Jorge Antezana

most citedJensen's Inequality and majorization

7 citations · 7 across the 4 of their papers we have counts for

collaborators

4 papers

math.FA2005

Bilateral Shorted Operators and Parallel Sums

Jorge Antezana, Gustavo Corach, Demetrio Stojanoff

In this paper we study shorted operators relative to two different subspaces, for bounded operators on infinite dimensional Hilbert spaces. We define two notions of complementabili…

math.FA2005

The Schur-Horn theorem for operators and frames with prescribed norms and frame operator

J. Antezana, P. Massey, M. Ruiz +1

Let $H$ be a Hilbert space. Given a bounded positive definite operator $S$ on $H$ , and a bounded sequence $c = {c_{k}}_{k \in N}$ of non negativ…

math.FA2004★ 7 cited

Jensen's Inequality and majorization

Jorge Antezana, Pedro Massey, Demetrio Stojanoff

Let $A$ be a $C^{*}$ -algebra and $ϕ:\cA\to L(H)$ be a positive unital map. Then, for a convex function $f : I \to R$ defined on some open interval and a self-adjoint…

math.FA2004

Spectral shorted operators

Jorge Antezana, Gustavo Corach, Demetrio Stojanoff

If $H$ is a Hilbert space, $S \subseteq H$ is a closed subspace of $H$ , and $A$ is a positive bounded linear operator on $H$ , the spec…