%0 Journal Article %A E. M. Varfolomeev %T On some properties of elliptic and parabolic functional differential operators arising in nonlinear optics %J Contemporary Mathematics. Fundamental Directions %D 2007 %P 5-36 %V 21 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMFD_2007_21_a0/ %G ru %F CMFD_2007_21_a0