −2.83173947653165560421207226790, −1.73673106186176142693196532384, 1.05555449912427093422493478929, 2.97789672215722418063483479817, 4.24787538765960950245126687354, 4.98333481203219928433741495413, 6.44606412800501350919894234585, 7.75152450861019584063470430515, 8.739644392277153183017969501821, 9.328045504588263865534143261686, 10.14479492757461918283613385651, 11.39327676336287180249698022478

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