135 research outputs found

    A unified treatment of single component replacement models

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    In this paper we discuss a general framework for single component replacement models. This framework is based on the regenerative structure of these models and by using results from renewal theory a unified presentation of the discounted and average finite and infinite horizon cost models is given. Finally, some well-known replacement models are discussed, and making use of the previous results an easy derivation of their cost functions is presented

    Modelling imperfect maintenance of coating systems protecting steel structures

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    Introduction to Convex and quasiconvex analysis.

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    An elementary rate of convergence proof for the deep cut ellipsoid algorithm

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    The level set method of Joo and its use in minimax.

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    Modelling imperfect maintenance of coating systems protecting steel structures

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    The level set method of Joo and its use in minimax.

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    Minimax results and finite dimensional separation

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    In this paper we review and unify some of the classes of generalized convex functions introduced by different authors to prove minimax results in infinite dimensional spaces and show the relations between those classes. We also list for the most general class already introduced by Jeyakumar (cf. [7]) an elementary proof of a minimax result. The proof of this result only uses a finite dimensional separation theorem and although this minimax result is already presented by Neumann (cf. [9]) and independently Jeyakumar (cf. [7]) we believe that the present proof is shorter and more transparent

    The level set method of Joo and its use in minimax theory.

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