Generalised Brègman relative entropies: a brief introduction

Fuente: arXiv
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Main Author: Kostecki, Ryszard Paweł
Format: Preprint
Published: 2023
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author Kostecki, Ryszard Paweł
author_facet Kostecki, Ryszard Paweł
contents We present some basic elements of the theory of generalised Brègman relative entropies over nonreflexive Banach spaces. Using nonlinear embeddings of Banach spaces together with the Euler--Legendre functions, this approach unifies two former approaches to Brègman relative entropy: one based on reflexive Banach spaces, another based on differential geometry. This construction allows to extend Brègman relative entropies, and related geometric and operator structures, to arbitrary-dimensional state spaces of probability, quantum, and postquantum theory. We give several examples, not considered previously in the literature.
format Preprint
id arxiv_https___arxiv_org_abs_2306_02412
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Generalised Brègman relative entropies: a brief introduction
Kostecki, Ryszard Paweł
Mathematical Physics
Information Theory
We present some basic elements of the theory of generalised Brègman relative entropies over nonreflexive Banach spaces. Using nonlinear embeddings of Banach spaces together with the Euler--Legendre functions, this approach unifies two former approaches to Brègman relative entropy: one based on reflexive Banach spaces, another based on differential geometry. This construction allows to extend Brègman relative entropies, and related geometric and operator structures, to arbitrary-dimensional state spaces of probability, quantum, and postquantum theory. We give several examples, not considered previously in the literature.
title Generalised Brègman relative entropies: a brief introduction
topic Mathematical Physics
Information Theory
url https://arxiv.org/abs/2306.02412