Marcos S. Ferreira

activity

20172026

most citedSome Notes on Complex Symmetric Operators

1 citations · 1 across the 2 of their papers we have counts for

collaborators

3 papers

math.FA2026

Minimality of $T_{z}^{*}$ -Invariant Subspaces of $H^{2} (D^{2})$

João Marcos R. do Carmo, Marcos S. Ferreira

In this paper, we establish necessary conditions for the minimality of infinite-dimensional $T_{z}^{*}$ -invariant subspaces of $H^{2} (D^{2})$ . More precisely, we prove that if $M\s…

math.FA2020

Universal Toeplitz operators on the Hardy space over the polydisk

Marcos Ferreira, S. Waleed Noor

The Invariant Subspace Problem (ISP) for Hilbert spaces asks if every bounded linear operator has a non-trivial closed invariant subspace. Due to the existence of universal operato…

math.FA2017★ 1 cited

Some Notes on Complex Symmetric Operators

Marcos S. Ferreira

In this paper we show that every conjugation $C$ on the Hardy-Hilbert space $H^{2}$ is of type $C = T^{*} C_{1} T$ , where $T$ is an unitary operator and $C_{1}f\left(z\right)=\overline…

Minimality of Tz∗​-Invariant Subspaces of H2(D2)

Universal Toeplitz operators on the Hardy space over the polydisk

Some Notes on Complex Symmetric Operators

Minimality of $T_{z}^{*}$ -Invariant Subspaces of $H^{2} (D^{2})$