Genus 2 curves in isogeny class 8649.c
Label | Equation |
---|---|
8649.c.700569.1 | \(y^2 + (x^2 + x)y = x^5 + 9x^4 + 13x^3 + 4x^2 - x\) |
L-function data
Analytic rank: | \(0\) | ||||||||||||||||||||||
Mordell-Weil rank: | \(0\) | ||||||||||||||||||||||
Bad L-factors: |
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Good L-factors: |
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See L-function page for more information |
Sato-Tate group
\(\mathrm{ST} =\) $E_6$, \(\quad \mathrm{ST}^0 = \mathrm{SU}(2)\)
Decomposition of the Jacobian
Splits over the number field \(\Q (b) \simeq \) 6.6.772987077.1 with defining polynomial:
\(x^{6} - x^{5} - 28 x^{4} + 51 x^{3} + 75 x^{2} - 98 x - 92\)
Decomposes up to isogeny as the square of the elliptic curve isogeny class:
\(y^2 = x^3 - g_4 / 48 x - g_6 / 864\) with
\(g_4 = -\frac{2460015117}{49664} b^{5} + \frac{2258207991}{24832} b^{4} + \frac{32526536337}{24832} b^{3} - \frac{179864494029}{49664} b^{2} - \frac{16412784489}{24832} b + \frac{66940747947}{12416}\)
\(g_6 = \frac{7274813829939}{397312} b^{5} - \frac{13395850652817}{397312} b^{4} - \frac{192389430504051}{397312} b^{3} + \frac{133226981440569}{99328} b^{2} + \frac{6022243915839}{24832} b - \frac{99187982598807}{49664}\)
Conductor norm: 1
Endomorphisms of the Jacobian
Of \(\GL_2\)-type over \(\Q\)
Endomorphism algebra over \(\Q\):
\(\End (J_{}) \otimes \Q \) | \(\simeq\) | \(\Q(\sqrt{-3}) \) |
\(\End (J_{}) \otimes \R\) | \(\simeq\) | \(\C\) |
Smallest field over which all endomorphisms are defined:
Galois number field \(K = \Q (a) \simeq \) 6.6.772987077.1 with defining polynomial \(x^{6} - x^{5} - 28 x^{4} + 51 x^{3} + 75 x^{2} - 98 x - 92\)
Endomorphism algebra over \(\overline{\Q}\):
\(\End (J_{\overline{\Q}}) \otimes \Q \) | \(\simeq\) | \(\mathrm{M}_2(\)\(\Q\)\()\) |
\(\End (J_{\overline{\Q}}) \otimes \R\) | \(\simeq\) | \(\mathrm{M}_2 (\R)\) |
More complete information on endomorphism algebras and rings can be found on the pages of the individual curves in the isogeny class.