New posts in Invariant Subspace

Characterization for invariant subspace

Non-orthogonal invariant subspaces

Does the action of a linear map on $k$-dimensional subspaces determine it up to scaling?

If a linear map $T$ has a $k$-dimensional invariant subspace, does it admit an $n-k$ invariant subspace?

Hermitian Operators and the Spectral Theorem