Properties

Label 2-448-28.27-c1-0-1
Degree $2$
Conductor $448$
Sign $-i$
Analytic cond. $3.57729$
Root an. cond. $1.89137$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2.64i·7-s − 3·9-s + 5.29i·11-s + 5.29i·23-s + 5·25-s + 2·29-s − 6·37-s + 5.29i·43-s − 7.00·49-s + 10·53-s − 7.93i·63-s − 15.8i·67-s + 5.29i·71-s − 14.0·77-s − 15.8i·79-s + ⋯
L(s)  = 1  + 0.999i·7-s − 9-s + 1.59i·11-s + 1.10i·23-s + 25-s + 0.371·29-s − 0.986·37-s + 0.806i·43-s − 49-s + 1.37·53-s − 0.999i·63-s − 1.93i·67-s + 0.627i·71-s − 1.59·77-s − 1.78i·79-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 448 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -i\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 448 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -i\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(448\)    =    \(2^{6} \cdot 7\)
Sign: $-i$
Analytic conductor: \(3.57729\)
Root analytic conductor: \(1.89137\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{448} (447, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 448,\ (\ :1/2),\ -i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.786169 + 0.786169i\)
\(L(\frac12)\) \(\approx\) \(0.786169 + 0.786169i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
7 \( 1 - 2.64iT \)
good3 \( 1 + 3T^{2} \)
5 \( 1 - 5T^{2} \)
11 \( 1 - 5.29iT - 11T^{2} \)
13 \( 1 - 13T^{2} \)
17 \( 1 - 17T^{2} \)
19 \( 1 + 19T^{2} \)
23 \( 1 - 5.29iT - 23T^{2} \)
29 \( 1 - 2T + 29T^{2} \)
31 \( 1 + 31T^{2} \)
37 \( 1 + 6T + 37T^{2} \)
41 \( 1 - 41T^{2} \)
43 \( 1 - 5.29iT - 43T^{2} \)
47 \( 1 + 47T^{2} \)
53 \( 1 - 10T + 53T^{2} \)
59 \( 1 + 59T^{2} \)
61 \( 1 - 61T^{2} \)
67 \( 1 + 15.8iT - 67T^{2} \)
71 \( 1 - 5.29iT - 71T^{2} \)
73 \( 1 - 73T^{2} \)
79 \( 1 + 15.8iT - 79T^{2} \)
83 \( 1 + 83T^{2} \)
89 \( 1 - 89T^{2} \)
97 \( 1 - 97T^{2} \)
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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

−11.49152497528393041707668265840, −10.38635889052106819476988993967, −9.410178078317078973113001315154, −8.738955865111390081529635852526, −7.69854706366703164474507715074, −6.65260575479626587316422373006, −5.56225003010544887796105488184, −4.73502645778609063858650961966, −3.16007984510917038666590124866, −2.00144836748714336353360416757, 0.69463734471982938687345208467, 2.81427536528123045363032090073, 3.83073094205928889099629351890, 5.17334268337988932652495499792, 6.18572740184707529442717171464, 7.11618333570179855500660868961, 8.401683501285587307503468036059, 8.758309550910820857072502984613, 10.21859226079339160727226181413, 10.86788662483466188817600966342

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