M. Mortazavizadeh

collaborators

4 papers

math.FA2019

Modulation invariant spaces on locally compact abelian groups

M. Mortazavizadeh, R. Raisi Tousi

We define and investigate modulation invariant spaces on a locally compact abelian group $G$ with respect to a closed subgroup of the dual group $G$ . Using a range functi…

math.FA2019

Modulation preserving operators on locally compact abelian groups

M. Mortazavizadeh, R. Raisi tousi

Let $G$ be a locally compact abelian group and $Λ$ be a closed subgroup of the dual group $G$ . In this paper, we investigate modulation preserving operators with respect…

math.FA2019

Translation preserving operators on locally compact abelian groups

M. Mortazavizadeh, R. Raisi Tousi

We study translation preserving operators, that is operators commuting with translations by a closed subgroup of a locally compact abelian group. We show that there is a one to one…

math.FA2019

Operators preserving the representation of a semidirect product group

M. Mortazavizadeh, R. Raisi Tousi

For a locally compact abelian group $R$ with a uniform lattice $Λ$ and a group $G$ that acts on $R$ by continuous automorphisms, we study operators commuting with…