Results 1 to 10 of about 1,483,088 (317)

On differential operators associated with Markov operators [PDF]

open access: yesJournal of Functional Analysis, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Francesco Altomare   +2 more
exaly   +7 more sources

Convexity, Markov Operators, Approximation, and Related Optimization

open access: yesMathematics, 2022
The present review paper provides recent results on convexity and its applications to the constrained extension of linear operators, motivated by the existence of subgradients of continuous convex operators, the Markov moment problem and related Markov ...
Octav Olteanu
doaj   +3 more sources

Pre-Markov operators [PDF]

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2020
A positive linear operator $T$ between two unital $f$-algebras, with point separating order duals, $A$ and $B$ is called a Markov operator for which $% T\left( e_{1}\right) =e_{2}$ where $e_{1},e_{2}$ are the identities of $A$ and $B$ respectively. Let $A$ and $B$ be semiprime $f$-algebras with point separating order duals such that their second order ...
Hūlya DURU, Serkan İLTER
semanticscholar   +5 more sources

Weak Markov operators [PDF]

open access: yesFilomat, 2018
Let A and B be f -algebras with unit elements eA and eB respectively. A positive operator T from A to B satisfying T(eA) = eB is called a Markov operator. In this definition we replace unit elements with weak order units and, in this case, call T to be a weak Markov operator.
Duru, Hūlya, Ilter, Serkan
semanticscholar   +6 more sources

Iterates of Markov Operators and Constructive Approximation of Semigroups [PDF]

open access: yesConstructive Mathematical Analysis, 2019
In this paper we survey some recent results concerning the asymptotic behaviour of the iterates of a single Markov operator or of a sequence of Markov operators.
F. Altomare
semanticscholar   +2 more sources

Exploding Markov operators [PDF]

open access: yesPositivity, 2020
AbstractA special class of doubly stochastic (Markov) operators is constructed. In a sense these operators come from measure preserving transformations and inherit some of their properties, namely ergodicity and positivity of entropy, yet they may have no pointwise factors.
B. Frej
openaire   +3 more sources

On Quasi-Compact Markov Operators

open access: yesAnnals of Probability, 1974
Let $P$ be a conservative Markov operator on $L_\infty(X, \sum, m)$. The following conditions are proved to be equivalent: (i) $P$ is ergodic and quasi-compact. (ii) $P$ is ergodic and $(I - P)L_\infty$ is closed. (iii) For every $u \in L_1$ with $\int u dm = 0$ the sequence $\{\sum^N_{n=0} uP^n\}$ is weakly sequentially compact in $L_1$.
Michael Lin
exaly   +4 more sources

Iterates of Markov operators

open access: yesJournal of Approximation Theory, 1976
AbstractIn this paper we consider iterates of Markov operators of the form Φf(x)=∑j=0mf(jmϕj(x) where the ϑj's are linearly independent, nonnegative and sum to 1. We define the evaluation matrix of Φ to be Φ∗ = [ϑj(im)] and prove that the iterates of the operator converge in the operator norm if and only if the powers of the evaluation matrix converge.
Nielson, G.M   +2 more
openaire   +3 more sources

Attractors of iterated function systems and Markov operators [PDF]

open access: yesAbstract and Applied Analysis, 2003
This paper contains a review of results concerning “generalized” attractors for a large class of iterated function systems {wi:i∈I} acting on a complete separable metric space.
Józef Myjak, Tomasz Szarek
doaj   +2 more sources

Solvability of nonlinear integral equations and surjectivity of nonlinear Markov operators

open access: yesMathematical methods in the applied sciences, 2020
In the present paper, we consider integral equations, which are associated with nonlinear Markov operators acting on an infinite‐dimensional space. The solvability of these equations is examined by investigating nonlinear Markov operators.
F. Mukhamedov, O. Khakimov, A. F. Embong
semanticscholar   +2 more sources

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