Displaying similar documents to “Nonparametric adaptive control for discrete-time Markov processes with unbounded costs under average criterion”

Optimal stopping of a risk process

Elżbieta Ferenstein, Andrzej Sierociński (1997)

Applicationes Mathematicae

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Optimal stopping time problems for a risk process U t = u + c t - n = 0 N ( t ) X n where the number N(t) of losses up to time t is a general renewal process and the sequence of X i ’s represents successive losses are studied. N(t) and X i ’s are independent. Our goal is to maximize the expected return before the ruin time. The main results are closely related to those obtained by Boshuizen and Gouweleew [2].

Implicit Markov kernels in probability theory

Daniel Hlubinka (2002)

Commentationes Mathematicae Universitatis Carolinae

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Having Polish spaces 𝕏 , 𝕐 and we shall discuss the existence of an 𝕏 × 𝕐 -valued random vector ( ξ , η ) such that its conditional distributions K x = ( η ξ = x ) satisfy e ( x , K x ) = c ( x ) or e ( x , K x ) C ( x ) for some maps e : 𝕏 × 1 ( 𝕐 ) , c : 𝕏 or multifunction C : 𝕏 2 respectively. The problem is equivalent to the existence of universally measurable Markov kernel K : 𝕏 1 ( 𝕐 ) defined implicitly by e ( x , K x ) = c ( x ) or e ( x , K x ) C ( x ) respectively. In the paper we shall provide sufficient conditions for the existence of the desired Markov kernel. We shall discuss some special solutions of the ( e , c ) - or ( e , C ) -problem...

Higher order linear connections from first order ones

Włodzimierz M. Mikulski (2007)

Archivum Mathematicum

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We describe how find all f m -natural operators D transforming torsion free classical linear connections on m -manifolds M into r -th order linear connections D ( ) on M .

On α -normal and β -normal spaces

Aleksander V. Arhangel'skii, Lewis D. Ludwig (2001)

Commentationes Mathematicae Universitatis Carolinae

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We define two natural normality type properties, α -normality and β -normality, and compare these notions to normality. A natural weakening of Jones Lemma immediately leads to generalizations of some important results on normal spaces. We observe that every β -normal, pseudocompact space is countably compact, and show that if X is a dense subspace of a product of metrizable spaces, then X is normal if and only if X is β -normal. All hereditarily separable spaces are α -normal. A space is...