TY JOUR TI On the boundedness of hamiltonian operators KW Krein space KW dissipative KW self-adjoint operator KW Hamiltonian JO Actual directions of scientific researches of the XXI century: theory and practice AU Gridneva, I.. AU Fedulova, L.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov