  The "curved" super Grassmannian is the supervariety of subsupervarieties of
purely odd dimension $k$ in a~supervariety of purely odd dimension $n$, unlike
the "usual" super Grassmannian which is the supervariety of linear
subsuperspacies of purely odd dimension $k$ in a~superspace of purely odd
dimension $n$. The Lie superalgebras of all and Hamiltonian vector fields on
the superpoint are realized as Lie superalgebras of derivations of the
structure sheaves of certain "curved" super Grassmannians,
