TY - JOUR AU - S. G. Pyatkov TI - On the existence of maximal semidefinite invariant subspaces for $J$-dissipative operators JO - Sbornik. Mathematics PY - 2012 SP - 234 EP - 256 VL - 203 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_2012_203_2_a4/ LA - en ID - SM_2012_203_2_a4 ER -