Properties

Label 2-7728-1.1-c1-0-64
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 − 3·5-s − 7-s + 9-s + 5·13-s + 3·15-s − 8·19-s + 21-s + 23-s + 4·25-s − 27-s + 3·29-s − 2·31-s + 3·35-s − 7·37-s − 5·39-s + 9·41-s + 43-s − 3·45-s + 3·47-s + 49-s − 12·53-s + 8·57-s + 6·59-s + 14·61-s − 63-s − 15·65-s + ⋯
L(s)  = 1  − 0.577·3-s − 1.34·5-s − 0.377·7-s + 1/3·9-s + 1.38·13-s + 0.774·15-s − 1.83·19-s + 0.218·21-s + 0.208·23-s + 4/5·25-s − 0.192·27-s + 0.557·29-s − 0.359·31-s + 0.507·35-s − 1.15·37-s − 0.800·39-s + 1.40·41-s + 0.152·43-s − 0.447·45-s + 0.437·47-s + 1/7·49-s − 1.64·53-s + 1.05·57-s + 0.781·59-s + 1.79·61-s − 0.125·63-s − 1.86·65-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)$
bad2 \( 1 \)
3 \( 1 + T \)
7 \( 1 + T \)
23 \( 1 - T \)
good5 \( 1 + 3 T + p T^{2} \)
11 \( 1 + p T^{2} \)
13 \( 1 - 5 T + p T^{2} \)
17 \( 1 + p T^{2} \)
19 \( 1 + 8 T + p T^{2} \)
29 \( 1 - 3 T + p T^{2} \)
31 \( 1 + 2 T + p T^{2} \)
37 \( 1 + 7 T + p T^{2} \)
41 \( 1 - 9 T + p T^{2} \)
43 \( 1 - T + p T^{2} \)
47 \( 1 - 3 T + p T^{2} \)
53 \( 1 + 12 T + p T^{2} \)
59 \( 1 - 6 T + p T^{2} \)
61 \( 1 - 14 T + p T^{2} \)
67 \( 1 - 4 T + p T^{2} \)
71 \( 1 + 6 T + p T^{2} \)
73 \( 1 + 4 T + p T^{2} \)
79 \( 1 - 16 T + p T^{2} \)
83 \( 1 - 12 T + p T^{2} \)
89 \( 1 - 6 T + p T^{2} \)
97 \( 1 + T + p T^{2} \)
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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

−7.52155684206561073341645667168, −6.67518484569444553793900631957, −6.32249153618949543978403158493, −5.44869862979028810984163064729, −4.51488140989069929467551471176, −3.93574107593318254849578479217, −3.42066663020126256699565937539, −2.22585205707958713903209715483, −0.979894419021066435174737834516, 0, 0.979894419021066435174737834516, 2.22585205707958713903209715483, 3.42066663020126256699565937539, 3.93574107593318254849578479217, 4.51488140989069929467551471176, 5.44869862979028810984163064729, 6.32249153618949543978403158493, 6.67518484569444553793900631957, 7.52155684206561073341645667168

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