activity
20092026
most citedProjecting onto Helson matrices in Schatten classes

1 citations · 2 across the 8 of their papers we have counts for

collaborators
Showing math.FAShow all

6 papers · 1 filter

math.FA2024

Szegő Limit Theorem for Truncated Toeplitz Operators

Nazar Miheisi, Ryan O'Loughlin

We discuss generalizations of the Szegő Limit Theorem to truncated Toeplitz operators. In particular, we consider compressions of Toeplitz operators to an increasing sequence of fi…

math.FA2024

Completeness of systems of inner functions

Nazar Miheisi

For two inner functions , we give a simple sufficient condition for the system , , to be complete in the weak- to…

math.FA2023

When is the variance of one observable less than or equal to that of another with respect to all quantum states?

György Pál Gehér, Nazar Miheisi

In quantum mechanics, the well-known Loewner order expresses that one observable's expectation value is less than or equal than that of another with respect to all quantum states.…

math.FA2019★ 1 cited

Projecting onto Helson matrices in Schatten classes

Ole Fredrik Brevig, Nazar Miheisi

A Helson matrix is an infinite matrix such that the entry depends only on the product . We demonstrate that the orthogonal projection from…

math.FA2018

Restriction theorems for Hankel operators

Nazar Miheisi, Alexander Pushnitski

We consider a class of maps from integral Hankel operators to Hankel matrices, which we call restriction maps. In the simplest case, such a map is simply a restriction of the integ…

math.FA2009

Convolution operators on Banach lattices with shift-invariant norms

Nazar Miheisi

Let G be a locally compact abelian group and let μbe a complex valued regular Borel measure on G. In this paper we consider a generalisation of a class of Banach lattices introduce…