1 citations · 1 across the 13 of their papers we have counts for
21 papers
Operators on anti-dual pairs: Means of positive operators
Zsigmond Tarcsay, Ábel Göde
We develop a theory of Kubo-Ando type means for positive operators on anti-dual pairs. This framework extends the classical theory of operator means beyond bounded Hilbert space op…
Basic representation theorems of forms
Zoltán Sebestyén, Zsigmond Tarcsay
We study maximal representations of nonnegative sesquilinear forms in real or complex Hilbert spaces, that are not necessarily closed or even closable. We associate positive self-a…
Existence theorem on the UV limit of Wilsonian RG flows of Feynman measures
Andras Laszlo, Zsigmond Tarcsay, Jobst Ziebell
In nonperturbative formulation of Euclidean signature quantum field theory (QFT), the vacuum state is characterized by the Wilsonian renormalization group (RG) flow of Feynman meas…
Operators on anti-dual pairs: Lebesgue decomposition via Arlinskii's iteration
Ábel Göde, Zsigmond Tarcsay
The aim of this paper is to prove a general Lebesgue decomposition theorem for positive operators on so-called anti-dual pairs, following the iterative approach introduced by Arlin…
Operators on anti-dual pairs: Supremum and infimum of positive operators
Zsigmond Tarcsay, Ábel Göde
Our purpose in this note is to investigate the order properties of positive operators from a locally convex space into its conjugate dual. We introduce a natural generalization of…
On the running and the UV limit of Wilsonian renormalization group flows
Andras Laszlo, Zsigmond Tarcsay
In nonperturbative formulation of quantum field theory (QFT), the vacuum state is characterized by the Wilsonian renormalization group (RG) flow of Feynman type field correlators.…