We consider a problem of optimal production control of a single unreliable machine. The objective is to minimize a discounted convex inventory/backlog cost over an infinite horizon. Using the variational analysis methodology, we develop the necessary conditions of optimality in terms of the co-state dynamics. We show that an inventorythreshold control policy is optimal when the work and repair ...

A two-station tandem manufacturing system with limited buffer sizes and production capacity is considered. The problem is to examine the stability of the system and to control the service rates to meet an exogenous Poisson demand. A sufficient and necessary condition for the system stability is provided. It is shown that the optimal control policy for this finite buffer capacity problem has the...

We consider the problem of efficiently allocating simulation effort to determine which of several simulated systems have mean performance exceeding a known threshold. This determination is known as multiple comparisons with a control. Within a Bayesian formulation, the optimal fully sequential policy for allocating simulation effort is the solution to a dynamic program. We show that this dynami...

Attribute-based signatures (ABS) is a new cryptographic primitive and can play a great role in attributebased access control systems. In ABS, a signer can choose its attributes satisfying a policy of a verifier to generate a valid signature without reveal its identity or attributes, while the signature assures that the message is endorsed by an individual owning attributes the policy requiring....

This paper explores how bequests affect redistributive fiscal policies. The main premise underlying our approach is that bequests act as a signal of parental affection. It is shown that private transfers in the form of bequests may not offset public transfers to a significant extent, even though such private transfers are altruistically motivated and are strictly positive for all but a negligib...

This paper introduces a threshold policy with hysteresis (TPH) for the control of the logistic onespecies model. A nonstandard scheme is used for the discretization of the model since it results in preservation of the qualitative characteristics of the continuous-time models. Two theorems that establish the global stability of the logistic discrete model subject to the threshold policy (TP) and...

In this research, non-linear inflationary dynamics based on the concept of missing money is studied using the threshold autoregressive models based on seasonal data of the time interval (1990:04-2016:07) for the economy of Iran. The finding of the research shows that simple and Divisia liquidity growth variables are determined as threshold variables, and inflation reacts to changes in the growt...