Аннотация:
Methods of $*$-representations in Hilbert space are applied to study of systems of $n$ subspaces in a linear space. It is proved that the problem of description of $n$-transitive subspaces in a finite-dimensional linear space is $*$-wild for $n\geq 5$.
Ключевые слова:
algebras generated by projections; irreducible inequivalent representations; transitive nonisomorphic systems of subspaces.