The automorphism group of the non-split Cartan modular curve of level 11

Dose, Valerio; Fernández González, Julio; González Rovira, Josep; Schoof, Rene

doi:10.1016/j.jalgebra.2014.05.036

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Dose, Valerio

Fernández González, Julio

González Rovira, Josep

Schoof, Rene

Document typeArticle

Defense date2014-11-01

Rights accessRestricted access - publisher's policy

Abstract

We derive equations for the modular curve X-ns(11) associated to a non-split Cartan subgroup of GL(2)(F-11). This allows us to compute the automorphism group of the curve and show that it is isomorphic to Klein's four group. (C) 2014 Elsevier Inc. All rights reserved.

CitationDose, V. [et al.]. The automorphism group of the non-split Cartan modular curve of level 11. "Journal of algebra", 01 Novembre 2014, vol. 417, p. 95-102.

URIhttp://hdl.handle.net/2117/24136

DOI10.1016/j.jalgebra.2014.05.036

ISSN0021-8693

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