Geodesic
THE GROUP OF BI-GALOIS OBJECTS OVER THE COORDINATE ALGEBRA OF THE FROBENIUS–LUSZTIG KERNEL OF SL(2)
Glasgow mathematical journal, Tome 58 (2016) no. 3, pp. 727-738

Voir la notice de l'article provenant de la source Cambridge University Press

We construct, for q a root of unity of odd order, an embedding of the projective special linear group PSL(n) into the group of bi-Galois objects over u q (sl(n))*, the coordinate algebra of the Frobenius–Lusztig kernel of SL(n), which is shown to be an isomorphism at n=2. 
BICHON, JULIEN. THE GROUP OF BI-GALOIS OBJECTS OVER THE COORDINATE ALGEBRA OF THE FROBENIUS–LUSZTIG KERNEL OF SL(2). Glasgow mathematical journal, Tome 58 (2016) no. 3, pp. 727-738. doi: 10.1017/S0017089515000439
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