6 citations · 6 across the 3 of their papers we have counts for
5 papers
Projections in operator ranges
Gustavo Corach, Alejandra Maestripieri, Demetrio Stojanoff
If $\H$ is a Hilbert space, is a positive bounded linear operator on $\cH$ and $\cS$ is a closed subspace of $\cH$, the relative position between $\cS$ and $A^{-1}(\cS \orto)$…
Weighted generalized inverses, oblique projections and least squares problems
Gustavo Corach, Alejandra Maestripieri
A generalization with singular weights of Moore-Penrose generalized inverses of closed range operators in Hilbert spaces is studied using the notion of compatibility of subspaces a…
Metric and homogeneous structure of closed range operators
Gustavo Corach, Alejandra Maestripieri, Mostafa Mbekhta
Let $\CR$ be the set of all bounded linear operators between Hilbert spaces $\cH, \cK$. This paper is devoted to the study of the topological properties of $\CR$ if certain natural…
Oblique projections and Schur complements
G. Corach, A. Maestripieri, D. Stojanoff
Let H be a Hilbert space, L(H) the algebra of all bounded linear operators on H and <, >_A : H \times H \to C the bounded sesquilinear form induced by a selfadjoint A in L(H), < ξ,…
Polar decomposition under perturbations of the scalar product
G. Corach, A. Maestripieri, D. Stojanoff
Let A be a unital C* algebra with involution * represented in a Hilbert space H, G the group of invertible elements of A, U the unitary group of A, G^s the set of invertible selfad…