Poincaré families and automorphisms of principal bundles on a curve

Indranil Biswas; Norbert Hoffmann

Comptes Rendus. Mathématique, Volume 347 (2009) no. 21 p. 1285-1288

On semistable vector bundles over curves

Indranil Biswas; Georg Hein; Norbert Hoffmann

Comptes Rendus. Mathématique, Volume 346 (2008) no. 17 p. 981-984