A Time-Inhomogeneous Prendiville Model with Failures and Repairs

We consider a time-inhomogeneous Markov chain with a finite state-space which models a system in which failures and repairs can occur at random time instants. The system starts from any state <i>j</i> (operating, <i>F</i>, <i>R</i>). Due to a failure, a transition...

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Main Authors: Virginia Giorno, Amelia G. Nobile
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/10/2/251
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author Virginia Giorno
Amelia G. Nobile
author_facet Virginia Giorno
Amelia G. Nobile
author_sort Virginia Giorno
collection DOAJ
description We consider a time-inhomogeneous Markov chain with a finite state-space which models a system in which failures and repairs can occur at random time instants. The system starts from any state <i>j</i> (operating, <i>F</i>, <i>R</i>). Due to a failure, a transition from an operating state to <i>F</i> occurs after which a repair is required, so that a transition leads to the state <i>R</i>. Subsequently, there is a restore phase, after which the system restarts from one of the operating states. In particular, we assume that the intensity functions of failures, repairs and restores are proportional and that the birth-death process that models the system is a time-inhomogeneous Prendiville process.
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spelling doaj.art-a792ebdb497a4026bca26071bae8acc32023-11-23T14:34:41ZengMDPI AGMathematics2227-73902022-01-0110225110.3390/math10020251A Time-Inhomogeneous Prendiville Model with Failures and RepairsVirginia Giorno0Amelia G. Nobile1Dipartimento di Informatica, Università degli Studi di Salerno, Via Giovanni Paolo II n. 132, 84084 Salerno, ItalyDipartimento di Informatica, Università degli Studi di Salerno, Via Giovanni Paolo II n. 132, 84084 Salerno, ItalyWe consider a time-inhomogeneous Markov chain with a finite state-space which models a system in which failures and repairs can occur at random time instants. The system starts from any state <i>j</i> (operating, <i>F</i>, <i>R</i>). Due to a failure, a transition from an operating state to <i>F</i> occurs after which a repair is required, so that a transition leads to the state <i>R</i>. Subsequently, there is a restore phase, after which the system restarts from one of the operating states. In particular, we assume that the intensity functions of failures, repairs and restores are proportional and that the birth-death process that models the system is a time-inhomogeneous Prendiville process.https://www.mdpi.com/2227-7390/10/2/251continuous-time ehrenfest modelfirst-passage time densitiesproportional intensity functionsasymptotic behaviors
spellingShingle Virginia Giorno
Amelia G. Nobile
A Time-Inhomogeneous Prendiville Model with Failures and Repairs
Mathematics
continuous-time ehrenfest model
first-passage time densities
proportional intensity functions
asymptotic behaviors
title A Time-Inhomogeneous Prendiville Model with Failures and Repairs
title_full A Time-Inhomogeneous Prendiville Model with Failures and Repairs
title_fullStr A Time-Inhomogeneous Prendiville Model with Failures and Repairs
title_full_unstemmed A Time-Inhomogeneous Prendiville Model with Failures and Repairs
title_short A Time-Inhomogeneous Prendiville Model with Failures and Repairs
title_sort time inhomogeneous prendiville model with failures and repairs
topic continuous-time ehrenfest model
first-passage time densities
proportional intensity functions
asymptotic behaviors
url https://www.mdpi.com/2227-7390/10/2/251
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