Plücker coordinates of finite-dimensional subspaces of ${\ell }^p$ and its direct sums: summability, reconstruction, stratification

David Victor Feldman

An $n$-dimensional subspace of ${\ell }^p$ has Plücker coordinates indexed by the $n$-element subsets of $\mathbb{N}$. We show these coordinates lie in $\ell^p\In{n}$ --- the exponent is pre…