Properties

Label 2-260-1.1-c1-0-0
Degree $2$
Conductor $260$
Sign $1$
Analytic cond. $2.07611$
Root an. cond. $1.44087$
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  − 2.67·3-s + 5-s − 1.14·7-s + 4.14·9-s + 3.81·11-s + 13-s − 2.67·15-s + 7.34·17-s + 5.52·19-s + 3.05·21-s − 6.67·23-s + 25-s − 3.05·27-s + 2.85·29-s − 0.183·31-s − 10.2·33-s − 1.14·35-s + 6.48·37-s − 2.67·39-s − 7.34·41-s + 2.67·43-s + 4.14·45-s − 2.85·47-s − 5.69·49-s − 19.6·51-s − 13.6·53-s + 3.81·55-s + ⋯
L(s)  = 1  − 1.54·3-s + 0.447·5-s − 0.432·7-s + 1.38·9-s + 1.15·11-s + 0.277·13-s − 0.690·15-s + 1.78·17-s + 1.26·19-s + 0.667·21-s − 1.39·23-s + 0.200·25-s − 0.588·27-s + 0.530·29-s − 0.0329·31-s − 1.77·33-s − 0.193·35-s + 1.06·37-s − 0.427·39-s − 1.14·41-s + 0.407·43-s + 0.617·45-s − 0.416·47-s − 0.813·49-s − 2.74·51-s − 1.87·53-s + 0.514·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 260 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 260 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(260\)    =    \(2^{2} \cdot 5 \cdot 13\)
Sign: $1$
Analytic conductor: \(2.07611\)
Root analytic conductor: \(1.44087\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 260,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(0.8752195919\)
\(L(\frac12)\) \(\approx\) \(0.8752195919\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
5 \( 1 - T \)
13 \( 1 - T \)
good3 \( 1 + 2.67T + 3T^{2} \)
7 \( 1 + 1.14T + 7T^{2} \)
11 \( 1 - 3.81T + 11T^{2} \)
17 \( 1 - 7.34T + 17T^{2} \)
19 \( 1 - 5.52T + 19T^{2} \)
23 \( 1 + 6.67T + 23T^{2} \)
29 \( 1 - 2.85T + 29T^{2} \)
31 \( 1 + 0.183T + 31T^{2} \)
37 \( 1 - 6.48T + 37T^{2} \)
41 \( 1 + 7.34T + 41T^{2} \)
43 \( 1 - 2.67T + 43T^{2} \)
47 \( 1 + 2.85T + 47T^{2} \)
53 \( 1 + 13.6T + 53T^{2} \)
59 \( 1 - 5.16T + 59T^{2} \)
61 \( 1 - 5.14T + 61T^{2} \)
67 \( 1 + 2.48T + 67T^{2} \)
71 \( 1 - 3.81T + 71T^{2} \)
73 \( 1 - 12.7T + 73T^{2} \)
79 \( 1 - 9.34T + 79T^{2} \)
83 \( 1 - 11.8T + 83T^{2} \)
89 \( 1 + 14.9T + 89T^{2} \)
97 \( 1 - 7.71T + 97T^{2} \)
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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

−11.97045810773895878911912565961, −11.22776218748601662475695697596, −10.02221034842396284484249048409, −9.588896029624823785480645195865, −7.919297841251960545534826261088, −6.61159627597652009595990559614, −5.97942623479865784588510214274, −5.05923654679930043929837227162, −3.56958656239750513137218875214, −1.18090226205146643611297427368, 1.18090226205146643611297427368, 3.56958656239750513137218875214, 5.05923654679930043929837227162, 5.97942623479865784588510214274, 6.61159627597652009595990559614, 7.919297841251960545534826261088, 9.588896029624823785480645195865, 10.02221034842396284484249048409, 11.22776218748601662475695697596, 11.97045810773895878911912565961

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