Analysis of permanence and extinction of enterprise cluster based on ecology theory
نویسندگان
چکیده
This paper is concerned with the permanence and extinction problem of enterprises cluster constituted by m satellite enterprises and a dominant enterprise. We present the model involving impulsive effect based on ecology theory, which effectively describe the competition and cooperation of enterprises cluster in real economic environment. Applying comparison theorem of impulsive differential equation, we establish sufficient conditions which ultimately affect the fate of enterprises: permanence, extinction, and co-existence. Finally, we present numerical examples to explain the economical significance of mathematical results. Keywords—Enterprise cluster; Permanence; Extinction; Impulsive; Comparison theorem
منابع مشابه
Nature of radioactive contamination in soils of the pine forest in the territory adjacent to Semipalatinsk test site
ABSTRACT Background: This work investigated radioactive contamination in soils of the pine forest in the territory adjacent to Semipalatinsk test site. Materials and Methods: Thirty samples from the soil were collected from six different a soil profile was laid out (research areas). Activity concentrations of 137Cs and 241Am were determined using a Canberra GX-2020 solid-state gamma-spectromet...
متن کاملFractal Population Ecology Theory
Abstract Purpose - The aim of this paper is to describe the population ecology theory through fractal thinking, an emergent human operating system that is creative, adaptive, healthy, and evolutionary; furthermore, a parallel is drawn between the population ecology model and the fractal structure. Top-down hierarchies are typically characterized by command and control systems of the authority t...
متن کاملChanges in a Service Oriented Enterprise: A Game Theory Approach
Service Oriented Enterprises (SOEs) are subject to constant change and variation. In this paper, the changes are considered from an economic perspective based on service culture notion. Once a change is implemented, the costs of some member services may increase, whereas the costs of some other services may reduce. We construct a game theoretic model trying to capture the possible conflicting i...
متن کاملRobust Permanence for Ecological Differential Equations, Minimax, and Discretizations
We present a sufficient condition for robust permanence of ecological (or Kolmogorov) differential equations based on average Liapunov functions. Via the minimax theorem we rederive Schreiber’s sufficient condition [S. Schreiber, J. Differential Equations, 162 (2000), pp. 400–426] in terms of Liapunov exponents and give various generalizations. Then we study robustness of permanence criteria ag...
متن کاملBook Review: 'Ecolinguistics: Language and ecology'
Ecolinguistics: language and ecology delivers an overall view and a critical approach on ecolinguistic studies. This book is an excellent resource to students, researchers, linguists and those working in the area of discourse analysis as well as ecology. The book claims presenting a news course for ecolinguistics including a framework for understanding the theory of ecolinguistics, exploration ...
متن کامل