Properties

Label 2-7728-1.1-c1-0-6
Degree $2$
Conductor $7728$
Sign $1$
Analytic cond. $61.7083$
Root an. cond. $7.85546$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 3-s − 7-s + 9-s − 6·11-s + 2·13-s − 6·17-s − 2·19-s + 21-s − 23-s − 5·25-s − 27-s − 6·29-s − 8·31-s + 6·33-s + 8·37-s − 2·39-s + 6·41-s − 2·43-s + 49-s + 6·51-s − 12·53-s + 2·57-s + 8·61-s − 63-s + 10·67-s + 69-s + 14·73-s + ⋯
L(s)  = 1  − 0.577·3-s − 0.377·7-s + 1/3·9-s − 1.80·11-s + 0.554·13-s − 1.45·17-s − 0.458·19-s + 0.218·21-s − 0.208·23-s − 25-s − 0.192·27-s − 1.11·29-s − 1.43·31-s + 1.04·33-s + 1.31·37-s − 0.320·39-s + 0.937·41-s − 0.304·43-s + 1/7·49-s + 0.840·51-s − 1.64·53-s + 0.264·57-s + 1.02·61-s − 0.125·63-s + 1.22·67-s + 0.120·69-s + 1.63·73-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 7728 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 7728 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(7728\)    =    \(2^{4} \cdot 3 \cdot 7 \cdot 23\)
Sign: $1$
Analytic conductor: \(61.7083\)
Root analytic conductor: \(7.85546\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 7728,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(0.5236844208\)
\(L(\frac12)\) \(\approx\) \(0.5236844208\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 + T \)
7 \( 1 + T \)
23 \( 1 + T \)
good5 \( 1 + p T^{2} \)
11 \( 1 + 6 T + p T^{2} \)
13 \( 1 - 2 T + p T^{2} \)
17 \( 1 + 6 T + p T^{2} \)
19 \( 1 + 2 T + p T^{2} \)
29 \( 1 + 6 T + p T^{2} \)
31 \( 1 + 8 T + p T^{2} \)
37 \( 1 - 8 T + p T^{2} \)
41 \( 1 - 6 T + p T^{2} \)
43 \( 1 + 2 T + p T^{2} \)
47 \( 1 + p T^{2} \)
53 \( 1 + 12 T + p T^{2} \)
59 \( 1 + p T^{2} \)
61 \( 1 - 8 T + p T^{2} \)
67 \( 1 - 10 T + p T^{2} \)
71 \( 1 + p T^{2} \)
73 \( 1 - 14 T + p T^{2} \)
79 \( 1 + 8 T + p T^{2} \)
83 \( 1 + 6 T + p T^{2} \)
89 \( 1 - 6 T + p T^{2} \)
97 \( 1 + 10 T + p T^{2} \)
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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

−7.82649995078818070298342819650, −7.18099316943188202754165388843, −6.36272639486136673232771749791, −5.78141933141309088094107707625, −5.18194655883271019147819414738, −4.33522559556098348826680369969, −3.64256650828408249010696952250, −2.53985125358816544530966024865, −1.90540760796015316102336228335, −0.34899484347838176474436710685, 0.34899484347838176474436710685, 1.90540760796015316102336228335, 2.53985125358816544530966024865, 3.64256650828408249010696952250, 4.33522559556098348826680369969, 5.18194655883271019147819414738, 5.78141933141309088094107707625, 6.36272639486136673232771749791, 7.18099316943188202754165388843, 7.82649995078818070298342819650

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