Properties

Label 2-7728-1.1-c1-0-26
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 + 0.618·5-s + 7-s + 9-s + 3·11-s − 1.61·13-s − 0.618·15-s − 6.70·17-s − 0.236·19-s − 21-s + 23-s − 4.61·25-s − 27-s − 6.23·29-s + 3·31-s − 3·33-s + 0.618·35-s + 0.527·37-s + 1.61·39-s + 5.94·41-s − 2.09·43-s + 0.618·45-s + 4.76·47-s + 49-s + 6.70·51-s + 6.32·53-s + 1.85·55-s + ⋯
L(s)  = 1  − 0.577·3-s + 0.276·5-s + 0.377·7-s + 0.333·9-s + 0.904·11-s − 0.448·13-s − 0.159·15-s − 1.62·17-s − 0.0541·19-s − 0.218·21-s + 0.208·23-s − 0.923·25-s − 0.192·27-s − 1.15·29-s + 0.538·31-s − 0.522·33-s + 0.104·35-s + 0.0867·37-s + 0.259·39-s + 0.928·41-s − 0.318·43-s + 0.0921·45-s + 0.694·47-s + 0.142·49-s + 0.939·51-s + 0.868·53-s + 0.250·55-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

\(L(1)\) \(\approx\) \(1.593872952\)
\(L(\frac12)\) \(\approx\) \(1.593872952\)
\(L(\frac{3}{2})\) 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 \( 1 - 0.618T + 5T^{2} \)
11 \( 1 - 3T + 11T^{2} \)
13 \( 1 + 1.61T + 13T^{2} \)
17 \( 1 + 6.70T + 17T^{2} \)
19 \( 1 + 0.236T + 19T^{2} \)
29 \( 1 + 6.23T + 29T^{2} \)
31 \( 1 - 3T + 31T^{2} \)
37 \( 1 - 0.527T + 37T^{2} \)
41 \( 1 - 5.94T + 41T^{2} \)
43 \( 1 + 2.09T + 43T^{2} \)
47 \( 1 - 4.76T + 47T^{2} \)
53 \( 1 - 6.32T + 53T^{2} \)
59 \( 1 - 7.38T + 59T^{2} \)
61 \( 1 + 0.854T + 61T^{2} \)
67 \( 1 - 13.5T + 67T^{2} \)
71 \( 1 - 2.38T + 71T^{2} \)
73 \( 1 - 6.23T + 73T^{2} \)
79 \( 1 + 6.70T + 79T^{2} \)
83 \( 1 + 1.47T + 83T^{2} \)
89 \( 1 - 7.79T + 89T^{2} \)
97 \( 1 - 14.4T + 97T^{2} \)
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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

−7.76510697465294518208095151697, −7.03215543771166556290692087471, −6.50136686595623507719007010167, −5.79502308844506216933928996637, −5.10040932924411161093909520212, −4.29294202007692834825117800997, −3.80084775561380021621834420549, −2.44175164493076720499479069033, −1.82154885748670611987139882791, −0.64602063457949569871679077669, 0.64602063457949569871679077669, 1.82154885748670611987139882791, 2.44175164493076720499479069033, 3.80084775561380021621834420549, 4.29294202007692834825117800997, 5.10040932924411161093909520212, 5.79502308844506216933928996637, 6.50136686595623507719007010167, 7.03215543771166556290692087471, 7.76510697465294518208095151697

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