%0 Journal Article %A Simon Gindikin %T Upper half-plane in the Grassmanian $Gr(n;2n)$ %J Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika %D 2019 %P 406-411 %V 12 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/JSFU_2019_12_4_a0/ %G en %F JSFU_2019_12_4_a0