J. Antezana

activity

20042026

most citedLorentz-Shimogaki and Boyd theorems for weighted Lorentz spaces

15 citations · 51 across the 28 of their papers we have counts for

collaborators

Showing 2004 · math.FAShow all

4 papers · 2 filters

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★ 9 cited

Nullspaces and frames

Jorge Antezana, Gustavo Corach, Mariano Ruiz +1

In this paper we give new characterizations of Riesz and conditional Riesz frames in terms of the properties of the nullspace of their synthesis operators. On the other hand, we al…

math.FA2004

Weighted projections and Riesz frames

Jorge Antezana, Gustavo Corach, Mariano Ruiz +1

Let $H$ be a (separable) Hilbert space and ${e_{k}}_{k \geq 1}$ a fixed orthonormal basis of $H$ . Motivated by many papers on scaled projections, angles of subsp…

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…