Fassbender H

Publications in Math-Net.Ru

1. Quadratically normal and congruence-normal matrices
   
   Zap. Nauchn. Sem. POMI, 367 (2009),  45–66
2. On the product of two skew-Hamiltonian matrices or two skew-symmetric matrices
   
   Zap. Nauchn. Sem. POMI, 359 (2008),  45–51
3. Simultaneous reduction to block triangular form by a unitary congruence transformation
   
   Zap. Nauchn. Sem. POMI, 346 (2007),  49–62