Geometric representation theory, geometric invariant theory.

• 1. S. Cupit-Foutou, Classification of two-orbit varieties, Commentarii Mathematici Helvetici, 78, Nє 2, 2003 , pp. 245-265.
• 2. S. Cupit-Foutou, D. Zaffran, Non-Kohler manifolds and GIT-quotients, Mathematische Zeitschrift, 257, 2007, N°4, pp. 783-797.[math.CV/0502029] 3. P. Bravi and S. Cupit-Foutou, Equivariant deformations of the affine multicone over a flag variety, to appear in Advances in Mathematics [ math.AG/0603690]

• Ruhr-Universität Bochum
• University of Cologne