%0 Journal Article %A M. V. Ignat'ev %T The Bruhat--Chevalley order on involutions of the hyperoctahedral group and~combinatorics of $B$-orbit closures %J Zapiski Nauchnykh Seminarov POMI %D 2012 %P 166-188 %V 400 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2012_400_a7/ %G ru %F ZNSL_2012_400_a7