摘要:

Voting schemes are expressed as AT-person, single or multistage games in extensive form with ordinal preferences. Some of the voters can be indifferent to certain outcomes. A majority rule with tie breaking is used. The voting schemes are labelled as binary or non-binary depending on whether the number of alternatives in every ballot is two or more than two. The voters are not allowed to consult one another before arriving at the result.

ISSN:0020-7721    

DOI:10.1080/00207728108963727

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor

摘要:

Recent trends in application of matroid theory to systems problems in operations research and other fields of engineering science are surveyed. Most of the significant applications have been developed in recent years in Japan, and they are connected with that part of matroid theory which deals with the minimum-weight maximum-cardinality intersection of independent sets from two matroids or polymatroids.

ISSN:0020-7721    

DOI:10.1080/00207728108963728

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor

摘要:

In a recent exact synthesis technique for feedback systems with highly uncertain non-linear plants, the non-linear plant set is replaced by an equivalent linear time invariant (lti) plant set. If it exists, the solution to the resulting Hi problem also solves the non-linear problem. However, when the system inputs are non-minimum-phase, the lti plant equivalents have both zeros and poles in the right half-plane (rhp). The feedback capabilities of such lti systems are extremely limited under the constraint of lti system stability, BO there is very little chance of a solution. Using Schauder's fixed point theorem, it is shown that here one must deliberately design for system poles in specific regions in the rhp. This defiance of conventional notions is guaranteed possible and permits a satisfactory solution for a large class of uncertain non-linear plants.

ISSN:0020-7721    

DOI:10.1080/00207728108963729

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor

摘要:

The paper deals with problems of cost-optimal and time-optimal control of a complex of operations. The considerations are confined to the case of independent operations, where no precedence-relations between operations exist. The following two problems are considered in detail : (I) optimal resource allocation with fixed performance time, integral cost function and instantaneous constraint on resource ; and (II) time-optimal resource allocation with instantaneous and integral constraints on resource. The solution concept, based on convex set theory, is presented. It allows reduction of a dynamic problem of optimization to the static one and, moreover, it implies some important properties of optimal solutions for the cases of convex and concave models of operations.

ISSN:0020-7721    

DOI:10.1080/00207728108963730

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor

摘要:

This paper deals with general parametric non-linear programming problems. First, two algorithms are presented to obtain a parametric optimal solution of the problem having a single parameter by reducing it successively to associated problems which contain a smaller number of variables. The reduction is accomplished by partitioning the variables into basic and non-basic, and also by generating a smaller problem from the non-basic variables only. It is shown that the two algorithms are essentially equivalent to each other. Next, this idea is extended to handle a certain class of multi-parametric problems. Finally, computational results of the algorithm are given.

ISSN:0020-7721    

DOI:10.1080/00207728108963731

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor

摘要:

In this paper, a general theory for large-scale functional differential systems with finite and infinite retardations is developed by employing the theory of systems of functional differential inequalities. The functional differential inequality for the subsystem with infinite retardation is developed following the results of Coleman and Mizel (1968). Finally, a comparison theorem in the framework of vector Lyapunov function has been employed to investigate the stability of hereditary interconnected systerna. An example to illustrate the results is given.

ISSN:0020-7721    

DOI:10.1080/00207728108963732

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor

摘要:

This paper gives some results concerning the convergence of sequential least squares (SLS) identifiers of autoregressive (AR) time series models. Convergence depends on the second moment ergodicity (SME) of the generating (input) process to the time series model. Since SME conditions are difficult to prove for specific generating sequences, this paper proves this condition to be satisfied with respect to two concrete classes of generating sequences, namely, martingale difference sequences and binary white noise Markov sequences to give insight to the convergence of identifiers via binary white noise interrogation inputs. This extends the result of Mann and Wald of convergence for the case of independent and identically distributed (IID) input processes to concrete non-IID input classes.

ISSN:0020-7721    

DOI:10.1080/00207728108963733

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor

摘要:

A two-unit series system with arbitrary distributions for the life-time of the units is considered. Whenever the system fails, it is brought to a repair shop where it is classified as to which unit has failed. In the case of mis-classification, there is cost incurred on erroneous repair of a good unit. Based on the life-time of the system an optimal classification rule is suggested so that the expected loss due to mis-classification is minimized. Two examples are included to illustrate the result.

ISSN:0020-7721    

DOI:10.1080/00207728108963734

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor