Properties

Label 2-7728-1.1-c1-0-75
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 $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 3-s − 2·5-s + 7-s + 9-s − 4·11-s + 2·13-s + 2·15-s + 6·17-s − 21-s − 23-s − 25-s − 27-s − 2·29-s − 4·31-s + 4·33-s − 2·35-s + 6·37-s − 2·39-s − 6·41-s − 12·43-s − 2·45-s + 12·47-s + 49-s − 6·51-s + 6·53-s + 8·55-s + 4·59-s + ⋯
L(s)  = 1  − 0.577·3-s − 0.894·5-s + 0.377·7-s + 1/3·9-s − 1.20·11-s + 0.554·13-s + 0.516·15-s + 1.45·17-s − 0.218·21-s − 0.208·23-s − 1/5·25-s − 0.192·27-s − 0.371·29-s − 0.718·31-s + 0.696·33-s − 0.338·35-s + 0.986·37-s − 0.320·39-s − 0.937·41-s − 1.82·43-s − 0.298·45-s + 1.75·47-s + 1/7·49-s − 0.840·51-s + 0.824·53-s + 1.07·55-s + 0.520·59-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: \(1\)
Selberg data: \((2,\ 7728,\ (\ :1/2),\ -1)\)

Particular Values

\(L(1)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$Isogeny Class over $\mathbf{F}_p$
bad2 \( 1 \)
3 \( 1 + T \)
7 \( 1 - T \)
23 \( 1 + T \)
good5 \( 1 + 2 T + p T^{2} \) 1.5.c
11 \( 1 + 4 T + p T^{2} \) 1.11.e
13 \( 1 - 2 T + p T^{2} \) 1.13.ac
17 \( 1 - 6 T + p T^{2} \) 1.17.ag
19 \( 1 + p T^{2} \) 1.19.a
29 \( 1 + 2 T + p T^{2} \) 1.29.c
31 \( 1 + 4 T + p T^{2} \) 1.31.e
37 \( 1 - 6 T + p T^{2} \) 1.37.ag
41 \( 1 + 6 T + p T^{2} \) 1.41.g
43 \( 1 + 12 T + p T^{2} \) 1.43.m
47 \( 1 - 12 T + p T^{2} \) 1.47.am
53 \( 1 - 6 T + p T^{2} \) 1.53.ag
59 \( 1 - 4 T + p T^{2} \) 1.59.ae
61 \( 1 + 10 T + p T^{2} \) 1.61.k
67 \( 1 + 4 T + p T^{2} \) 1.67.e
71 \( 1 - 16 T + p T^{2} \) 1.71.aq
73 \( 1 - 2 T + p T^{2} \) 1.73.ac
79 \( 1 + 8 T + p T^{2} \) 1.79.i
83 \( 1 - 16 T + p T^{2} \) 1.83.aq
89 \( 1 - 6 T + p T^{2} \) 1.89.ag
97 \( 1 + 2 T + p T^{2} \) 1.97.c
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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

−7.67885422258497769779216024519, −6.95261553830085557770774646761, −5.95604988663979719795800768667, −5.42337022626503229617169061411, −4.80111153791336777277174054528, −3.86876834426994350817882843688, −3.32708992037196660019604706161, −2.19608361011235337150062851626, −1.07600596181236249452903536885, 0, 1.07600596181236249452903536885, 2.19608361011235337150062851626, 3.32708992037196660019604706161, 3.86876834426994350817882843688, 4.80111153791336777277174054528, 5.42337022626503229617169061411, 5.95604988663979719795800768667, 6.95261553830085557770774646761, 7.67885422258497769779216024519

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