Applied Semi-Markov Processes by Jacques Janssen, Raimondo Manca (auth.)

By Jacques Janssen, Raimondo Manca (auth.)

Applied Semi-Markov procedures aims to offer to the reader the instruments essential to practice semi-Markov procedures in real-life difficulties. The booklet is self-contained and, ranging from a low point of chance thoughts, progressively brings the reader to a deep wisdom of semi-Markov tactics. The publication offers homogeneous and non-homogeneous semi-Markov methods, in addition to Markov and semi-Markov rewards techniques. those suggestions are basic for lots of purposes, yet they aren't as completely awarded in different books at the topic as they're the following.

Audience

This booklet is meant for graduate scholars and researchers in arithmetic, operations study and engineering; it will possibly additionally attract actuaries and monetary managers, and someone drawn to its purposes for banks, mechanical industries for reliability features, and insurance firms.

Show description

By Jacques Janssen, Raimondo Manca (auth.)

Applied Semi-Markov procedures aims to offer to the reader the instruments essential to practice semi-Markov procedures in real-life difficulties. The booklet is self-contained and, ranging from a low point of chance thoughts, progressively brings the reader to a deep wisdom of semi-Markov tactics. The publication offers homogeneous and non-homogeneous semi-Markov methods, in addition to Markov and semi-Markov rewards techniques. those suggestions are basic for lots of purposes, yet they aren't as completely awarded in different books at the topic as they're the following.

Audience

This booklet is meant for graduate scholars and researchers in arithmetic, operations study and engineering; it will possibly additionally attract actuaries and monetary managers, and someone drawn to its purposes for banks, mechanical industries for reliability features, and insurance firms.

Show description

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Particular cases (i) 3 , is generated by one r,v. X. v. ,X^. ,X^(CD) = x^, for instance. ,X^(CO) = X^] . 32) a result often used in the sequel to evaluate the mean of a random variable using its conditional expectation with respect to some given event. v. 27) becomes: jp{Ap,(co))dP = P(Af]BlBe:5,. 14). 38) P[A\S,){o)) = P{A\coea. v. 27), we have: ^(7|3,) = ^(F). 39) is proved. v. 41) allow us to have a better understanding of the intuitive meaning of conditioning. Under independence assumptions, conditioning has absolutely no impact, for example, on the expectation or the probability, and on the contrary dependence implies that the results with or without conditioning will be different, this fact meaning that we can interpret conditioning as given additional information useful to get more precise results in the case of dependence of course.

This explains why it is necessary for models in finance and in insurance to define a new type of integral, called the ltd or stochastic integral, if we want to intregrate with respect to B (see for example Protter (1990)). Chapter 2 RENEWAL THEORY 1 PURPOSE Let us consider the following reliability problem: at time 0, the given system starts with a new component which fails at random time 7]. At this time, a new component immediately enters the system to replace the first one and fails at time c.

22) has a binomial distribution with parameters {n,p). By applying now the Central Limit Theorem, w e get the following result: S,-np la^ >iV(0,l), ^np(\-p) called de Moivre's result. f is the half-real line [0,+oo). One possible solution is to consider the truncated normal distribution to be defined by in setting all the probability mass of the normal distribution on the negative half-real line on the positive one, but then all the interesting properties of the normal distribution are lost. Also, in order to have a better approach to some financial market data, w e have to introduce the log-normal distribution.

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