Properties

Label 2-320-8.5-c3-0-20
Degree $2$
Conductor $320$
Sign $-0.707 + 0.707i$
Analytic cond. $18.8806$
Root an. cond. $4.34518$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 7.35i·3-s − 5i·5-s + 26.7·7-s − 27.1·9-s − 16.7i·11-s − 83.5i·13-s − 36.7·15-s + 102.·17-s + 83.7i·19-s − 197. i·21-s + 73.9·23-s − 25·25-s + 1.12i·27-s + 94.3i·29-s − 126.·31-s + ⋯
L(s)  = 1  − 1.41i·3-s − 0.447i·5-s + 1.44·7-s − 1.00·9-s − 0.458i·11-s − 1.78i·13-s − 0.633·15-s + 1.46·17-s + 1.01i·19-s − 2.04i·21-s + 0.670·23-s − 0.200·25-s + 0.00804i·27-s + 0.604i·29-s − 0.732·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 320 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.707 + 0.707i)\, \overline{\Lambda}(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 320 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & (-0.707 + 0.707i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(320\)    =    \(2^{6} \cdot 5\)
Sign: $-0.707 + 0.707i$
Analytic conductor: \(18.8806\)
Root analytic conductor: \(4.34518\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: $\chi_{320} (161, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 320,\ (\ :3/2),\ -0.707 + 0.707i)\)

Particular Values

\(L(2)\) \(\approx\) \(2.144204172\)
\(L(\frac12)\) \(\approx\) \(2.144204172\)
\(L(\frac{5}{2})\) 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 \( 1 + 7.35iT - 27T^{2} \)
7 \( 1 - 26.7T + 343T^{2} \)
11 \( 1 + 16.7iT - 1.33e3T^{2} \)
13 \( 1 + 83.5iT - 2.19e3T^{2} \)
17 \( 1 - 102.T + 4.91e3T^{2} \)
19 \( 1 - 83.7iT - 6.85e3T^{2} \)
23 \( 1 - 73.9T + 1.21e4T^{2} \)
29 \( 1 - 94.3iT - 2.43e4T^{2} \)
31 \( 1 + 126.T + 2.97e4T^{2} \)
37 \( 1 + 210iT - 5.06e4T^{2} \)
41 \( 1 + 334.T + 6.89e4T^{2} \)
43 \( 1 - 297. iT - 7.95e4T^{2} \)
47 \( 1 + 553.T + 1.03e5T^{2} \)
53 \( 1 + 490. iT - 1.48e5T^{2} \)
59 \( 1 - 54iT - 2.05e5T^{2} \)
61 \( 1 - 385. iT - 2.26e5T^{2} \)
67 \( 1 - 1.05e3iT - 3.00e5T^{2} \)
71 \( 1 - 220.T + 3.57e5T^{2} \)
73 \( 1 - 210.T + 3.89e5T^{2} \)
79 \( 1 - 677.T + 4.93e5T^{2} \)
83 \( 1 - 184. iT - 5.71e5T^{2} \)
89 \( 1 - 150.T + 7.04e5T^{2} \)
97 \( 1 - 663.T + 9.12e5T^{2} \)
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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

−11.07350507723043259530758220484, −10.02938485498838776813782469099, −8.347424108201577679874189470449, −8.080253226742473260343126877902, −7.26333858271316297089828508673, −5.78055507425302685113878939602, −5.16160669463676967579233461582, −3.29324933845407010934328648978, −1.67417688972948652018982633462, −0.854886545591365439832253123225, 1.80188209013079158361016371792, 3.47147138833673080460070995921, 4.61487918653703554039234082644, 5.11953285547526917924754675196, 6.73161236654321694931259550155, 7.84409811824358542014736503744, 8.996344447876482407867759578339, 9.695556981013754992125982269502, 10.66403822076489720577580943707, 11.36885291539714845352652963196

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