This paper develops the mean and variance of present worth for lump-sum and series cash flows. The series cash flow model assumes a finite time horizon. The use of these calculations will enable both a realistic computation of expected present worth and also allow the analyst to calculate a variance expression for use in probabilistic investment analyses.
In this article the authors treat a diagnostic process as a control decision stochastic process . The problem is to choose an optimal control (strategy), depending on an optimality criterion. Three possible criteria of optimality of a diagnostic process are considered, namely, the average loss, average reliability, and average probability of the patient's survival.
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a result of M. Furuta concerning the homology cobordism Nike Free 6 group of homology 3-spheres, we give an infinite family of topologically slice knots which are linearly independent in the smooth knot-cobordism group.
The optimality conditions of [Lai et al. (J. Math. Anal. Appl. 230 (1999) 311)] can be used to construct two kinds of parameter-free dual models of nondifferentiable minimax fractional programming problems which involve pseudo-/quasi-convex functions. In this paper, the weak duality, strong duality, and strict converse duality theorems are established for the two dual models.