Results 11 to 20 of about 123,643 (248)

On Markov Moment Problem and Related Results [PDF]

open access: yesSymmetry, 2021
We prove new results and complete our recently published theorems on the vector-valued Markov moment problem, by means of polynomial approximation on unbounded subsets, also applying an extension of the positive linear operators’ result. The domain is the Banach lattice of continuous real-valued functions on a compact subset or an Lν1 space, where ν is
Cristian Octav Olteanu
openaire   +3 more sources

Existence, Uniqueness, and a Constructive Solution Algorithm for a Class of Finite Markov Moment Problems [PDF]

open access: yesSIAM Journal on Applied Mathematics, 2008
We consider a class of finite Markov moment problems with arbitrary number of positive and negative branches. We show criteria for the existence and uniqueness of solutions, and we characterize in detail the non-unique solution families. Moreover, we present a constructive algorithm to solve the moment problems numerically and prove that the algorithm ...
Gosse L, Runborg O
openaire   +7 more sources

On Markov Moment Problem, Polynomial Approximation on Unbounded Subsets, and Mazur–Orlicz Theorem [PDF]

open access: yesSymmetry, 2021
We review earlier and recent results on the Markov moment problem and related polynomial approximation on unbounded subsets. Such results allow proving the existence and uniqueness of the solutions for some Markov moment problems. This is the first aim of the paper.
Cristian Octav Olteanu
openaire   +3 more sources

The Markov power moment problem in problems of controllability and frequency extinguishing for the wave equation on a half-axis

open access: yesJournal of Mathematical Analysis and Applications, 2002
The authors prove a necessary and sufficient condition of null-controllability and approximate null-controllability for the wave equation on a half-axis. As is shown in a cited reference, the frequency extinguishing problem for a finite string is equivalent to the Markov trigonometric moment problem.
Sklyar, G.M., Fardigola, L.V.
openaire   +3 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   +1 more source

Quality assessment of reliability engineering systems [PDF]

open access: yesE3S Web of Conferences, 2023
Quality and quality assessment are key indicators in many fields. There exist various interpretations of the quality concept, such as technical, legal, and economic definitions.
Kondsrashova Elizaveta
doaj   +1 more source

An efficient probabilistic workflow for estimating induced earthquake parameters in 3D heterogeneous media [PDF]

open access: yesSolid Earth, 2022
We present an efficient probabilistic workflow for the estimation of source parameters of induced seismic events in three-dimensional heterogeneous media. Our workflow exploits a linearized variant of the Hamiltonian Monte Carlo (HMC) algorithm. Compared
L. O. M. Masfara   +3 more
doaj   +1 more source

Improved Dynamic Event-Triggered Robust Control for Flexible Robotic Arm Systems with Semi-Markov Jump Process

open access: yesSensors, 2023
In this paper, we investigate the problem of a dynamic event-triggered robust controller design for flexible robotic arm systems with continuous-time phase-type semi-Markov jump process.
Huiyan Zhang   +3 more
doaj   +1 more source

Fast Algorithms for Computing the Statistics of Pattern Matching

open access: yesIEEE Access, 2021
Pattern matching is a fundamental problem in theoretical computer science. The algorithms for pattern matching and the study on the statistics of pattern matching have found enormous applications in practical fields.
Danna Zhang, Kai Jin
doaj   +1 more source

On Hahn-Banach theorem and some of its applications

open access: yesOpen Mathematics, 2022
First, this work provides an overview of some of the Hahn-Banach type theorems. Of note, some of these extension results for linear operators found recent applications to isotonicity of convex operators on a convex cone.
Olteanu Octav
doaj   +1 more source

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