Properties

Label 2-320-5.4-c1-0-6
Degree $2$
Conductor $320$
Sign $0.447 + 0.894i$
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  − 2i·3-s + (1 + 2i)5-s − 2i·7-s − 9-s + 4·11-s − 4i·13-s + (4 − 2i)15-s − 4·19-s − 4·21-s − 2i·23-s + (−3 + 4i)25-s − 4i·27-s + 2·29-s − 8i·33-s + (4 − 2i)35-s + ⋯
L(s)  = 1  − 1.15i·3-s + (0.447 + 0.894i)5-s − 0.755i·7-s − 0.333·9-s + 1.20·11-s − 1.10i·13-s + (1.03 − 0.516i)15-s − 0.917·19-s − 0.872·21-s − 0.417i·23-s + (−0.600 + 0.800i)25-s − 0.769i·27-s + 0.371·29-s − 1.39i·33-s + (0.676 − 0.338i)35-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 320 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.447 + 0.894i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 320 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.447 + 0.894i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(320\)    =    \(2^{6} \cdot 5\)
Sign: $0.447 + 0.894i$
Analytic conductor: \(2.55521\)
Root analytic conductor: \(1.59850\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{320} (129, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 320,\ (\ :1/2),\ 0.447 + 0.894i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.24564 - 0.769853i\)
\(L(\frac12)\) \(\approx\) \(1.24564 - 0.769853i\)
\(L(\frac{3}{2})\) 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 \( 1 + 2iT - 3T^{2} \)
7 \( 1 + 2iT - 7T^{2} \)
11 \( 1 - 4T + 11T^{2} \)
13 \( 1 + 4iT - 13T^{2} \)
17 \( 1 - 17T^{2} \)
19 \( 1 + 4T + 19T^{2} \)
23 \( 1 + 2iT - 23T^{2} \)
29 \( 1 - 2T + 29T^{2} \)
31 \( 1 + 31T^{2} \)
37 \( 1 - 4iT - 37T^{2} \)
41 \( 1 - 2T + 41T^{2} \)
43 \( 1 - 6iT - 43T^{2} \)
47 \( 1 - 6iT - 47T^{2} \)
53 \( 1 - 4iT - 53T^{2} \)
59 \( 1 + 12T + 59T^{2} \)
61 \( 1 - 10T + 61T^{2} \)
67 \( 1 - 14iT - 67T^{2} \)
71 \( 1 - 8T + 71T^{2} \)
73 \( 1 - 8iT - 73T^{2} \)
79 \( 1 + 16T + 79T^{2} \)
83 \( 1 + 2iT - 83T^{2} \)
89 \( 1 + 6T + 89T^{2} \)
97 \( 1 + 16iT - 97T^{2} \)
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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

−11.48104303536883671311638124926, −10.58159980604154668236705637021, −9.779910099647641331388104810656, −8.403967875229313379463992845407, −7.41037119442425478065998900882, −6.68936429544140255042170422182, −5.98567048875714345940828822737, −4.17194767170723176649305568330, −2.74126810906234537811562562069, −1.26024997022613695056841880799, 1.89227090638606156442193957686, 3.85195947030831576555542405150, 4.62604881748944866684138426005, 5.68525882911690082517517248984, 6.76650339844250338168613987519, 8.511890261149492745300280098490, 9.176712024245970005129049893396, 9.638738958738433569855262636587, 10.79194968941809740783409351361, 11.83163441171273839208115292109

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