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math.SG2013
Generalized Conley-Zehnder index
Jean Gutt
The Conley-Zehnder index associates an integer to any continuous path of symplectic matrices starting from the identity and ending at a matrix which does not admit 1 as an eigenval…
math.SG2013★ 2 cited
Normal Forms for Symplectic Matrices
Jean Gutt
We give a self contained and elementary description of normal forms for symplectic matrices, based on geometrical considerations. The normal forms in question are expressed in term…
math.AG2013★ 2 cited
Hwang-Mok rigidity of cominuscule homogeneous varieties in positive characteristic
Jan Gutt
Jun-Muk Hwang and Ngaiming Mok have proved the rigidity of irreducible Hermitian symmetric spaces of compact type under Kaehler degeneration. I adapt their argument to the algebrai…