activity
20122020
most citedConstructing KMS states from infinite-dimensional spectral triples

10 citations · 10 across the 4 of their papers we have counts for

collaborators

7 papers

math.OA2020

Pietsch correspondence for symmetric functionals on Calkin operator spaces associated with semifinite von Neumann algebras

Galina Levitina, Alexandr Usachev

In this paper we extend the Pietsch correspondence for ideals of compact operators and traces on them to the semifinite setting. We prove that a shift-monotone space of seq…

math.FA2019

Dilation invariant Banach limits

Evgenii Semenov, Fedor Sukochev, Alexandr Usachev +1

We study two subclasses of Banach limits: the one consisting of Banach limits which are invariant with respect of the Cesàro operator and another one consists of Banach limits whic…

math.FA2019

Estimating Dixmier traces of Hankel operators in Lorentz ideals

Magnus Goffeng, Alexandr Usachev

In this paper we study Dixmier traces of powers of Hankel operators in Lorentz ideals. We extend results of Engliš-Zhang to the case of powers and general Lorentz ideals…

math.OA2018★ 10 cited

Constructing KMS states from infinite-dimensional spectral triples

Magnus Goffeng, Adam Rennie, Alexandr Usachev

We construct KMS-states from -summable semifinite spectral triples and show that in several important examples the construction coincides with well-known direct cons…

math.FA2017

Dixmier traces and residues on weak operator ideals

Magnus Goffeng, Alexandr Usachev

We develop the theory of modulated operators in general principal ideals of compact operators. For Laplacian modulated operators we establish Connes' trace formula in its local Euc…

math.OA2012

Dixmier traces generated by exponentiation invariant generalised limits

Fedor Sukochev, Alexandr Usachev, Dmitriy Zanin

We define a new class of singular positive traces on the ideal of generated by exponentiation invariant generalized limits. We prove that this new cl…