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Related papers: On the validity of the Radon-Nikodym Theorem

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A version of Radon-Nikodym theorem for the Choquet integral w.r.t. monotone measures is proved. Without any presumptive condition, we obtain a necessary and sufficient condition for the ordered pair $(\mu, \nu)$ of finite monotone measures…

Functional Analysis · Mathematics 2023-09-22 Yao Ouyang , Jun Li

The aim of this note is to establish two Radon--Nikodym type theorems for nonnegative Hermitian forms defined on a real or complex vector space. We apply these results to prove the known Radon--Nikodym theorems of the theory of…

Functional Analysis · Mathematics 2014-04-18 Zsigmond Tarcsay

In this paper we present some results concerning Gould integrability of vector functions with respect to a monotone measure on finitely purely atomic measure spaces. As an application a Radon-Nikodym theorem in this setting is obtained.

Functional Analysis · Mathematics 2016-11-15 Domenico Candeloro , Anca Croitoru , Alina GAvrilut , Anna Rita Sambucini

We present a natural and simple proof of the Radon - Nikodym theorem for measures with values in the space of bounded linear operators on a separable Hilbert space. This space is not separable, that is why it is essential to assume in the…

Functional Analysis · Mathematics 2013-03-04 S. S. Boiko , V. K. Dubovoy , A. Y. Kheifets

Some topics concerning the Gould integral are presented here: new results of integrability on finite measure spaces with values in an M-space are given, together with a Radon-Nikodym theorem relative to a Gould-type integral of real…

Functional Analysis · Mathematics 2018-09-27 Domenico Candeloro , Anca Croitoru , Alina Gavrilut , Anna Rita Sambucini

Using nonstandard analysis, an intuitive and very short proof of the Radon-Nikodym theorem is provided

Logic · Mathematics 2026-05-12 Takashi Matsunaga

Given positive measures $\nu,\mu$ on an arbitrary measurable space $(\Omega, \mathcal F)$, we construct a sequence of finite partitions $(\pi_n)_n$ of $(\Omega, \mathcal F)$ s.t. $$ \sum_{A\in \pi_n: \mu(A)>0} 1_{A} \frac{\nu(A)}{\mu(A)}…

Classical Analysis and ODEs · Mathematics 2019-09-10 Oleksii Mostovyi , Pietro Siorpaes

In this technical report, rigorous statements and formal proofs are presented for both foundational and advanced folklore theorems on the Radon-Nikodym derivative. The cases of conditional and marginal probability measures are carefully…

Information Theory · Computer Science 2025-07-11 Yaiza Bermudez , Gaetan Bisson , Iñaki Esnaola , Samir M. Perlaza

052<p type="texpara" tag="Body Text" et="abstract" >A completely $n$ -positive linear map from a locally $C^{\ast}$-algebra $A$ to another locally $C^{\ast}$-algebra $B $is an $n\times n$ matrix whose elements are continuous linear maps…

Operator Algebras · Mathematics 2007-05-23 Maria Joita

Certain countably and finitely additive measures can be associated to a given nonnegative supermartingale. Under weak assumptions on the underlying probability space, existence and (non)uniqueness results for such measures are proven.

Probability · Mathematics 2015-12-23 Nicolas Perkowski , Johannes Ruf

We interpret the probabilistic notion of unimodularity for measures on the space of rooted locally finite connected graphs in terms of the theory of measured equivalence relations. It turns out that the right framework for this consists in…

Probability · Mathematics 2015-12-29 Vadim A. Kaimanovich

Using the Radon-Nikodym theorem concerning the relation between any two measures, as well as the methods employed in loop quantum gravity, it is shown that, in gravitation, one can quantize any measure which is not even associated with…

General Relativity and Quantum Cosmology · Physics 2022-10-20 Vladimir Dzhunushaliev , Vladimir Folomeev

In this paper we will give a categorical proof of the Radon-Nikodym theorem. We will do this by describing the trivial version of the result on finite probability spaces as a natural isomorphism. We then proceed to Kan extend this…

Category Theory · Mathematics 2023-05-16 Ruben Van Belle

The paper contains a simple proof of the classical Hahn decomposition theorem for charges and, as a corollary, an explicit measurable in parameter construction of a Radon-Nikodym derivative of one measure by another.

Classical Analysis and ODEs · Mathematics 2007-05-23 D. Novikov

In this article, we introduce local completely positive $k$-linear maps between locally $C^{\ast}$-algebras and obtain Stinespring type representation by adopting the notion of "invariance" defined by J. Heo for $k$-linear maps between…

Operator Algebras · Mathematics 2021-10-01 Anindya Ghatak , Santhosh Kumar Pamula

In this paper we define the Radon-Nikodym class (RN class) of locally convex topological vector spaces. The RN class is characterized in terms of the Radon-Nikodym theorem for vector measures using integrable by seminorm derivatives. It is…

Functional Analysis · Mathematics 2022-06-28 Sokol Bush Kaliaj

Idempotent integration is an analogue of the Lebesgue integration where $\sigma$-additive measures are replaced by $\sigma$-maxitive measures. It has proved useful in many areas of mathematics such as fuzzy set theory, optimization,…

Functional Analysis · Mathematics 2014-04-14 Paul Poncet

In this paper we present a generalization of the Radon-Nikodym theorem proved by Pedersen and Takesaki. Given a normal, semifinite and faithful (n.s.f.) weight $\phi$ on a von Neumann algebra M and a strictly positive operator $\delta$,…

Operator Algebras · Mathematics 2007-05-23 Stefaan Vaes

The paper presents some weak compactness criterion for a subset $M$ of the set $\mathfrak{RM}_b(T,\mathcal{G})$ of all positive bounded Radon measures on a Hausdorff topological space $(T,\mathcal{G})$ similar to the Prokhorov criterion for…

Functional Analysis · Mathematics 2020-03-06 Valeriy K. Zakharov , Timofey V. Rodionov

We discuss a general definition of likelihood function in terms of Radon-Nikod\'{y}m derivatives. The definition is validated by the Likelihood Principle once we establish a result regarding the proportionality of likelihood functions under…

Statistics Theory · Mathematics 2021-06-22 Flávio B. Gonçalves , Pedro Franklin
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