Properties

Label 2-7e3-1.1-c3-0-45
Degree $2$
Conductor $343$
Sign $-1$
Analytic cond. $20.2376$
Root an. cond. $4.49862$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 5.32·2-s + 8.14·3-s + 20.3·4-s − 13.9·5-s − 43.3·6-s − 65.7·8-s + 39.2·9-s + 74.0·10-s − 20.6·11-s + 165.·12-s + 52.3·13-s − 113.·15-s + 187.·16-s + 18.4·17-s − 209.·18-s − 147.·19-s − 282.·20-s + 110.·22-s + 6.30·23-s − 535.·24-s + 68.3·25-s − 278.·26-s + 99.9·27-s − 136.·29-s + 602.·30-s + 43.8·31-s − 471.·32-s + ⋯
L(s)  = 1  − 1.88·2-s + 1.56·3-s + 2.54·4-s − 1.24·5-s − 2.94·6-s − 2.90·8-s + 1.45·9-s + 2.34·10-s − 0.566·11-s + 3.98·12-s + 1.11·13-s − 1.94·15-s + 2.92·16-s + 0.262·17-s − 2.73·18-s − 1.78·19-s − 3.16·20-s + 1.06·22-s + 0.0571·23-s − 4.55·24-s + 0.546·25-s − 2.10·26-s + 0.712·27-s − 0.875·29-s + 3.66·30-s + 0.254·31-s − 2.60·32-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 343 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 343 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(343\)    =    \(7^{3}\)
Sign: $-1$
Analytic conductor: \(20.2376\)
Root analytic conductor: \(4.49862\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 343,\ (\ :3/2),\ -1)\)

Particular Values

\(L(2)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad7 \( 1 \)
good2 \( 1 + 5.32T + 8T^{2} \)
3 \( 1 - 8.14T + 27T^{2} \)
5 \( 1 + 13.9T + 125T^{2} \)
11 \( 1 + 20.6T + 1.33e3T^{2} \)
13 \( 1 - 52.3T + 2.19e3T^{2} \)
17 \( 1 - 18.4T + 4.91e3T^{2} \)
19 \( 1 + 147.T + 6.85e3T^{2} \)
23 \( 1 - 6.30T + 1.21e4T^{2} \)
29 \( 1 + 136.T + 2.43e4T^{2} \)
31 \( 1 - 43.8T + 2.97e4T^{2} \)
37 \( 1 + 173.T + 5.06e4T^{2} \)
41 \( 1 + 121.T + 6.89e4T^{2} \)
43 \( 1 - 474.T + 7.95e4T^{2} \)
47 \( 1 + 167.T + 1.03e5T^{2} \)
53 \( 1 + 531.T + 1.48e5T^{2} \)
59 \( 1 + 646.T + 2.05e5T^{2} \)
61 \( 1 + 125.T + 2.26e5T^{2} \)
67 \( 1 + 266.T + 3.00e5T^{2} \)
71 \( 1 + 409.T + 3.57e5T^{2} \)
73 \( 1 + 338.T + 3.89e5T^{2} \)
79 \( 1 - 93.6T + 4.93e5T^{2} \)
83 \( 1 - 785.T + 5.71e5T^{2} \)
89 \( 1 - 1.36e3T + 7.04e5T^{2} \)
97 \( 1 + 1.40e3T + 9.12e5T^{2} \)
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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

−10.50791075033185192856087943592, −9.273451229634415636873675384755, −8.683534087028564780113059704417, −7.987823366577196654427631650803, −7.58785807744922345404788536324, −6.39325970422094511054732694715, −3.94657753471245380230401734190, −2.90700685481000758450343605504, −1.68987134464273166139876651997, 0, 1.68987134464273166139876651997, 2.90700685481000758450343605504, 3.94657753471245380230401734190, 6.39325970422094511054732694715, 7.58785807744922345404788536324, 7.987823366577196654427631650803, 8.683534087028564780113059704417, 9.273451229634415636873675384755, 10.50791075033185192856087943592

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