Properties

Label 2-7728-1.1-c1-0-74
Degree $2$
Conductor $7728$
Sign $1$
Analytic cond. $61.7083$
Root an. cond. $7.85546$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3-s + 3.51·5-s + 7-s + 9-s + 1.74·11-s + 6.33·13-s + 3.51·15-s − 5.94·17-s − 1.74·19-s + 21-s − 23-s + 7.33·25-s + 27-s − 5.68·29-s − 7.94·31-s + 1.74·33-s + 3.51·35-s + 1.53·37-s + 6.33·39-s + 12.1·41-s − 6.43·43-s + 3.51·45-s − 3.59·47-s + 49-s − 5.94·51-s + 12.9·53-s + 6.12·55-s + ⋯
L(s)  = 1  + 0.577·3-s + 1.57·5-s + 0.377·7-s + 0.333·9-s + 0.525·11-s + 1.75·13-s + 0.906·15-s − 1.44·17-s − 0.399·19-s + 0.218·21-s − 0.208·23-s + 1.46·25-s + 0.192·27-s − 1.05·29-s − 1.42·31-s + 0.303·33-s + 0.593·35-s + 0.252·37-s + 1.01·39-s + 1.89·41-s − 0.981·43-s + 0.523·45-s − 0.524·47-s + 0.142·49-s − 0.832·51-s + 1.77·53-s + 0.825·55-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: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 7728,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(4.216060762\)
\(L(\frac12)\) \(\approx\) \(4.216060762\)
\(L(\frac{3}{2})\) 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 \( 1 - 3.51T + 5T^{2} \)
11 \( 1 - 1.74T + 11T^{2} \)
13 \( 1 - 6.33T + 13T^{2} \)
17 \( 1 + 5.94T + 17T^{2} \)
19 \( 1 + 1.74T + 19T^{2} \)
29 \( 1 + 5.68T + 29T^{2} \)
31 \( 1 + 7.94T + 31T^{2} \)
37 \( 1 - 1.53T + 37T^{2} \)
41 \( 1 - 12.1T + 41T^{2} \)
43 \( 1 + 6.43T + 43T^{2} \)
47 \( 1 + 3.59T + 47T^{2} \)
53 \( 1 - 12.9T + 53T^{2} \)
59 \( 1 - 8.69T + 59T^{2} \)
61 \( 1 - 8.47T + 61T^{2} \)
67 \( 1 - 4.46T + 67T^{2} \)
71 \( 1 - 13.4T + 71T^{2} \)
73 \( 1 - 4.29T + 73T^{2} \)
79 \( 1 - 7.42T + 79T^{2} \)
83 \( 1 - 7.75T + 83T^{2} \)
89 \( 1 - 4.18T + 89T^{2} \)
97 \( 1 - 5.53T + 97T^{2} \)
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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

−8.082243838947892189623514803689, −6.94780137012735019449757008989, −6.51349206185616921169893333106, −5.79967427452803150834024181265, −5.23579777329805449339148490397, −4.09038538584592480744241090129, −3.66730676847375082168734886218, −2.31790573184105091463959102782, −1.98849833132928814604858362612, −1.06510887790488622720664097977, 1.06510887790488622720664097977, 1.98849833132928814604858362612, 2.31790573184105091463959102782, 3.66730676847375082168734886218, 4.09038538584592480744241090129, 5.23579777329805449339148490397, 5.79967427452803150834024181265, 6.51349206185616921169893333106, 6.94780137012735019449757008989, 8.082243838947892189623514803689

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