Abotaleb Sheikhali

collaborators

4 papers

math.FA2022

On the properties of the Aron-Berner regularity of bounded tri-linear maps

Neda Akhlaghi, Kazem Haghnejad Azar, Abotaleb Sheikhali

Let $f : X \times Y \times Z ⟶ W$ be a bounded tri-linear map on normed spaces. We say that $f$ is close-to-regular when $f^{t **** s} = f^{s **** t}$ and $f$ is Aron-Berener r…

math.FA2019

Some properties of bounded tri-linear maps

Abotaleb Sheikhali, Ali Ebadian, Kazem Haghnejad Azar

Let $X, Y, Z$ and $W$ be normed spaces and $f : X \times Y \times Z ⟶ W$ be a bounded tri-linear mapping. In this Article, we define the topological centers for bounded tri…

math.FA2019

Regularity of bounded tri-linear maps and the fourth adjiont of a tri-derivation

Abotaleb Sheikhali, Ali Ebadian, Kazem Haghnejad Azar

In this Article, we give a simple criterion for the regularity of a tri-linear mapping. We provide if $f : X \times Y \times Z ⟶ W$ is a bounded tri-linear mapping and $h…

math.FA2019

Close-to-regularity and completely regularity of bounded tri-linear maps

Abotaleb Sheikhali, Ali Ebadian, Kazem Haghnejad Azar

Let $f : X \times Y \times Z ⟶ W$ be a bounded tri-linear map on normed spaces. We say that $f$ is close-to-regular when $f^{t **** s} = f^{s **** t}$ and we say that $f$ is co…