Properties

Label 2-68-68.47-c0-0-0
Degree $2$
Conductor $68$
Sign $0.615 - 0.788i$
Analytic cond. $0.0339364$
Root an. cond. $0.184218$
Motivic weight $0$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + i·2-s − 4-s + (−1 − i)5-s i·8-s + i·9-s + (1 − i)10-s + 16-s − 17-s − 18-s + (1 + i)20-s + i·25-s + (1 + i)29-s + i·32-s i·34-s i·36-s + (−1 − i)37-s + ⋯
L(s)  = 1  + i·2-s − 4-s + (−1 − i)5-s i·8-s + i·9-s + (1 − i)10-s + 16-s − 17-s − 18-s + (1 + i)20-s + i·25-s + (1 + i)29-s + i·32-s i·34-s i·36-s + (−1 − i)37-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 68 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.615 - 0.788i)\, \overline{\Lambda}(1-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 68 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.615 - 0.788i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(68\)    =    \(2^{2} \cdot 17\)
Sign: $0.615 - 0.788i$
Analytic conductor: \(0.0339364\)
Root analytic conductor: \(0.184218\)
Motivic weight: \(0\)
Rational: no
Arithmetic: yes
Character: $\chi_{68} (47, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 68,\ (\ :0),\ 0.615 - 0.788i)\)

Particular Values

\(L(\frac{1}{2})\) \(\approx\) \(0.4210945963\)
\(L(\frac12)\) \(\approx\) \(0.4210945963\)
\(L(1)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - iT \)
17 \( 1 + T \)
good3 \( 1 - iT^{2} \)
5 \( 1 + (1 + i)T + iT^{2} \)
7 \( 1 + iT^{2} \)
11 \( 1 + iT^{2} \)
13 \( 1 + T^{2} \)
19 \( 1 + T^{2} \)
23 \( 1 + iT^{2} \)
29 \( 1 + (-1 - i)T + iT^{2} \)
31 \( 1 - iT^{2} \)
37 \( 1 + (1 + i)T + iT^{2} \)
41 \( 1 + (-1 + i)T - iT^{2} \)
43 \( 1 + T^{2} \)
47 \( 1 - T^{2} \)
53 \( 1 - T^{2} \)
59 \( 1 + T^{2} \)
61 \( 1 + (1 - i)T - iT^{2} \)
67 \( 1 - T^{2} \)
71 \( 1 - iT^{2} \)
73 \( 1 + (-1 - i)T + iT^{2} \)
79 \( 1 + iT^{2} \)
83 \( 1 + T^{2} \)
89 \( 1 + T^{2} \)
97 \( 1 + (1 + i)T + iT^{2} \)
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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

−15.59461919004984204952321323569, −14.21237496700354657276706814216, −13.15884627493339383429814612152, −12.21051665090741868031115105838, −10.68372419403733204059333291826, −8.986147440681671677679816455417, −8.208046929617629467128032615792, −7.09193503008472694559106097842, −5.27019738107696468255483049268, −4.22564061217201658866752193569, 3.03544157255568814852703229915, 4.29878395807902601847606510864, 6.52495137986341477590907454457, 8.063910698916515610767798864707, 9.401820822599483704682833492791, 10.67475820275141773886786578035, 11.54553781733229543264173850657, 12.36784286101715037183258870678, 13.73708928432188607873060131214, 14.84625762244638749011823645362

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