We derive equations for the modular curve Xns(11) associated to a non-split Cartan subgroup of GL2(F11). This allows us to compute the automorphism group of the curve and show that it is isomorphic to Klein’s four group.
Dose, V., Gonzalez, J., Fernandez, J., Schoof, R.j. (2014). The automorphism group of the non-split Cartan modular curve of level 11. JOURNAL OF ALGEBRA, 417, 95-102 [dx.doi.org/10.1016/j.jalgebra.2014.05.036].
The automorphism group of the non-split Cartan modular curve of level 11
SCHOOF, RENATUS JOHANNES
2014-01-01
Abstract
We derive equations for the modular curve Xns(11) associated to a non-split Cartan subgroup of GL2(F11). This allows us to compute the automorphism group of the curve and show that it is isomorphic to Klein’s four group.File in questo prodotto:
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