%0 Journal Article %A G. A. Kurina %A G. V. Martynenko %T On the Reducibility of a Nonnegatively Hamiltonian Periodic Operator Function in a Real Hilbert Space to a Block Diagonal Form %J Differencialʹnye uravneniâ %D 2001 %P 212-217 %V 37 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2001_37_2_a7/ %G ru %F DE_2001_37_2_a7